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Bug#602009: marked as done (linux-image-2.6.36-trunk-amd64: i915.powersave option is not respected in 2.6.36)



Your message dated Sun, 12 Jun 2011 21:15:49 -0500
with message-id <20110613021549.GA3214@elie>
and subject line Re: linux-image-2.6.36-trunk-amd64: i915.powersave option is not respected in 2.6.36
has caused the Debian Bug report #602009,
regarding linux-image-2.6.36-trunk-amd64: i915.powersave option is not respected in 2.6.36
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
602009: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=602009
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message ---
Package: linux-2.6
Version: 2.6.36-1~experimental.1
Severity: normal


Hi, due to bug #580601, I have to use i915.powersave=0 in /etc/modprobe.d.
This worked fine from 2.6.32 to 2.6.35 with all versions I tested from
experimental. However, powersave is always 1 with 2.6.36 (which causes the
problems described in the aforementioned bug report).

Compare the output of the following commands when booted in 2.6.35:

fernando@vostro:~$ sudo cat /sys/module/i915/parameters/powersave 
0
fernando@vostro:~$ grep i915 /etc/modprobe.d/*
/etc/modprobe.d/i915-kms.conf:options i915 modeset=1
/etc/modprobe.d/local.conf:options i915 powersave=0
fernando@vostro:~$

To the output of the same commands when booted in 2.6.36:

fernando@vostro:~$ uname -a
Linux vostro 2.6.36-trunk-amd64 #1 SMP Wed Oct 27 14:28:29 UTC 2010 x86_64
GNU/Linux
fernando@vostro:~$ sudo cat /sys/module/i915/parameters/powersave 
1
fernando@vostro:~$ grep i915 /etc/modprobe.d/*
/etc/modprobe.d/i915-kms.conf:options i915 modeset=1
/etc/modprobe.d/local.conf:options i915 powersave=0
fernando@vostro:~$

I can reproduce it every time, it's always 1 with 2.6.36.

I also have the following two options set in /etc/modprobe.d/local.conf:

options b43 pio=1
options snd-hda-intel model=dell-vostro

And those options are respected correctly (they work as they should and
/sys/modules/{b43,snd_hda_intel}/parameters show the settings I've defined),
so it looks like it's a problem with i915 only.

I've used that option with kernels 2.6.33, 34 and 35, and it has always worked
fine previously, so the bug was probably introduced in 2.6.36.

Please let me know if you need any more info.

-- Package-specific info:
** Version:
Linux version 2.6.36-trunk-amd64 (Debian 2.6.36-1~experimental.1) (max@stro.at) (gcc version 4.4.5 (Debian 4.4.5-5) ) #1 SMP Wed Oct 27 14:28:29 UTC 2010

** Command line:
BOOT_IMAGE=/boot/vmlinuz-2.6.36-trunk-amd64 root=UUID=745ddfbd-1368-4bcb-b307-efbe218c195a ro quiet splash

