ubuntu-x-swat team mailing list archive

[Stefan Nagy <public@xxxxxxxxxxxxxx>]

Public bug reported:

This is a regression, since in Ubuntu 10.10 (maverick) – apart from a
minor bug (see bug #539163) – I have no issues with my graphics hardware
and the performance is just incredible. In Ubuntu 11.04 (natty) I'm
affected by heavy graphics corruptions in Gnome & in addition RAM- and
Swap-usage are far from normal. Since my hardware doesn't support OpenGL
1.4 I'm not using Unity but the standard Gnome desktop.

1. Graphics corruptions
1.1. with Compiz
When I use Compiz, after several minutes I see some minor corruptions in the Gnome panel; normally in the beginning only one applet is affected (I'll attach a screenshot) but after some time one applet after another gets corrupted.
1.2. with Metacity
When I use Metacity there's one corruption I can always reproduce by opening Synaptic – when the password is requested, the background should be darkened. Instead I see all kinds of corruptions. There are also other, less predictable, corruptions. If it helps something I could add screenshots.

2. RAM- and Swap-usage
After one or two hours of work RAM-usage reaches around 40% (of 2GB) and from this point on Swap (4 GB) gets filled up until it reaches 100% and the system is unusable. When I use the same applications in Ubuntu 10.10 (maverick) around 30% of my RAM are in use and swap-usage stays under 10%. This applies to Compiz – if it helps I can test RAM- and Swap-usage with Metacity aswell.

Workarounds
I. radeon-option "RenderAccel" "off"
This option reduces not just the performance but also the problems mentioned above (but they are still present).
II. Forcing the card into PCI mode
This seems to solve the mentioned problems – at the expense of horrible graphics performance.
III. radeon-option "EXAPixmaps" "off"
This option seems as the best workaround for me. The symptoms are still present to a extenuated extent but performance is better than with workaround I & II.

My graphics hardware:
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Radeon RV250 [Mobility FireGL 9000] [1002:4c66] (rev 01) (prog-if 00 [VGA controller])

Kernel 2.6.38-11-generic
xorg 1:7.6+4ubuntu3.1
xserver-xorg-video-radeon 1:6.14.0-0ubuntu4.1

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: xserver-xorg-video-radeon 1:6.14.0-0ubuntu4.1
ProcVersionSignature: Ubuntu 2.6.38-11.50-generic 2.6.38.8
Uname: Linux 2.6.38-11-generic i686
Architecture: i386
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
Date: Tue Sep 27 13:16:19 2011
DistUpgraded: Fresh install
DistroCodename: natty
DistroVariant: ubuntu
GraphicsCard:
 ATI Technologies Inc Radeon RV250 [Mobility FireGL 9000] [1002:4c66] (rev 01) (prog-if 00 [VGA controller])
   Subsystem: Compaq Computer Corporation Device [0e11:0860]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
MachineType: Hewlett-Packard Compaq nx7010 (PG588ET#UUZ)
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcEnviron:
 LANGUAGE=de_AT:en
 LANG=de_AT.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-2.6.38-11-generic root=/dev/mapper/ubuntu-root ro quiet splash vt.handoff=7
Renderer: Unknown
SourcePackage: xserver-xorg-video-ati
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/14/2005
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68BAL Ver. F.55
dmi.board.name: 0860
dmi.board.vendor: COMPAL
dmi.board.version: 8051 Version 24.56
dmi.chassis.type: 10
dmi.chassis.vendor: COMPAL
dmi.chassis.version: NULL
dmi.modalias: dmi:bvnHewlett-Packard:bvr68BALVer.F.55:bd07/14/2005:svnHewlett-Packard:pnCompaqnx7010(PG588ET#UUZ):pvrF.55:rvnCOMPAL:rn0860:rvr8051Version24.56:cvnCOMPAL:ct10:cvrNULL:
dmi.product.name: Compaq nx7010 (PG588ET#UUZ)
dmi.product.version: F.55
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.4+bzr20110606-0ubuntu1~natty2
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+4ubuntu3.1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4.1
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

** Affects: xserver-xorg-driver-ati
     Importance: Unknown
         Status: Unknown

** Affects: xserver-xorg-video-ati (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug compiz-0.9 i386 natty regression-release ubuntu

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https://bugs.launchpad.net/bugs/860509

Title:
  [RV250] Regression: Screen corruptions on X + massive RAM- & Swap-
  usage

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