Couple of issues with my Gigabyte 4870 1gb

THERESONATOR

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Jan 2, 2008
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When I first got my card I had some trouble making the resolution optimal for my screen. I have a Samsung 2032mw, which runs optimally at 1680x1050 @ 60hz. However my display settings are being somewhat fickle. I have managed to get 1680x1050 to show up a couple of times by editing the registry, but one or two reboots down the line the progression is back to 1440x900 -> 1600x1200 which my monitor can't display. I've done all the reinstalling of drivers etc. I don't run CCC because that was getting in the way (I located the drivers on the CD and used Windows to install).

So I have had to make do with 1440x900 which is actually unsupported by this monitor. Sometimes I boot up and the monitor refuses to display anything and just says "Unsupported Mode, Optimal Mode 1680x1050". An unplug of the Samsung and plug in of my old Dell 17" and another unplug and plug back into the Samsung, and its fine again. I tried to force the display settings to show 1680x1050 using the registry thanks to a tip from a Google search, but it doesn't work anymore.

A strange thing I notice is also that there are two monitors displayed on the Display Settings, when I only have one. The driver being shown on my Device Manager for my monitor is NOT the Samsung, but instead "Generic Non-PnP Monitor". Despite installing the Samsung driver, this thing still shows up like that and refuses to go away. Maybe its not the the graphics card itself, but the issue with the monitor driver. Like I said, the driver Windows is using works fine with my old Dell 17", no problem.

Another issue that is definately related to the card imo, is the weird dots showing up in Oblivion. I'm not sure this is the case for any other game, but sometimes these dots show up on screen. I have a feeling the term for this is "Microstuttering" which I've read in a few places (but didnt know what it meant). I run Oblivion on the max resolution, 8x AA, Bloom, maximum view distance and shadows, and it runs smoothly at 60fps (no lag whatsoever). Is this an issue that ATI cards have with running high AntiAliasing? Or something else? Any fixes for this?

Thanks in advance.
 

Qbah

Diamond Member
Oct 18, 2005
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Monitor drivers in Vista? Those died a long time ago... like Win98SE times.

Try using CCC first. It's really not so bad. It has everything a typical user wants.
 

THERESONATOR

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Jan 2, 2008
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OK even though I had already done this before, I resinstalled both sets of drivers, and hey presto, 1680x1050 shows up again. I will report back should it become fickle oncemore and show up with the old settings.

Now the other issue still needs to be addressed, regarding "weird dots" lol
 

chizow

Diamond Member
Jun 26, 2001
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Originally posted by: THERESONATOR
Another issue that is definately related to the card imo, is the weird dots showing up in Oblivion. I'm not sure this is the case for any other game, but sometimes these dots show up on screen. I have a feeling the term for this is "Microstuttering" which I've read in a few places (but didnt know what it meant). I run Oblivion on the max resolution, 8x AA, Bloom, maximum view distance and shadows, and it runs smoothly at 60fps (no lag whatsoever). Is this an issue that ATI cards have with running high AntiAliasing? Or something else? Any fixes for this?

Thanks in advance.
Its not microstutter, if anything is artifacting. Can you screenshot it and post it? You can use skydrive.live.com for free and easy hosting, just sign up for hotmail or msn. Monitor your temps in Oblivion and see if that's causing the problem (GPU-Z has a logging feature). If you see high temps, you can try turning up fan speed to compensate. If none of that solves the artifacting you may want to consider RMA. Random dots and artifacting sound like it could be a video card RAM problem.
 

THERESONATOR

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Jan 2, 2008
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Its really weird. It reverted back to having the choice between 1440x900 and 1600x1200. This is the "fickle" that i meant. Now uninstalling and reinstalling drivers aint working. Its happening every time I reboot. If I put it on Sleep, its fine, but Reboot, OH NO.

I WANT 1680x1050!
 

THERESONATOR

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Jan 2, 2008
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OK I haven't yet rebooted BUT: I downloaded the latest drivers - like wow - they updated the drivers since I started this thread? What? Anyway, I decided to use Catalyst Control Centre and WOW. Eventually I worked out that if you click Monitor Properties, and then uncheck the Use Extended Display ID Data (EDID) and change Max Res to 1680x1050, and click Apply then you get what you want.