Red Hat Bugzilla – Bug 243142
Composite extension handling in Xvfb is corrupted
Last modified: 2018-04-11 04:32:02 EDT
Description of problem:
I did investigations about bug #242280 and found that Xvfb have same problems.
Version-Release number of selected component (if applicable):
rpm -q xorg-x11-server-Xvfb
Steps to Reproduce:
1. run Xvfb :1 -ac -screen 0 800x600x16
2. run WindowMaker there (export DISPLAY=:1; wmaker)
3. try dump framebuffer (xwd -root -display :1 |xwud)
X Error of failed request: BadValue (integer parameter out of range for operation)
Major opcode of failed request: 91 (X_QueryColors)
Value in failed request: 0xffff0540
Serial number of failed request: 276
Current serial number in output stream: 276
works fine when you
- disable Composite extension
- run in 8bpp mode instead 16bpp (with Composite)
- shutdown wmaker
This badly affect Xvnc and causes screen-corruption (see attachments to bug #242280)
Thanks for the bug report. We have reviewed the information you have provided
above, and there is some additional information we require that will be helpful
in our diagnosis of this issue.
Please attach your X server config file (/etc/X11/xorg.conf) and X server log
file (/var/log/Xorg.*.log) to the bug report as individual uncompressed file
attachments using the bugzilla file attachment link below.
Could you please also try to run without any /etc/X11/xorg.conf whatsoever and
let X11 autodetect your display and video card? Attach to this bug
/var/log/Xorg.0.log from this attempt as well, please.
We will review this issue again once you've had a chance to attach this information.
Thanks in advance.
Those won't be helpful; Xvfb doesn't have a config or log file.
Already found out ... just was in mid-air collision when admitting it. OK, so
this is for you, ajax.
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