Hi,
I am experiencing a strange issue.
I have a minimal Debian 12 template, additionally minimized as explained in this thread. In that template I have installed only xterm, less and vim.
I have used that template for AppVMs for quite a while. Then I stopped using all that for some months. (Yes, I do update all templates regularly, that one included)
Today I started an AppVM - xterm works fine.
I wanted to install some networking packages in the template, so I ran the template itself, however xterm won’t start. I tried:
user@dom0:~ > qvm-run -u root d12-net xterm
Running 'xterm' on d12-net
but nothing happens - no window opens.
Using qvm-console-dispvm, I ran tail -f in the template itself and retried the qvm-run (again xterm doesn’t start). Here is what it shows:
[ 471.171198] d12-net qrexec-agent[9592]: 2025-10-20 18:13:26.179 qrexec-agent[9592]: qrexec-agent-data.c:256:handle_new_process_common: executed: user:QUBESRPC qubes.WaitForSession dom0 (pid 9594)
[ 471.172559] d12-net qrexec-agent[9594]: pam_unix(qrexec:session): session opened for user user(uid=1000) by (uid=0)
[ 471.185492] d12-net systemd[1]: Started session-c3.scope - Session c3 of User user.
And when I Ctrl+C, I see:
[ 478.201945] d12-net qrexec-agent[9592]: 2025-10-20 18:13:33.210 qrexec-agent[9592]: process_io.c:249:qrexec_process_io: vchan connection closed early (fds: -1 22 24, status: -1 -1)
I also checked:
root@d12-net:~ # free -m
total used free shared buff/cache available
Mem: 933 233 588 2 242 700
Swap: 1023 0 1023
I tried doubling the RAM of the template - still same result.
I have never seen such strange behaviour.
Any ideas why this is happening?
