Comment 0 for bug 405120

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Matthew Lai (cyberfish) wrote : resume from suspend doesn't work (powers off instead) for Acer Timeline 3810t

Resume from suspend (to RAM) doesn't work (powers off instead on resume, didn't touch the power button) for Acer Timeline 3810t (and friends).

http://www.acer.co.uk/acer/seu30e.do?LanguageISOCtxParam=en&link=ln374e&CountryISOCtxParam=UK&acond125e=58846&kcond48e.c2att101=58846&sp=page17e&ctx1g.c2att92=122&ctx2.c2att1=17&ctx1.att21k=1&CRC=821813855

Core 2 Solo (or Duo, both have this problem) ULV, Mobile Intel® GS45 Express Chipset, Intel Wifi 5100.

I have tried 9.04, 9.10 alpha 2 and 3, kernels 2.6.28 to 2.6.31, all 32-bit. BIOSes 1.04 and 1.08 (latest). Nothing works.

There is a single isolated report of suspend working with 64-bit 2.6.30.
https://help.ubuntu.com/community/AspireTimeline/Fixes

Suspend seems to work perfectly, but when a key is pressed to start resuming, the machine seems to start back up, but automatically powers off afer a few seconds (screen didn't come back up).

Using the "resume-trace" procedure described here does not yield any matches. Unloading all non-essential modules in single user mode doesn't fix it (used /etc/acpi/sleep.sh to initiate suspend).

Suspend is initiated through gnome-power-manager, but I don't think that's the problem.

What else can I try?

Thanks!