Stopped working suddenly on Ubuntu 18.04

[snhirsch]

Was working fine until about 3 days ago, when this started happening:

`hirsch@z87:~$ bash -x run_scaled xv

• SCALING_FACTOR=2
• USE_OPENGL=no
• SLEEPTIME=1
• PERFORMANCE_OPTIONS='--encoding=rgb --mmap=yes --compress=0'
• '[' 1 = 0 ']'
• true
• '[' 1 -gt 0 ']'
• case $1 in
• break
• declare -i UNSCALED_RESOLUTION_X
• declare -i UNSCALED_RESOLUTION_Y
  ++ xrandr
  ++ sed -n -e 's/Screen 0:.current ([0-9]+) x ([0-9]+)./\1/p'
• UNSCALED_RESOLUTION_X=3840
  ++ xrandr
  ++ sed -n -e 's/Screen 0:.current ([0-9]+) x ([0-9]+)./\2/p'
• UNSCALED_RESOLUTION_Y=2160
  ++ bc
  ++ bc
• UNSCALED_RESOLUTION=1920x1080
  ++ shuf -i 10000-99999999 -n 1
• DISPLAYNUM=:10837945
  ++ printf '%q ' xv
• ESCAPED_PARAMS='xv '
• xpra start :10837945 '--xvfb=Xvfb +extension Composite -screen 0 1920x1080x24+32 -nolisten tcp -noreset -auth $XAUTHORITY' --env=GDK_SCALE=1 --env=GDK_DPI_SCALE=1 '--start-child=xv ' --exit-with-children
  using systemd-run to wrap 'start' server command
  'systemd-run' '--description' 'xpra-start' '--scope' '--user' '/usr/bin/xpra' 'start' ':10837945' '--xvfb=Xvfb +extension Composite -screen 0 1920x1080x24+32 -nolisten tcp -noreset -auth $XAUTHORITY' '--env=GDK_SCALE=1' '--env=GDK_DPI_SCALE=1' '--start-child=xv ' '--exit-with-children=yes' '--systemd-run=no'
  Job for run-rbde5af5f795a4f6ca2ad1953aa3f121e.scope failed.
  See "systemctl status run-rbde5af5f795a4f6ca2ad1953aa3f121e.scope" and "journalctl -xe" for details.
• sleep 1
• xpra attach :10837945 --desktop-scaling=2 --opengl=no --encoding=rgb --mmap=yes --compress=0
  2019-01-19 10:34:39,445 Xpra gtk2 client version 2.5-r21174 64-bit
  2019-01-19 10:34:39,446 running on Linux Ubuntu 18.04 bionic
  2019-01-19 10:34:39,447 window manager is 'KWin'
  2019-01-19 10:34:40,155 GStreamer version 1.14.1 for Python 2.7.15 64-bit
  xpra initialization error:
  cannot find live server for display :10837945
• xpra stop :10837945
  xpra initialization error:
  cannot find live server for display :10837945
  `
  Only the second recommended diagnostic returns a meaningful answer:

Jan 19 10:34:37 z87 polkitd(authority=local)[536]: Registered Authentication Agent for unix-process:12152:240225392 (system bus name :1.1502 Jan 19 10:34:37 z87 systemd[1612]: run-rbde5af5f795a4f6ca2ad1953aa3f121e.scope: Failed to add PIDs to scope's control group: Permission deni Jan 19 10:34:37 z87 systemd[1612]: run-rbde5af5f795a4f6ca2ad1953aa3f121e.scope: Failed with result 'resources'. Jan 19 10:34:37 z87 systemd[1612]: Failed to start xpra-start. -

Any suggestions?

[totaam]

--systemd-run=no

[sopgenorth]

I was able to fix this by installing xpra from the official site, instead of from the default Ubuntu sources. They don't have fantastic instructions though: https://xpra.org/trac/wiki/Download#Linux

[snhirsch]

:5938945.log
:97889336.log
run-xpra.txt

It's baaackk... Out of the blue, run_scaled is crashing again on Ubuntu 18.04. I have the --systemd-run=no specified. Please let me know what you might need to debug?

[kaueraal]

Xpra directly includes an equivalent tool since version 4.1. It is also called run_scaled and is part of the default Xpra installation.

Hence, this script here is deprecated and no longer maintained. I'm sorry that it took me quite long to officially announce it here. Thank you for your support and please continue your HiDPI journey with Xpra's tool!