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.
roland
--
Roland Roberts, PhD
Brooklyn, NY USA
https://astrofoto.org
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