Hello!
I have a Qubes certified laptop (Novacustom V56), and using Qubes 4.2.4 with kernel-latest, and the latest updates applied, with a rather default configuration - no experimental modifications etc. Just a few days ago, I started having weird issues with the default window manager. Some things I have noticed:
- When I open an application, the borders for the window are missing, including the Minimize, Maximize and Close buttons. The visual contents of the application itself are visible and usable.
- The visual contents of the application will overlap with the main toolbar of dom0, so I can no longer see the Dom0 menu, the time widget, the Qubes widget, etc… I believe this was not possible before the issues started happening - i.e. the dom0 toolbar at the top was always visible.
- Commands such as Alt+F4 are not working for closing the window - I have to quit the application by going to the appropriate menu option within the application itself.
- Random widgets in the dom0 toolbar are missing after restart. For example, right now I can’t see the widget for the network. After the previous restart, I could see the network widget, but the clipboard widget was glitching out (instead of the normal icon, it was displaying some random characters).
I am really not sure where to start debugging this issue. Any hints? Is this a known recent issue? Which logs I could look at?
UPDATE
Looks like this is a known issue: Colored window borders and title bar disappearing · Issue #6152 · QubesOS/qubes-issues · GitHub. The workaround that worked for me is xfwm4 --replace, which was posted in that issue.