https://bugs.freedesktop.org/show_bug.cgi?id=38657

Summary: Redwood: power state #4 not used Product: DRI Version: unspecified Platform: All OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/Radeon AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: mkgmafbt@gmail.com

Created an attachment (id=48390) --> (https://bugs.freedesktop.org/attachment.cgi?id=48390) Part of dmesg with power states

It's a Sapphire Radeon HD5670 512MB GDDR5. DRM reports 5 power states, but low profile won't use #4, wich is the 2D profile, nor does dynpm. All kernels with Evergreen pm support are affected by this (possible) bug, including 3.0-rc4.

cat /sys/class/drm/card0/device/power_profile low

cat /sys/kernel/debug/dri/0/radeon_pm_info default engine clock: 775000 kHz current engine clock: 399990 kHz default memory clock: 950000 kHz current memory clock: 950000 kHz voltage: 1100 mV PCIE lanes: 16

(should be 150/300 MHz 0.9V)

lspci -nn | grep VGA 01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Redwood [Radeon HD 5670] [1002:68d8]