tags 491202 moreinfo help thanks Lucas Nussbaum wrote: > On 21/08/08 at 10:50 +0200, Michael Biebl wrote: >> If acpi-support is working for you, could you please post a list loaded >> modules right before the suspend (or better, the diff between pm-utils >> and acpi-support). >> >> Does your computer require any quirks (lshal | grep quirk)? >> Can you experiment with a different set of quirks [1]? > > After a lot more testing: > acpi-support's legacy mode still fails sometimes (but rarely -- about > once every 20 suspend/resumes cycles). It never failed with 2.6.24, so > there's a kernel regression somewhere.
What about the latest 2.6.26-3 kernel in unstable? > > But using pm-suspend, it fails a lot more frequently. Using pm-suspend > --quirk-vbe-post --quirk-vbestate-restore (quirks suggested by lshal | > grep quirks), it fails about one third of the times. I also tried with > --quirk-vbemode-restore, with no improvement. > > I think that all of this might be related to the fact that my laptop > (Dell Latitude D610) is shipped using either an intel video card, or an > ATI one (my case). Maybe the work on this laptop was done by someone > with an Intel video card. Which graphics card is it exactly, what driver do you use (open/closed source)? Do you use a framebuffer (radeonfb)? With ATI cards and the opensource driver I had good experiences with using the s3_bios+s3_mode quirk. Looks very much like a kernel regression and I'm not sure if there is that much that can be done within pm-utils. Nonetheless it would be interesting what acpi-support (legacy mode) does differently so it doesn't fail that often. CCing Bart, maybe he can share his insight. Cheers, Michael -- Why is it that all of the instruments seeking intelligent life in the universe are pointed away from Earth?
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