Applies to: Centrify Suite 2016.1 (DirectControl 5.3.1) on supported Ubuntu and Debian platforms
Problem: After installing DirectControl 5.3.1 on a Ubuntu machine and restarting it, the following error is displayed.
The system is running in low-graphics mode
Your screen, graphics cards, and input device settings could not be detected correctly. You will need to configure these yourself.
In addition, the /etc/lightdm/lightdm.conf file contains the following line:
\n[SeatDefaults]\ngreeter-show-manual-login=true\n
As a result, users are unable to login through GUI. Console and SSH logins are not affected.
Cause: This is caused by the generated lightdm.conf file which contains an invalid configuration parameter.
Workaround: Replace the incorrect configuration parameter with the following:
[SeatDefaults]
greeter-show-manual-login=true
A command similar to the following can also be deployed after installing DirectControl agent to workaround this issue:
sed -i 's/\\n/\n/g' /etc//lightdm/lightdm.conf