Hello,
I’m adjusting pp_table settings to get most out of my GPU (RX 6800 XT) and it works but every time I restart PC the changes revert back to default. Any idea how I could make them persist?
For me pp_table is located in /sys/class/drm/card1/device/pp_table
I have to use chmod to be able to make changes:
sudo chmod o+w /sys/class/drm/card1/device/pp_table
Then I’m able to write in changes with upp:
upp -p /sys/class/drm/card1/device/pp_table set --write smc_pptable/SocketPowerLimitAc/0=312 smc_pptable/SocketPowerLimitDc/0=293 smc_pptable/TdcLimit/0=300 smc_pptable/FreqTableSocclk/1=1350 smc_pptable/FreqTableFclk/1=2000 smc_pptable/FclkBoostFreq=2000
And just in case you’re wondering if the effort even makes sene, yes it does:
Max OC with LACT with max default limits (left) vs max OC with edited pp_table (right) in the picture.
My knowledge here is limited so I apologise if I’m not being helpful, but at least in case of Arch there’s a special kernel flag (amdgpu.performancemask iirc) to allow OC of your graphics card, are you passing one in your setup?
Yes I do otherwise I wouldn’t be able to OC.
I have to enable it with script after every Kernel update.
What I’m doing goes beyond typical GPU overclocking otherwise there’s no need to do what I’m trying to achieve here.
If you had to compare it to Wimdows it’s basically MPT OC.