Peter Sasi, thank you for reporting this and helping make Ubuntu better.
As per https://wiki.ubuntu.com/Releases, Maverick reached EOL on April
10, 2012.
If this is reproducible with a supported release, please execute the following
command only once, as it will automatically gather debugging information, in a
terminal:
apport-collect 659703
Otherwise, please mark this Status Invalid.
** Changed in: mesa (Ubuntu)
Importance: Undecided => Low
** Changed in: mesa (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/659703
Title:
System freeze possibly due to memory corruption
Status in mesa package in Ubuntu:
Incomplete
Bug description:
Binary package hint: libgl1-mesa-dri-experimental
System is Ubuntu 10.10 Maverick, just upgraded from Lucid, 4GB RAM
Lenovo ThinkPad T61, Intel(R) Core(TM)2 Duo CPU T9300 @ 2.50GHz,
nVidia Corporation G84M [Quadro NVS 140M] (rev a1), kernel
2.6.35-22-generic, using Nouveau driver, Both single monitor (laptop)
and dual screen (laptop + external DVI or VGA) setups.
After installing libgl1-mesa-dri-experimental version
7.9~git20100924-0ubuntu2 for 3D support system locks up in random amount of
time (2-30 minutes).
There is a visible image corruption on the background. Sometimes already on
boot, sometimes only later. Sometimes none, sometimes the lower part, sometimes
the whole background. It occours much more often with dual screen, using
laptop+DVI.
The time it takes to freeze seems to be related to images used: if I
load a 3000x3000 jpg (satelite image) in firefox it locks up
immediatelly, consistently. It does freeze ony using eg. 2 gnome
terminals, 1 firefox and 2 nautilus windows (no explicit 3D apps other
than compiz).
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