Comment 0 for bug 2000739

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Markus S (qemvirt) wrote : QEMU 6.2.0 fullscreen problem

Running QEMU version 4.2.1 on Ubuntu 20.04 via

qemu-system-x86_64 \
  -boot d \
  -cdrom ubuntu-22.04.1-desktop-amd64.iso \
  -m 4096M \
  -machine type=q35,accel=kvm \
  -cpu host \
  -smp 2 \
  -device qxl-vga

and pressing ctrl+alt+f after booting the Ubuntu 22.04 live ISO and adjusting the display resolution to match the native resolution, works as expected, i.e., the VM screen is correctly displayed in fullscreen.

However, after running the same command for QEMU version 6.2.0 on Ubuntu 22.04 and pressing ctrl+alt+f after making the resolution adjustment, yields a fullscreen view where the space occupied by the GNOME top bar (top panel with date in center) of the host is not used. The top bar itself is not visible but instead the purple background is shown where the top bar resides.

The problem also occurs when replacing '-device qxl-vga' by '-device VGA,vgamem_mb=64'. The problem however does not occur when using '-device virtio-vga'.