Gtx 970 hdmi 2.0 support

[JDG1980]

That image does not appear to be showing up correctly, the colored vertical lines shift up and down depending on where I move the window.

[...]

I've noticed I can't get the TV to run in PC mode at 4K though. This could be why it is failing that test... without PC mode on at 1080p, I get fuzzy artifacts around the edges of fonts, the same thing is happening at 4K except renaming the input to PC has no effect on the output whatsoever.

Is there a "UHD Color" setting anywhere on your TV? I found the following information (taken from a Samsung manual) on AVS Forum:

HDMI UHD Color
If an external UHD player is connected to the TV, follow these steps to convert the TV's HDMI
connector to a mode optimized for the UHD 50P/60P signals.
" Each HDMI connector can be individually optimized for HDMI UHD Color. However, HDMI UHD Color is
available only with a video source featuring the UHD 50P/60P 4:4:4 and 4:2:2 specifications.
11 Turn off the external UHD player, and then disconnect the HDMI cable between the TV and the
external device.
21 Navigate to Picture > Picture Options, and then select HDMI UHD Color. The Settings screen
appears.
31 In the Settings screen, set the UHD player-connected HDMI connector to On. A popup window
appears.
41 Select Yes. The TV automatically turns off and then on again to set the selected HDMI connector
to HDMI UHD Color.
" Before selecting Yes from the popup window, make sure that the HDMI cable is not connected to the
TV. The HDMI UHD Color settings will be completed only if the HDMI cable is not connected to the
HDMI connector.
51 When the settings are complete, a confirmation message appears. Select OK.
61 Connect the TV to the external UHD player using the HDMI cable, and then turn on the external
UHD player.
" After setting the HDMI connector to On, it takes some time to complete the conversion.
" If the HDMI connector with HDMI UHD Color enabled is connected to a device that does not support
UHD content, the device may not operate properly. If this is the case, set HDMI UHD Color for the HDMI
connector to Off.
" The HDMI connector with HDMI UHD Color set to Off supports up to UHD 50P/60P 4:2:0, while the
HDMI connector with HDMI UHD Color set to On supports up to UHD 50P/60P 4:4:4 and 4:2:2. For
more information, refer to "UHD Compatibility".

Some people say that using HDMI input port number 2 makes a difference. I doubt that myself, but it can't hurt to try.

I'd be interested to hear if anything you do manages to fix the chroma subsampling problem.

 

[x3sphere]

Is there a "UHD Color" setting anywhere on your TV? I found the following information (taken from a Samsung manual) on AVS Forum:



Some people say that using HDMI input port number 2 makes a difference. I doubt that myself, but it can't hurt to try.

I'd be interested to hear if anything you do manages to fix the chroma subsampling problem.

Already did that. Enabling UHD Color Mode seems to be required to get output at 60Hz, by the way. With it disabled I don't get any output at 60Hz.

Oh and I am using port #2.

Wonder if I'm getting 4:2:2. Would explain why the IQ looks better than it did on the 780 (which forced 4:2:0 at 60 Hz), but text still looks blurry.

 

[rickon66]

I have a chance to get a 4K Samsung real cheap and would love to know if you who are using 4K TV's as monitors are happy with the results on the GTX 980. I currently have a 780Ti and will need to upgrade to to the 980. Thanks!

 

[JDG1980]

Already did that. Enabling UHD Color Mode seems to be required to get output at 60Hz, by the way. With it disabled I don't get any output at 60Hz.

Oh and I am using port #2.

Wonder if I'm getting 4:2:2. Would explain why the IQ looks better than it did on the 780 (which forced 4:2:0 at 60 Hz), but text still looks blurry.

Thanks for the info.

It looks like no one has ever managed to get the Samsung 4K TVs to display 4:4:4 color at native resolution. At least none that I've heard of. That's a shame - I was hoping that the Samsung UN40HU6950 would make a good 4K monitor, but apparently not.

I guess I'll have to wait for the upcoming 40" Seiki Pro with HDMI 2.0 and DisplayPort 1.2. It's a shame that there aren't any 4K monitors in that size yet - Asus announced a 39" 4K monitor long ago, but it never showed up.

