2019-03-05 10:49:01,455 xpra is ready. ^C 2019-03-05 10:49:07,264 got signal SIGINT 2019-03-05 10:49:07,265 exiting 2019-03-05 10:49:11,040 Error: failed to set lpadmin and lpinfo commands Traceback (most recent call last): File "/usr/lib64/python2.7/site-packages/xpra/server/mixins/fileprint_server.py", line 97, in init_printing printer_definitions = pycups_printing.validate_setup() File "/usr/lib64/python2.7/site-packages/xpra/platform/pycups_printing.py", line 238, in validate_setup defs = get_printer_definitions() File "/usr/lib64/python2.7/site-packages/xpra/platform/pycups_printing.py", line 206, in get_printer_definitions drv = get_lpinfo_drv(x) File "/usr/lib64/python2.7/site-packages/xpra/platform/pycups_printing.py", line 127, in get_lpinfo_drv cr = getChildReaper() File "/usr/lib64/python2.7/site-packages/xpra/child_reaper.py", line 29, in getChildReaper singleton = ChildReaper() File "/usr/lib64/python2.7/site-packages/xpra/child_reaper.py", line 90, in __init__ signal.signal(signal.SIGCHLD, self.sigchld) ValueError: signal only works in main thread
Fixed in r21970.
this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/2192