Sounds like a kernel problem. Suspend/resume is handled in the kernel,
and restarting X does not fix the problem. Moving to kernel.
Does this problem still occur on Ubuntu 12.04.1 "Precise Pangolin"?
What about on Ubuntu 12.10 "Qantal Quetzal" beta 2?
** Package changed: xserver-xorg-video-ati (Ubuntu) => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/584714
Title:
Radeon 2600XT poor performance after suspend-to-ram
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
Binary package hint: xorg
Up-to-date 10.04. Fresh Install.
ATI Radeon 2600XT. Open-source driver. Kernel modesetting enabled
(assumed from the 1440x900 plymouth resolution)
This is an r600 card, so lucid is the first release with open-source
3D. While the performance isn't great at the best of times, it is
quite usable even under Extra Effects.
However, occasionally after suspend-to-ram/resume, performance becomes
terrible (although still barely usable - typing this bug in the bad
state). Moving windows causes tearing, even typing occasionally locks
up for a few seconds. Opening menus is painful.
Potentially useful things I have noticed:
- Enabling/Disabling "Special Effects" has no effect on the problem.
- GLXGears prints a normal fps value when in the bad state, and it's
rendering is fine as well.
- Each 'action' only hiccups once: start typing and it will lock for a few
seconds, catch up, and be fine. However, if your typing cursor leaves that text
field and reenters it, the hiccup will happen again.
- During each hiccup, X uses 80+ percent of CPU.
- I've found no correlation between the occurrence of this problem and:
- - applications open during the suspend
- - time between suspend and resume
- - peripheral devices plugged in during suspend/resume
- I have never noticed this issue on a fresh boot.
- Once this issue occurs, restarting X (Alt-SysRq-K) does not fix it. X
restarts fine, but the poor performance remains.
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: xorg 1:7.5+5ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic x86_64
Architecture: amd64
Date: Sun May 23 15:46:23 2010
DkmsStatus:
virtualbox-ose, 3.1.6, 2.6.32-21-generic, x86_64: installed
virtualbox-ose, 3.1.6, 2.6.32-22-generic, x86_64: installed
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
MachineType: Dell Inc. Inspiron 530
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-22-generic
root=UUID=b0927ca1-1703-4889-a481-a0edd0d19441 ro quiet splash
ProcEnviron:
LANG=en_CA.utf8
SHELL=/bin/bash
SourcePackage: xorg
dmi.bios.date: 06/20/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.0.15
dmi.board.name: 0FM586
dmi.board.vendor: Dell Inc.
dmi.board.version: ���
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: OEM
dmi.modalias:
dmi:bvnDellInc.:bvr1.0.15:bd06/20/2008:svnDellInc.:pnInspiron530:pvr:rvnDellInc.:rn0FM586:rvr:cvnDellInc.:ct3:cvrOEM:
dmi.product.name: Inspiron 530
dmi.sys.vendor: Dell Inc.
glxinfo: Error: [Errno 2] No such file or directory
system:
distro: Ubuntu
codename: lucid
architecture: x86_64
kernel: 2.6.32-22-generic
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