have a new Alienware m16 laptop I am dual-booting with Ubuntu Cinamon 22.04 and Windows 11. AMD Ryzen 7 7745HX processor, and NVIDIA GeForce RTX 4060 GPU.
I have an issue where the screen will start to flicker, then become pixilated. Shortly after this starts to happen, the system will freeze up and I have to shut down by holding the power button.
The sequence generally is:
- The screen starts to flicker.
- Shortly thereafter, the application window will become pixilated and semi-transparent (the desktop is visible through it). This usually starts in a single window, if I switch to a different one it is usually (briefly) OK.
- The same thing happens to other open windows.
- The entire screen becomes pixilated, and progresses to either a black screen or a couple of large blocks of solid colours. At this time, the keyboard and mouse become unresponsive and I have to power down by holding the power button.
I am currently using Driver Version 545.29.06, but I have tried several. This version seems to be the most stable I have tried so far.
The issue does not occur when I boot into Windows.
There is a thread on Ubuntu forums with a few details on things I have tried at Display issue with Ubuntu Cinamon on Alienware m16
Thanks for any help anyone can provide.