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how to change refresh rate systemwide?


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I am using a HP L1925 flat screen. The MCC sets the refesh rate to 75 Hz for a resolution of 1280x1024. It is no problem now to change the refresh rate for each user to 60Hz using the KDE control center. But is it also possible to change the requresh rate systemwide for all users, including the KDM-screen?

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you could manually edit the etc/X11/xorg.conf file. look for the following section.......


Section "Monitor"

    Identifier "monitor1"

    VendorName "Generic"

    ModelName "1024x768 @ 70 Hz"

    HorizSync 31.5-57.0

    VertRefresh 50-70


just make sure you set it within your monitor's parameters. you can easily fry a monitor if you try to set it beyond what it's capable of.



Edited by chris z
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So there is no systemwide Mandrake GUI-Tool like KDE offers it for the user settings? There you just change the settings with a drop-down field from 75Hz to 60 Hz. To include this in the systemwide MCC would certainly be a good thing.


You can set a fixed refresh rate by entering only one frequency instead of a range, as shown in the post of chrisz.


For example, if you want a 75 Hz rate system wide, you just change the line for:


VertRefresh 75-75

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