[Bug 652934] [NEW] [RV515] Guest session causes screen to flicker violently and session is unusable

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Binary package hint: xserver-xorg-video-ati

This has been happening in this system ever since the drm changes landed
in the lucid kernel. it seems to be related to new_pll .

Initially the problem with the guest session would occur if i start it immediately itself.
But when i used new_pll=0 , it just causes the problem to occur hours later.

Problem also exists with the latest maverick kernel from leann's ppa
~$ uname -a
Linux Aspire-5670 2.6.35-23-generic #34~pre201009220900-Ubuntu SMP Wed Sep 22 23:22:58 UTC 2010 i686 GNU/Linux
Which is supposed to have a solution for this problem : <http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0d9958b18e10d7426d94cc3dd024920a40db3ee2> 

Because of this problem i had been using the mainline kernel for a very long time[.33, .34 and .35], but i have never had this problem with the mainline kernels. 
Only with the Ubuntu stock kernel i get this issue.

Attaching a video clip of the error

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: xserver-xorg-video-ati 1:6.13.1-1ubuntu5
ProcVersionSignature: Ubuntu 2.6.35-23.34~pre201009220900-generic 2.6.35.5
Uname: Linux 2.6.35-23-generic i686
Architecture: i386
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1280x800 1280x720 1152x768 1024x768 800x600 848x480 720x480 640x480
 edid-base64: AP///////wBEk0EAAAAAAAAPAQOAIRV4Ck3Ak1xRiCchUFQAAAABAQEBAQEBAQEBAQEBAQEB6hoAgFAgEDAVIEQAS88QAAAYAAAADwAIACoAAQAEADJKBBkBAAAA/gBRVUFOVEFESVNQTEFZAAAA/gBRRDE1VEwwNzIKICAgAIk=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: On
 modes: 
 edid-base64:
Date: Fri Oct  1 16:43:31 2010
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Alpha i386 (20100924)
MachineType: Acer, inc. Aspire 5670
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-23-generic root=UUID=d0b3b834-dc68-4ad5-95e1-afefebd792ea ro quiet splash
ProcEnviron:
 LANG=en_IN
 SHELL=/bin/bash
SourcePackage: xserver-xorg-video-ati
dmi.bios.date: 01/12/07
dmi.bios.vendor: Acer
dmi.bios.version: v1.3239
dmi.board.name: Bodensee
dmi.board.vendor: Acer, Inc.
dmi.board.version: Not Applicable
dmi.chassis.type: 1
dmi.chassis.vendor: Acer, Inc.
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAcer:bvrv1.3239:bd01/12/07:svnAcer,inc.:pnAspire5670:pvrNotApplicable:rvnAcer,Inc.:rnBodensee:rvrNotApplicable:cvnAcer,Inc.:ct1:cvrN/A:
dmi.product.name: Aspire 5670
dmi.product.version: Not Applicable
dmi.sys.vendor: Acer, inc.
system:
 distro:             Ubuntu
 codename:           maverick
 architecture:       i686
 kernel:             2.6.35-23-generic

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


** Tags: apport-bug i386 maverick
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[RV515] Guest session causes screen to flicker violently and session is unusable
https://bugs.edge.launchpad.net/bugs/652934
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