@nutznboltz: thanks! It seems the bug happens when the screen is set to 24 bits of depth. Can you please confirm, by testing if the bug disappears when using a different bit depth (or setting up KVM to emulate a different graphics card, such as "vga")?
@nutznboltz: thanks! It seems the bug happens when the screen is set to 24 bits of depth. Can you please confirm, by testing if the bug disappears when using a different bit depth (or setting up KVM to emulate a different graphics card, such as "vga")?