Hi,

On a machine with the intel integrated card, more specifically

00:02.0 VGA compatible controller: Intel Corporation Sky Lake Integrated
Graphics (rev 06)

seem to be some issues with recognizing the monitor properties.

Running `xrandr`  the following output is displayed:

xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1024 x 768, current 1024 x 768, maximum 1024 x 768
default connected primary 1024x768+0+0 0mm x 0mm
   1024x768      76.00*


I've managed to solve the problem using the following steps  as also
explained here:
http://www.linuxquestions.org/questions/centos-111/cannot-change-screen-resolution-on-unknown-display-in-centos7-4175583712/


rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm
yum install yum-plugin-fastestmirror
yum --enablerepo=elrepo-kernel install kernel-ml


I actually would like to avoid using kernel-ml  since this doesn't
provide any warranty concerning security and system stability in
general.  Has anyone been able to solve the problem differently?

Thanks!
-- 

Valentin Bajrami
Kapteyn Astronomical Institute
University of Groningen
Postbus 800
NL-9700 AV Groningen
The Netherlands

Phone:    +31-(0)50-3634068

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