ubuntu-x-swat team mailing list archive

[Geir Ove Myhr <gomyhr@xxxxxxxxx>]

Pierre, on some other ubuntu freeze bugs on 855GM it is reported that
booting with the kernel parameter acpi=off works around the problem (Esc
at boot to show the Grub menu, 'e' to edit the default entry, add
acpi=off after quiet splash, Ctrl+C to boot IIRC). Could you check if
this is the case for you also?

Another tests I would like you to do:
- Check whether it occurs without KMS, that is, instead of acpi=off, use the option nomodeset

There are a couple of more options that you can try in xorg.conf at
https://wiki.ubuntu.com/X/Troubleshooting/Freeze#Narrow%20Subsystem%20it%20Occurs%20in
. If any of them stop the freezes or reduce the frequency of them that
is also a useful data point, since it may tell us which part of the
driver is responsible.

Finally, there's a chance that a newer kernel might have some fixes that
resolves this. You may get newer mainline builds at
http://kernel.ubuntu.com/~kernel-ppa/mainline/ and there is some more
information about those builds at
https://wiki.ubuntu.com/KernelTeam/MainlineBuilds .

Even if none of the mentioned tests changes anything, that is a very
useful thing to know.

-- 
[i855] Karmic / i855GM / Fujistu Siemens Amilo M7400 :  Freeze shortly after X startup on Intel i855
https://bugs.launchpad.net/bugs/477972
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