A little more information in case it gives any clues:
As well as the 3 scenarios above (triggering under identical conditions as far
as I can see), there is a fourth after all:
d) As a) but the screen blanks. That is, there is a momentary pause, the
screen goes entirely black, but I am able
** Attachment added: drawing of what scrollbar looks like during freeze
http://launchpadlibrarian.net/52634073/Screenshot-scrollbar-reconstruction.png
--
X locks up when scrolling on Radeon Mobility M6 LY
https://bugs.launchpad.net/bugs/404331
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** Attachment added: corrupted screenshot, obtained by doing Alt+PrtSc and
saving blind
http://launchpadlibrarian.net/52634121/Screenshot-corrupted.png
--
X locks up when scrolling on Radeon Mobility M6 LY
https://bugs.launchpad.net/bugs/404331
You received this bug notification because you
Unfortunately, I think this was never resolved. On upgrading karmic to
lucid, the problem re-emerged, even though I was using the Option DRI
false workaround.
I've been suffering lockups/crashes at about the same frequency, every
2-3 hours say, for several months (except when I use Windows,
delayed reopening
** Changed in: xserver-xorg-video-ati (Ubuntu)
Status: Fix Released = New
--
X locks up when scrolling on Radeon Mobility M6 LY
https://bugs.launchpad.net/bugs/404331
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I think this is a duplicate of (parts 1 and 3 of) bug 421842 - your
notifications look just like the ones reported there, in Gnome and KDE.
What does System Monitor look like with effects off? Here's an example:
http://launchpadlibrarian.net/31041978/Screenshot-System%20Monitor-
tartan2.png
Quote
My problems 1-3 above still exist with
ubuntu-desktop/unknown uptodate 1.174
xserver-xorg-video-ati/unknown uptodate 1:6.12.99+git20090929.7968e1fb-0ubuntu1
xserver-xorg-video-radeon/unknown uptodate
1:6.12.99+git20090929.7968e1fb-0ubuntu1
(and also sometimes console switching with Ctrl+Alt+F1
It looks like 2 or 3 separate bugs all introduced into radeon_drv.so
since Jaunty. From latest karmic, if I do
sudo dpkg -i --force-downgrade xserver-xorg-video-
radeon_6.12.1-0ubuntu2_i386.deb
everything is fine. Compiz effects are a bit slow, but I don't get
segfaults or any screen
Can reproduce all these bugs on latest updates and alpha-5 live CD, but
not alpha-4. To reproduce 'tartan' effect with alpha-5, uninstall
compiz-gnome, logout, and run GNOME System Monitor (also seems to occur
when there is no window manager, so don't think it's a metacity
problem).
Compiz
I've also just reproduced this problem (Firefox scrolling) on fresh
Jaunty 9.04 live CD, using a 3COM wireless card rather than ndisgtk. I
think this means we can rule out anything to do with persistent
configuration errors or corrupted packages, or realplayer or ndiswrapper
(and probably nothing
Some more information from M6 LY world...
1) Starting from Karmic alpha-4 (LiveCD), which works, I can upgrade
xserver-xorg-video-radeon to the karmic repository version, and xserver-
xorg-core and all the -video packages, compiz, and hal/libhal, and
finally install libdrm-radeon1 to get DRI
** Attachment added: backtrace for two crashes (dri on, after resize)
http://launchpadlibrarian.net/31462051/gdb-Xorg27-karmic.txt
--
screen corruption and segfaults with radeon m6 ly
https://bugs.launchpad.net/bugs/421842
You received this bug notification because you are a member of
I don't have enough memory (640M) to update Live CD to latest, but have
now tried with alpha-5. There are reproducible screen problems with
alpha-5 (e.g. hang after resizing a window), where everything seems fine
in alpha-4. I have not seen the screen corruption in alpha-4 either,
but attach an
** Attachment added: List of fglrx-related files and complete package list
http://launchpadlibrarian.net/31403771/fglrx-list
--
screen corruption and segfaults with radeon m6 ly
https://bugs.launchpad.net/bugs/421842
You received this bug notification because you are a member of Ubuntu-X,
On Live CD alpha-5 dmesg is full of
[ 1044.070800] [drm:radeon_cp_start] *ERROR* radeon_cp_start called without
lock held, held -2147483648 owner e3d01240 e3d01b40
[ 1044.070834] [drm:radeon_cp_idle] *ERROR* radeon_cp_idle called without lock
held, held -2147483648 owner e3d01240 e3d01b40
...
