Reinstalled windows. Second Monitor now flickering randomly

Jono · 5 Jun 2011 at 16:40

Hi,

I had to reinstall windows because my hard drive died. I also downloaded new catalyst drivers. I'm not sure if this is the cause of things going weird.

Anyway, my secondary monitor randomly flickers, just portions of the screen, not the whole thing. I have no idea why. it didn't do it this morning before my PC died. It seems to happen most when another window pops up (e.g. msn notification... or when there's some flash type advert maybe in a web browser on another screen... I think it also does it for no obvious reason... but it's mostly when another window pops up.

What could it be, anything to check?

It's plugged into a Radeon 5850. I've tried it in both DVI ports - The other monitor doesn't flicker at all in either. The problem monitor flickers in both.

It's running @ 1280 x 1024 @ 60Hz, which should be fine...

antipesto93 · 5 Jun 2011 at 17:18

This is a common problem when the card under clocks to save power,
are you using MSI afterburner to overclock?
or are you using Catalyst controll center to overclock?

if you ARE using CCC to overclock, then use MSI afterburner.
If you are NOT overclocking at all, Get MSI afterbuner and just overclock by like 1mhz, this will atleast stop it from downclocking

OR if you look at google, there is a way of editing the overclocking profile in CCC to increase the minimum frequency

(sorry tfor the rushed piost)

Jono · 5 Jun 2011 at 18:32

Ooh that (whatever I did)... seems to have fixed it. The MSI thing alone didn't work, but I disabled OCing entirely - not bothered by it, seems to have gone away.

Thanks very much!

=XDC=FluphyBunny · 5 Jun 2011 at 19:39

I've just tried a dual monitor setup as I'm busy learning Photoshop (with an old monitor I had lying round) and discovered this well known problem (why hasn't ATI fixed this?) I tried setting the 2D/3D profiles in afterburner which semed to work but as soon as i tried to play a game my main monitor is now flickering! Have since unplugged the secondary monitor after a lot of wasted time

Shocking something this simple should present any problems.

Orcvader · 5 Jun 2011 at 23:27

It happens a lot when something uses UVD. I've noticed it quite a lot when I using using a 5770, and apparantly many others have noticed the same with other 5000 series cards. For some reason UVD forces the card to go into UVD clocks, which seems to override any overclock profiles. If you disable hardware acceleration this can avoid the problem.

Using a 6850 now, haven't noticed any problems with it. Maybe better UVD support?