Ubuntu
linux package

subtle graphics corruption after resume on sandybridge laptop

Bug #790015 reported by Sage Weil on 2011-05-29

This bug affects 2 people

Affects		Status	Importance	Assigned to	Milestone
	xf86-video-intel	Fix Released	Critical	freedesktop-bugs #33487
	linux (Ubuntu)	Fix Released	Low	Unassigned

Bug Description

Binary package hint: xorg

The laptop is a samsung np900x3a. After a suspend/resume, everything looks mostly fine, except:
- typing in a terminal is mostly invisible, until several lines go by and the text becomes visible.
- flipping to a different desktop and back makes the text appear
- the problem goes away if I log out/in of the x session
I'd attach a picture, but it wouldn't show anything useful except the unchanged screen (despite me typing) or the newly visible text (once it finally redraws).
Nothing suspicious in dmesg or Xorg.0.log that i can see...

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: xorg 1:7.6+4ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
DRM.card0.DP.1:
status: disconnected
enabled: disabled
dpms: Off
modes:
edid-base64:
DRM.card0.HDMI.A.1:
status: disconnected
enabled: disabled
dpms: Off
modes:
edid-base64:
DRM.card0.LVDS.1:
status: connected
enabled: enabled
dpms: On
modes: 1366x768
edid-base64: AP///////wBMo0YzAAAAAAAVAQOAHRB4Cof1lFdPjCcnUFQAAAABAQEBAQEBAQEBAQEBAQEBnhtWeFAAGDAwICUAJaUQAAAZAAAADwAAAAAAAAAAAB60AnQAAAAA/gBTQU1TVU5HCiAgICAgAAAA/gBMU04xMzNBVDAxODAxAF0=
DRM.card0.VGA.1:
status: disconnected
enabled: disabled
dpms: Off
modes:
edid-base64:
Date: Sun May 29 15:51:29 2011
DistUpgraded: Fresh install
DistroCodename: natty
DistroVariant: ubuntu
GraphicsCard:
Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
Subsystem: Samsung Electronics Co Ltd Device [144d:c098]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
MachineType: SAMSUNG ELECTRONICS CO., LTD. 90X3A
ProcEnviron:
LANGUAGE=en_US:en
PATH=(custom, user)
LANG=C
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=5dbc24ee-272a-41ef-9846-c10799e58402 ro quiet splash vt.handoff=7
Renderer: Unknown
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/08/2011
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: 04HL
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 90X3A
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: FAB1
dmi.chassis.asset.tag: Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: 0.1
dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr04HL:bd03/08/2011:svnSAMSUNGELECTRONICSCO.,LTD.:pn90X3A:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rn90X3A:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
dmi.product.name: 90X3A
dmi.product.version: 0.1
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
version.compiz: compiz 1:0.9.4+bzr20110415-0ubuntu2
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7

See original description

Tags:

Revision history for this message

Sage Weil (sage-newdream) wrote on 2011-05-29:

BootDmesg.txt Edit (52.0 KiB, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (8.6 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (5.6 KiB, text/plain; charset="utf-8")
DpkgLog.txt Edit (1.2 MiB, text/plain; charset="utf-8")
GconfCompiz.txt Edit (36.5 KiB, text/plain; charset="utf-8")
GdmLog.txt Edit (19.4 KiB, text/plain; charset="utf-8")
GdmLog1.txt Edit (18.4 KiB, text/plain; charset="utf-8")
GdmLog2.txt Edit (21.2 KiB, text/plain; charset="utf-8")
Lspci.txt Edit (9.5 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (420 bytes, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (3.4 KiB, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (2.2 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (2.8 KiB, text/plain; charset="utf-8")
UdevDb.txt Edit (102.3 KiB, text/plain; charset="utf-8")
UdevLog.txt Edit (260.7 KiB, text/plain; charset="utf-8")
UnitySupportTest.txt Edit (626 bytes, text/plain; charset="utf-8")
XorgLog.txt Edit (29.0 KiB, text/plain; charset="utf-8")
XorgLogOld.txt Edit (28.4 KiB, text/plain; charset="utf-8")
Xrandr.txt Edit (3.2 KiB, text/plain; charset="utf-8")
locale.txt Edit (215 bytes, text/plain; charset="utf-8")
peripherals.txt Edit (1.4 KiB, text/plain; charset="utf-8")
setxkbmap.txt Edit (233 bytes, text/plain; charset="utf-8")
xdpyinfo.txt Edit (9.8 KiB, text/plain; charset="utf-8")
xinput.txt Edit (834 bytes, text/plain; charset="utf-8")
xkbcomp.txt Edit (54.8 KiB, text/plain; charset="utf-8")

