Version: unspecified (using KDE 4.5.3) OS: Linux In kubuntu Lucid with kde 4.5.3 my Kdm ( login screen ) goes to standby after 10 minutes. In system settings -> power management -> I turned off standby, suspend, etc). In xorg.conf: Section "Monitor" # HorizSync source: edid, VertRefresh source: edid Identifier "Monitor0" VendorName "Unknown" ModelName "LG Electronics 500G" HorizSync 30.0 - 54.0 VertRefresh 50.0 - 120.0 Option "DPMS" "false" EndSection Section "Device" Identifier "Device0" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "GeForce 7025 / nForce 630a" Option "DPMS" "false" EndSection $: xset q DPMS (Energy Star): Standby: 0 Suspend: 0 Off: 0 DPMS is Enabled Monitor is On But kdm still keep going to standby. Reproducible: Always Steps to Reproduce: Just leave in login screen for 10 minutes Expected Results: Disable standby in login screen.
KDM is unmaintained and not used in KDE Plasma 5. SDDM is the login manager used in KDE Plasma 5. If you still have this same issue with SDDM, please file an issue on the SDDM bugtracker (after doing a search for existing issues first!): https://github.com/sddm/sddm/issues/