How to set the screen resolution and gamma value?

Volker Wysk pf3 at
Fri Jan 18 16:03:53 GMT 2013

Am Mittwoch, 16. Januar 2013, 16:00:25 schrieb Kevin Krammer:
> This looks like there were some changes in your system base setup, i.e. not
> related to the KDE update itself.
> As we can see here the Xserver reports that it can only do one resolution,
> so any KDE tool can not offer anything else.

Yes, see my answer to Felix Miata.

> > A related problem is, that the gamma value of the screen can't be set any
> > longer. In KDE 4.4, I've set it in /etc/X11/xorg.conf:
> [snip]
> > This no longer works. In the system settings (Systemeinstellungen) I
> > haven't found a control to set the gamma value.
> This again looks like some change unrelated to the KDE update is at fault
> but more likely something related to the Xserver (or display driver, etc).

I will try some more with xorg.conf.

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