https://bugs.freedesktop.org/show_bug.cgi?id=38488 Summary: AMD Radeon HD 6950 (Cayman): Clocks not restored after resume from hibernation Product: DRI Version: XOrg CVS Platform: x86-64 (AMD64) OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/Radeon AssignedTo: dri-devel@xxxxxxxxxxxxxxxxxxxxx ReportedBy: h.judt@xxxxxx Power profile does not work after resuming. Steps to reproduce: 1) Boot system, set power profile to low. $ cat /sys/kernel/debug/dri/64/radeon_pm_info: default engine clock: 800000 kHz current engine clock: 249990 kHz default memory clock: 1250000 kHz current memory clock: 150000 kHz voltage: 900 mV 2) Hibernate system and resume. Expected results: * Power profile still set to low, clocks stay at low level. * Power profile can be changed, and changes have desired effects. Actual results: * Power profile still shows "low", but according to debugfs clocks are at default levels: default engine clock: 800000 kHz current engine clock: 799940 kHz default memory clock: 1250000 kHz current memory clock: 1250000 kHz voltage: 65281 mV Voltage does seem strange too, when regarding the 900 mV above. * Power profile can be changed, but clocks will not change. * Fan is spinning louder due to the higher (default instead of low level) clock speeds. I have to admit that I modified and applied tuxonice patch to linux-3.0-rc3, but on a laptop at work I use exactly the same and everything works correctly there (ATI Mobility Radeon HD 3400), so I don't believe I messed up. Cayman support is still quite new... Is there another way to change the clock speeds? -- Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
