I'm getting this now in kde after upgrading 14.04 kernel to 3.16 and the beta fglrx drivers to run it. Not sure if also at the time changing the desktop effects opengl render modes affected this (compositing==ogl3.1, qt graphics==native, scaling==accurate, vsync==auto). Took about 8 hours to climb to consuming 28gb of ram. :\
$ xrandr Screen 0: minimum 320 x 200, current 9600 x 1200, maximum 16384 x 16384 (5x 1920x1200 displays in eyefinity) $ plasma-desktop -v Qt: 4.8.6 KDE Development Platform: 4.13.3 Plasma Desktop Shell: 4.11.11 $ uname -a Linux host 3.16.7-031607-generic #201412010535 SMP Mon Dec 1 10:36:33 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux $ sudo dpkg -l | grep fglrx ii fglrx-amdcccle-updates 2:15.200-0ubuntu0.3 amd64 Catalyst Control Center for the AMD graphics accelerators rc fglrx-core 2:15.200-0ubuntu0.3 amd64 Minimal video driver for the AMD graphics accelerators ii fglrx-updates 2:15.200-0ubuntu0.3 amd64 Video driver for the AMD graphics accelerators ii fglrx-updates-core 2:15.200-0ubuntu0.3 amd64 Minimal video driver for the AMD graphics accelerators ii xvba-va-driver 0.7.8-1ubuntu3 amd64 XvBA-based backend for VA API (AMD fglrx implementation) -- 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