I get the same error messages, regardless if I open Psensor as either a user or root.
comp@AbNormal:~$ sudo -s psensor [sudo] password for comp:[2019-11-02T10:25:17] [ERR] nvctrl: Failed to retrieve NVIDIA information.(psensor:24553): Gdk-CRITICAL **: 06:25:18.169: gdk_window_thaw_toplevel_updates: assertion 'window->update_and_descendants_freeze_count > 0' failed
Psensor worked correctly in v-9.x. Please advise. Thanks in advance. -- Stephen P. Molnar, Ph.D. www.molecular-modeling.net 614.312.7528 (c) Skype: smolnar1