ubuntu-x-swat team mailing list archive

[David Coles <coles.david@xxxxxxxxx>]

Public bug reported:

Binary package hint: xserver-xorg-video-nouveau

Certain graphical operations with the nouveau driver cause the display
to lock up for several seconds. In particular, what looks like
compositing operations.

The most easily reproducible form for me seems to be with Chromium's
tabs. When you try and drag a tab out to a new window it should show a
preview of the tab. Very soon after the tab is removed from the tab bar
the display will lock up for about 6 seconds before the translucent tab
image will appear. It will then take about another 6 seconds before the
the display will function normally. After this there seems to be no
performance issue - it's just when first showing the tab preview.

The mouse cursor is still able to move during this time.

I believe that this might also happen when using the translucent on-
screen volume control that appears when you use a keyboard volume
control. After the first time this occurs, the volume control functions
normally.

Alt+Tab will cause the display to lock up for ~1-2 seconds before the
tab-window previews appear.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: xorg 1:7.5+3ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-19-generic x86_64
NonfreeKernelModules: openafs
Architecture: amd64
Date: Sun Apr  4 00:17:05 2010
DkmsStatus:
 openafs, 1.4.11, 2.6.32-15-generic, x86_64: installed 
 openafs, 1.4.11, 2.6.32-16-generic, x86_64: installed 
 openafs, 1.4.11, 2.6.32-19-generic, x86_64: installed 
 openafs, 1.4.11, 2.6.32-18-generic, x86_64: installed
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
MachineType: Dell Inc. XPS M1530
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-19-generic root=UUID=48c0c433-204c-42c9-ac06-1d16a40a7e4b ro quiet splash blacklist=vga16fb
ProcEnviron:
 PATH=(custom, user)
 LANG=en_AU.utf8
 SHELL=/bin/bash
SourcePackage: xorg
Symptom: display
dmi.bios.date: 11/19/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A12
dmi.board.name: 0D501F
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA12:bd11/19/2008:svnDellInc.:pnXPSM1530:pvr:rvnDellInc.:rn0D501F:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: XPS M1530
dmi.sys.vendor: Dell Inc.
system:
 distro:             Ubuntu
 codename:           lucid
 architecture:       x86_64
 kernel:             2.6.32-19-generic

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


** Tags: amd64 apport-bug lucid performance

-- 
nouveau driver locks up screen on certain operations
https://bugs.launchpad.net/bugs/554611
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