** Not tainted

** Kernel log:
[    2.204430] USB Mass Storage support registered.
[    2.308010] usb 2-5: new high speed USB device using ehci_hcd and address 3
[    2.515208] usb 2-5: New USB device found, idVendor=064e, idProduct=8100
[    2.515211] usb 2-5: New USB device strings: Mfr=2, Product=1, SerialNumber=0
[    2.515214] usb 2-5: Product: Integrated_Webcam_2M
[    2.515215] usb 2-5: Manufacturer: SuYin
[    2.808022] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[    2.825560] ata2.00: ATAPI: TSSTcorp DVD+/-RW TS-L633C, DW40, max UDMA/100
[    2.825563] ata2.00: applying bridge limits
[    2.843412] ata2.00: configured for UDMA/100
[    2.857791] scsi 1:0:0:0: CD-ROM            TSSTcorp DVD+-RW TS-L633C DW40 PQ: 0 ANSI: 5
[    3.176016] ata5: SATA link down (SStatus 0 SControl 300)
[    3.204602] scsi 6:0:0:0: Direct-Access     WD       1200BEV External 1.75 PQ: 0 ANSI: 4
[    3.512017] ata6: SATA link down (SStatus 0 SControl 300)
[    3.543564] sd 0:0:0:0: [sda] 312581808 512-byte logical blocks: (160 GB/149 GiB)
[    3.543610] sd 0:0:0:0: [sda] Write Protect is off
[    3.543613] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
[    3.543632] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[    3.552618] sr0: scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda tray
[    3.552621] cdrom: Uniform CD-ROM driver Revision: 3.20
[    3.552871] sr 1:0:0:0: Attached scsi CD-ROM sr0
[    3.553593] sd 6:0:0:0: [sdb] 234441648 512-byte logical blocks: (120 GB/111 GiB)
[    3.554088] sd 6:0:0:0: [sdb] Write Protect is off
[    3.554090] sd 6:0:0:0: [sdb] Mode Sense: 23 00 00 00
[    3.554092] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[    3.555213] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[    3.631910]  sda: sda1 < sda5 sda6 sda7 >
[    3.632443] sd 0:0:0:0: [sda] Attached SCSI disk
[    4.777467]  sdb: unknown partition table
[    4.778973] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[    4.779010] sd 6:0:0:0: [sdb] Attached SCSI disk
[    4.790691] sd 0:0:0:0: Attached scsi generic sg0 type 0
[    4.791083] sr 1:0:0:0: Attached scsi generic sg1 type 5
[    4.791472] sd 6:0:0:0: Attached scsi generic sg2 type 0
[    5.585592] PM: Starting manual resume from disk
[    5.585595] PM: Resume from partition 8:7
[    5.585596] PM: Checking hibernation image.
[    5.585735] PM: Error -22 checking image file
[    5.585736] PM: Resume from disk failed.
[    5.640023] EXT3-fs: barriers not enabled
[    5.652029] kjournald starting.  Commit interval 5 seconds
[    5.652060] EXT3-fs (sda5): mounted filesystem with ordered data mode
[    7.044090] udev[409]: starting version 164
[    7.463465] ACPI: acpi_idle registered with cpuidle
[    7.481376] ACPI: AC Adapter [AC] (on-line)
[    7.511206] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
[    7.523978] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
[    7.578826] Monitor-Mwait will be used to enter C-1 state
[    7.589194] Monitor-Mwait will be used to enter C-2 state
[    7.595248] Monitor-Mwait will be used to enter C-3 state
[    7.595263] Marking TSC unstable due to TSC halts in idle
