Hello, I’ve had two occasions in which my screen appeared to break into several small rectangular blocks of maybe 1/2 inch tall by 2 inches wide and flash wildly. When this happens, I cannot use the mouse to get out of it and didn’t know what else to do except hold the power button down until the machine shut down. Maybe I’m just getting too old now but it is disturbing to look at the screen when this happens.
Is there a log that can be viewed to determine what took place? System Monitor shows I’m using KDE Plasma 5.26.3, Frameworks 5.99.0. My system is up to date. The machine is an HP Elite Desktop 800 16GB RAM 8 cores. If it matters the monitor is Samsung and is about four years old. I think the graphics card is a 530 something, nothing special just the standard card that comes with the machine.
I didn’t have much running, just working in Tcl and had Kate, Konsole, System Monitor, Dolphin, and Firefox and Brave browsers open also. I think the RAM used was around about 5 of the 15.4 GiB free.
I’m not implying it is an issue with Manjaro or KDE but would like to figure out the cause. I bought a refurbished machine a couple months ago and it may still be under warranty if this is due to a failing/faulty graphics card.
I have noticed that when the mouse passes over the icons in the lower left portion of the screen, there are times when the pop-ups start flashing rapidly. Moving the mouse around gets this to stop. I cannot make this happen anytime I choose to replicate it, but it just seems to take place at random times when I’m moving the mouse towards the K to open the menu. And I’ve noticed also a few times lately when the monitor goes completely black (as if turned off) for a second or two and then returns to normal display again and continues to operate normally.
Thank you for any guidance you may be able to provide.