Arch Linux

Description:
Power Management does not work with xf86-video-ati 1:6.14.6-2. Frequency is always at highest setting despite forcing low profile or using dynpm.

# echo low > /sys/class/drm/card0/device/power_profile
# echo profile > /sys/class/drm/card0/device/power_method

cat /sys/kernel/debug/dri/0/radeon_pm_info
default engine clock: 800000 kHz
current engine clock: 799940 kHz
default memory clock: 1250000 kHz
current memory clock: 1250000 kHz

# echo dynpm > /sys/class/drm/card0/device/power_method

cat /sys/kernel/debug/dri/0/radeon_pm_info
default engine clock: 800000 kHz
current engine clock: 799940 kHz
default memory clock: 1250000 kHz
current memory clock: 1250000 kHz

# sensors
radeon-pci-0100
Adapter: PCI adapter
temp1: +62.0 C

KMS is loaded and I can't find any errors

# dmesg | grep radeon
[ 0.000000] Command line: root=/dev/sda5 ro radeon.agpmode=8 initrd=../initramfs-linux.img BOOT_IMAGE=../vmlinuz-linux
[ 0.000000] Kernel command line: root=/dev/sda5 ro radeon.agpmode=8 initrd=../initramfs-linux.img BOOT_IMAGE=../vmlinuz-linux
[ 0.689743] [drm] radeon defaulting to kernel modesetting.
[ 0.689745] [drm] radeon kernel modesetting enabled.
[ 0.690031] radeon 0000:01:00.0: VRAM: 2048M 0x0000000000000000 - 0x000000007FFFFFFF (2048M used)
[ 0.690033] radeon 0000:01:00.0: GTT: 512M 0x0000000080000000 - 0x000000009FFFFFFF
[ 0.690105] [drm] radeon: 2048M of VRAM memory ready
[ 0.690106] [drm] radeon: 512M of GTT memory ready.
[ 0.690142] radeon 0000:01:00.0: irq 41 for MSI/MSI-X
[ 0.690148] radeon 0000:01:00.0: radeon: using MSI.
[ 0.690365] [drm] radeon: irq initialized.
[ 0.690606] [drm] enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0
[ 0.693655] radeon 0000:01:00.0: WB enabled
[ 0.693657] radeon 0000:01:00.0: fence driver on ring 0 use gpu addr 0x0000000080000c00 and cpu addr 0xffff88030be23c00
[ 0.693658] radeon 0000:01:00.0: fence driver on ring 1 use gpu addr 0x0000000080000c04 and cpu addr 0xffff88030be23c04
[ 0.693659] radeon 0000:01:00.0: fence driver on ring 2 use gpu addr 0x0000000080000c08 and cpu addr 0xffff88030be23c08
[ 0.725386] [drm] radeon: power management initialized
[ 0.855011] fbcon: radeondrmfb (fb0) is primary device
[ 1.183148] fb0: radeondrmfb frame buffer device
[ 1.183151] [drm] Initialized radeon 2.24.0 20080528 for 0000:01:00.0 on minor 0



Additional info:
* package version(s)
* config and/or log files etc.


Steps to reproduce: