When opening a schematic file for the very first time in 6.0(.0), a pop-up asked if I wanted to “try accelerated graphics”.
I chose yes and the programme crashed. I tried this three times with the same result.
Choosing “Not now” allowed 6.0(.0) to open, and the pop-up no longer appears on opening and all is good so far.
Have earlier versions worked for you on the same system? What’s your system exactly? What graphics driver are you using? Can you choose accelerated from Preferences successfully after opening KiCad?
Have you rebooted after updating the graphics driver? I suppose you have updated recently because I had to do that, too, and before I did after updating the kernel, KiCad crashed.
Sorry missed that question:
Nvidia GK208B [GeForce GT710] graphics card.
As I said in the OP, the problem ONLY occurred the VERY FIRST time I opened 6.0.0.
The problem hasn’t occurred since, even after rebooting.
Also, other Linux downloads required a reboot, so the computer had rebooted before I first opened 6.0.0.
Possibly the only way to repeat the problem will be to delete 6.0.0 and download again.
Before you reinstall try checking if simply deleting kicad settings directory (probably in your ~/.config) will reproduce the issue. If you do reinstall delete the settings too.