[    7.604920] Switching to clocksource hpet
[    7.673867] ACPI: Battery Slot [BAT0] (battery present)
[    7.674007] ACPI: WMI: Mapper loaded
[    7.803922] i801_smbus 0000:00:1f.3: PCI INT B -> GSI 17 (level, low) -> IRQ 17
[    7.868248] input: Dell WMI hotkeys as /devices/virtual/input/input5
[    7.893771] dcdbas dcdbas: Dell Systems Management Base Driver (version 5.6.0-3.2)
[    7.999580] input: PS/2 Mouse as /devices/platform/i8042/serio1/input/input6
[    8.002287] input: PC Speaker as /devices/platform/pcspkr/input/input7
[    8.017448] input: AlpsPS/2 ALPS GlidePoint as /devices/platform/i8042/serio1/input/input8
[    8.243324] Linux video capture interface: v2.00
[    8.426342] uvcvideo: Found UVC 1.00 device Integrated_Webcam_2M (064e:8100)
[    8.439645] input: Integrated_Webcam_2M as /devices/pci0000:00/0000:00:1d.7/usb2/2-5/2-5:1.0/input/input9
[    8.439695] usbcore: registered new interface driver uvcvideo
[    8.439697] USB Video Class driver (v0.1.0)
[    8.465927] cfg80211: Calling CRDA to update world regulatory domain
[    8.805207] HDA Intel 0000:00:1b.0: PCI INT A -> GSI 21 (level, low) -> IRQ 21
[    8.805274]   alloc irq_desc for 44 on node -1
[    8.805277]   alloc kstat_irqs on node -1
[    8.805291] HDA Intel 0000:00:1b.0: irq 44 for MSI/MSI-X
[    8.805320] HDA Intel 0000:00:1b.0: setting latency timer to 64
[    8.900125] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:1b.0/input/input10
[    9.125137] b43-phy0: Broadcom 4312 WLAN found (core revision 15)
[    9.404721] phy0: Selected rate control algorithm 'minstrel_ht'
[    9.405192] Registered led device: b43-phy0::tx
[    9.405209] Registered led device: b43-phy0::rx
[    9.405225] Registered led device: b43-phy0::radio
[    9.405282] Broadcom 43xx driver loaded [ Features: PMLS, Firmware-ID: FW13 ]
[   10.658459] Adding 3905532k swap on /dev/sda7.  Priority:-1 extents:1 across:3905532k 
[   10.966171] EXT3-fs (sda5): using internal journal
[   11.118796] loop: module loaded
[   11.801031] EXT3-fs: barriers not enabled
[   11.801199] kjournald starting.  Commit interval 5 seconds
[   11.801472] EXT3-fs (sda6): using internal journal
[   11.801476] EXT3-fs (sda6): mounted filesystem with ordered data mode
[   12.399835] ip_tables: (C) 2000-2006 Netfilter Core Team
[   12.456408] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
[   14.822452] input: ACPI Virtual Keyboard Device as /devices/virtual/input/input11
[   23.748244] b43-phy0: Loading firmware version 478.104 (2008-07-01 00:50:23)
[   29.285163] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[   29.287639] r8169 0000:09:00.0: eth0: link down
[   29.287893] ADDRCONF(NETDEV_UP): eth0: link is not ready
[   32.112892] wlan0: authenticate with 00:21:91:34:bb:6b (try 1)
[   32.115557] wlan0: authenticated
[   32.115569] wlan0: associate with 00:21:91:34:bb:6b (try 1)
[   32.122417] wlan0: RX AssocResp from 00:21:91:34:bb:6b (capab=0x431 status=0 aid=1)
[   32.122420] wlan0: associated
[   32.129114] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[   42.304045] wlan0: no IPv6 routers present
[  142.756725] lo: Disabled Privacy Extensions

