Late 2011 mini server - Loses Video Output Regularly?

[powerbook911]

I have a Late 2011 mini server. This is the one with 2GHZ Core i7 processor.

For quite some time now, 2-3x a week I have to hold the power button and hard shut down because I lose all video out. I have two displays (though I cut back to one seeing if that would help, it hasn't), and they lose all input signal. I just have the dark screens.

I think the hard shut downs are taking a toll too. Last week I had to do a restore and transfer all my settings from Time Machine because my Raid 0 setup on internal drives were too badly corrupted or something.


Any idea how to stop this issue of losing video out? It happens when I go to wake the computer back up after being away from it a while, it never comes back. It has happened for a long time (probably since new), though much more regularly as of late. It used to be maybe every 1 or 2 months, but now as I say a couple times a week at least.

Thanks for any advice.

 

[marzer]

I have a Late 2011 mini server. This is the one with 2GHZ Core i7 processor.

For quite some time now, 2-3x a week I have to hold the power button and hard shut down because I lose all video out. I have two displays (though I cut back to one seeing if that would help, it hasn't), and they lose all input signal. I just have the dark screens.

I think the hard shut downs are taking a toll too. Last week I had to do a restore and transfer all my settings from Time Machine because my Raid 0 setup on internal drives were too badly corrupted or something.


Any idea how to stop this issue of losing video out? It happens when I go to wake the computer back up after being away from it a while, it never comes back. It has happened for a long time (probably since new), though much more regularly as of late. It used to be maybe every 1 or 2 months, but now as I say a couple times a week at least.

Thanks for any advice.

That model has HDMI and Thunderbolt output. Were you able to confirm loss of video out on both those ports?

 

[powerbook911]

That model has HDMI and Thunderbolt output. Were you able to confirm loss of video out on both those ports?

Yes, it is on both both ports as until recently I was using both ports for dual displays. I've went down to one display to see if it helped, but it didn't. I tried both individually too. Thanks

 

[Donka]

Have you tried resetting MVRAM or SMC?
It may be an issue with the display getting stuck in sleep.

http://support.apple.com/kb/ht1379

http://support.apple.com/kb/ht3964