 

[x3sphere]

I'm hoping it's just a issue on the driver side. Nvidia might have rushed these initial drivers out and haven't tested with all TVs yet. It shouldn't be an issue with the TV itself, as the manual for this HU8550 states that it supports 4K/60Hz output at 4:4:4.

 

[Termie]

I'm hoping it's just a issue on the driver side. Nvidia might have rushed these initial drivers out and haven't tested with all TVs yet. It shouldn't be an issue with the TV itself, as the manual for this HU8550 states that it supports 4K/60Hz output at 4:4:4.

I would have never guessed that a settings change like this would be required. Good info.

Hope you're right that your problem now is just a driver issue. I have the same TV.

 

[coppice]

Do you happen to know if it's running at 4:4:4 (no chroma subsampling)? There were some concerns expressed on an Amazon review about the Samsung UN40HU6950 (which does offer HDMI 2.0 support) that it was downsampling the chroma to 4:2:0 even when using HDMI 2.0.

The answer to this is weird. On a Samsung TV you have the option to enter a label for each of the HDMI ports. You might think this is just a text string, so the port for the blueray player can say "Blueray" and so on. However. try setting the label for the HDMI port for your PC to "PC" and you will find it actually changes the video mode to 4:4:4 as well. Obscure, huh?

 

[x3sphere]

The answer to this is weird. On a Samsung TV you have the option to enter a label for each of the HDMI ports. You might think this is just a text string, so the port for the blueray player can say "Blueray" and so on. However. try setting the label for the HDMI port for your PC to "PC" and you will find it actually changes the video mode to 4:4:4 as well. Obscure, huh?

I have my input renamed to PC as well. Doesn't fix it in this case unfortunately.

 

[coppice]

I have my input renamed to PC as well. Doesn't fix it in this case unfortunately.

Which model of TV do you have? I have a UA40HU5908J on my desk, as my computer monitor. Simply changing the HDMI port label between PC and something else make the colour go right or wrong. I have been told the same thing works with several larger models. The software is pretty generic across the Samsung range, so it would be weird if they didn't all behave in the same way. The whole thing is weird, though. The documentation doesn't seem to mention this point, and your would almost never stumble across it by accident. Someone *HAS* to tell you.

 

[x3sphere]

Which model of TV do you have? I have a UA40HU5908J on my desk, as my computer monitor. Simply changing the HDMI port label between PC and something else make the colour go right or wrong. I have been told the same thing works with several larger models. The software is pretty generic across the Samsung range, so it would be weird if they didn't all behave in the same way. The whole thing is weird, though. The documentation doesn't seem to mention this point, and your would almost never stumble across it by accident. Someone *HAS* to tell you.

55HU8550. It's very strange. Renaming to PC works when running 4K/30Hz, but not 4K/60Hz. It literally has no effect at all. Usually after renaming the input many of the options in the TV menu are disabled, but when running 4K/60Hz everything is still available.

Also tried going through the options and disabling all the extra features to see if that'd fix it, but no luck.

 

[96Firebird]

There might be a setting that you're missing, anything named "Deep color" or something similar?

http://forums.evga.com/GTX-970-not-HDMI-20-m2222429.aspx

 

[Silverforce11]

Is HDMI 2 better than DP?

 

[coppice]

Is HDMI 2 better than DP?

DP is probably better, but I've never seen a TV with a DP port. It seems some fo the high ends Samsungs have some kind of option module with DP, but you need to pay extra for that. In general using a TV means using HDMI.

 

[x3sphere]

There might be a setting that you're missing, anything named "Deep color" or something similar?

http://forums.evga.com/GTX-970-not-HDMI-20-m2222429.aspx

UHD Color Mode might be the equivalent of that. I've enabled it though and no luck.

 

[96Firebird]

Hmm, I'll keep an eye out for any other solutions...

Long shot, but have you tried a different cable?

 

[x3sphere]

Hmm, I'll keep an eye out for any other solutions...

Long shot, but have you tried a different cable?

I have but it was the same brand (Amazon Basic).

