这两天重新装了Manjaro KDE作为桌面。因为双显示器的缩放问题(x11只能设置全局缩放不能设置per monitor缩放)只能用wayland。 结果装了Nvidia的专有驱动以后登陆进去就黑屏。(其实Mesa的NVK倒也不是不能用，只是我起了虚幻以后发现nvk可能性能还是不太行，有点卡卡的)。
查了半天从manjaro的论坛里发现了一个类似症状的帖子:
https://forum.manjaro.org/t/cannot-use-wayland-with-kde-on-nvidia/163318/8
翻了一下有大佬给了解决方案
No plasma interface with kernel 6.9 + Nvidia gpu + Wayland
If you encouter a black screen with no inteface after login in, it’s probably a problem with simpledrm loading.
To solve it add nvidia_drm.fbdev=1 to /etc/default/grub
in the line begining with GRUB_CMDLINE_LINUX=" .
Verify that you also have nvidia_drm.modeset=1 in the same line.
Then exec sudo update-grub
Also, verify that you have nvidia_drm in /etc/mkinitcpio.conf in the MODULES= or HOOKS= line.
Exemple :
MODULES=(nvidia nvidia_modeset nvidia_uvm nvidia_drm)
If it was not present, then run sudo mkinitcpio -P after adding it.
- 修改/etc/default/grub,在GRUB_CMDLINE_LINUX=""里添加
nvidia_drm.modeset=1 nvidia_drm.fbdev=1，运行sudo update-grub - 在/etc/mkinitcpio.conf里添加
MODULES=(nvidia nvidia_modeset nvidia_uvm nvidia_drm)，运行sudo mkinitcpio -P,然后重启