** Model information
sys_vendor: Dell Inc.
product_name: Vostro 1014                     
product_version: 
chassis_vendor: Dell Inc.
chassis_version: 
bios_vendor: Dell Inc.
bios_version: A02
board_vendor: Dell Inc.
board_name:       
board_version:    

** Loaded modules:
Module                  Size  Used by
acpi_cpufreq            5335  1 
mperf                   1259  1 acpi_cpufreq
cpufreq_conservative     7646  0 
cpufreq_stats           2633  0 
cpufreq_powersave        942  0 
cpufreq_userspace       2032  0 
uinput                  6910  1 
xt_tcpudp               2311  1 
nf_conntrack_ipv4       9777  1 
nf_defrag_ipv4          1259  1 nf_conntrack_ipv4
xt_state                1183  1 
nf_conntrack           47379  2 nf_conntrack_ipv4,xt_state
iptable_filter          1376  1 
ip_tables              14194  1 iptable_filter
x_tables               14317  4 xt_tcpudp,xt_state,iptable_filter,ip_tables
loop                   12602  0 
firewire_sbp2          11439  0 
arc4                    1330  2 
ecb                     1881  2 
b43                   149211  0 
rng_core                3118  1 b43
mac80211              162471  1 b43
snd_hda_codec_conexant    29030  1 
snd_hda_intel          19642  0 
snd_hda_codec          66997  2 snd_hda_codec_conexant,snd_hda_intel
tpm_tis                 7045  0 
tpm                     9635  1 tpm_tis
snd_hwdep               5468  1 snd_hda_codec
cfg80211              116839  2 b43,mac80211
uvcvideo               51487  0 
tpm_bios                4661  1 tpm
snd_pcm                61725  2 snd_hda_intel,snd_hda_codec
joydev                  9144  0 
videodev               53302  1 uvcvideo
snd_seq                42454  0 
dell_laptop             5440  0 
snd_timer              16288  2 snd_pcm,snd_seq
snd_seq_device          4531  1 snd_seq
evdev                   7330  16 
rfkill                 13886  2 cfg80211,dell_laptop
snd                    47020  8 snd_hda_codec_conexant,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_seq,snd_timer,snd_seq_device
v4l1_compat            11622  2 uvcvideo,videodev
pcspkr                  1739  0 
soundcore               4598  1 snd
v4l2_compat_ioctl32     9011  1 videodev
dcdbas                  4928  1 dell_laptop
dell_wmi                2595  0 
snd_page_alloc          6305  2 snd_hda_intel,snd_pcm
i2c_i801                7718  0 
serio_raw               3742  0 
psmouse                44949  0 
wmi                     7209  1 dell_wmi
shpchp                 21955  0 
pci_hotplug            19711  1 shpchp
battery                 5566  0 
ac                      2232  0 
processor              25907  2 acpi_cpufreq
ext3                  106518  2 
jbd                    36840  1 ext3
mbcache                 5088  1 ext3
sg                     19079  0 
sr_mod                 12887  0 
sd_mod                 27506  4 
cdrom                  29785  1 sr_mod
crc_t10dif              1300  1 sd_mod
usb_storage            39287  0 
i915                  272515  3 
ahci                   19473  3 
libahci                15971  1 ahci
drm_kms_helper         21445  1 i915
libata                134058  2 ahci,libahci
uhci_hcd               18266  0 
ehci_hcd               31054  0 
drm                   155412  3 i915,drm_kms_helper
ssb                    37506  1 b43
sdhci_pci               6049  0 
sdhci                  14142  1 sdhci_pci
i2c_algo_bit            4105  1 i915
firewire_ohci          21898  0 
scsi_mod              154308  6 firewire_sbp2,sg,sr_mod,sd_mod,usb_storage,libata
usbcore               118280  5 uvcvideo,usb_storage,uhci_hcd,ehci_hcd
i2c_core               16346  6 videodev,i2c_i801,i915,drm_kms_helper,drm,i2c_algo_bit
pcmcia                 28785  2 b43,ssb
r8169                  28581  0 
video                  18617  1 i915
mmc_core               52488  3 b43,ssb,sdhci
thermal                12014  0 
led_class               2187  2 b43,sdhci
button                  4706  1 i915
mii                     3266  1 r8169
firewire_core          42193  2 firewire_sbp2,firewire_ohci
crc_itu_t               1331  1 firewire_core
pcmcia_core            10413  1 pcmcia
thermal_sys            11764  3 processor,video,thermal
output                  1748  1 video
nls_base                6369  1 usbcore

** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub [8086:2a40] (rev 07)
	Subsystem: Dell Device [1028:0401]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
	Latency: 0
	Capabilities: <access denied>
	Kernel driver in use: agpgart-intel

00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller])
	Subsystem: Dell Device [1028:0401]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 43
	Region 0: Memory at f6c00000 (64-bit, non-prefetchable) [size=4M]
	Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
	Region 4: I/O ports at efe8 [size=8]
	Expansion ROM at <unassigned> [disabled]
	Capabilities: <access denied>
	Kernel driver in use: i915

00:02.1 Display controller [0380]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a43] (rev 07)
	Subsystem: Dell Device [1028:0401]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Region 0: Memory at f6b00000 (64-bit, non-prefetchable) [size=1M]
	Capabilities: <access denied>

00:1a.0 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 [8086:2937] (rev 03) (prog-if 00 [UHCI])
	Subsystem: Dell Device [1028:0401]
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 20
	Region 4: I/O ports at 6f60 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: uhci_hcd

00:1a.1 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 [8086:2938] (rev 03) (prog-if 00 [UHCI])
	Subsystem: Dell Device [1028:0401]
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin B routed to IRQ 21
	Region 4: I/O ports at 6f80 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: uhci_hcd

00:1a.2 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 [8086:2939] (rev 03) (prog-if 00 [UHCI])
	Subsystem: Dell Device [1028:0401]
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin C routed to IRQ 22
	Region 4: I/O ports at 6fa0 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: uhci_hcd

00:1a.7 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 [8086:293c] (rev 03) (prog-if 20 [EHCI])
	Subsystem: Dell Device [1028:0401]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin C routed to IRQ 22
	Region 0: Memory at fed1c400 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci_hcd

00:1b.0 Audio device [0403]: Intel Corporation 82801I (ICH9 Family) HD Audio Controller [8086:293e] (rev 03)
	Subsystem: Dell Device [1028:0401]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 44
	Region 0: Memory at f6afc000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: HDA Intel

00:1c.0 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 [8086:2940] (rev 03) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Bus: primary=00, secondary=0b, subordinate=0b, sec-latency=0
	I/O behind bridge: 00002000-00002fff
	Memory behind bridge: 80000000-801fffff
	Prefetchable memory behind bridge: 0000000080200000-00000000803fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>

00:1c.1 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 [8086:2942] (rev 03) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Bus: primary=00, secondary=0c, subordinate=0c, sec-latency=0
	I/O behind bridge: 00003000-00003fff
	Memory behind bridge: f6900000-f69fffff
	Prefetchable memory behind bridge: 0000000080400000-00000000805fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>

00:1c.3 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 4 [8086:2946] (rev 03) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Bus: primary=00, secondary=0d, subordinate=0e, sec-latency=0
	I/O behind bridge: 0000d000-0000dfff
	Memory behind bridge: f6600000-f68fffff
	Prefetchable memory behind bridge: 00000000f0000000-00000000f01fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>

00:1c.4 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 [8086:2948] (rev 03) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Bus: primary=00, secondary=0f, subordinate=0f, sec-latency=0
	I/O behind bridge: 00004000-00004fff
	Memory behind bridge: f6500000-f65fffff
	Prefetchable memory behind bridge: 0000000080600000-00000000807fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>

00:1c.5 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 6 [8086:294a] (rev 03) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Bus: primary=00, secondary=09, subordinate=09, sec-latency=0
	I/O behind bridge: 0000c000-0000cfff
	Memory behind bridge: f6400000-f64fffff
	Prefetchable memory behind bridge: 00000000f0200000-00000000f02fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>

00:1d.0 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 [8086:2934] (rev 03) (prog-if 00 [UHCI])
	Subsystem: Dell Device [1028:0401]
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 20
	Region 4: I/O ports at 6f00 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: uhci_hcd

00:1d.1 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 [8086:2935] (rev 03) (prog-if 00 [UHCI])
	Subsystem: Dell Device [1028:0401]
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin B routed to IRQ 21
	Region 4: I/O ports at 6f20 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: uhci_hcd

00:1d.2 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 [8086:2936] (rev 03) (prog-if 00 [UHCI])
	Subsystem: Dell Device [1028:0401]
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin C routed to IRQ 22
	Region 4: I/O ports at 6f40 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: uhci_hcd

00:1d.7 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 [8086:293a] (rev 03) (prog-if 20 [EHCI])
	Subsystem: Dell Device [1028:0401]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 20
	Region 0: Memory at fed1c000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci_hcd

00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448] (rev 93) (prog-if 01 [Subtractive decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Bus: primary=00, secondary=02, subordinate=02, sec-latency=32
	Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>

00:1f.0 ISA bridge [0601]: Intel Corporation ICH9M LPC Interface Controller [8086:2919] (rev 03)
	Subsystem: Dell Device [1028:0401]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Capabilities: <access denied>

00:1f.2 SATA controller [0106]: Intel Corporation ICH9M/M-E SATA AHCI Controller [8086:2929] (rev 03) (prog-if 01 [AHCI 1.0])
	Subsystem: Dell Device [1028:0401]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin B routed to IRQ 42
	Region 0: I/O ports at 6e70 [size=8]
	Region 1: I/O ports at 6e78 [size=4]
	Region 2: I/O ports at 6e80 [size=8]
	Region 3: I/O ports at 6e88 [size=4]
	Region 4: I/O ports at 6ea0 [size=32]
	Region 5: Memory at fed1c800 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: ahci

00:1f.3 SMBus [0c05]: Intel Corporation 82801I (ICH9 Family) SMBus Controller [8086:2930] (rev 03)
	Subsystem: Dell Device [1028:0401]
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Interrupt: pin B routed to IRQ 17
	Region 0: Memory at f6afbf00 (64-bit, non-prefetchable) [size=256]
	Region 4: I/O ports at 1100 [size=32]
	Kernel driver in use: i801_smbus

09:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 03)
	Subsystem: Dell Device [1028:0401]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 40
	Region 0: I/O ports at ce00 [size=256]
	Region 2: Memory at f0204000 (64-bit, prefetchable) [size=4K]
	Region 4: Memory at f0200000 (64-bit, prefetchable) [size=16K]
	[virtual] Expansion ROM at f0220000 [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: r8169

