After installing a new version of xorg-x11-server, it started crashing every time I started chromium. The effect was consistent: Every time I started the browser, the screen would go black and I’d be back in the login screen.
Looking into /var/log/kdm.log, I saw these lines:
Backtrace: 0: /usr/bin/Xorg (xorg_backtrace+0x36) [0x564616] 1: /usr/bin/Xorg (0x400000+0x168349) [0x568349] 2: /lib64/libpthread.so.0 (0x7f1d1618b000+0xf140) [0x7f1d1619a140]Segmentation fault at address (nil)
The reason for the error was that the xorg-x11-server contains the file /usr/lib64/xorg/modules/extensions/libglx.so which is needed for the NVIDIA driver but the NVIDIA driver has its own, special version.
The fix for the error was to reinstall the NVIDIA driver again.