Public bug reported:
Binary package hint: xorg
After an upgrade from 9.04 to 9.10 (which was interrupted as a result of
bug 404331), several new problems have appeared. Font rendering in
Abiword shows a grid pattern which alters as each character is added to
text; certain applications and
** Attachment added: Some messages from Xorg crashes
http://launchpadlibrarian.net/31041868/radeon-karmic-segfaults-etc.txt
** Attachment added: BootDmesg.txt
http://launchpadlibrarian.net/31041869/BootDmesg.txt
** Attachment added: Dependencies.txt
** Attachment added: abiword showing font corruption
http://launchpadlibrarian.net/31041951/Screenshot-abiword-fontrendering.png
--
[karmic] screen corruption and segfaults with radeon m6 ly
https://bugs.launchpad.net/bugs/421842
You received this bug notification because you are a member of
** Attachment added: System Monitor might look like this
http://launchpadlibrarian.net/31041978/Screenshot-System%20Monitor-tartan2.png
--
[karmic] screen corruption and segfaults with radeon m6 ly
https://bugs.launchpad.net/bugs/421842
You received this bug notification because you are a
** Attachment added: or System Monitor might look like this
http://launchpadlibrarian.net/31042043/Screenshot-System%20Monitor-tartan.png
--
[karmic] screen corruption and segfaults with radeon m6 ly
https://bugs.launchpad.net/bugs/421842
You received this bug notification because you are a
Thanks for that, but it looks like whatever improvements have been made
in the PPA, they don't affect this bug (or the new bug 421842).
I hadn't actually reinstalled the OS or run a live CD since reporting
this, just upgraded using Update Manager. The Karmic live CD (alpha-4)
seems to cause none
** Attachment added: Xorg log (from installed, buggy Karmic)
http://launchpadlibrarian.net/31042669/Xorg.0.log
--
X locks up when scrolling on Radeon Mobility M6 LY
https://bugs.launchpad.net/bugs/404331
You received this bug notification because you are a member of Ubuntu-X,
which is
** Attachment added: dmesg (from installed, buggy Karmic)
http://launchpadlibrarian.net/31042681/dmesg
--
X locks up when scrolling on Radeon Mobility M6 LY
https://bugs.launchpad.net/bugs/404331
You received this bug notification because you are a member of Ubuntu-X,
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** Attachment added: dmesg - OK live Karmic alpha-4
http://launchpadlibrarian.net/31042750/dmesg
--
X locks up when scrolling on Radeon Mobility M6 LY
https://bugs.launchpad.net/bugs/404331
You received this bug notification because you are a member of Ubuntu-X,
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** Attachment added: lspci (from installed, buggy Karmic)
http://launchpadlibrarian.net/31042700/lspci
--
X locks up when scrolling on Radeon Mobility M6 LY
https://bugs.launchpad.net/bugs/404331
You received this bug notification because you are a member of Ubuntu-X,
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** Attachment added: Xorg log - OK live Karmic alpha-4
http://launchpadlibrarian.net/31042726/Xorg.0.log
--
X locks up when scrolling on Radeon Mobility M6 LY
https://bugs.launchpad.net/bugs/404331
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed
** Attachment added: lsmod (from installed, buggy Karmic)
http://launchpadlibrarian.net/31042706/lsmod
--
X locks up when scrolling on Radeon Mobility M6 LY
https://bugs.launchpad.net/bugs/404331
You received this bug notification because you are a member of Ubuntu-X,
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** Attachment added: lsmod - OK live Karmic alpha-4
http://launchpadlibrarian.net/31042777/lsmod
--
X locks up when scrolling on Radeon Mobility M6 LY
https://bugs.launchpad.net/bugs/404331
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to
** Attachment added: lspci - OK live Karmic alpha-4
http://launchpadlibrarian.net/31042753/lspci
--
X locks up when scrolling on Radeon Mobility M6 LY
https://bugs.launchpad.net/bugs/404331
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to
If intrepid was somewhat better, jaunty has been considerably worse,
often freezing up within an hour using Firefox (I think it's
particularly common scrolling immediately after switching into the
Firefox window). I did have visual effects working for a while, and
there also seemed to be a
Backtrace for Intrepid attached - it looks like essentially the same
problem in the same function (RADEONCPGetBuffer). It may be slightly
less frequent now, twice in three days. Might as well upgrade to Jaunty
now...
** Attachment added: backtrace during lockup on intrepid
Couldn't install upgrades with build-dep or aptitude, so upgraded to
8.10 Intrepid, xserver-xorg-core 2:1.5.2-2ubuntu3.1 , xserver-xorg-
video-ati 1:6.9.0+git20081003.f9826a56-0ubuntu2.1. Very similar effect
has occurred once, (although cursor movement was slow/jerky after lockup
this time).
--
I've not tried, but am about to try installing xserver-xorg-core
2:1.6.0-0ubuntu14 and xserver-xorg-video-ati 1:6.12.1-0ubuntu2 from
Jaunty, and will report back.
3 backtraces attached, occurring at 2 different places where it seems to
get stuck and use all available CPU:
#2 0xb7b2896d in
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