Got a monitor problem, 1920x1080 screen res works with VGA but not DVI

mrfun1981 · 3 Mar 2010 at 11:20

I know there are a few computer people on here, so thought i would see if you can tell me the problem.

Monitor: Acer H223HQ
Graphics: on board HD3300.

A title says when using a VGA cable i can set my screen res to 1920x1080 without a problem but if i try to use a DVI cable it dont work the screen flashing black every few seconds. Iv rang tec support from where i got the monitor from & they say if its works with VGA just use it that way as i wont see a diff between VGA & DVI imo there is a slight difference & the DVI is slightly shaper picture.

I can use the DVI up to 1280x1024 before i start getting any problems. My graphics drivers are all up to date etc.

So anyone know what the problem might be please
Cheer

sorn21 · 3 Mar 2010 at 11:22

Have you tried another DVI cable?

Strange issue, and DVI has a noticable difference over VGA for me, so I wouldn't settle for that.

mrfun1981 · 3 Mar 2010 at 11:25

Iv not got another cable, guess i could go out & buy one on the weekend & test that.

Any other ideas welcome

sorn21 · 3 Mar 2010 at 13:41

Hmm, I used a program which forced certain resolutions out over DVI a while ago, rather handy...

Let me just have a look and see if I can find it again.

sorn21 · 3 Mar 2010 at 13:51

http://www.entechtaiwan.com/util/ps.shtm

Have a look at PowerStrip, helped me out when I had Monitor woes

mrfun1981 · 3 Mar 2010 at 15:04

Thanks for that, not at my pc at the mo il download it later n post back if it works or not

cheers

sorn21 · 3 Mar 2010 at 15:09

Cool, should sort it out temporary, but it's worth pointing out I had to RMA my monitor to fix my problem.

Basically it wouldn't display over a certain resolution where it was rated to 1920x1200. That app allowed me to force 1920x1200, but whenever plugging into another PC it would still think it was a lower rez

PhillyDee · 3 Mar 2010 at 15:10

It makes bi differnece if they think they cannot see a difference. You paid for DVI, and DVI you shall use!

mrfun1981 · 4 Mar 2010 at 10:58

I think i can rule the monitor out as the problem as iv used someone else's PC for 30mins with my monitor & DVI cable & it works perfectly fine at 1920x1080 via DVI connection. Was using a 9800GT graphics card in there system.

So im really stumped as to why i can use DVI from my onboard at 1280x1024 but if i go to 1920x1080. It starts flashing on n off at me.

IV tried powerstrip but dont fix the probelm. Iv double checked my drivers are up to date & they are.

My board (biostar TA790GX 128M) is a week under a 1 year old, so i guess maybe iv got the option to RMA or i guess get a new graphics card if i want to use DVI at the higher screen res.

bledd · 5 Mar 2010 at 09:46

Is there a BIOS update for your motherboard?

Worth a shot