Following my previous post I have amended the above, to reflect that values can be changed, but only within constrictive ranges. Please amend these ranges to allow overclocking and undervolting.
** Description changed: GPU=Rx vega m gl Release=Focal, 20.04 (development) xserver-xorg-video-amdgpu version=19.1.0-1 (active development) - The expected outcome of altering the file, pp_od_clk_voltage, p-states cannot be changed using echo commands i.e. - echo "s 3 700 700" > /sys/class/drm/card1/device/pp_od_clk_voltage - Various variations of the above have been tried, including using sudo su and checking file write permissions. + /sys/class/drm/card1/device/pp_od_clk_voltage cannot be change beyond + the parameters stated at the bottom of this file within the title + OD_RANGE, as follows: - The file power_dpm_force_performance_level could be changed only within sudo su when DRI_PRIME=1 was used to open a program in the background i.e. DRI_PRIME=1 steam: - sudo su - echo "manual" > /sys/class/drm/card1/device/power_dpm_force_performance_level + OD_RANGE: + SCLK: 225MHz 1011MHz + MCLK: 300MHz 700MHz + VDDC: 750mV 750mV - Following this, pp_od_clk_voltage could still not be changed. + The parameters in OD_RANGE are too constrictive and do not allow + practcable overclocking/undervolting. Please could these values be + changed to the following?: - A similar bug was found here; + OD_RANGE: + SCLK: 225MHz 1500MHz + MCLK: 300MHz 850MHz + VDDC: 300mV 1500mV + + This bug was also found here; https://gitlab.freedesktop.org/drm/amd/issues/574 - However, I was not able to amend any P-states as described in the bug in this link. - The voltages and clock speeds cannot be amended. + The voltages and clock speeds cannot be amended above 1011Mhz, the HBM2 + cannot exceed 700MHz and all voltages can only equal 750mV. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-amdgpu in Ubuntu. https://bugs.launchpad.net/bugs/1861633 Title: Rx vega m gl undervolt and overclock pp_od_clk_voltage values cannot be changed using echo Status in xserver-xorg-video-amdgpu package in Ubuntu: New Bug description: GPU=Rx vega m gl Release=Focal, 20.04 (development) xserver-xorg-video-amdgpu version=19.1.0-1 (active development) /sys/class/drm/card1/device/pp_od_clk_voltage cannot be change beyond the parameters stated at the bottom of this file within the title OD_RANGE, as follows: OD_RANGE: SCLK: 225MHz 1011MHz MCLK: 300MHz 700MHz VDDC: 750mV 750mV The parameters in OD_RANGE are too constrictive and do not allow practcable overclocking/undervolting. Please could these values be changed to the following?: OD_RANGE: SCLK: 225MHz 1500MHz MCLK: 300MHz 850MHz VDDC: 300mV 1500mV This bug was also found here; https://gitlab.freedesktop.org/drm/amd/issues/574 The voltages and clock speeds cannot be amended above 1011Mhz, the HBM2 cannot exceed 700MHz and all voltages can only equal 750mV. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-amdgpu/+bug/1861633/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
