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Bug#658662: drm/i915: no signal via DisplayPort on Sandy Bridge since Linux 3.2



Package: linux-2.6
Version: 3.2.2-1
Severity: important
Tags: upstream

Dear Maintainer,

Since upgrading to linux-image-3.2.0-1-amd64, an external display
connected via DisplayPort to a Sandy Bridge onboard graphics card
stopped working, and instead turns off reporting “DP no signal”.

With linux-image-3.1.0-1-amd64, the same display connected via the
DisplayPort works fine. After powering both the display and the
machine, the display first turns on when the i915 kernel module is
loaded upon boot. It shows the console with boot messages at the
maximum display resolution (1920x1080). Then the X server starts, and
the external display switches to a lower resolution (1024x768), which
seems to be the default setting of the X server. After login, I
manually switch to the maximum resolution (1920x1080) using the
command “xrandr --output DP1 --auto”.

With linux-image-3.2.0-1-amd64, after powering both the display and
the machine, the display remains dark during boot, even when the
i915 kernel module is loaded. The display first turns on only when
the X server is loaded, with the default resolution 1024x768. After
login, I manually switch to 1920x1080, but then the display reports
“DP no signal” and turns *off*.

To summarize: The external display connected via DisplayPort works
fine with Linux 3.1, while, with Linux 3.2, it works with lower
(non-native) resolutions and fails with the maximum (native)
resolution.

I noticed one peculiarity: It is possible to have a working external
display by booting into Linux 3.1 first, and then rebooting into
Linux 3.2 *without interrupting the power supply of the display*.
However, as soon as I power-cycle the display while under Linux 3.2,
it stops working again.


There is a recent thread by Keith Packard with DisplayPort-related patches:

https://lkml.org/lkml/2012/1/25/204

I tested both a kernel with only patch 1/2, as well as a kernel with
both patches 1/2 and 2/2 applied, based on the Debian kernel source
and using the test-patches script. Both kernels showed the same faulty
behaviour, i.e. the external display remains dark at the native
resolution.

If there are other potential fixes I could test, please let me know.

Thanks,
Peter

-- xrandr:
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
LVDS1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 277mm x 156mm
   1366x768       60.0*+
   1360x768       59.8     60.0  
   1024x768       60.0  
   800x600        60.3     56.2  
   640x480        59.9  
VGA1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
DP1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 477mm x 268mm
   1920x1080      60.0*+
   1680x1050      60.0  
   1600x900       60.0  
   1280x1024      60.0  
   1280x800       59.8  
   1280x720       60.0  
   1024x768       60.0  
   800x600        60.3  
   640x480        60.0  
HDMI2 disconnected (normal left inverted right x axis y axis)
HDMI3 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
DP3 disconnected (normal left inverted right x axis y axis)

-- Package-specific info:
** Version:
Linux version 3.2.0-1-amd64 (Debian 3.2.2-1) (ben@decadent.org.uk) (gcc version 4.6.2 (Debian 4.6.2-12) ) #1 SMP Wed Feb 1 08:56:58 UTC 2012

** Command line:
BOOT_IMAGE=/vmlinuz-3.2.0-1-amd64 root=/dev/mapper/vg-root ro pcie_aspm=force i915.i915_enable_rc6=1 i915.i915_enable_fbc=1 i915.lvds_downclock=1

