Maximum resolution not available

[pandemonium]

Just tried updating to the 13.8 beta drivers for my HD6870's in CF to check the frame time correction feature out and also see the improvements for FFXIV. Oddly, 2560x1440 wasn't an available option after updating the drivers for my Asus PB278Q. The highest available resolution for the desktop - or any applications - was 1920x1080.

So I tried going back to the official 13.4 drivers, and the same issue showed itself. Originally, I was still on 13.1. So I went back to 13.1 and the resolution is available again.

I've done a little googling and nothing is coming up with my problem, so it may be isolated to this monitor and series of GPU. I already sent in a bug report to AMD.

Anyone else experiencing this?

 

[VirtualLarry]

how is your monitor connected?

 

[pandemonium]

Sorry, had a busy few days.

HDMI I believe. Either way, that wouldn't explain why it would work with one driver release and not another.

 

[Skurge]

HDMI doesn't support 1440p so I'm not sure how you got it to run at that resolution before.

 

[pandemonium]

Yes it does.

True Resolution : 2560x1440 (HDMI/DisplayPort/Dual-link DVI)
1920x1080 (D-sub)

http://www.asus.com/News/39UI8DMcGGPtjDiF/

The PB278Q features a host of connectivity options that include HDMI 1.4

Version 1.4

HDMI 1.4 was released on May 28, 2009, and the first HDMI 1.4 products were available in the second half of 2009.[111][143] HDMI 1.4 increases the maximum resolution to 4K × 2K, i.e. 3840 × 2160p (Quad HD) at 24 Hz/25 Hz/30 Hz or 4096 × 2160p at 24 Hz (which is a resolution used with digital theaters)

Anyway, aside from proving my sanity, I guess I'm the only one with this problem so far. >.<

 

[pandemonium]

Ridiculous. I've tried HDMI 1.4 cabling, dual-link DVI, and WHQL drivers 13.4, 13.9, and beta 13.8, and 13.10 and all of them will not allow 2560x1440. Only 1920x1080 is available.

There also appears to be similar issues popping up on AMD's support forums. Sucks.

Edit: Finally fixed it!

I'm not really certain what did it, but 2560x1440 is now working under 13.10 betas. Somewhere along the lines of uninstalling drivers, rebooting in safe mode and clearing temporary files, cleaning registry keys, check monitor.sys for an update (none), installing ASUS Multiframe, redownloading a fresh driver pack, and reinstalling it got it working. So weird. >.<

 

[BrightSideSC]

Yes it does.



http://www.asus.com/News/39UI8DMcGGPtjDiF/





Anyway, aside from proving my sanity, I guess I'm the only one with this problem so far. >.<

good to know.