Unexplained VNC behavior

[James Weatherall]

Graham,

This sounds like a bug in the X core code relating to timers wrapping round
(which happens every 49 days, if I remember correctly).  See:

http://www.realvnc.com/pipermail/vnc-list/2005-February/049352.html

Cheers,

Wez @ RealVNC Ltd.


> -----Original Message-----
> From: vnc-list-admin "at" realvnc.com 
> [mailto:vnc-list-admin "at" realvnc.com] On Behalf Of Helwig Graham-A11558
> Sent: 28 February 2005 00:53
> To: 'vnc-list "at" realvnc.com'
> Subject: RE: Unexplained VNC behavior
> 
> Hello again,
> 
> After a lot of experimentation and searching of the mailing 
> lists I'm still no closer to resolving this problem. Can anyone help?
> 
> I'm invoking vncserver v4.0 on a SunOS(v5.8) machine using 
> the following command:
> 
> 	vncserver -depth 8 -geometry 1280x1024 -cc 3 -alwaysshared
> 
> This VNC session invokes dtwm. I'm viewing the vnc session on 
> a PC(Win2000 pro) using vncviewer v4.0.
> 
> There is something definitely going wrong when I open some 
> pull down menus (particular the ones that control 
> closing/resizing etc). Once this occurs, then weird things 
> happen including:
>   - mouse clicks have no effect.
>   - mouse pointer shape/direction from right-left to 
> left-right. It does not return back to normal (right-left).
>   - I can enter text into existing xterm, but it won't appear 
> until I move the mouse.
> It appears that the vncserver keeps on running but the mouse 
> and keyboard commands are not getting through. 
> 
> I've tried using different machines locally and remotely. 
> I've tried various vnc session window managers. I've tried 
> invoking dtwm using "dtwm", "dtsession" and "xsession". I got 
> the person on the remote end to replicate the same setup and 
> the same problems as I'm seeing. All without success. 
> 
> Does anyone know what I'm doing wrong or what is going wrong? 
> Is there any fix that I have missed?
> 
> Thanks in advance.
> Graham   
> 
> > -----Original Message-----
> > From: Helwig Graham-A11558 
> > Sent: Monday, 21 February 2005 5:59 PM
> > To: 'vnc-list "at" realvnc.com'
> > Subject: Unexplained VNC behavior
> > 
> > 
> > Hello,
> > 
> > I have been trying to connect from my PC to a remote Sun 
> > machine using VNC version 4. I have been experiencing the 
> > following problems:
> > 
> > 1) When I click on certain pull down menus in some 
> > applications running on the remote machine, the
> > session freezes. Restarting the VNC viewer does not unfreeze 
> > them, I have to kill and restart the VNC server. On occasions 
> > I have been able to recover the frozen session by randomly 
> > typing a few keys on the keyboard.
> > 
> > 2) For some applications (ie. gvim) I can enter text into it, 
> > while other applications I cannot (when I should be able to).
> > 
> > I also experience the same behavior when I VNC into the 
> > remote Sun machine from other Sun machine. However other 
> > people can VNC into this remote Sun machine with out any problems.
> > 
> > Any help will be appreciated.
> > 
> > Regards
> > Graham
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