Comment 0 for bug 1969815

I've just updated to 22.04 on 3x boxes: 2x laptops and 1x tower. Laptops went well as they are standard (note to self: next time upgrade one using a USB docking station+as many externally attached devices as possible) and only use wifi.

For the tower: this is the dual-screen portrait system I have been opening up defects for months now. After reboot everything went well until TTY7 tried displaying but never did.

What happened is that both of my screens started blinking blank for =<1 second . Within 1 second both screens went from being full dark/energy saver mode back to (what seems to me) a X black background with only the mouse cursor floating around.

Accessing other TTYs was also impossible as even though pressing CTRL+ALT+F2 would show a login prompt that within =<1 second, the screens tilted and changed mode again and only a cursor symbol(_) was at the top-hand-left side blinking.

That behavior held true for all TTYs.

Both of my screens are the same model and use HDMI.

Solution was: unplug one of the two monitor and automagically jammy's login screen popped up.

If I replug that 2nd monitor while I am inside a working TTY7 session then the same (original) problem happens in which I cannot use any of the screens and when I re-unplug one of the two screens again I am re-back again at the jammy login having lost my working session.

I have attached my ~/.config/monitors.xml