[Bug 33290] Wine strange fullscreen behavior

https://bugs.winehq.org/show_bug.cgi?id=33290

--- Comment #15 from Gabriel Corona  ---
Apparently, the nvidia Driver expects needs XRRSetScreenSize() before
XRRSetCrtcConfig(). Failing to do so leads to panning mode. I'm attaching a
prototype program which successfully change resolution (at least in the simple
cases) without introducing panning.

The needed steps are:

1. XGrabServer();

2. Disable the CRTC with XRRSetCrtcConfig;

3. XRRSetScreenSize to the new resolution;

4. XRRSetCrtcConfig to set the CRT to the new resolution (and reenable it);

5. XUngrabServer.

You can comment out the XRRSetScreenSize() call (and possibly everythin but the
main XRRSetCrtcConfig call) to get somethying similar to the current behaviour
of the Wine implementation which leads to panning (at least using the nvidia
driver).

I'm not sure if this is the expected behaviour ox xrandr or if this is a bug in
the nvidia driver.