** Not tainted

** Kernel log:
[   20.446802] [drm] Initialized drm 1.1.0 20060810
[   20.910637] IBM TrackPoint firmware: 0x0e, buttons: 3/3
[   20.928577] input: TPPS/2 IBM TrackPoint as /devices/platform/i8042/serio1/input/input4
[   20.948229] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:1b.0/input/input5
[   20.953169] HDMI status: Codec=3 Pin=5 Presence_Detect=0 ELD_Valid=0
[   20.953416] HDMI status: Codec=3 Pin=6 Presence_Detect=0 ELD_Valid=0
[   20.953667] HDMI status: Codec=3 Pin=7 Presence_Detect=0 ELD_Valid=0
[   20.953878] input: HDA Intel PCH HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input6
[   20.954053] input: HDA Intel PCH HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input7
[   20.954225] input: HDA Intel PCH HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input8
[   20.955314] i915 0000:00:02.0: power state changed by ACPI to D0
[   20.955380] i915 0000:00:02.0: power state changed by ACPI to D0
[   20.955446] i915 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[   20.955510] i915 0000:00:02.0: setting latency timer to 64
[   20.983994] mtrr: no more MTRRs available
[   20.984054] [drm] MTRR allocation failed.  Graphics performance may suffer.
[   20.984497] i915 0000:00:02.0: irq 51 for MSI/MSI-X
[   20.984501] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[   20.984562] [drm] Driver supports precise vblank timestamp query.
[   20.984650] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
[   21.992817] fbcon: inteldrmfb (fb0) is primary device
[   22.346971] Console: switching to colour frame buffer device 170x48
[   22.350019] fb0: inteldrmfb frame buffer device
[   22.350020] drm: registered panic notifier
[   22.352472] acpi device:01: registered as cooling_device4
[   22.352618] input: Video Bus as /devices/LNXSYSTM:00/device:00/PNP0A08:00/LNXVIDEO:00/input/input9
[   22.352713] ACPI: Video Device [VID] (multi-head: yes  rom: no  post: no)
[   22.352843] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
[   22.536616] EXT4-fs (dm-1): re-mounted. Opts: (null)
[   22.552359] EXT4-fs (dm-1): re-mounted. Opts: errors=remount-ro,discard
[   22.598845] loop: module loaded
[   22.739523] EXT4-fs (dm-4): mounted filesystem with ordered data mode. Opts: discard
[   22.743977] EXT4-fs (dm-3): mounted filesystem with ordered data mode. Opts: discard
[   22.748313] EXT4-fs (dm-2): mounted filesystem with ordered data mode. Opts: discard
[   23.940637] fuse init (API version 7.17)
[   23.964119] ip_tables: (C) 2000-2006 Netfilter Core Team
[   23.976705] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
[   23.985212] ip6_tables: (C) 2000-2006 Netfilter Core Team
[   24.213703] lp: driver loaded but no devices found
[   24.225401] ppdev: user-space parallel port driver
[   24.321076] e1000e 0000:00:19.0: irq 42 for MSI/MSI-X
[   24.376920] e1000e 0000:00:19.0: irq 42 for MSI/MSI-X
[   24.378531] ADDRCONF(NETDEV_UP): eth0: link is not ready
[   24.607437] Ebtables v2.0 registered
[   25.971779] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx
[   25.974988] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO
[   25.978784] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   29.229816] [drm] Changing LVDS panel from (+hsync, -vsync) to (-hsync, -vsync)

** Loaded modules:
ebtable_nat
ebtables
snd_hrtimer
acpi_cpufreq
mperf
parport_pc
ppdev
lp
cpufreq_powersave
parport
cpufreq_conservative
cpufreq_userspace
cpufreq_stats
binfmt_misc
nf_conntrack_ipv6
nf_defrag_ipv6
ip6table_filter
ip6_tables
xt_tcpudp
nf_conntrack_ipv4
nf_defrag_ipv4
xt_state
nf_conntrack
iptable_filter
ip_tables
x_tables
fuse
loop
kvm_intel
kvm
snd_hda_codec_hdmi
snd_hda_codec_conexant
i915
drm_kms_helper
drm
i2c_algo_bit
snd_hda_intel
snd_hda_codec
snd_hwdep
arc4
snd_pcm_oss
snd_mixer_oss
snd_pcm
snd_seq_midi
snd_rawmidi
snd_seq_midi_event
snd_seq
snd_timer
iwlwifi
snd_seq_device
mac80211
evdev
snd
cfg80211
tpm_tis
psmouse
i2c_i801
tpm
iTCO_wdt
serio_raw
i2c_core
soundcore
iTCO_vendor_support
ac
rfkill
tpm_bios
battery
snd_page_alloc
power_supply
video
wmi
button
processor
ext4
mbcache
jbd2
crc16
sha256_generic
aesni_intel
cryptd
aes_x86_64
aes_generic
cbc
dm_crypt
dm_mod
sd_mod
crc_t10dif
ehci_hcd
ahci
libahci
libata
scsi_mod
sdhci_pci
sdhci
mmc_core
xhci_hcd
thermal
thermal_sys
e1000e
usbcore
usb_common

** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation 2nd Generation Core Processor Family DRAM Controller [8086:0104] (rev 09)
	Subsystem: Lenovo Device [17aa:21da]
	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 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller])
	Subsystem: Lenovo Device [17aa:21da]
	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 51
	Region 0: Memory at f0000000 (64-bit, non-prefetchable) [size=4M]
	Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
	Region 4: I/O ports at 5000 [size=64]
	Expansion ROM at <unassigned> [disabled]
	Capabilities: <access denied>
	Kernel driver in use: i915

00:16.0 Communication controller [0780]: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 [8086:1c3a] (rev 04)
	Subsystem: Lenovo Device [17aa:21da]
	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 11
	Region 0: Memory at f2625000 (64-bit, non-prefetchable) [size=16]
	Capabilities: <access denied>

00:19.0 Ethernet controller [0200]: Intel Corporation 82579LM Gigabit Network Connection [8086:1502] (rev 04)
	Subsystem: Lenovo Device [17aa:21ce]
	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 42
	Region 0: Memory at f2600000 (32-bit, non-prefetchable) [size=128K]
	Region 1: Memory at f262b000 (32-bit, non-prefetchable) [size=4K]
	Region 2: I/O ports at 5080 [size=32]
	Capabilities: <access denied>
	Kernel driver in use: e1000e

00:1a.0 USB controller [0c03]: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 [8086:1c2d] (rev 04) (prog-if 20 [EHCI])
	Subsystem: Lenovo Device [17aa:21da]
	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 16
	Region 0: Memory at f262a000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci_hcd

00:1b.0 Audio device [0403]: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller [8086:1c20] (rev 04)
	Subsystem: Lenovo Device [17aa:21da]
	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 50
	Region 0: Memory at f2620000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel

00:1c.0 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 [8086:1c10] (rev b4) (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=02, subordinate=02, sec-latency=0
	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>
	Kernel driver in use: pcieport

00:1c.1 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 [8086:1c12] (rev b4) (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=03, subordinate=03, sec-latency=0
	Memory behind bridge: f2500000-f25fffff
	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>
	Kernel driver in use: pcieport

00:1c.3 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 [8086:1c16] (rev b4) (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=05, subordinate=0c, sec-latency=0
	I/O behind bridge: 00004000-00004fff
	Memory behind bridge: f1d00000-f24fffff
	Prefetchable memory behind bridge: 00000000f0400000-00000000f0bfffff
	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>
	Kernel driver in use: pcieport

00:1c.4 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 [8086:1c18] (rev b4) (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=0d, sec-latency=0
	I/O behind bridge: 00003000-00003fff
	Memory behind bridge: f1500000-f1cfffff
	Prefetchable memory behind bridge: 00000000f0c00000-00000000f13fffff
	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>
	Kernel driver in use: pcieport

00:1c.6 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 7 [8086:1c1c] (rev b4) (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=0e, subordinate=0e, sec-latency=0
	Memory behind bridge: f1400000-f14fffff
	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>
	Kernel driver in use: pcieport

00:1d.0 USB controller [0c03]: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 [8086:1c26] (rev 04) (prog-if 20 [EHCI])
	Subsystem: Lenovo Device [17aa:21da]
	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 23
	Region 0: Memory at f2629000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci_hcd

