On Mon, 9 Feb 2009, Colin Guthrie wrote:
With trying to match depths so that you didn't end up with a depth 24
fbconfig for the 32-bit composite visual, I broke the alpha bits on the depth
...
Applying this patch gives me back compiz.
I'd nominate this for 1.6 soon, just in case Keith has a merging fit and
grabs the other one by itself.
This affects Xvnc as well. We had a problem several years ago, with Xorg
6.8.2: See
http://lists.freedesktop.org/archives/xorg/2005-June/008313.html . The
latest 1.5 and 1.6 versions of xserver (ie without this patch) seems to
have the same problem. For example, older versions of Wine crashes upon
startup.
I've been able to apply this patch
(619c4d60eb3a8a51a8300ccf8ab5b98a688e6e12) plus the "Don't match fbconfigs
to visuals with mismatched channel masks" one
(5100d829a4d71ce4a9fbc2b81694a1fb90066ccf) to the 1.6 branch, and it seems
to solve the problems with Wine. So I'm positive to cherrypick this one
for the 1.6 branch.
For 1.5.3, however, these patches doesn't solve the Wine crash. In fact,
they make the problem worse. After applying, glxinfo complains:
Error: couldn't find RGB GLX visual
Plus:
$ glxgears
Error: couldn't get an RGB, Double-buffered visual
Of course, this might very well be a problem specific to Xvnc. The visual
setup is in
http://vnc-tight.svn.sourceforge.net/viewvc/vnc-tight/trunk/unix/xserver/hw/vnc/xvnc.cc?view=markup
. Most of the code has been copied from Xvfb. I guess I need to put myself
in GLX mood to understand what's going on, just like I did 4 years ago,
but if anyone has an idea...
Regards,
---
Peter Åstrand ThinLinc Chief Developer
Cendio AB http://www.cendio.com
Wallenbergs gata 4
583 30 Linköping Phone: +46-13-21 46 00
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