Dear Friends,

We are facing an issue with our servers, that is we are un-able to get remote console on our server.(console is opening but nothing is being displayed.)
We are using IBM chassis, We've tried to updating to latest firmware available with IBM.
If i am not mistaken issue most likely is with video mode rendered.
from what I've understood IBM Chassis supports certain video mode only, So I wanted to try and configure my Centos to run on one of these given video modes (1024x786 60Hz, 70Hz, 75Hz) or (800x600 60Hz, 70Hz, 75Hz)
I tried searching over google for this but I no luck finding any good source so far.
Besides anyone else faced or facing similar issue may guide me with their progress on this.

Other Information which might be useful for debugging.

OS :- CentOS Linux release 7.2.1511
Kernel :- 3.10.0-514.2.2.el7.x86_64
VGA adapter :-
$ sudo lspci| grep VGA
07:00.0 VGA compatible controller: Matrox Electronics Systems Ltd. MGA G200EV

In the mean while I will continue finding solution for this from Operating system end.

Thank you.
Regards

You don't list what server model you are using. Also you may want to go into the BIOS and enable at minimum 128MB video memory.

To resolve the issue try the following:

ssh to the server that is not in production and login as root then issue the following commands:

init 3

X -configure

cp /root/xorg.conf.new /etc/X11/xorg.conf

init 5

Now try the console to see if it shows a display.

If this fails please ssh to the server and post the last 500 lines of the file /var/log/Xorg.0.log

Dear Friends,
This has started working for some reasons, I am trying to figure out what exactly had happened back then.

@kentyler well servers are running without xserver package, Need to dig in what has been replaced.

Regards
Pushkar
(Linux Team)