Yes indeed, cryptsetup is installed. I installed a full disk encrypted system via the alternate installer. I'm sorry that I forget to mentition this in the first place.
I attached the xrandr output, but I think it's not that usefull.
After setting GRUB_GFXMODE=1024x768 I see plymouth and after entering the cryptsetup/luks passphrase the system boots into X.
Thank you for your fast reply.
Yes indeed, cryptsetup is installed. I installed a full disk encrypted system via the alternate installer. I'm sorry that I forget to mentition this in the first place.
I attached the xrandr output, but I think it's not that usefull.
After setting GRUB_GFXMODE= 1024x768 I see plymouth and after entering the cryptsetup/luks passphrase the system boots into X.