RE: Trouble with the xwin and ms remote desktop

["Matta, Sunil" <sunil dot matta at bankofamerica dot com>]

Forgot to include the stackdump, if this helps.


Exception: STATUS_ACCESS_VIOLATION at eip=00410C8C
eax=00000000 ebx=0000005F ecx=0022CA90 edx=0084BAF0 esi=000001C3
edi=0084E5D8
ebp=0022CAC8 esp=0022CA50 program=C:\cygwin\bin\XWin.exe, pid 5012,
thread main
cs=001B ds=0023 es=0023 fs=003B gs=0000 ss=0023
Stack trace:
Frame     Function  Args
0022CAC8  00410C8C  (0084C008, 0084E5A0, 00000000, 005D05A8)
0022CAE8  004D2EE0  (0084C008, 0022CB54, 005D05A8, 005D05A8)
0022CB18  004E147E  (0022CB54, 005D05A8, 00000001, 0022CB90)
0022CBF8  0053544C  (00906B40, 00000000, 00000000, 01A00023)
0022CC48  00500E7B  (00843360, 00000002, 00000000, 004DCCC9)
0022CC98  004DD08B  (00000003, 008424D0, 00840090, 61166990)
0022CD98  61006148  (00000000, 0022CDD0, 610054C0, 0022CDD0)
610054C0  61004416  (0000009C, A02404C7, E8611001, FFFFFF48)
2089677 [main] XWin 5012 _cygtls::handle_exceptions: Exception:
STATUS_ACCESS_VIOLATION
2092567 [main] XWin 5012 _cygtls::handle_exceptions: Error while dumping
state (probably corrupted stack)


Thanks,

Sunil

> -----Original Message-----
> 
> Jon: thanks for the response. And yes, Xwin definitely crashes.
> 
> On a desktop running Windows xp, started Xwin on a two 
> monitor screen with wmaker as the window manager.
> Go home, connect to the desktop via a small laptop running xp as well.
> I am connecting using xp's remote desktop facility : mstsc.exe.
> 
> Upon connection to the desktop screen, I see the xwin icon on 
> the taskbar, and then xserver immediately crashes.
> 
> Although, I just realized that the xwin root window is on 
> screen 1, which the laptop cant even see. Maybe that's why 
> xwin crashes ???
> 
> I will try again after I move the xwin to screen 0 and let you know.
> 
> 
> Also as a side, I have tried to use fvwm, but I don't see the 
> usual virtual desktops on the screen ???
> Which is why I am using wmaker as the window manager.
> 
> Sunil
> 
> 
> 
> 
> > -----Original Message-----
> > From: Jon TURNEY [mailto:jon.turney@dronecode.org.uk]
> > Sent: Wednesday, July 29, 2009 1:52 PM
> > To: cygwin-xfree@cygwin.com
> > Cc: Matta, Sunil
> > Subject: Re: Trouble with the xwin and ms remote desktop
> > 
> > On 29/07/2009 14:45, Matta, Sunil wrote:
> > > I have been running Xwin on xp pro for a week along with 
> xterms and 
> > > emacs on my desktop.
> > >
> > > I then tried to remote connect (ms remote desktop: 
> > mstsc.exe) to the
> > > desktop from a laptop across the internet.
> > >
> > > 1) As soon as I had connected to my desktop (which was
> > running xwin),
> > > the xserver crashed. I could see the rest of the ms xp 
> apps on the 
> > > remote screen though.
> > >
> > > The laptop has a 14" screen whereas the desktop has twin
> > 19" screens.
> > > I then re-started the xserver from the remote laptop while
> > connecting
> > > to the desktop, which seemed to be working fine as long as
> > I stayed on
> > > the laptop.
> > >
> > > 2) When I got back to my desktop, the xserver still thought
> > that the
> > > laptop's screen was in use, and wouldnt display correctly
> > past the top
> > > two thirds of screen 0.
> > > I guess this makes sense since the xserver knew of the
> > smaller screen
> > > size when it was started during the remote session.
> > > Consequently, anything on the bottom of the screen would
> > not draw at
> > > all, or refresh properly.
> > > i.e. if I had an xterm on the lower end of the monitor, it
> > would not
> > > accept any key strokes until I moved the xterm to the top
> > two-thirds
> > > of the screen.
> > >
> > >
> > > Is there any way to request Xwin.exe to dynamically 
> "resize" itself 
> > > rather than bouncing the xserver a specific size/resolution
> > profile ??
> > >
> > > Otherwise, I might have to bounce the xserver every time i
> > alternate
> > > between the desktop and the laptop.
> > 
> > This is a known limitation. The only workaround is to restart the 
> > Xserver when the display resolution changes.  Having used 
> the Xserver 
> > in a similar way, I do know how irritating that is :-)
> > 
> > This is the "Windows display size/Monitor count/position 
> changes while 
> > running." item on the todo list at [1], as connecting via 
> RDP with a 
> > different desktop size effectively changes the display size
> > 
> > However, this shouldn't be causing a crash, so if you could provide 
> > the /var/log/Xwin.0.log for a session when that happens, 
> that would be 
> > useful.
> > 
> > [1] http://x.cygwin.com/devel/todo.html
> > 

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