https://bugs.kde.org/show_bug.cgi?id=517712
FormularSumo <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|WAITINGFORINFO |--- Status|NEEDSINFO |REPORTED --- Comment #4 from FormularSumo <[email protected]> --- (In reply to Zamundaaa from comment #3) > > USB-C device (charger or monitor) > If a charger can make this happen, I'd be very surprised if it was anything > but a kernel issue. > > > workqueue: pm\_runtime\_work hogged CPU for >10000us 5 times, consider > > switching to WQ\_UNBOUND > that bit in particular looks a bit suspicious, though I don't know enough > about kernel stuff to be sure. > > Do you see increased CPU, GPU usage, or reduced clock speeds for either one > of the two when the system lags? I've just added CPU and GPU frequency to my system monitor, and yes, I hadn't realised before, but CPU clockspeed was capped at 400 mhz, and GPU at 100mhz. After around a minute, the system lag stopped at the same time as both went up to their normal speed (3800 and 300 respectively). This is quite odd because I used to have a similar issue on a different Windows devices with the CPU clockspeed capping at 400 mhz - but in that case it happened consistently while being charged over USB-C and having less than 20% battery, which is a different trigger to this bug. I took a recording on my phone which shows the issue: https://photos.app.goo.gl/7gjezB82n14wQdoM9 (background noise is me scrolling the mouse on the other monitor to test if the laptop was aging). -- You are receiving this mail because: You are watching all bug changes.
