[Bug 568005] [NEW] Screen shows grey bars after resuming from suspend

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Public bug reported:

I have a Dell Latitude C400 laptop with Intel 82830M graphics hardware
running Lucid 10.04 beta , kernel 2.6.32-21-generic.

The laptop suspends, and on occasion resumes fine.  However, more often-
than-not, on resume the display will turn on (an improvement over
karmic) but will be corrupted.  Normally this takes the form of 3 or 4
wide horizontal grey bars and a sort of bleeding of white to grey across
the screen.  Occasionally there is one or more wide vertical bars,
looking a little like a grey-plaid pattern.

The laptop is fully responsive and working, and can be shut down or
suspended again (note, once the display corruption happens, it never
seems to work again until the system is rebooted.)  I can switch between
CTRL-ALT-F7 and CTRL-ALT-F1, but the only change in the display is that
on the graphical display the screen starts white and begins to bleed to
grey, while on the test screen starts grey and beings to bleed to black.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-21-generic 2.6.32-21.32
Regression: No
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: I82801CAICH3 [Intel 82801CA-ICH3], device 0: Intel ICH [Intel 82801CA-ICH3]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: i386
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  phil       1245 F.... knotify4
                      phil       1271 F.... kmix
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'I82801CAICH3'/'Intel 82801CA-ICH3 with CS4205 at irq 7'
   Mixer name	: 'Cirrus Logic CS4205 rev 3'
   Components	: 'AC97a:4352595b'
   Controls      : 42
   Simple ctrls  : 27
Date: Wed Apr 21 13:37:20 2010
HibernationDevice: RESUME=UUID=e0c38232-53a2-4ca5-9a76-2f11824d4ec1
Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: Dell Computer Corporation Latitude C400
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   3.3V 32-bit PC Card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-21-generic root=UUID=5ab83fd8-ac45-49fc-b541-6a05c9aabb98 ro quiet splash
ProcEnviron:
 LANGUAGE=
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34
RfKill:
 0: phy0: Wireless LAN
 	Soft blocked: no
 	Hard blocked: no
SourcePackage: linux
dmi.bios.date: 03/01/2004
dmi.bios.vendor: Dell Computer Corporation
dmi.bios.version: A12
dmi.board.name: Latitude C400
dmi.board.vendor: Dell Computer Corporation
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Computer Corporation
dmi.modalias: dmi:bvnDellComputerCorporation:bvrA12:bd03/01/2004:svnDellComputerCorporation:pnLatitudeC400:pvr:rvnDellComputerCorporation:rnLatitudeC400:rvr:cvnDellComputerCorporation:ct8:cvr:
dmi.product.name: Latitude C400
dmi.sys.vendor: Dell Computer Corporation

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug graphics i386 lucid needs-upstream-testing

-- 
Screen shows grey bars after resuming from suspend
https://bugs.launchpad.net/bugs/568005
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