Hi, thanks a lot for the reply. Sorry I wasn't clear, this bug report for random freezing is with my fresh TW installation, using Plasma and the xf86-video-intel driver with SNA. Just to show that it's not a fundamentally buggy machine, I mentioned that previously I was running TW on it with the **Cinnamon** desktop and the xf86-video-intel driver with SNA. I originally would have filed this as a Plasma bug, since the only difference appears to be in the desktop environment. But I've researched and asked around a lot, and the general opinion appears to be that Plasma's way of using the video card makes it more likely to run into an underlying Xorg Intel driver bug. Here are some links: - https://tech.slashdot.org/story/15/08/06/1336251/kde-plasma-5-problem-traced-to-bug-in-intel-graphics-driver - https://forum.kde.org/viewtopic.php?t=127575 - https://forums.opensuse.org/showthread.php/526313-Plasma-5-Intel-Graphics-Leap-42-3 - https://forum.manjaro.org/t/kde-plasma-desktop-freezing/34855 - https://forums.opensuse.org/showthread.php/526608-KDE-Freezes-randomly-and-only-the-mouse-pointer-works