Thanks again Bernhard! > As I could not get it crashing by just doing upgrades, I tried to > inspect a running process and got into a source file named "screen.c" > and functions related to screen resolution. Then I tried to change > resolution and the xfdesktop got into a similar backtrace still without > crashing. Therefore I asked if your processes would crash, if you > try changing the resolution. >
No, I don't think it had anything to do with changing resolution. I tried changing my original resolution to several others, 1680*1050, 1600*1024 and 1400*1050, none of them caused a coredump. > > I found a similar report was reported by another user in > https://bugs.debian.org/933202 > Seems like what I am experincing. I'll keep an eye on it. Kind regards, Jun