Revision history for this message

Sage Weil (sage-newdream) wrote on 2011-05-29:

newdmesg.txt Edit (76.8 KiB, text/plain)

Here is dmesg _after_ a resume while the display is still behaving poorly

Revision history for this message

Sage Weil (sage-newdream) wrote on 2011-05-29:

Xorg.0.log Edit (29.8 KiB, text/plain)

Here's xorg.0.log while it's misbehaving

description:

updated

bugbot (bugbot) on 2011-05-30

affects:

xorg (Ubuntu) → xserver-xorg-video-intel (Ubuntu)

Revision history for this message

Sage Weil (sage-newdream) wrote on 2011-06-02:

I think this is the upstream bug:

https://bugs.freedesktop.org/show_bug.cgi?id=33487

bugbot (bugbot) on 2011-06-05

tags:

added: resume

Bug Watch Updater (bug-watch-updater) on 2011-07-20

Changed in xserver-xorg-video-intel:
importance:	Unknown → Critical
status:	Unknown → Confirmed

Bug Watch Updater (bug-watch-updater) on 2011-08-02

Changed in xserver-xorg-video-intel:
status:	Confirmed → Fix Released

Revision history for this message

Chris Halse Rogers (raof) wrote on 2011-08-14:

Do you still see this problem? FBC is now turned off by default, so this should no longer occur.

There are two upstream commits in 3.1-rc1 that are reported to fix the cause. Handing off to the kernel team. These patches are low priority, though - our default setup shouldn't hit this bug now.

commit 7782de3bd671657674e7baba854f0fd43e9f86bc
Author: Chris Wilson <email address hidden>
Date: Fri Jul 8 12:22:41 2011 +0100

drm/i915: Disable FBC across page-flipping

commit 9ce9d0695d15da23ffe817516ba5d0b58caf8d05
Author: Chris Wilson <email address hidden>
Date: Fri Jul 8 12:22:40 2011 +0100

drm/i915: Set persistent-mode for ILK/SNB framebuffer compression

affects:	xserver-xorg-video-intel (Ubuntu) → linux (Ubuntu)
Changed in linux (Ubuntu):
importance:	Undecided → Low
status:	New → Incomplete
tags:	added: kernel-handoff-graphics

Revision history for this message

Sage Weil (sage-newdream) wrote on 2011-09-01:

I'm running 3.0 + the patch below without problems. Not sure which upstream commit that was! Sorry, I havent have time to play with it once i got things working. :)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 0f1c799..4ed1ca5 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -1606,6 +1606,8 @@ static void ironlake_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
                I915_WRITE(SNB_DPFC_CTL_SA,
                           SNB_CPU_FENCE_ENABLE | dev_priv->cfb_fence);
                I915_WRITE(DPFC_CPU_FENCE_OFFSET, crtc->y);
+ /* Set persistent mode */
+ I915_WRITE(ILK_DPFC_CONTROL, 1 << 25);
                sandybridge_blit_fbc_update(dev);
        }

Revision history for this message

Philip Cox (philcox) wrote on 2024-12-16:

It looks like this has been fixed. I will close it. If the problem still occurs, please reopen it.

Changed in linux (Ubuntu):
status:	Incomplete → Fix Released

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subtle graphics corruption after resume on sandybridge laptop

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