Experiencing this on Xubuntu 14.10 with the ATI proprietary driver with Radeon 270X 2GB. Right now the X server is over 6GB:
root 3444 10.6 44.3 6303840 5457648 tty7 Ss+ Mar14 238:46 /usr/bin/X -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch Running Firefox, Thunderbird, plenty of terminals, and things like Cadsoft Eagle (5.12), Saleae Logic (1.1.18), LibreOffice, Evince, etc. Killed *ALL* of them and practically no change in X usage. ** Also affects: fglrx-driver (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1272338 Title: Xorg memory leak on trusty To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-driver/+bug/1272338/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs