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On 2011-08-08T23:56:54+00:00 Cand-3 wrote:

Created attachment 50058
lspci -vvnn

My E-350 laptop screen flickers for ~5 minutes every time after waking
from DPMS. The flicker persists through VT switches and changing the
power profile to high.

After the wait it stabilizes and picture is good again.

It looks similar to a CRT on 60Hz, but xrandr is confident the mode is
right for the lcd (60hz, not something lower).


Lenovo G575 laptop
AMD E-350
Linux 3.0.1

Reply at: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
ati/+bug/858450/comments/0

------------------------------------------------------------------------
On 2011-08-09T00:07:30+00:00 Cand-3 wrote:

Created attachment 50060
dmesg

Reply at: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
ati/+bug/858450/comments/1

------------------------------------------------------------------------
On 2011-08-09T00:08:56+00:00 Cand-3 wrote:

Now that I tried to make it happen manually (sleep 1 && xset dpms force
off), it didn't show itself; though for the last few days, it's always
happened after X's 10-minute delay DPMS.

Reply at: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
ati/+bug/858450/comments/2

------------------------------------------------------------------------
On 2011-10-04T01:05:19+00:00 Simon Strandman wrote:

I have this problem too on similar E350-based hardware.

Sometimes I get this flicker, sometimes the screen is garbled (bug
#36513). When I get a garbled screen the flicker usually persists even
after a reboot. (Though this never happens in windows so I don't think
it's a hardware issue.)

Reply at: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
ati/+bug/858450/comments/6

------------------------------------------------------------------------
On 2011-10-15T20:03:41+00:00 Marc Deslauriers wrote:

I am getting this on a C-50 based Acer Aspire One 522.
I can reliably reproduce the issue with:

xset dpms force off; sleep 10; xset dpms force on

Reply at: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
ati/+bug/858450/comments/7

------------------------------------------------------------------------
On 2019-11-19T08:20:21+00:00 Martin-peres-n wrote:

-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has
been closed from further activity.

You can subscribe and participate further through the new bug through
this link to our GitLab instance:
https://gitlab.freedesktop.org/drm/amd/issues/208.

Reply at: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
ati/+bug/858450/comments/12


** Changed in: xserver-xorg-driver-ati
       Status: Confirmed => Unknown

** Bug watch added: gitlab.freedesktop.org/drm/amd/issues #208
   https://gitlab.freedesktop.org/drm/amd/issues/208

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xserver-xorg-video-ati in Ubuntu.
https://bugs.launchpad.net/bugs/858450

Title:
  lcd flickers after dpms cycle

Status in xserver-xorg-driver-ati:
  Unknown
Status in xserver-xorg-video-ati package in Ubuntu:
  Fix Released

Bug description:
  After installing Oneiric beta 2 on a Acer Aspire One 522 with an AMD
  C-50 chipset, when the screen is shut off with dpms and comes back on,
  the LCD flickers. The longer the screen is turned off, the more severe
  the flickering is when it is turned back on. When the flickering
  occurs, waiting a couple of minutes makes the flicker grow
  progressively better until it is gone completely.

  How to reproduce:
  xset dpms force off; sleep 10; xset dpms force on

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1
  ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
  Uname: Linux 3.0.0-11-generic x86_64
  NonfreeKernelModules: wl
  .tmp.unity.support.test.0:
   
  ApportVersion: 1.23-0ubuntu1
  Architecture: amd64
  CompizPlugins: 
[core,bailer,detection,composite,opengl,decor,resize,compiztoolbox,move,regex,place,animation,mousepoll,imgpng,expo,gnomecompat,snap,wall,vpswitch,grid,session,ezoom,fade,workarounds,unitymtgrabhandles,scale,unityshell]
  CompositorRunning: compiz
  Date: Sat Sep 24 15:24:04 2011
  DistUpgraded: Fresh install
  DistroCodename: oneiric
  DistroVariant: ubuntu
  DkmsStatus: bcmwl, 5.100.82.38+bdcom, 3.0.0-11-generic, x86_64: installed
  EcryptfsInUse: Yes
  ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu
  GraphicsCard:
   ATI Technologies Inc Device [1002:9804] (prog-if 00 [VGA controller])
     Subsystem: Acer Incorporated [ALI] Device [1025:0543]
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110921.2)
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 002 Device 002: ID 0402:9665 ALi Corp.
  MachineType: Acer Aspire One 522
  ProcEnviron:
   LANGUAGE=en_CA:en
   PATH=(custom, no user)
   LANG=en_CA.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-11-generic 
root=UUID=afbb5dd5-d2b3-4fec-b443-89246687d17d ro quiet splash vt.handoff=7
  SourcePackage: xserver-xorg-video-ati
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/08/2011
  dmi.bios.vendor: Acer
  dmi.bios.version: V1.12
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: JE10-BZ
  dmi.board.vendor: Acer
  dmi.board.version: Base Board Version
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V1.12
  dmi.modalias: 
dmi:bvnAcer:bvrV1.12:bd06/08/2011:svnAcer:pnAspireOne522:pvrV1.12:rvnAcer:rnJE10-BZ:rvrBaseBoardVersion:cvnAcer:ct10:cvrV1.12:
  dmi.product.name: Aspire One 522
  dmi.product.version: V1.12
  dmi.sys.vendor: Acer
  version.compiz: compiz 1:0.9.5.94+bzr2803-0ubuntu5
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.26-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
  version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 
1:6.14.99~git20110811.g93fc084-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:0.0.16+git20110411+8378443-1

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