Powersaving doesn't work on second card
Submitted by Aleksey Fedotov
Assigned to xf86-video-ati maintainers
Description
Created attachment 79751
dmesg from machine with two cards.
I have a laptop with two ati cards:
Mobility Radeon HD 6620G
Radeon HD 6400M
Enabled powersave mode on both cards:
#echo dynpm > /sys/class/drm/card0/device/power_method
#echo dynpm > /sys/class/drm/card1/device/power_method
Clock speed on the first card reduced almost immediatly:
#cat /sys/kernel/debug/dri/0/radeon_pm_info
default engine clock: 200000 kHz
current engine clock: 7990 kHz
default memory clock: 667000 kHz
But second card don't react at all:
#cat /sys/kernel/debug/dri/1/radeon_pm_info
default engine clock: 800000 kHz
current engine clock: 799940 kHz
default memory clock: 800000 kHz
current memory clock: 799870 kHz
voltage: 900 mV
Attachment 79751, "dmesg from machine with two cards.":
dmesg