Resetting screen resolution on crash

[Erich Hoover]

I was reading the brief summary on WineConf (
http://yokozar.org/blog/archives/171) and saw an interesting item:
> We need some help from Freedesktop.org for solving bug 10841.  Essentially
> we need a standard way of saying “hey reset the resolution when I’m done,
> even if I crash.” I was “volunteered” for the task of approaching the
> respective projects.

I believe this is a case that we can detect on our own, attached is a small
standalone example of using fork() in such a way that you could reset the
screen resolution even if an application crashed.

Erich Hoover
[e-mail]

[Henri Verbeet]

2009/11/18 Erich Hoover :
> I was reading the brief summary on WineConf
> (http://yokozar.org/blog/archives/171) and saw an interesting item:
> > We need some help from Freedesktop.org for solving bug 10841.  Essentially
> > we need a standard way of saying “hey reset the resolution when I’m done,
> > even if I crash.” I was “volunteered” for the task of approaching the
> > respective projects.
>
> I believe this is a case that we can detect on our own, attached is a small
> standalone example of using fork() in such a way that you could reset the
> screen resolution even if an application crashed.

That's not what the bug is about. The bug is about the case where you
have a fullscreen application in a different resolution from the
desktop, and you switch to a different (non-fullscreen) application.
In that case the display resolution should be reset to the desktop
resolution again. At least part of that involves properly handling the
CDS_FULLSCREEN flag to ChangeDisplayMode().