https://bugzilla.kernel.org/show_bug.cgi?id=70651 Bug ID: 70651 Summary: cannot write to power_dpm_force_performance_level: invalid argument (radeon 7730m) Product: Drivers Version: 2.5 Kernel Version: 3.13.3 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@xxxxxxxxxxxxxxxxxxxx Reporter: sjh+bugzillakernel@xxxxxxxxxxx Regression: No Created attachment 126301 --> https://bugzilla.kernel.org/attachment.cgi?id=126301&action=edit 3.13.3 dmesg hi, I'm using a notebook with intel ivy bridge + amd radeon 7730m hybrid graphics. With the latest stable kernel (3.13.3) I can't echo (low, high, auto) to /sys/class/drm/card0/device/power_dpm_force_performance_level: root@darkstar:~# echo "high"> /sys/class/drm/card0/device/power_dpm_force_performance_level -bash: echo: write error: Invalid argument root@darkstar:~# echo "low" /sys/class/drm/card0/device/power_dpm_force_performance_level low /sys/class/drm/card0/device/power_dpm_force_performance_level root@darkstar:~# echo "auto" /sys/class/drm/card0/device/power_dpm_force_performance_level auto /sys/class/drm/card0/device/power_dpm_force_performance_level I cannot say it's a regression since I haven't tried previous kernels. I can echo "battery", "performance" or "balanced" to /sys/class/drm/card0/device/power_dpm_state Some other info: root@darkstar:~# cat /sys/class/drm/card0/device/power_dpm_force_performance_level auto root@darkstar:~# lspci|grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) 01:00.0 VGA compatible controller: AMD/ATI [Advanced Micro Devices, Inc.] Chelsea LP [Radeon HD 7730M] (rev ff) root@darkstar:~# cat /sys/kernel/debug/vgaswitcheroo/switch 0:DIS: :DynOff:0000:01:00.0 1:IGD:+:Pwr:0000:00:02.0 root@darkstar:~# for i in /sys/class/drm/card0/device/power/*; do echo "$i: $(cat $i)"; done /sys/class/drm/card0/device/power/autosuspend_delay_ms: 5000 /sys/class/drm/card0/device/power/control: auto /sys/class/drm/card0/device/power/runtime_active_time: 33415 /sys/class/drm/card0/device/power/runtime_status: suspended /sys/class/drm/card0/device/power/runtime_suspended_time: 934700 /sys/class/drm/card0/device/power/wakeup: disabled /sys/class/drm/card0/device/power/wakeup_abort_count: /sys/class/drm/card0/device/power/wakeup_active: /sys/class/drm/card0/device/power/wakeup_active_count: /sys/class/drm/card0/device/power/wakeup_count: /sys/class/drm/card0/device/power/wakeup_expire_count: /sys/class/drm/card0/device/power/wakeup_last_time_ms: /sys/class/drm/card0/device/power/wakeup_max_time_ms: /sys/class/drm/card0/device/power/wakeup_total_time_ms: root@darkstar:~# cat /sys/kernel/debug/dri/0/radeon_pm_info default engine clock: 575000 kHz current engine clock: 210280 kHz default memory clock: 900000 kHz current memory clock: 00 kHz voltage: 825 mV PCIE lanes: 16 (This last output is different from the ones I've seen around) Am I missing something? dmesg attached Thanks -- You are receiving this mail because: You are watching the assignee of the bug. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
