Bug#689268: [wheezy] Intel HD 4000 (Ivy Bridge) graphics freeze
Per Foreby wrote:
> However my computer has been running without any problems for 11 days, so
> whatever caused this bug seems to be fixed in the 3.5.5 kernel.
Drat. Ok.
To recap:
* Asus P8Z77-V LE.
* Newish system. Works fine under load (e.g., Folding@Home) but when
you started normal interactive use it started to freeze a few times
a day while you were interacting with it (in particular, the freeze
happens around the same time as a keyboard or mouse action).
* The freeze is a bad one --- the fan spins down, the NIC stops
responding, caps lock doesn't light up, ctrl+alt+del and magic
sysrq have no effect. No messages about it in netconsole.
* Happens reliably (how reliably? >80% of the time?) after a few
hours of sustained use (?)
* Logs available in the bug log. No obvious smoking guns. ;-)
* Changing the amount of memory allocated to the integrated GPU in
BIOS doesn't change anything.
* The above describes 3.2.23-1. Based on a week and a half of running
3.5.5-1~experimental.1 it doesn't seem to be affected.
None of the changes from 3.2 to 3.5.5 are jumping out as likely
candidates for the fix, but that's a pretty wide range. How reliably
can you reproduce the hang on a known-bad kernel? If you have time to
try 3.2.30-1 from sid, 3.4.4-1~experimental.1 from
http://snapshot.debian.org/package/linux/ and 3.3.6-1~experimental.1
from http://snapshot.debian.org/package/linux-2.6/ then that could
help narrow down the search.
Thanks again for your help and patience.
Regards,
Jonathan
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