https://bugs.kde.org/show_bug.cgi?id=521833
--- Comment #2 from [email protected] --- (In reply to Zamundaaa from comment #1) > Can you check with hotspot (https://github.com/KDAB/hotspot) where that CPU > usage comes from? A screenshot of the flamegraph should be enough, if > there's something obvious. > > Most likely that kind of power difference doesn't come from such a small > amount of CPU usage though. Is your GPU perhaps not automatically going into > the low power mode anymore? > > You can check its power state with > > cat /sys/class/drm/card0/device/power_state > (card0 may not be right, you can use drm_info to find out if you need card0 > or card1) Checking the power state, card 0 (Intel Arrow Lake-P Arc Pro 130T/140T) says "D3cold," while card 1 (NVIDIA GeForce RTX 5070 Max-Q/Mobile) says "D0." I'm having trouble using hotspot. I downloaded the AppImage from the link you sent and tried to Profile System with Elevated Privileges and Off-CPU Profiling. I record it for a minute, and the output says this: $ /usr/bin/pkexec /usr/bin/perf record -o /home/devin/Downloads/perf.data --call-graph dwarf,8192 --event cycles --switch-events --event sched:sched_switch --aio -z --sample-cpu --mmap-pages 16M --all-cpus --control fifo:/run/user/1000/hotspot-8342-3d50cd89-f2d8-4223-8abc-97c639a226ce-perf-control.fifo,/run/user/1000/hotspot-8342-3d50cd89-f2d8-4223-8abc-97c639a226ce-perf-ack.fifo [ perf record: Woken up 173 times to write data ] Couldn't decompress data 0x5b2088 [0x14bc]: failed to process type: 83 [Operation not permitted] [ perf record: Captured and wrote 47.324 MB /home/devin/Downloads/perf.data, compressed (original 1461.994 MB, ratio is 35.121) ] recording finished after 1min 01.153s I'm not sure how to fix this, as the Github website didn't have any information that would help me figure this out. -- You are receiving this mail because: You are watching all bug changes.
