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Display Disconnecting

S

schmectite

n00b
Joined
Aug 13, 2013
Messages
10
For the past few months, my display will occasionally refuse to reestablish a connection to the system after being turned on. Coming from a display-off state (with the system otherwise on), it stays on a black screen until I unplug it from the graphics card and plug it back in. This does not happen every time I power on the display - maybe once or twice a week at most.

I thought it was a gpu issue, so I convinced XFX to send me a warranty replacement for my card, but the issue has persisted onto the new one. I don't think it's the display - when this occurs, it shows the amber status light, which indicates no signal from the PC (typically shown when in sleep mode) and it immediately shows a picture as soon as it is disconnected and reconnected to the gpu.

That leaves, as far as I can tell, either the motherboard or the PSU as culprits. I'm leaning towards the motherboard, since I know it has some issues (at least one bad PCI-E x1 slot), but I was wondering if anyone had any idea of how to narrow it down.

System specs:

i3-2100
AsRock Z68 Pro Gen3
XFX HD7850 2GB
PC Power & Cooling Silencer Mk III 500W
Creative SoundBlaster Z
Blu-Ray Reader
HDD x2
SSD x1

Nothing overclocked, temps are normal. System is a year and a half old, except for the graphics card (1 month) and the SSD (1 year).
 
Try a different monitor.
Try your video card in another PC.
Try a completely different video card in your PC.
 
Don't have another monitor, another PC, or an alternate video card. Technically it is a completely different card though, unless XFX went to the trouble of fixing the stability of my old card and slapping a new serial number on it.

Also difficult to test on alternate equipment anyways since the issue is intermittent with a fairly long average recurrence interval.
 
Can you try a different DVI cable? If it is a DVI cable, then try using a VGA cable or another port that the monitor supports. If the monitor has HDMI then I'd try HDMI instead of the VGA port assuming the monitor has a VGA port. Pretty sure the GPU only has HDMI and DVI, so in order to use a VGA cable you'll need to use a DVI > VGA adapter.

I had a similar issue with one of my monitors. It only happened when using the DVI connection on the display. Using the VGA connection on the display solved the resume issue.
 
I'll give that a shot. Monitor's only DVI/VGA, so I'll need to pick up an adapter, but they're cheap.
 
Dangman said:
Try a different monitor.
Try your video card in another PC.
Try a completely different video card in your PC.
Click to expand...


Based on my own experiences, you might be experiencing problems with the power supply in your monitor. Do a google search for your monitor and see what problems have been reported. Also, it's amazing (still) to see how many repair videos are posted on YouTube.
 
Wouldn't unplugging the power and/or turning the display off then back on "solve" the issue if it was relate to the monitors power supply? By solve I mean it should display a picture/image instead of just a blank screen. Similar to how disconnecting the monitor's display cable fixes the issue.
 
I haven't tried unplugging the monitor's PSU, but cycling the power button on the monitor does nothing to fix it. The monitor still powers on (I get the Acer logo), but then the screen stays black rather than displaying the picture and the status light is amber (the color it displays when the monitor is asleep/has no signal from the computer)
 
My issue solved itself by turning the monitor off then back on using the power button. While this was still annoying switching the connection from DVI to HDMI solved the issue completely. I don't use that monitor for the HTPC anymore, but I do use it for the temporary gaming rig. It's plugged in via DVI and has no issues resuming from standby.

I can say that using a monitor for a TV is teh suck. It's so annoying when I just want to turn the monitor (TV) off and/or change it's input when I am laying in bed and/or sitting at the foot of my bed watching TV. I have to get up and manually make the changes using the monitors buttons. First world problems, right?
 
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