Resolution revert on application crash

[Alex Deucher]

On Thu, Jul 29, 2010 at 1:49 PM, Luke Benstead <kazade at gmail.com> wrote:
>
>
> On 29 July 2010 18:02, Alan Coopersmith <alan.coopersmith at oracle.com> wrote:
>>
>> Luke Benstead wrote:
>> > Hi all,
>> >
>> > I did bring this issue up for discussion about a year ago here:
>> > http://www.mail-archive.com/xorg-devel@lists.x.org/msg00832.html
>> >
>> > But that thread sort of died, and this is still an issue. There is a bug
>> > report for it here: https://bugs.freedesktop.org/show_bug.cgi?id=14255
>> >
>> > I've been trying to work out where the issue lies, well more
>> > specifically where it should be fixed. I've just had a chat to a Compiz
>> > dev and he thinks that if an application crashes it should be up to the
>> > xserver to restore the resolution. If a fullscreen program loses focus,
>> > then I think it's probably the WM's job of restoring the resolution
>> > there.
>> >
>> > Does anyone have any thoughts on how this should all be tied together?
>> > Does the xserver have enough information to restore the resolution if an
>> > application crashes? If so, is it a trivial thing to implement?
>>
>> As far as the X server knows, all resolution changes are intended to be
>> permanent configuration changes, not temporary for the life of a certain
>> app which just happens to be displaying a window the same size as the
>> screen resolution.   There's nothing for it to "restore".
>>
>> To do what you want I believe you'd have to update the RandR extension to
>> somehow capture intent - perhaps a new request to specify that any
>> resolution changes requested by this client only be applied when the
>> client has focus.
>>
>> --
>>        -Alan Coopersmith-        alan.coopersmith at oracle.com
>>         Oracle Solaris Platform Engineering: X Window System
>>
>
> I see. Who's in charge of adding to the RandR specification? This kind of
> functionality would definitely be really nice for projects like SDL and Wine
> and also games that have to change the resolution just for a single
> application window. What's the process for proposing this kind of feature?

Write an extension spec update (and even better, also create a patch
to implement it in the xserver) and propose it on this list.

Alex