Ubuntu
linux package

8086:2a42 (Needs i915.powersave quirk) [gm45] flicker on bottom third of screen

Bug #549989 reported by pi-rho on 2010-03-28

This bug report is a duplicate of: Bug #538648: 8086:2a42 [Intel GM45] Irregular sync flashes (Needs i915.powersave quirk). Edit Remove

This bug affects 7 people

Affects		Status	Importance	Assigned to	Milestone
	linux (Ubuntu)	Confirmed	Medium	Unassigned
	Lucid	Confirmed	Medium	Unassigned

Bug Description

Binary package hint: xserver-xorg-video-intel

I've tried with and without compiz and docky. Screen does not flicker outside of Xorg and not in Karmic livecd. sudo lshw -c video corrupts the display every time.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: xserver-xorg-video-intel 2:2.9.1-1ubuntu17
ProcVersionSignature: Ubuntu 2.6.32-17.26-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-17-generic x86_64
Architecture: amd64
CheckboxSubmission: 036ebae473b9f41a3d28bcdb84994cf2
CheckboxSystem: b8f3ec504801f13fc208edb5c785b099
Date: Sat Mar 27 20:18:48 2010
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Alpha amd64 (20091007)
MachineType: ASUSTeK Computer Inc. UL30A
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-17-generic root=UUID=0363152f-7188-4505-8c6f-a90e5236f296 ro quiet splash printk.tiusername=0 gfxpayload=1024x768 i8042.nomux=1 i8042.noloop=1
ProcEnviron:
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: xserver-xorg-video-intel
dmi.bios.date: 08/20/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 206
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: UL30A
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: 1.0
dmi.chassis.asset.tag: ATN12345678901234567
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer Inc.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr206:bd08/20/2009:svnASUSTeKComputerInc.:pnUL30A:pvr1.0:rvnASUSTeKComputerInc.:rnUL30A:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
dmi.product.name: UL30A
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer Inc.
system:
distro: Ubuntu
codename: lucid
architecture: x86_64
kernel: 2.6.32-17-generic

[lspci]
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07)
Subsystem: ASUSTeK Computer Inc. Device [1043:1862]

See original description

Tags:

Revision history for this message

pi-rho (pi-rho) wrote on 2010-03-28:

BootDmesg.txt Edit (37.7 KiB, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (8.7 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (2.1 KiB, text/plain; charset="utf-8")
DkmsStatus.txt Edit (967 bytes, text/plain; charset="utf-8")
GdmLog.txt Edit (24.5 KiB, text/plain; charset="utf-8")
GdmLog1.txt Edit (24.8 KiB, text/plain; charset="utf-8")
GdmLog2.txt Edit (24.6 KiB, text/plain; charset="utf-8")
Lspci.txt Edit (11.7 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (566 bytes, text/plain; charset="utf-8")
PciDisplay.txt Edit (1.2 KiB, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (1.5 KiB, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (1.6 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (4.2 KiB, text/plain; charset="utf-8")
RelatedPackageVersions.txt Edit (182 bytes, text/plain; charset="utf-8")
UdevDb.txt Edit (117.6 KiB, text/plain; charset="utf-8")
UdevLog.txt Edit (249.7 KiB, text/plain; charset="utf-8")
XorgConf.txt Edit (2.9 KiB, text/plain; charset="utf-8")
XorgLog.txt Edit (27.5 KiB, text/plain; charset="utf-8")
XorgLogOld.txt Edit (28.2 KiB, text/plain; charset="utf-8")
Xrandr.txt Edit (5.7 KiB, text/plain; charset="utf-8")
glxinfo.txt Edit (16.9 KiB, text/plain; charset="utf-8")
monitors.xml.txt Edit (681 bytes, text/plain; charset="utf-8")
setxkbmap.txt Edit (233 bytes, text/plain; charset="utf-8")
xdpyinfo.txt Edit (19.2 KiB, text/plain; charset="utf-8")
xkbcomp.txt Edit (54.0 KiB, text/plain; charset="utf-8")

Revision history for this message

Robert Hooker (sarvatt) wrote on 2010-03-28:

Does it only happen when you are using gnome-terminal? The lshw problem is known and the fix has been commited, it was caused by vga16fb.

