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Thread: Ati 4870 radeon driver blank screen after resume

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i've tried several solutions issue, i'm having no luck.

issue recent, , not sure might causing it.

issue:

have @ 4870 graphics card on asus p6t motherboard , non overclocked i7 920 processor.

i'm using open source radeon driver.

if boot "cold" start, seems works fine.

use heavily suspend/resume capabilities.

happening machine wakes fine suspend/hibernation, works fine around 5 minutes , hangs:
screens (i have dual display) go black, keyboard stops responding, , have hard reset up. times happens again hard reset, , clear things i'll have power cycle completely.

i'm using 3.2.0-32 kernel:

linux kecortex 3.2.0-32-generic #51-ubuntu smp wed sep 26 21:33:09 utc 2012 x86_64 x86_64 x86_64 gnu/linux

, using ubuntu's radeon driver , x-org edger's ppa driver (more recent). issue happens both versions.

log in here: http://pastebin.com/t3vfqzre

appreciated.

edit: i'm using 12.04 updated, kubuntu backports.



Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Hardware [kubuntu] Ati 4870 radeon driver blank screen after resume


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