https://bugs.freedesktop.org/show_bug.cgi?id=34491
Summary: Resuming from Suspend to RAM causes poor 2D
performance
Product: xorg
Version: 7.4
Platform: x86 (IA32)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Driver/nouveau
AssignedTo: [email protected]
ReportedBy: [email protected]
QAContact: [email protected]
Created an attachment (id=43562)
--> (https://bugs.freedesktop.org/attachment.cgi?id=43562)
dmesg kernel log following a boot, suspend to RAM and then resume
I am using KDE 4.6.0 on Gentoo Linux's testing tree with the Linux 2.6.38-rc5
kernel. Resuming from a suspend to RAM kills 2D performance. This issue also
occurs with Linux 2.6.38-rc4.
I discovered this while I was testing a power management patch for Martin
Peres. His patch provided a proc interface for changing my card's performance
level. If I set the performance level and suspend to RAM, the system will not
resume at all and I cannot even ssh into it. Without setting a performance
level with his patch applied, the system will resume from a suspend to RAM, but
2D performance is awful. Resuming from a suspend to RAM also results in poor 2D
performance even if his patch is not applied.
There are some messages in the dmesg kernel log that seem to describe what is
going wrong, but I do not understand them. I have attached the output.
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