[Qemu-devel] [Bug 709584] [NEW] Fullscreen mode splits screen over monitor boundaries on dual-monitor system

[Brion Vibber]

Public bug reported:

I originally reported this for the Android SDK emulator, which is built
on QEMU: http://code.google.com/p/android/issues/detail?id=14336

Can confirm that this bug is present in stock QEMU shipped with Ubuntu 10.10:
QEMU PC emulator version 0.12.5 (qemu-kvm-0.12.5), Copyright (c) 2003-2008 
Fabrice Bellard

Steps to reproduce:
- get a Linux machine with multiple-monitor setup (tested using NVidia 
proprietary driver on Ubuntu 10.10 x86_64, with two monitors side-by-side in 
'TwinView' configuration)
- launch qemu
- hit ctrl+alt+f to go into fullscreen mode

Expected behavior:
- emulator should take over one screen (either the first screen, largest 
screen, or screen the emulator is presently on)
- emulator's display should center or scale to fit within available area of the 
taken-over screen

Actual behavior:
- emulator takes over both screens
- emulator's display is split over the boundary between the two screens

** Affects: qemu
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/709584

Title:
  Fullscreen mode splits screen over monitor boundaries on dual-monitor
  system

Status in QEMU:
  New

Bug description:
  I originally reported this for the Android SDK emulator, which is
  built on QEMU: http://code.google.com/p/android/issues/detail?id=14336

  Can confirm that this bug is present in stock QEMU shipped with Ubuntu 10.10:
  QEMU PC emulator version 0.12.5 (qemu-kvm-0.12.5), Copyright (c) 2003-2008 
Fabrice Bellard

  Steps to reproduce:
  - get a Linux machine with multiple-monitor setup (tested using NVidia 
proprietary driver on Ubuntu 10.10 x86_64, with two monitors side-by-side in 
'TwinView' configuration)
  - launch qemu
  - hit ctrl+alt+f to go into fullscreen mode

  Expected behavior:
  - emulator should take over one screen (either the first screen, largest 
screen, or screen the emulator is presently on)
  - emulator's display should center or scale to fit within available area of 
the taken-over screen

  Actual behavior:
  - emulator takes over both screens
  - emulator's display is split over the boundary between the two screens