is On several occasions I have noticed that Ubuntu offers after the installation often only 60Hz refresh rate. For LCD monitors, this is ideal, for CRT monitors but not enough. Possible reasons for niedirig to maximum vertical frequency detected in CRT monitors, the lack of support from DDC older monitors or an Intel onboard graphics are not reporting the best graphics mode.
The refresh rate can be improved in general by adapting the Xserver configuration. This one changes by pressing Ctrl Alt F1 in a terminal console and logs in with an admin account. The following command is then repeated the Xserver configuration:
dpkg-reconfigure xserver-xorg are based on the already existing configuration made a lot of questions where you almost should always take the default. Only should the automatic detection of the resolutions do not select one. Here you choose the best "medium" and follow the instructions. Are then queried by the Xserver to load modules, you can switch out the module ddc , so no * before ddc appears. The old configuration file ("/ etc/X11/xorg.conf") is automatically backed up before overwriting.
order for the new configuration of Xserver must be restarted. This switch back with Ctrl Alt F7 in the background in the current X session, close all running programs and ends the Xserver with CTRL ALT backspace . The Xserver is then launched from Ubuntu again.
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