Bug#891463: linux-image-4.15.0-1-amd64: Regression from 4.13 to 4.14 due to the use of alternate fixed mode for eDP
Package: src:linux
Version: 4.15.4-1
Severity: important
Tags: upstream
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Hash: SHA512
Hi,
The introduction of commit dc911f5bd8aa (drm/i915/edp: Allow alternate
fixed mode for eDP if available.) causes severe performance degradations
on my system, especially noticeable while playing video games. There are
some workarounds though:
- - Setting the screen refresh rate below 60 Hz. Might be inconvenient in
certain circumstances.
- - Using Jim Bride’s patch¹. According to some people it cures the issue.
Contrary to the above workaround, this one I did not test. It should
be noted that it seems to have fall through the cracks as I don’t see
any reference to it in Linus' tree.
As we are going to use 4.15.x for some more time, I propose that we
revert the aforementioned commit until a solution is found upstream.
Thought?
Cheers,
Vincent
¹ https://bugs.freedesktop.org/attachment.cgi?id=135277
- -- Package-specific info:
** Version:
Linux version 4.15.0-1-amd64 (debian-kernel@lists.debian.org) (gcc version 7.3.0 (Debian 7.3.0-3)) #1 SMP Debian 4.15.4-1 (2018-02-18)
** Command line:
BOOT_IMAGE=/boot/vmlinuz-4.15.0-1-amd64 root=UUID=05885802-d6d1-4a25-b7ef-8c3e00c144b0 ro quiet pcie_aspm=force elevator=deadline intel_pstate=disable apparmor=1 security=apparmor
** Tainted: U (64)
* Userspace-defined naughtiness.
** Kernel log:
Unable to read kernel log; any relevant messages should be attached
** Model information
sys_vendor: ASUSTeK COMPUTER INC.
product_name: UX31A
product_version: 1.0
chassis_vendor: ASUSTeK COMPUTER INC.
chassis_version: 1.0
bios_vendor: American Megatrends Inc.
bios_version: UX31A.219
board_vendor: ASUSTeK COMPUTER INC.
board_name: UX31A
board_version: 1.0
** Loaded modules:
xt_CHECKSUM
iptable_mangle
devlink
ipt_MASQUERADE
nf_nat_masquerade_ipv4
iptable_nat
nf_conntrack_ipv4
nf_defrag_ipv4
nf_nat_ipv4
nf_nat
nf_conntrack
xt_tcpudp
bridge
stp
llc
iptable_filter
ctr
ccm
fuse
arc4
binfmt_misc
uvcvideo
videobuf2_vmalloc
videobuf2_memops
videobuf2_v4l2
videobuf2_core
intel_rapl
btusb
videodev
x86_pkg_temp_thermal
iTCO_wdt
intel_powerclamp
coretemp
media
btrtl
iTCO_vendor_support
asus_nb_wmi
btbcm
asus_wmi
kvm_intel
btintel
sparse_keymap
rtsx_usb_ms
bluetooth
memstick
kvm
irqbypass
drbg
crct10dif_pclmul
snd_hda_codec_hdmi
ansi_cprng
crc32_pclmul
snd_hda_codec_realtek
snd_hda_codec_generic
ecdh_generic
ghash_clmulni_intel
intel_cstate
iwlmvm
mac80211
iwlwifi
intel_uncore
intel_rapl_perf
evdev
joydev
pcspkr
serio_raw
snd_hda_intel
snd_hda_codec
cfg80211
i915
snd_hda_core
rfkill
snd_hwdep
lpc_ich
drm_kms_helper
sg
shpchp
snd_pcm
snd_timer
snd
drm
soundcore
i2c_algo_bit
wmi
button
int3403_thermal
acpi_als
kfifo_buf
video
battery
industrialio
ac
int3402_thermal
int340x_thermal_zone
int3400_thermal
asus_wireless
acpi_thermal_rel
acpi_cpufreq
ib_iser
rdma_cm
iw_cm
ib_cm
ib_core
configfs
iscsi_tcp
libiscsi_tcp
libiscsi
scsi_transport_iscsi
loop
parport_pc
ppdev
lp
parport
sunrpc
ip_tables
x_tables
autofs4
ext4
crc16
mbcache
jbd2
fscrypto
ecb
rtsx_usb_sdmmc
mmc_core
rtsx_usb
mfd_core
btrfs
zstd_decompress
zstd_compress
xxhash
raid10
raid456
async_raid6_recov
async_memcpy
async_pq
async_xor
async_tx
xor
hid_generic
usbhid
hid
raid6_pq
libcrc32c
crc32c_generic
raid1
raid0
multipath
linear
md_mod
sd_mod
crc32c_intel
aesni_intel
ahci
libahci
i2c_i801
aes_x86_64
xhci_pci
crypto_simd
cryptd
glue_helper
libata
ehci_pci
xhci_hcd
ehci_hcd
psmouse
scsi_mod
usbcore
usb_common
thermal
fan
** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation 3rd Gen Core processor DRAM Controller [8086:0154] (rev 09)
Subsystem: ASUSTeK Computer Inc. Zenbook Prime UX31A [1043:1517]
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: ivb_uncore
00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. Zenbook Prime UX31A [1043:1517]
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 28
Region 0: Memory at f7800000 (64-bit, non-prefetchable) [size=4M]
Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
Region 4: I/O ports at f000 [size=64]
[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: i915
Kernel modules: i915
00:04.0 Signal processing controller [1180]: Intel Corporation 3rd Gen Core Processor Thermal Subsystem [8086:0153] (rev 09)
Subsystem: ASUSTeK Computer Inc. Zenbook Prime UX31A [1043:1517]
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 dfe08000 (64-bit, non-prefetchable) [size=32K]
Capabilities: <access denied>
00:14.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller [8086:1e31] (rev 04) (prog-if 30 [XHCI])
Subsystem: ASUSTeK Computer Inc. Zenbook Prime UX31A [1043:1517]
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 26
Region 0: Memory at f7d00000 (64-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: xhci_hcd
Kernel modules: xhci_pci
00:16.0 Communication controller [0780]: Intel Corporation 7 Series/C216 Chipset Family MEI Controller #1 [8086:1e3a] (rev 04)
Subsystem: ASUSTeK Computer Inc. Zenbook Prime UX31A [1043:1517]
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 f7d22000 (64-bit, non-prefetchable) [size=16]
Capabilities: <access denied>
Kernel modules: mei_me
00:1a.0 USB controller [0c03]: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #2 [8086:1e2d] (rev 04) (prog-if 20 [EHCI])
Subsystem: ASUSTeK Computer Inc. Zenbook Prime UX31A [1043:1517]
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 f7d20000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci-pci
Kernel modules: ehci_pci
00:1b.0 Audio device [0403]: Intel Corporation 7 Series/C216 Chipset Family High Definition Audio Controller [8086:1e20] (rev 04)
Subsystem: ASUSTeK Computer Inc. Zenbook Prime UX31A [1043:1517]
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 30
Region 0: Memory at f7d18000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
00:1c.0 PCI bridge [0604]: Intel Corporation 7 Series/C216 Chipset Family PCI Express Root Port 1 [8086:1e10] (rev c4) (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
Interrupt: pin A routed to IRQ 16
Bus: primary=00, secondary=01, subordinate=01, 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
Kernel modules: shpchp
00:1c.1 PCI bridge [0604]: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 [8086:1e12] (rev c4) (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
Interrupt: pin B routed to IRQ 17
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
Memory behind bridge: f7c00000-f7cfffff
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
Kernel modules: shpchp
00:1d.0 USB controller [0c03]: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #1 [8086:1e26] (rev 04) (prog-if 20 [EHCI])
Subsystem: ASUSTeK Computer Inc. Zenbook Prime UX31A [1043:1517]
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 f7d1f000 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci-pci
Kernel modules: ehci_pci
00:1f.0 ISA bridge [0601]: Intel Corporation HM76 Express Chipset LPC Controller [8086:1e59] (rev 04)
Subsystem: ASUSTeK Computer Inc. Zenbook Prime UX31A [1043:1517]
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>
Kernel driver in use: lpc_ich
Kernel modules: lpc_ich
00:1f.2 SATA controller [0106]: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] [8086:1e03] (rev 04) (prog-if 01 [AHCI 1.0])
Subsystem: ASUSTeK Computer Inc. Zenbook Prime UX31A [1043:1517]
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 27
Region 0: I/O ports at f0b0 [size=8]
Region 1: I/O ports at f0a0 [size=4]
Region 2: I/O ports at f090 [size=8]
Region 3: I/O ports at f080 [size=4]
Region 4: I/O ports at f060 [size=32]
Region 5: Memory at f7d1e000 (32-bit, non-prefetchable) [size=2K]
Capabilities: <access denied>
Kernel driver in use: ahci
Kernel modules: ahci
00:1f.3 SMBus [0c05]: Intel Corporation 7 Series/C216 Chipset Family SMBus Controller [8086:1e22] (rev 04)
Subsystem: ASUSTeK Computer Inc. Zenbook Prime UX31A [1043:1517]
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 f7d1d000 (64-bit, non-prefetchable) [size=256]
Region 4: I/O ports at f040 [size=32]
Kernel driver in use: i801_smbus
Kernel modules: i2c_i801
00:1f.6 Signal processing controller [1180]: Intel Corporation 7 Series/C210 Series Chipset Family Thermal Management Controller [8086:1e24] (rev 04)
Subsystem: ASUSTeK Computer Inc. Zenbook Prime UX31A [1043:1517]
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 C routed to IRQ 10
Region 0: Memory at f7d1c000 (64-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
02:00.0 Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b1] (rev 4b)
Subsystem: Intel Corporation Dual Band Wireless-AC 7260 [8086:4070]
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 29
Region 0: Memory at f7c00000 (64-bit, non-prefetchable) [size=8K]
Capabilities: <access denied>
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
** USB devices:
Bus 004 Device 004: ID 8087:07dc Intel Corp.
Bus 004 Device 003: ID 04f2:b330 Chicony Electronics Co., Ltd Asus 720p CMOS webcam
Bus 004 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0bda:0139 Realtek Semiconductor Corp. RTS5139 Card Reader Controller
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 002: ID 1e54:2030 TypeMatrix 2030 USB Keyboard
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
- -- System Information:
Debian Release: buster/sid
APT prefers testing
APT policy: (990, 'testing'), (500, 'stable'), (50, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.15.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.utf8, LC_CTYPE=fr_FR.utf8 (charmap=UTF-8), LANGUAGE=fr_FR.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages linux-image-4.15.0-1-amd64 depends on:
ii initramfs-tools [linux-initramfs-tool] 0.130
ii kmod 25-1
ii linux-base 4.5
Versions of packages linux-image-4.15.0-1-amd64 recommends:
ii apparmor 2.12-2
pn firmware-linux-free <none>
pn irqbalance <none>
Versions of packages linux-image-4.15.0-1-amd64 suggests:
pn debian-kernel-handbook <none>
ii grub-pc 2.02+dfsg1-1
pn linux-doc-4.15 <none>
Versions of packages linux-image-4.15.0-1-amd64 is related to:
pn firmware-amd-graphics <none>
pn firmware-atheros <none>
pn firmware-bnx2 <none>
pn firmware-bnx2x <none>
pn firmware-brcm80211 <none>
pn firmware-cavium <none>
pn firmware-intel-sound <none>
pn firmware-intelwimax <none>
pn firmware-ipw2x00 <none>
pn firmware-ivtv <none>
ii firmware-iwlwifi 20170823-1
pn firmware-libertas <none>
pn firmware-linux-nonfree <none>
pn firmware-misc-nonfree <none>
pn firmware-myricom <none>
pn firmware-netxen <none>
pn firmware-qlogic <none>
pn firmware-realtek <none>
pn firmware-samsung <none>
pn firmware-siano <none>
pn firmware-ti-connectivity <none>
pn xen-hypervisor <none>
- -- no debconf information
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