[openbox] Multiple screens not considered correctly in Openbox-3.0-rc3
kacperw at online.no
Fri Oct 10 04:15:15 EDT 2003
> > The new feature in rc3, the black frame border while window cycling
> > was a very nice idea indeed.
> It's really stolen from metacity :) I can't take credit for it.
It's still very nice, and I know you implemented and released it within
three days of hearing of it. Or is it a pure cut-n-paste job? ;-)
> Ya, use xinerama, there is no support for dual head in non-xinerama
> setups. Changing this would be extremely non-trivial at this point so
> its going to stay that way. However, take heart, Openbox is pretty
> smart about xinerama, and ideas for further smartness would be
> Running 2 Openbox's does not work. They end up fighting over focus
> since they both keep losing track of the focus (since it disappears
> off to the other screen).
> Sorry, you'll have to learn to love xinerama or run Openbox 2 or
Okay, so I'm "learning to love" xinerama, for now.
I'm sorry to hear that there will be no non-xinerama openbox 3. Running
openbox 2 again is impractical, since I now have some applications (for
example gDeskCal) that don't work with ROX' compatability mode, and old
openbox doesn't work properly without rox' compatability mode.
Um, I assume a developer for a xinerama-supporting window manager uses
xinerama on a daily basis for his work?
The biggest trouble with xinerama isn't that window managers aren't
trying to be smart about it, because most are, but that X applications
are super-dumb about xinerama. In a common xinerama setup where the two
screens aren't the same model, one screen will invariably run at a
higher resolution than the other, resulting in rox, and other
applications attached to the bottom of the screen to disappear into the
deadzone created by the difference in resolutions. I haven't seen any
windowmanager handle this properly, which makes me think maybe this is
a xinerama limitation.
A second problem is that some applications adjust their initial width/
height according to the desktop area, which makes for some pretty
ridiculously x-stretched windows. Maximising a window over two screen
is fun, but confusing and perfectly useless.
Lastly, sort of on a side note, openbox has some issues with certain
applications maximising/restoring in xinerama. At least 4 out of 5
times openbox will crash if I fullscreen, then restore, then fullscreen
again a movie in xine, colorfully stating:
"Fuck yah. Core dump. (Signal=11)"
Where did this core go, anyways? (Ideally, though, xine would play the
movie in duplicate on both screens at once. Irrelevant, since I'm
pretty sure this is driver-depenent and has to do with the way video
Sometimes a window will maximise to a different screen than it's
running on. I guess it must be a focus thing, but I'm not quite sure.
It's hard to consistently reproduce these bugs.
I'll certainly try working with xinerama and keep posting any
difficulties I have here, if it helps.
More information about the openbox