** Changed in: xserver-xorg-driver-ati
Status: Confirmed => Invalid
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https://bugs.launchpad.net/bugs/36596
Title:
[M6-LY] System freeze with DefaultDepth 16
Status in xserver-xorg-driver-ati:
Invalid
Status in Ubuntu:
Invalid
Status in xorg package in Ubuntu:
Invalid
Status in xserver-xorg-video-ati package in Ubuntu:
Fix Released
Bug description:
Forwarding this (ancient) bug from a Ubuntu reporter:
https://bugs.edge.launchpad.net/xserver-xorg-driver-ati/+bug/36596
[Problem]
By default, the DefaultDepth is set to 24, however on this hardware this
disables DRI. But when setting DefaultDepth to 16 it causes a system freeze.
Possibly there is some relation with bug 16365, which has similar
symptoms on the same hardware.
[lspci]
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Radeon
Mobility M6 LY [1002:4c59]
Subsystem: Compaq Computer Corporation Device [0e11:b11b]
(II) PCI: 00:00:0: chip 8086,3575 card ffff,ffff rev 02 class 06,00,00 hdr 00
(II) PCI: 01:00:0: chip 1002,4c59 card 0e11,b11b rev 00 class 03,00,00 hdr 00
(--) PCI:*(1:0:0) ATI Technologies Inc Radeon Mobility M6 LY rev 0, Mem @
0xd8000000/27, 0xd0100000/16, I/O @ 0x2000/8
[Original Report]
This seems to be a general problem (it also occured when i used bug-buddy)
but i can reproduce it easily using pan, among other methods.
The steps to reproduce the problem are:
a) run pan
b) update a newsgroup
c) quickly open task manager, stop the update task (using the stop icon)
d) click on the "trash" icon
e) system is frozen,
e.g. mouse not moving, even ctrl-alt-f1 does not work. I also have a
web server (apache2) running, and it is not accessible after the freeze.
Another way to reproduce the problem is:
a) run glxgears
b) move the window around.
Workarounds:
a) After changing from ubuntulooks to clearlooks theme, it occurs much less
frequently.
b) After changing from xorg "ati" to "vesa" driver, it has not
occurred yet (been using a few hours). (used together with
"ubuntulooks" theme )
c) option "RenderAccel 0" works
d) Disabling modules "dri" and "glx" works (at least as of June 2007)
I first reported it against:
- latest dapper as of 20060325,
- pan 0.14.2.91.
- kernel 2.6.15-19-686 #1 SMP PREEMPT Mon Mar 20 17:33:20 UTC 2006 i686
GNU/Linux . (I have also tried on kernel 2.6.15-19-386).
Also reported as still occurring on:
* Gutsy Alpha 4 (2007-08-21) - still freezes at DefaultDepth 16
* Hardy Alpha 6 (2008-03-10) - still freezes at DefaultDepth 16
* -ati 6.9.0 - still freezes at DefaultDepth 16
* [TODO: Test against 6.11.0]
My problems with "ati" does not seem 3D related, I have tried
disabling "dri" and "glx" modules and it still crashes.
My system is a PIII Mobile 1GHz, 384 MB RAM, and Mobility Radeon M6 LY
graphics.
I am still able to get a system freeze at defaultDepth 16. At depth 16
DRI is on (at depth 24 there is not enough memory for DRI).
Having said that, I myself do NOT have any requirements for defaultDepth 16
or DRI (just wanted to try some of the desktop effects).
I would not object if defaultDepth 16 is not supported for an 8Megabyte M6.
In trying older drivers, the problem seems to have started between
6.5.7.3 and 6.5.8.
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