Bug 242280

Summary: VNC won't serve WindowMaker as it did in FC6
Product: [Fedora] Fedora Reporter: Ian Laurie <nixuser>
Component: vncAssignee: Adam Tkac <atkac>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: low    
Version: 7CC: ovasik
Target Milestone: ---   
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Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: 4.1.2-19.fc7 Doc Type: Bug Fix
Doc Text:
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Last Closed: 2007-10-29 19:06:17 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Flags
Screenshot of WindowMaker through VNC server. none

Description Ian Laurie 2007-06-02 23:02:36 UTC 
Description of problem:
VNC won't serve WindowMaker as it did with FC6.

Version-Release number of selected component (if applicable):
vnc-server-4.1.2-16.fc7
WindowMaker-0.92.0-12.fc7


How reproducible:
Always.

Steps to Reproduce:
1. Set up /etc/sysconfig/vncservers like this:

  VNCSERVERS="1:vnc"
  VNCSERVERARGS[1]="-geometry 1024x768 -depth 16"

2. Set up $HOME/.vnc/xstartup like this:

  [ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup
  [ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources
  #xsetroot -solid grey
  vncconfig -iconic &
  xterm -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" &
  # twm &
  # mwm &
  wmaker &

3. Launch the VNC server.
4. Launch the VNC client to localhost:1
5. WindowMaker is unusable.
  
Actual results:
WindowMaker is unusable.  You cannot move windows due to corruption
within the windows.  Icons also get corrupted.

Expected results:
This worked well in FC6.  I always serve WindowMaker via VNC because
it uses up far less memory than GNOME and is a lot more usable than
say twm or mwm.  WindowMaker works fine when used as a login session
from gdm.


Additional info:
VNC doesn't work at all at color depth 24 (see bug# 242277).
See the attached file for an example of the screen corruption.
Comment 1 Ian Laurie 2007-06-02 23:02:36 UTC 
Created attachment 156008 [details]
Screenshot of WindowMaker through VNC server.
Comment 2 Ian Laurie 2007-06-03 01:09:58 UTC 
Because this is a show stopper for me, I have uninstalled vnc-server-4.1.2-16.fc7,
vnc-4.1.2-16.fc7 & vnc-libs-4.1.2-16.fc7 and installed vnc-4.1.2-3.fc6 & 
vnc-server-4.1.2-3.fc6 from the FC6 distribution.

Works perfectly as far as I can tell.  This downgrade also fixes VNC bug# 242277.

Using VNC from FC6 is an easy fix for others who find they have these problems.
Comment 3 Adam Tkac 2007-06-04 19:15:10 UTC 
Screen corruption is due bad handling of Composite extension. You could try
"vncserver -depth :1 -extension Composite". Works fine for me. I'm going to
investigate where problem is and fix it

Regards, Adam
Comment 4 Adam Tkac 2007-06-07 15:13:20 UTC 
I've found that problem is in main X source. I've filled bug #243142. If you run
Xvnc in 16bit mode and disable Composite extension (fc6 vnc doesn't support so
you don't have any problems with that version) all works nicely. (as I write
upper, try "vncserver :1 -extension Composite").

A
Comment 5 Ian Laurie 2007-06-08 08:48:11 UTC 
Adam, I'll try vnc-4.1.2-17.1.fc8.src.rpm if you can fix the build errors for me.
At them moment I need VNC to work so I want to stick with the FC6 version.  If
you can post a fixed source rpm or post binaries Friday your time, I'll test 
over the weekend.
Comment 6 Ian Laurie 2007-06-08 11:18:09 UTC 
vnc-4.1.2-17.1.fc7.i386.rpm downloaded from
http://koji.fedoraproject.org/koji/taskinfo?taskID=30866 with an
/etc/sysconfig/vncservers file of:

VNCSERVERS="1:vnc 2:vnc 3:vnc"
VNCSERVERARGS[1]="-geometry 1280x1024 -depth 24 -extension Composite"
VNCSERVERARGS[2]="-geometry 1280x960  -depth 24 -extension Composite"
VNCSERVERARGS[3]="-geometry 1024x768  -depth 24 -extension Composite"

seems to work with twm and WindowMaker.  GNOME apps run OK under either also.
Will continue to test.
Comment 7 Adam Tkac 2007-06-08 11:34:19 UTC 
(In reply to comment #6)
> /etc/sysconfig/vncservers file of:
> 
> VNCSERVERS="1:vnc 2:vnc 3:vnc"
> VNCSERVERARGS[1]="-geometry 1280x1024 -depth 24 -extension Composite"
> VNCSERVERARGS[2]="-geometry 1280x960  -depth 24 -extension Composite"
> VNCSERVERARGS[3]="-geometry 1024x768  -depth 24 -extension Composite"
> 
> seems to work with twm and WindowMaker.  GNOME apps run OK under either also.
> Will continue to test.
> 
With 24bit depth you don't have to disable Composite extension. Only 16 bit
depth + Composite is buggy. (you could simple run -geometry 1280x1024 -depth 24
for example)

Adam
Comment 8 Ian Laurie 2007-06-08 11:54:11 UTC 
Adam, confirmed, the new vnc-server-4.1.2-17.1.fc7.i386.rpm works at 24-bit
without the composite option.
Comment 9 Fedora Update System 2007-10-29 19:06:15 UTC 
vnc-4.1.2-19.fc7 has been pushed to the Fedora 7 stable repository.  If problems still persist, please make note of it in this bug report.