Your system information

• Steam client version (build number or date): Feb 18 2019, at 22:09:18, API v018, Package Versions 1550534751
• Distribution (e.g. Ubuntu): Debian Testing
• Graphics driver version (run nvidia-settings): Mesa 18.3.2
• Gist for SteamVR System Information: System Info
• Opted into Steam client beta?: No
• Opted into SteamVR beta?: Yes
• Have you checked for system updates?: Yes

Please describe your issue in as much detail as possible:

SteamVR 1.3.4 Beta will fail to launch due to the vrstartup.sh file failing. If I change the launch arguments in Steam to konsole --hold -e %command%, I get the following output:

+ '[' '' == '' ']'
+ pkexec setcap CAP_SYS_NICE=eip /home/goofybud16/.steam/steam/steamapps/common/SteamVR/bin/linux64/vrcompositor-launcher
Cannot run program setcap: No such file or directory
+ '[' 127 -ne 0 ']'
+ zenity --question '--text=Failed to finalize SteamVR setup. Continue anyway?'

** (zenity:13652): WARNING **: 15:37:15.456: Could not load ui file /usr/share/zenity/zenity.ui: /usr/share/zenity/zenity.ui: required gtk+ version 3.0, cur

(zenity:13652): Gtk-CRITICAL **: 15:37:15.456: IA__gtk_builder_get_object: assertion 'GTK_IS_BUILDER (builder)' failed

(zenity:13652): Gtk-CRITICAL **: 15:37:15.456: IA__gtk_builder_get_object: assertion 'GTK_IS_BUILDER (builder)' failed
+ exit

If I manually comment out the zenity lines in the vrstartup.sh file, SteamVR will function properly.

My system DOES have getcap and setcap, but they are in sbin, and unavailable to the vrstartup script.

~$ which getcap
~$ sudo which getcap
/sbin/getcap

Steps for reproducing this issue:

1. Update to SteamVR Beta 1.3.4
2. Launch SteamVR
3. Observe that SteamVR does not launch.