Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Info - Gfx Card: 7850 TV: Element 55 inch OS: windows 7 64 bit

I'm using 1080p/HDMI.

When I turn my computer on, I get 'no signal' all the way until the log in screen, because apparently the BIOS/start up routine isn't being displayed in 1080p, but that doesn't seem right. When I first got my computer, I had no problem setting stuff up in the BIOS screen.

Now, when I start my computer from being 'asleep', it constantly flashes to 'no signal' for about 5 minutes and then it stops and never does it again the entire time I'm using it (until I put it to sleep again).

Does anyone know what could be causing this? I feel like my TV might have faulty HDMI ports, but I'm not sure. When I play games, any time the resolution goes below 1920x1080, I get 'no signal'. Some example of games: The Sims 3 and Wizardry Online. I can't even play them and the only way I can get my display back is to Alt+Tab until I'm on my desktop.

share|improve this question
    
Have you checked the cables or tried different ones? –  Brad Patton Feb 15 '13 at 15:20

2 Answers 2

Try uninstalling/reinstalling ATI drivers from http://support.amd.com/us/gpudownload/Pages/index.aspx

There's often a BIOS option for selecting a default display adapter. May want to make sure that is set correctly along with the various power settings.

share|improve this answer
    
im using a radeon hd 7870 lol –  Tar Feb 16 '13 at 2:04
    
oops, fixed it. –  Enigma Feb 17 '13 at 0:28

Perhaps you have blown capacitors in your monitor. Flashing screens can be a symptom of that. I would recommend you try software fixes before opening up your monitor though.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.