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Video cards disappeared in dxdiag?


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#1
ChrisDM

ChrisDM

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Hey there. I'm new to the Geeks to go community, so just gonna say HI before I start this thing. :] You can all just call me Chris by the way.

Anyway, here's my issue. The other night on my laptop (Asus W90Vp-X1) that runs Vista Home Premium 64-bit, I attempted to install new ATI drivers to my video cards. Now, the cards I have (ATI Mobility Radeon HD 4870 X2) don't exactly have official drivers for them because they are considered desktop cards within a laptop (even though they say Mobility) at least I think. Therefore, I was told to choose to install the drivers for the 4800 series of cards.

Before I did this, I made my downfall of a mistake and uninstalled my other drivers without creating a restore point or anything. I then rebooted and installed the new drivers and from that point forward everything was screwed up. My max resolution is now 1400 x 1050 instead of 1920 x 1080, I tried to install a new DirectX as well as the ATI drivers and still nothing has worked. Within my dxdiag though, it seems to not be able to pick up what cards I have as seen here - http://farm3.static....b45e211f0_b.jpg

And it also seems to have installed DirectX 11 onto my computer. Not sure my cards are very compatible with that! Pretty sure they're only compatible with DirectX 10.1 - http://farm3.static....eab6aa932_b.jpg

Oh, and I'm pretty sure my cards have Crossfire, but my computer only shows me one display instead of two like it used to (I'm 90% sure it used to show two displays), seen here - http://farm3.static....080a97bb4_b.jpg

The computer also seems to realize there is an issue as there are yellow exclamation marks in my Device Manager next to "Display Adapters - Standard VGA Graphics Adapter" and "Other devices - Unknown device" as seen here - http://farm3.static....562458069_b.jpg

Sorry if this post is a tad long. I just tried to be as descriptive as possible. Any help would be GREATLY appreciated considering I do ALL my gaming on this beast and I am kind of a big gamer. 'Tis the season as well hahaha. :] Thank you all! :)

Edited by ChrisDM, 19 November 2009 - 09:55 AM.

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#2
othersteve

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Hey there Chris,

Good morning and welcome to G2G. :)

Here's what I'd recommend you try next:

1. Uninstall the driver via Control Panel > Programs and Features first.
2. Download Driver Cleaner Pro - Freeware Version and remove all remnants of the driver install if possible.
3. Download the latest driver from here and install.

I hope this helps! :)

~os
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#3
ChrisDM

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Thanks so much for the help, OtherSteve. Any suggestions as to how I can downgrade my Direct X back to 10.1? I have no idea why the auto-installer chose Direct X 11 when it's clearly not compatible hahaha. =[
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#4
othersteve

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Hey there Chris,

You shouldn't need to; 11 is backwards-compatible with all 10 hardware from what I understand.

If you are receiving DX errors while playing games, you might try reinstalling the redistributable package, which replenishes some of the legacy DLLs I believe necessary to run some applications:

http://www.microsoft...;displaylang=en

I hope this helps.

~os

Edited by othersteve, 21 November 2009 - 12:54 PM.

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