twisty on 3/6/2015 at 09:48
I recently replaced my NVIDIA 570 with a 970 and had to use a DVI cable instead of HDMI as, unlike the 570, the 970 uses a full size HDMI port. One of the first things I noticed was how much richer and clearer everything looks with the 970 which I presumed was the result of having a higher specced card. Yesterday however I purchased a HDMI cable (1.4) and was disappointed to see that the picture quality looks similar to how it looked before.
I was under the assumption that the picture quality of HDMI and DVI-I is identical (googling seems to confirm this). Any ideas re why the HDMI quality is inferior in my experience?
bikerdude on 3/6/2015 at 10:44
There shouldn't be any difference, check your monitor isn't using a different preset for the HMDI input.
Al_B on 3/6/2015 at 19:54
I assume you're using a monitor rather than a TV but when I've used HDMI with a LCD TV if the graphics card refresh rate doesn't correspond with the native frequency of the TV then the picture can be quite washed out with poor contrast.
bikerdude on 4/6/2015 at 06:11
@Al, hmm. So hmdi isnt the same as dvi even though they are both digital..? this requires more research.
twisty on 4/6/2015 at 13:38
My monitor is a (
https://www.asus.com/au/Monitors/VK248H/) VK248H. According to the website I linked to the refresh rate is 30~83 KHz(H)/ 50~76 Hz(V), however in the NVIDIA panel the maximum that I can use for my native resolution of 1920x1080 is 60Hz; higher refresh rates only available at lower resolutions.
Bikerdude, I can't see any options via the monitor settings that allows me to change any of the HDMI settings.
bikerdude on 4/6/2015 at 13:53
Quote Posted by twisty
* however in the NVIDIA panel the maximum that I can use for my native resolution of 1920x1080 is 60Hz; higher refresh rates only available at lower resolutions.
* Bikerdude, I can't see any options via the monitor settings that allows me to change any of the HDMI settings.
* 60hz is normal and what it should be set to.
* Its the picture modes I was refering too - (
https://www.asus.com/au/Monitors/VK248H/specifications/)
twisty on 5/6/2015 at 08:49
That did the trick, thanks. Fortunately one doesn't have to install that patch though as NVIDIA have it included in their control panel now.
In case anyone has this issue in the future, it's a matter of going in to the "Change Resolution" screen and enabling YCbCr444 as the colour output mode.
