https://bugs.kde.org/show_bug.cgi?id=494108
--- Comment #6 from Michał Dybczak <michal.dybc...@gmail.com> --- Here is what I learned about this bug lately: 1. When using multimonitors, the stuttering is limited to laptop's screen, while on secondary one, it is mostly fluent but occasionally there are some fluency drops that pass (normally, there are no such problems). 2. This is definitely not a framebuffer bug and it doesn't show in journald, so the topic of this bug is wrong. It was just coincidence to see that bug in the logs. In fact, the framebuffer issue shows no visible or practical problems. 3. After the update to Plasma 6.2 the issue still happens but the drop rate or stuttering is less severe, namely, instead 2 second no response, there is a half second or less no response. Still, the feeling is, as if the deskop was a game with a 10 FPS per second or so. Still, not anything that can be accepted. 4. When it happened during a game, I noticed, that the cursor was stuttery, but not the game graphics, which stayed fluent. This make me think that the issue is the cursor itself, but if that was the case, it wouldn't be limited to laptop's screen. 5. Closing kwin_wayland, which restarts automatically, didn't resolve the issue so, this is not a kwin's problem. 6. It is not only the cursor, but also scrolling that is affected. See the below additional info. Because the problem was limited to the laptop's screen, there is a hardware component to this bug, but it has to be software related, because in my earlier system restore from the backup, the issue was gone and shows up again after the next update, so the update introduced it. The newest update made it less severe. Also, the fact that the game is fluent (aside the cursor), shows that there is no frame drop on the faulty screen, but the issue is somewhat limited to cursor and on one screen... On the other hand, when scrolling a site, this is also stuttery, so scrolling seems to be also affected. I will change the topic, but this is not even clear what is happening. It gets more mysterious. Please help with debugging it, so I could report it to a proper place. -- You are receiving this mail because: You are watching all bug changes.
