Version: unspecified (using KDE 4.6.1) OS: Linux After setting gamma to 0.85, kgammarc looks like this: [ConfigFile] use=kgammarc [Screen 0] bgamma=0.85 ggamma=0.85 rgamma=0.85 [SyncBox] sync=no After logout or reboot the file is reset (no gamma information) and gamma is set to the default value (1.0 1.0 1.0) acording to xgamma and the systemsettings module. Removing write permission from .kde4/share/config/kgammarc after setting gamma to 0.85 fixes the problem. Reproducible: Always Steps to Reproduce: 1. Set gamma to 0.85 using systemsettings. 2. rebot 3. Check gamma in systemsettings. Actual Results: Gamma was back to 1.0 after reboot. Expected Results: Gamma at 0.85 after reboot.
The overwrite of kgammarc occurs on logout/reboot, not during login. When removing write permission on kgammarc and rebooting, system settings reports the gamma value from kgammarc (0.85), but "xgamma -gamma" reports 1.0 and based on the actual brigthnes the gamma apears to be 1.0.
*** This bug has been marked as a duplicate of bug 218668 ***