Changed in xserver-xorg-video-intel (Ubuntu):
status:	New → Incomplete

Revision history for this message

pi-rho (pi-rho) wrote on 2010-03-28:

I closed out of all gnome-terminals and killed guake. The intermittent flickering did not cease.

lshw:

$ dpkg-query -l lshw
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Description
+++-===========================-===========================-======================================================================
ii lshw 02.14-1build1 information about hardware configuration

$ sudo lshw -c video
  *-display:0
       description: VGA compatible controller
       product: Mobile 4 Series Chipset Integrated Graphics Controller
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 07
       width: 64 bits
       clock: 33MHz
       capabilities: msi pm bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:28 memory:fe400000-fe7fffff memory:d0000000-dfffffff(prefetchable) ioport:dc00(size=8)
  *-display:1 UNCLAIMED
       description: Display controller
       product: Mobile 4 Series Chipset Integrated Graphics Controller
       vendor: Intel Corporation
       physical id: 2.1
       bus info: pci@0000:00:02.1
       version: 07
       width: 64 bits
       clock: 33MHz
       capabilities: pm bus_master cap_list
       configuration: latency=0
       resources: memory:fe800000-fe8fffff

... Confirmed fix on lshw -c video

Revision history for this message

pi-rho (pi-rho) wrote on 2010-03-28:

Additional Info: After thinking about it more, I started xterm and killed off gnome-pty-helper thinking that it may be part of the problem. The intermittent flicker remains.

pi-rho (pi-rho) on 2010-03-28

Changed in xserver-xorg-video-intel (Ubuntu):
status:	Incomplete → New

Bryce Harrington (bryce) on 2010-03-29

tags:

added: flicker

Revision history for this message

pi-rho (pi-rho) wrote on 2010-04-03:

removed duplicate, since #534894 is on different hardware

Bryce Harrington (bryce) on 2010-04-03

Changed in xserver-xorg-video-intel (Ubuntu):
status:	New → Confirmed

Bryce Harrington (bryce) on 2010-04-06

description:

updated

Bryce Harrington (bryce) on 2010-04-06

Changed in xserver-xorg-video-intel (Ubuntu Lucid):
assignee:	nobody → Chris Halse Rogers (raof)

Revision history for this message

Adam Olsen (arolsen) wrote on 2010-04-07:

I am also seeing this problem after upgrading to the 10.04 beta on my Thinkpad x200s with an intel GM45 card.

Installing cpuburn and running burnP6 (from a terminal or ALT+F2 run dialog) causes it to happen more often. Just a quick flickering on the bottom half of the screen. This happens whether or not I'm running any gnome-terminals.

Revision history for this message

Robert Hooker (sarvatt) wrote on 2010-04-07:

pi-rho: Can you please try booting with i915.powersave=0 to see if it fixes the issue? If that does not work, can you boot with drm.debug=0x04 added to grub and attach the dmesg output? Also, does this only happen at low brightness levels or does it also happen with the screen brightness at max as well?

Changed in xserver-xorg-video-intel (Ubuntu Lucid):
status:	Confirmed → Incomplete
importance:	Undecided → Medium

Revision history for this message

Chris Halse Rogers (raof) wrote on 2010-04-07: Re: [Bug 549989] Re: [gm45] flicker on bottom third of screen

I also have an x200s, with a GM45 (PCIID 8086:2a43, subsystem vendor
17aa:20e6), and I can't seem to reproduce this bug. How often is the
flickering occurring?

Revision history for this message

pi-rho (pi-rho) wrote on 2010-04-08: Re: [gm45] flicker on bottom third of screen

dmesg-2010-03-07.txt Edit (66.8 KiB, text/plain)

@Robert:

i915.powersave=0 looks like it did the trick. Thanks! I'm attaching a full dmesg grepped for "drm"
The flickering happens at max brightness and at lower brightness settings.

@Chris:

Flickering was totally random, but it seemed to slightly increase in frequency when there was more load on the system. That increase could have been totally subjective though.

Revision history for this message

pi-rho (pi-rho) wrote on 2010-04-08:

#10

dmesg-drm-2010-03-07.txt Edit (29.2 KiB, text/plain)

Here is the dmesg output grepped for "drm" for convenience...

Changed in xserver-xorg-video-intel (Ubuntu Lucid):
status:	Incomplete → Confirmed

Revision history for this message

Chris Halse Rogers (raof) wrote on 2010-04-08:

#11

This looks like a candidate for powersave quirking then.
@Adam: It would be good to know if i915.powersave=0 works for you as well.

affects:	xserver-xorg-video-intel (Ubuntu Lucid) → linux (Ubuntu Lucid)
summary:	- [gm45] flicker on bottom third of screen + (Needs i915.powersave quirk) [gm45] flicker on bottom third of screen
Changed in linux (Ubuntu Lucid):
assignee:	Chris Halse Rogers (raof) → nobody

Eric Germán Burgueño (nevermind85) on 2010-05-01

tags:

added: i386 i915 intel

penalvch (penalvch) on 2013-09-28

summary:

- (Needs i915.powersave quirk) [gm45] flicker on bottom third of screen
+ 8086:2a42 (Needs i915.powersave quirk) [gm45] flicker on bottom third of
+ screen

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8086:2a42 (Needs i915.powersave quirk) [gm45] flicker on bottom third of screen

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