Failed to find a suitable display device.

#0 - Oct. 18, 2010, 10:15 p.m.
Blizzard Post
I get this error when i try to start WoW.

Failed to find a suitable display device. Exiting Program.

I have the most up to date drivers for my card and DX 10. I have made no hardware changes on this computer for the last 3 years and i try and start WoW one day and i get this. I tried reinstalling WoW and still get the same error. I have an available dxdiag/msinfo printouts if needed.
#2 - Oct. 18, 2010, 10:20 p.m.
Blizzard Post
Oxblood,

Can you post some information about your computer? You can find this information in the Direct X Diagnostic Tool:

Click on Start
Click on Run
Type in: dxdiag (In Vista, type dxdiag in the search field)
Hit Enter or OK

Click on the Save All Information button at the bottom, and create a dxdiag text file, and copy and paste the first half of the dxdiag file (down to the "DirectX Components" section for XP, down to the "DirectShow Filters" section for Vista) into your reply.

#6 - Oct. 18, 2010, 10:32 p.m.
Blizzard Post
Oxblood,

I've never seen a dxdiag for the display device look quite like that. It's about 5 times too long. Could you use something like CCleaner or another of your choice to remove your current video driver and then re-install it?
#10 - Oct. 18, 2010, 10:59 p.m.
Blizzard Post
Oxblood,

Now you have older drivers installed from last year.

Can you install these and try the game again?

http://www.nvidia.com/object/win7-winvista-32bit-260.89-whql-driver.html
#25 - Oct. 19, 2010, 12:20 a.m.
Blizzard Post
Oxblood,

Sorry bout that, I had to go to lunch per company policy.

Anyway, can you post the gx.log file in your World of Warcraft\Logs folder?
#30 - Oct. 19, 2010, 12:36 a.m.
Blizzard Post
Oxblood,

Can you yank out one of the two cards? Something is telling the game you don't have a compatible video card.
#33 - Oct. 19, 2010, 12:46 a.m.
Blizzard Post
Oxblood,

You might also want to try reinstalling DirectX 10 (10.1 comes in Service Pack 1) or updating to DirectX 11(Service Pack 2)
#36 - Oct. 19, 2010, 1:13 a.m.
Blizzard Post
Oxblood,

I'm not real sure why you don't already have DirectX 11 as it comes with Service pack 2 which you reportedly have.


Can you check and see if you have this Windows Update installed: KB971512

If not, get it here: http://www.microsoft.com/downloads/en/details.aspx?FamilyId=e1199d12-5b23-4769-b1e0-210ee147ce15&displaylang=en
#38 - Oct. 19, 2010, 1:38 a.m.
Blizzard Post
Oxblood,

Can you reinstall Service Pack 2?

http://support.microsoft.com/kb/935791
#40 - Oct. 19, 2010, 2:06 a.m.
Blizzard Post
Oxblood,

I know that but I believe you need to reinstall it. That's how you'll get DirectX 11. It really seems like your issue is related to your current DirectX as in it may be corrupted in some way. See if you're able to uninstall Service Pack 2 first in add/remove programs.
#43 - Oct. 19, 2010, 8:08 p.m.
Blizzard Post
Oxblood,

I have no idea why you aren't getting DirectX 11 when updating to/reinstalling Service pack 2. You don't really need version 11 as your hardware won't use it, but I still suspect your issue is DirectX-related and see no reason you shouldn't be able to update to the latest version your OS supports.

I'm afraid the next suggestions are going to be a lot harder to implement. Try another video card and/or reload your OS. I hate to ever suggest reinstalling the OS but sometimes it's unavoidable. If you're able to, take out your current hard drive and put in a spare and install a fresh copy of the OS on it. That way, if it doesn't help, you can put back the original and be back where you started (apps, etc..)

For the video card, try any other card you have available. We're looking for a difference in the symptom mainly.