00:1f.0 ISA bridge [0601]: Intel Corporation QM67 Express Chipset Family LPC Controller [8086:1c4f] (rev 04)
	Subsystem: Lenovo Device [17aa:21da]
	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 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller [8086:1c03] (rev 04) (prog-if 01 [AHCI 1.0])
	Subsystem: Lenovo Device [17aa:21da]
	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 48
	Region 0: I/O ports at 50a8 [size=8]
	Region 1: I/O ports at 50b4 [size=4]
	Region 2: I/O ports at 50a0 [size=8]
	Region 3: I/O ports at 50b0 [size=4]
	Region 4: I/O ports at 5060 [size=32]
	Region 5: Memory at f2628000 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: ahci

00:1f.3 SMBus [0c05]: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller [8086:1c22] (rev 04)
	Subsystem: Lenovo Device [17aa:21da]
	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 C routed to IRQ 18
	Region 0: Memory at f2624000 (64-bit, non-prefetchable) [size=256]
	Region 4: I/O ports at efa0 [size=32]
	Kernel driver in use: i801_smbus

03:00.0 Network controller [0280]: Intel Corporation Centrino Ultimate-N 6300 [8086:4238] (rev 3e)
	Subsystem: Intel Corporation Centrino Ultimate-N 6300 3x3 AGN [8086:1111]
	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 49
	Region 0: Memory at f2500000 (64-bit, non-prefetchable) [size=8K]
	Capabilities: <access denied>
	Kernel driver in use: iwlwifi

0d:00.0 System peripheral [0880]: Ricoh Co Ltd MMC/SD Host Controller [1180:e822] (rev 07) (prog-if 01)
	Subsystem: Lenovo Device [17aa:21da]
	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 f1500000 (32-bit, non-prefetchable) [size=256]
	Capabilities: <access denied>
	Kernel driver in use: sdhci-pci

0e:00.0 USB controller [0c03]: NEC Corporation uPD720200 USB 3.0 Host Controller [1033:0194] (rev 04) (prog-if 30 [XHCI])
	Subsystem: Lenovo Device [17aa:21da]
	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 18
	Region 0: Memory at f1400000 (64-bit, non-prefetchable) [size=8K]
	Capabilities: <access denied>
	Kernel driver in use: xhci_hcd


** USB devices:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 004 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub


-- System Information:
Debian Release: wheezy/sid
  APT prefers testing
  APT policy: (500, 'testing'), (200, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages linux-image-3.2.0-1-amd64 depends on:
ii  debconf [debconf-2.0]                   1.5.41
ii  initramfs-tools [linux-initramfs-tool]  0.99
ii  linux-base                              3.4
ii  module-init-tools                       3.16-1

Versions of packages linux-image-3.2.0-1-amd64 recommends:
ii  firmware-linux-free  3

Versions of packages linux-image-3.2.0-1-amd64 suggests:
pn  grub-pc        1.99-14
pn  linux-doc-3.2  <none>

Versions of packages linux-image-3.2.0-1-amd64 is related to:
pn  firmware-atheros        <none>
pn  firmware-bnx2           <none>
pn  firmware-bnx2x          <none>
pn  firmware-brcm80211      <none>
pn  firmware-intelwimax     <none>
pn  firmware-ipw2x00        <none>
pn  firmware-ivtv           <none>
pn  firmware-iwlwifi        0.35
pn  firmware-libertas       <none>
pn  firmware-linux          <none>
pn  firmware-linux-nonfree  <none>
pn  firmware-myricom        <none>
pn  firmware-netxen         <none>
pn  firmware-qlogic         <none>
pn  firmware-ralink         <none>
pn  firmware-realtek        <none>
pn  xen-hypervisor          <none>

-- debconf information:
  linux-image-3.2.0-1-amd64/postinst/depmod-error-initrd-3.2.0-1-amd64: false
  linux-image-3.2.0-1-amd64/postinst/missing-firmware-3.2.0-1-amd64:
  linux-image-3.2.0-1-amd64/postinst/ignoring-ramdisk:
  linux-image-3.2.0-1-amd64/prerm/removing-running-kernel-3.2.0-1-amd64: true



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