Poor image quality 1 of 3 monitors, Radeon HD 6850

ttlnewbie

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Aug 17, 2009
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Hi All,

Looking to the community to help me with this one.

Over the last month or so I've had intermittently poor video quality with my 3-monitor setup. I have 3 x Dell 2407WFP monitors running at 1920 x 1200 off of a singleSapphire 100315L Radeon HD 6850, 1GB. 2 monitors running via DVI, 1 via "display port."

I'm usually doing office tasks, using one monitor for a TV/streaming video, etc. It has worked our great for me.

Recently been having 1 specific monitor show poor quality (see pictures below.). Image is visible, just poor quality. Tried easy stuff - swapped cables around, etc. Seemed to be one specific monitor, so I purchased a new (used) same model. Interestingly, the problem went away before the replacement monitor arrived. The issue returned last night. So today I installed the new monitor -- plugged in, works fine ... except now the poor image quality moved to another monitor. :) I'm left with the thought that the only way for this to happen is if the graphics card is bad.

So I guess I have a 2 part question:

1- Any suggestions or anything I can do to resolve this? Is this a known issue with this model or driver version (running latest non-beta). I googled a bit but found nothing.

2- If you agree it's a card issue, can you recommend a good card for replacement? Again I don't really do any gaming - just use it for web surfing, personal finance, streaming video, etc. I don't think I need a top of the line card, but something that can run 3 monitors is big for me.

PIctures:

20151031_141256.jpg


20151031_141307_001.jpg


20151031_141316.jpg



Thanks!

ttl


 

Xtergo

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May 4, 2015
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I think this happens when a card is not able to handle the load of running 3x the 1080p monitor something similar happened to me when i tried to run an hd tv and 2 monitor on a low end card. if you want to change the card what is you budget and what is the most demanding thing that you might want to run in the future. I temporary fix is to lower the resolution the reduce load.

you might want to check the gpu load and can you list all the specs u have like processor ram ect ..
 

ttlnewbie

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Thanks for the reply.

If I have to change, budget isn't a big issue. I've always used mid-level cards as I'm not really a gamer. I'd say $150-200ish. I don't like to spend money just to spend money .... :)

You could be right, but wouldn't it be weird that it worked for at least 2+ years, now all of a sudden becoming an issue? And that it appeared, went away, and now re-appeared?

Adjusted the resolutions, no change. Turned off one of the other monitors, also no change.

Downloaded GPu-Z to get info for you. I can't say I know what all of these mean ...

GPU is Barts. 40nm. Die Size 255.
Total memory is 1GB (1024mb), bandwidth 128GB, driver 15.7.1 Catalyst for Win764
GPU load is literally 0-5%. Core clock ranges 200-775, memory clock 1000
Temp 57C, fan 40%
Memory useage 271mb dedicated, 71mb dynamic


Is there more that would be helpful to you?



 

ttlnewbie

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Whoops ... didn't mean to "select as best." Sorry about that. :) The PSU is an Antec 750w. Should be more than enough for what I have running ....

That said, it resolved itself randomly over the weekend. Don't know what to make of that. I'm sure it will be back ... I think eventually I'm going to have to swap out the card.

Any suggestions on a new card that would drive 3 monitors for non-gaming use?
 

ttlnewbie

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Yeah, I understand. Anything else you think I should try to diagnose it?

Thanks for the info on the gtx 950. I'll check that out.