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I've inherited a server running on Ubuntu which has a keyboard connected, but no monitor.
Now there's been a network problem and I'm currently unable to connect via ssh (not even ping works). Still, calculations started by someone else might be running. For diagnosis, I plugged a monitor to vga, but this monitor gets no signal and stays black.
How can I activate the monitor? I don't need a GUI, seeing bash would already be OK.

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It would be helpful to share exactly what server hardware you are running on, what version of Ubuntu, etc. – Bert May 13 '13 at 14:01
As I said, at the moment I can't get any information out of it. I am not the one who configured it, so I don't know details. The whole thing is from end 2010. Hardware is an ordinary cheap computer. – B Fuchs May 13 '13 at 14:03
I can again ssh to that computer and see it's up and working. Therefore 1) I do not need to plug a monitor anymore, at least not now. 2) I can give more precise information: The OS is ubuntu server 10.04.3 LTS – B Fuchs May 13 '13 at 14:44
Did you ever resolve this? – G-Wiz Nov 9 '13 at 10:23

Pressing a key on the keyboard may take the display out of sleep mode and cause something to appear on the screen. Also, try switching virtual terminals using ctrl-alt-f1, ctrl-alt-f2, etc.

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sadly, this didn't work. – B Fuchs May 13 '13 at 13:45

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