It doesn't look like it worked for me:
x@Akaigo-Arc:~$ dmesg | grep dpm
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-3.10.0-996-generic root=UUID=c569a25a-4c5c-4731-8836-2bdfd7ce3d7e ro quiet splash radeon.audio=1 radeon.dpm=1 vt.handoff=7
[ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.10.0-996-generic root=UUID=c569a25a-4c5c-4731-8836-2bdfd7ce3d7e ro quiet splash radeon.audio=1 radeon.dpm=1 vt.handoff=7
[ 29.492599] [drm:cypress_dpm_enable] *ERROR* rv770_upload_firmware failed
[ 29.492608] [drm:radeon_pm_init_dpm] *ERROR* radeon: dpm initialization failed
I'm using kernel 3.10.0-996-generic (yes, it has the patches) and I have a HD5400 Radeon card.
This is what the GRUB CMD line looks like (of /etc/default/grub):
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash radeon.audio=1 radeon.dpm=1"
There is also no /sys/class/drm/card0/device/power_method file too.
I didn't get the CEDAR firmware, but agd5f said that 7xx+ GPUs only need it....
x@Akaigo-Arc:~$ dmesg | grep dpm
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-3.10.0-996-generic root=UUID=c569a25a-4c5c-4731-8836-2bdfd7ce3d7e ro quiet splash radeon.audio=1 radeon.dpm=1 vt.handoff=7
[ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.10.0-996-generic root=UUID=c569a25a-4c5c-4731-8836-2bdfd7ce3d7e ro quiet splash radeon.audio=1 radeon.dpm=1 vt.handoff=7
[ 29.492599] [drm:cypress_dpm_enable] *ERROR* rv770_upload_firmware failed
[ 29.492608] [drm:radeon_pm_init_dpm] *ERROR* radeon: dpm initialization failed
I'm using kernel 3.10.0-996-generic (yes, it has the patches) and I have a HD5400 Radeon card.
This is what the GRUB CMD line looks like (of /etc/default/grub):
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash radeon.audio=1 radeon.dpm=1"
There is also no /sys/class/drm/card0/device/power_method file too.
I didn't get the CEDAR firmware, but agd5f said that 7xx+ GPUs only need it....
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