Hello, I Installed a new video card (same model is running on another computer using openSUSE Leap 15.4 with same proprietary drivers just fine). Since then the computer boots to a blank screen. Using legacy grub2 to boot (menu displayed fine, first lines of initrd are displayed, then screen goes blank). Tried booting using nomodesset, uninstalled plymouth, rebuilt initrd, reinstalled bootloader no changes. I can start the X-Server via SSH, then screens work. I can also switch to other ttys then, showing the console. Probably a serial console would work also. ;-) video card is a Nvidia GeForce GTX 1080 Ti nvidia drivers (nvidia-video-G06-525.116.04-lp154.8.1.x86_64) load fine, dmesg (last thing I did was start the X server) can be found here: https://www.swabian.net/extern/opensuse/dmesg_blankscreen.txt current cmdline: BOOT_IMAGE=/boot/vmlinuz-5.14.21-150400.24.63-default root=UUID=406791e3-4103-4da5-8235-aa35ed5be74c nosplash resume=/dev/disk/by-id/scsi-36c81f660cfd00400232bc7c603abcd39-part4 splash=nosplash debug showopts elevator=cfq mitigations=auto nomodeset what do I miss? only significant difference to other pc (despite of other hardware (but identical video card)) is, that that one uses efi not legacy boot. Thank you, regards Paul Neuwirth