On 8/18/2021 7:19 PM, Roland Roberts wrote:
On 8/10/2021 8:58 AM, Roland Roberts wrote:
I have a new, company-supplied Windows 10 laptop, using Cygwin to do development. I’m having a
problem getting XWin to launch apps. XWin appears to be mostly working normally, meaning if I
launch a Cygwin mintty instance, I can manually set DISPLAY=:0.0 and start up X application from
the shell prompt. But trying to launch from my .XWinrc, the application never displays and I can’t
find a useful error log to track down the issue. I’m pretty sure it’s some permission someplace my
account doesn’t have (and I can probably get IT to change that if I can just identify what it is).
[...]
[ 1490.390] executing '/bin/mintty', pid 772
[ 1902.312] executing '/bin/mintty', pid 1200
You can see the last two things that were launched. And here’s the process list
29267 rrobert1> ps -ef
UID PID PPID TTY STIME COMMAND
rrobert1 610 1 ? 08:31:58 /usr/bin/mintty
rrobert1 471 1 ? 08:31:46 /usr/bin/gpg-agent
rrobert1 772 605 ? 08:32:24 /usr/bin/XWin
rrobert1 1205 611 pty0 08:39:31 /usr/bin/ps
rrobert1 403 1 cons0 08:31:42 /usr/bin/sh
rrobert1 442 1 ? 08:31:44 /usr/bin/ssh-agent
rrobert1 611 610 pty0 08:31:58 /usr/bin/bash
rrobert1 604 403 cons0 08:31:49 /usr/bin/xinit
rrobert1 1200 605 ? 08:39:16 /usr/bin/XWin
rrobert1 605 604 cons0 08:31:49 /usr/bin/XWin
rrobert1 609 604 ? 08:31:50 /usr/bin/sh
Any suggestions on where to poke to diagnose this? My home Windows 10 machine has no problem at
all. Oh, and cygcheck report version 3.1.4. Yes, that’s a little old, but we are stuck there until
we can work out an issue with our build environment and the change for 3.1.5+ in how symlinks are
handled.
So, no suggestions :-(
I'm looking for anything at all that I could put into my .XWinrc that might produce some diagnostic
output short of running XWin under a debugger. I'm completely guessing that it's a permission thing.
As I mentioned, I *can* launch X applications from a Cygwin mintty shell console after setting
DISPLAY, including being able to launch things like Emacs, so whatever is stopping these from
displaying, it's only affecting things launched from my .XWinrc.
A wondering:
- How are the programs mentioned in the .XWinrrc file?
- Is /usr/bin on the PATH when XWin is started?
I recall having issues around the PATH at some point ...
Regards - Eliot Moss
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