Might this be related? https://bugzilla.redhat.com/show_bug.cgi?id=1306841 On 10/27/2016 08:51 AM, Valentin B wrote: > 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!