According to [1] I should be able to set the power profile, e.g. with: echo "low" > /sys/class/drm/card0/device/power_profile
However I don't have this file: root@arpa:~# echo "low" > /sys/class/drm/card0/device/power_profile bash: /sys/class/drm/card0/device/power_profile: No such file or director The directory structure looks like that: root@arpa:~# tree /sys/class/drm/card0/ /sys/class/drm/card0/ ├── card0-DVI-I-1 │ ├── device -> ../../card0 │ ├── dpms │ ├── edid │ ├── enabled │ ├── modes │ ├── power │ │ ├── async │ │ ├── autosuspend_delay_ms │ │ ├── control │ │ ├── runtime_active_kids │ │ ├── runtime_active_time │ │ ├── runtime_enabled │ │ ├── runtime_status │ │ ├── runtime_suspended_time │ │ └── runtime_usage │ ├── select_subconnector │ ├── status │ ├── subconnector │ ├── subsystem -> ../../../../../../../class/drm │ └── uevent ├── card0-SVIDEO-1 │ ├── device -> ../../card0 │ ├── dpms │ ├── edid │ ├── enabled │ ├── modes │ ├── power │ │ ├── async │ │ ├── autosuspend_delay_ms │ │ ├── control │ │ ├── runtime_active_kids │ │ ├── runtime_active_time │ │ ├── runtime_enabled │ │ ├── runtime_status │ │ ├── runtime_suspended_time │ │ └── runtime_usage │ ├── select_subconnector │ ├── status │ ├── subconnector │ ├── subsystem -> ../../../../../../../class/drm │ └── uevent ├── card0-VGA-1 │ ├── device -> ../../card0 │ ├── dpms │ ├── edid │ ├── enabled │ ├── modes │ ├── power │ │ ├── async │ │ ├── autosuspend_delay_ms │ │ ├── control │ │ ├── runtime_active_kids │ │ ├── runtime_active_time │ │ ├── runtime_enabled │ │ ├── runtime_status │ │ ├── runtime_suspended_time │ │ └── runtime_usage │ ├── status │ ├── subsystem -> ../../../../../../../class/drm │ └── uevent ├── dev ├── device -> ../../../0000:01:00.0 ├── power │ ├── async │ ├── autosuspend_delay_ms │ ├── control │ ├── runtime_active_kids │ ├── runtime_active_time │ ├── runtime_enabled │ ├── runtime_status │ ├── runtime_suspended_time │ └── runtime_usage ├── subsystem -> ../../../../../../class/drm └── uevent I'm running Arch Linux with uname -a: Linux arpa 3.6.3-1-ARCH #1 SMP PREEMPT Mon Oct 22 10:23:56 CEST 2012 x86_64 GNU/Linux lsmod | grep rad ttm 64384 1 radeon drm_kms_helper 32877 1 radeon drm 218724 7 ttm,drm_kms_helper,radeon i2c_algo_bit 5391 1 radeon i2c_core 20707 5 drm,i2c_i801,drm_kms_helper,i2c_algo_bit,radeon Syslinux boot command: APPEND root=/dev/sda3 ro quiet splash init=/bin/systemd Did the directory structure change? What am I missing? Please CC me as I am not subscribed to the list. Thanks! [1] http://www.x.org/wiki/RadeonFeature#KMS_Power_Management_Options _______________________________________________ xorg-driver-ati mailing list [email protected] http://lists.x.org/mailman/listinfo/xorg-driver-ati
