I've checked with the latest git version -- it has the same problem. New behavior (git thermald, as well as latest Ubuntu version with backports): thermald keeps the GPU frequency at 400 Hz after reaching 85 degrees, even if temperature decreases to 74. After the thermal regime stabilizes there are following measurements: GPU freq 400MHz CPU freq 2.4GHz Package temperature: 74 degrees FPS is 25-35 -- it's impossible to play the game intel_gpu_top displays that "Render/3D/0" engine is busy up to 100%, usually 97-99
Old behavior: thermald starts throttling after reaching 70 degrees but allows GPU to run on 660 MHz After the thermal regime stabilizes there are following measurements: GPU freq 660MHz CPU freq 1.3GHz Package temperature: 64 degrees FPS is 45-53 -- game is playable intel_gpu_top displays that "Render/3D/0" engine is almost always busy at 100% So new thermald ignores GPU demand and sacrifices the GPU performance in favor of CPU and at the same time keeps the higher temperature. I also have found a workaround -- to disable the new behavior one needs to remove the "--adaptive" switch. W/o it the new version works as the old one with that switch. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1944389 Title: Thermald 1.9.1-1ubuntu0.6 keeps Tigerlake GPU frequency on 400 MHz To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thermald/+bug/1944389/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
