Comment # 57 on bug 1002875 from Aleksey Kontsevich

Change something in /etc/grub/default? I have following there:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nouveau.modeset=0
rd.driver.blacklist=nouveau video=vesa:off rhgb quiet"
GRUB_CMDLINE_LINUX="iommu=soft"
GRUB_TERMINAL="gfxterm"
GRUB_GFXPAYLOAD_LINUX="keep"
GRUB_VIDEO_BACKEND="vbe"
GRUB_TERMINAL_OUTPUT="gfxterm"
GRUB_GFXMODE="1920x1080x32,1280x800x32,1024x768x32,800x600x32"

Could something of above be the problem?