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 Ubuntu-X, 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 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/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
