Finally got Opensuse to work from a Live CD from a magazine.
I have changed the display using the gamma settings - even system wide with root password - yet when the pc is started from cold next day the settings have reverted.
This is KDE also.
Any ideas - can i manually chnage for permanent setting of gamma requirements - or are these settings updated to default after a reboot ?.
Opensuse 13.1 seems to be reverting to the original gamma settings.
I searched for gamma in the file system and located my home directory settings which do change.
/home/user/.kde4/share/config/kgammarc
This seems to be the global setting which is changing when i use the desktop access to change, but is reverting to a default, even when selecting system wide setting previously and saving.
You should add the “Gamma” option to the “Monitor” section.
To do that without an xorg.conf, create a file /etc/X11/xorg.conf.d/50-mymonitor.conf (or edit the existing /etc/X11/xorg.conf.d/50-monitor.conf) like this:
You should specify your desired values there of course, you can either use one value or 3 values.
From “man xorg.conf”:
**Gamma** gamma-value
**Gamma** red-gamma green-gamma blue-gamma
This is an optional entry that can be used to specify the gamma
correction for the monitor. It may be specified as either a
single value or as three separate RGB values. The values should
be in the range 0.1 to 10.0, and the default is 1.0. Not all
drivers are capable of using this information.
Then you also need to reference this from a “Screen” section, so create /etc/X11/xorg.conf.d/50-myscreen.conf (or edit the existing /etc/X11/xorg.conf.d/50-screen.conf) like this:
I rebooted the PC and the change did not take effect until i opened up the display and monitor KDE options and only when selecting gamma did the screen change settings.
Yes.
And it works fine here with those 2 files (I copy/pasted the contents).
What does this say after boot? (before you enter systemsettings)
xrandr --verbose | grep Gamma
Can you set the Gamma value with this line?
xrandr --output VGA1 --gamma 0.7:0.7:0.7
You have to change the name of the display (“VGA1”) if necessary, of course.
If that works (it should, since KDE’s Gamma settings do nothing else I think), you could create a script in ~/.kde4/env/ with that line to set the Gamma on login.
In the service manager - system setting - Display Management is not running - so should this be set for startup initialisation ?. Thanks.
No.
I meant to disable the “KScreen 2” service in the lower list.
But I just tried it myself now, and this doesn’t seem to interfere with the Gamma setting, so you shouldn’t have to disable it.
PS: Have you maybe created an /etc/X11/xorg.conf file in the meantime?
That would explain why those 2 files didn’t work for you, as /etc/X11/xorg.conf.d/ is ignored then.
In that case xf86gamma, resp. “Save settings system wide” in KDE’s Gamma settings, should work though. (You may have to run it as root with “kdesu systemsettings”)
If not, remove /etc/X11/xorg.conf and the 2 files in /etc/X11/xorg.conf.d/ should take effect.