https://bugs.kde.org/show_bug.cgi?id=452219
--- Comment #10 from CUI Hao <cuihao....@gmail.com> --- Created attachment 150302 --> https://bugs.kde.org/attachment.cgi?id=150302&action=edit My KDE log (default setting + KWIN_DRM_DEVICES to nvidia) My PC has a similar setup to a typical I+N laptop. I set Intel card as primary GPU (connected to one monitor) and use NVIDIA card to connect a second monitor. I observe the very same thing. Basically: 1. By default, kwin_wayland uses Intel card. Both monitors show picture. But the "NVIDIA screen" runs terribly slow. 2. If I set `KWIN_DRM_DEVICES=/dev/dri/card0` (the NVIDIA card), or set NVIDIA card as the primary GPU, then only the NVIDIA screen shows picture. I attached relevant log. The driver is NVIDIA-open 515.48.07, and plasma is 5.25.2. -- You are receiving this mail because: You are watching all bug changes.
