Ok, I can see there are loads of similar questions regarding many distro upgrades but none of the solutions or suggestions have worked for me.
Problem
I upgraded my Dell XPS laptop from Ubuntu 20.04 to 20.10 via the distro upgrade option. Since doing so, I am having problems with my desktop whereby after auto-login, I end up with a black screen with only the mouse cursor and no window decorations, taskbar etc.
Comments
- My auto-login flashes the new standard Ubuntu background for about 5 seconds then the screen goes black.
- The mouse pointer is visible
- I can right click the black screen and start a terminal session, from where I can run applications from the command line
- Any windowed application I run has no title bar, appears in the top left corner of the screen and cannot be moved nor resized
- I created a new user and it logs in with a normal desktop in its initial state
- I have tried
dconf reset -f /
- I have tried
unity-tweak-tool --reset-unity
- I have tried renaming my entire
.config
folder and rebooting - If I change the scale with
xrandr
to 0.9x0.9, I can see a little bit of the "standard" background / wallpaper along the right side of the screen and the bottom of the screen - If I open display settings with
gnome-control-center display
for my usual account there are options for multiple screens, even though I only have the laptop screen enabled. In addition, there are no scale buttons on the scale settings section - If I do the same for the test account I created, I get a single desktop settings screen and 100% & 200% buttons in the scale section
- I have tried completely removing the installed NVIDIA drivers (460), with no effect
I am now out of ideas, I'm not sure which config file in my user home is driving this. I do have a backup that I took prior to the upgrade so I could roll back, but I'd rather solve the problem if possible.
Thanks for any advice. Obviously if I've missed detail or can provide further information, please advise.