0c:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g LP-PHY [14e4:4315] (rev 01)
	Subsystem: Dell Wireless 1397 WLAN Mini-Card [1028:000c]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 17
	Region 0: Memory at f69fc000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: b43-pci-bridge

0f:00.0 SD Host controller [0805]: Ricoh Co Ltd Device [1180:e822] (rev 01)
	Subsystem: Dell Device [1028:0401]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 16
	Region 0: Memory at f65ff600 (32-bit, non-prefetchable) [size=256]
	Capabilities: <access denied>
	Kernel driver in use: sdhci-pci

0f:00.1 System peripheral [0880]: Ricoh Co Ltd Device [1180:e230] (rev 01)
	Subsystem: Dell Device [1028:0401]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin B routed to IRQ 11
	Region 0: Memory at f65ff700 (32-bit, non-prefetchable) [size=256]
	Capabilities: <access denied>

0f:00.3 FireWire (IEEE 1394) [0c00]: Ricoh Co Ltd Device [1180:e832] (rev 01) (prog-if 10 [OHCI])
	Subsystem: Dell Device [1028:0401]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin D routed to IRQ 41
	Region 0: Memory at f65ff800 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: firewire_ohci


** USB devices:
not available


-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.36-trunk-amd64 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages linux-image-2.6.36-trunk-amd64 depends on:
ii  debconf [debconf 1.5.36                  Debian configuration management sy
ii  initramfs-tools  0.98.5                  tools for generating an initramfs
ii  linux-base       2.6.36-1~experimental.1 Linux image base package
ii  module-init-tool 3.12-1                  tools for managing Linux kernel mo

Versions of packages linux-image-2.6.36-trunk-amd64 recommends:
pn  firmware-linux-free           <none>     (no description available)

Versions of packages linux-image-2.6.36-trunk-amd64 suggests:
pn  grub | lilo                   <none>     (no description available)
pn  linux-doc-2.6.36              <none>     (no description available)

Versions of packages linux-image-2.6.36-trunk-amd64 is related to:
pn  firmware-bnx2                 <none>     (no description available)
pn  firmware-bnx2x                <none>     (no description available)
pn  firmware-ipw2x00              <none>     (no description available)
pn  firmware-ivtv                 <none>     (no description available)
pn  firmware-iwlwifi              <none>     (no description available)
pn  firmware-linux                <none>     (no description available)
pn  firmware-linux-nonfree        <none>     (no description available)
pn  firmware-qlogic               <none>     (no description available)
ii  firmware-ralink               0.27       Binary firmware for Ralink wireles
pn  xen-hypervisor                <none>     (no description available)

-- debconf information:
* linux-image-2.6.36-trunk-amd64/postinst/missing-firmware-2.6.36-trunk-amd64:
  linux-image-2.6.36-trunk-amd64/prerm/removing-running-kernel-2.6.36-trunk-amd64: true
  linux-image-2.6.36-trunk-amd64/postinst/ignoring-do-bootloader-2.6.36-trunk-amd64:
  linux-image-2.6.36-trunk-amd64/postinst/depmod-error-initrd-2.6.36-trunk-amd64: false



--- End Message ---
--- Begin Message ---
Version: 2.6.37~rc4-1~experimental.1

Fernando Lemos wrote:

> Chris Wilson's reply shed some light on this and I now understand
> what's going on. I commented up i915.powersave=0 to test if #580601
> was gone in 2.6.36, and that made into the initrd, as I found out
> after examining it. Running update-initramfs -k all -u solved the
> issue.
>
> In 2.6.36, as Chris Wilson stated,
> /sys/modules/i915/parameters/powersave is 0400. I'm led to believe
> that at some point in initialization, after the root filesystem is
> mounted, modprobe goes over /etc/modprobe.d again to reset the
> options. This might be why leaving i915.powersave=0 commented out in
> the initrd worked before 2.6.36. If this is the case, then it might be
> nice to have the commit mentioned in the f.d.o bug report backported,
> perhaps.

Weird.  Since the regression on the kernel side was fixed by
v2.6.37-rc3~7^2~17 (drm/i915: Allow powersave modparam to be adjusted
at runtime, 2010-11-02), I'm marking this as done.

Thanks for tracking it down.


--- End Message ---

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