 

[cytg111]

4k@60Hz is working on my HU8550 and GTX 980. I'm using a 25ft cable I bought off Amazon:

http://www.amazon.com/AmazonBasics-H...rds=hdmi+cable

Update on the HDMI cable :

On an all-black blackground I noticed I was getting some white sparkly dots on the screen. I swapped my HDMI cable (same brand as I posted above) with a 15ft instead of 25ft. Went away now. Not sure if I had a defective cable or the length was causing an issue - I know some longer DP cables have had similar issues pushing 4K.

So whats your objective call on HU8550 and 4K for PC use? Good/Bad/Would do it again? . Also, what size are you at? I read that 60"+ is having problems the smaller models do not. (I am pondering on HU7500 myself, 55").

 

[x3sphere]

So whats your objective call on HU8550 and 4K for PC use? Good/Bad/Would do it again? . Also, what size are you at? I read that 60"+ is having problems the smaller models do not. (I am pondering on HU7500 myself, 55").

55"

Honestly... I'm rather frustrated right now, because I can't get 4:4:4 (full RGB) output working. All the specs tell me it should work. Having full RGB isn't critical if you just want to watch movies or play games but for desktop use it's a must as text looks really bad in 4:2:0 or 4:2:2 mode.

 

[cytg111]

55"

Honestly... I'm rather frustrated right now, because I can't get 4:4:4 (full RGB) output working. All the specs tell me it should work. Having full RGB isn't critical if you just want to watch movies or play games but for desktop use it's a must as text looks really bad in 4:2:0 or 4:2:2 mode.

.. Sorry to hear that, "text" is mandatory ... guess ill play the waiting game a bit longer. Hope you get yours resolved..

 

[dinker99]

Is HDMI 2 better than DP?

I think we are all waiting for DP1.3

 

[JDG1980]

I think we are all waiting for DP1.3

DP 1.2 works fine for 4K@60Hz. Hacks like MST are not required; the only reason that was done was because the appropriate interface ICs for the monitors were not available early enough. The problem is that all of the current monitors that do support 4K@60Hz SST are using the same 28" TN panel. You can't, at this time, get a quality 32" IPS/IGZO 4K monitor without having to put up with MST. That should change by the end of the year.

Seiki is also going to be releasing a "Pro" series of 4K TVs in early 2015. These are supposed to support both DP 1.2 and HDMI 2.0. For those who want more workspace (as opposed to higher DPI), I suspect the 40" Seiki Pro will be very popular. (40" at 4K comes out to 110 DPI, which is slightly more than what you'd get on a standard 27" 1440p panel.)

 

[CakeMonster]

Is there a "UHD Color" setting anywhere on your TV? I found the following information (taken from a Samsung manual) on AVS Forum:



Some people say that using HDMI input port number 2 makes a difference. I doubt that myself, but it can't hurt to try.

I'd be interested to hear if anything you do manages to fix the chroma subsampling problem.

I only have a 780 but I'm having issues making full color space available even with port 2 in UHD mode and using 24 or 30hz settings. I wish I could disable any non-4:4:4 output mode to even work in NV drivers.

 

[Termie]

Hmm, I'll keep an eye out for any other solutions...

Long shot, but have you tried a different cable?

I have but it was the same brand (Amazon Basic).

Seriously, this was my concern from the start. Despite what the hdmi consortium says, my understanding of hdmi 2.0 from electrical engineers is that not just any cable can pass it.

Before giving up, get a cable that advertisers it can pass HDMI 2.0. They're not supposed to, of course.

 

[cytg111]

reading avsforum.com is downright depressing

There is no "official" 4k delivery system for consumer content at the moment.


Current signals conform to the REC 709 spec which was developed for HD. Signals are at 4:2:0 colorspace - up to 16 million colors.


Currently being considered is the REC 2020 spec which supports 4k AND 8k up to 120fps.
REC 2020 allows for 4:4:4 colorspace - up to BILLIONS of colors.
REC 202 no longer supports interlaced video. Everything is Progressive.


NO TELEVISION TODAY CAN SUPPORT REC 2020
We are YEARS away from a consumer 4k format (other than streaming x265)
REC 2020 sets will cost a lot more as making a true 4:4:4 panel and electronics requires a lot of bandwidth and complexity.

......


Samsung has both the HU8550 and HU9000 replacement LCD screens listed as 10-bit on their official parts site but that is the only place I have seen it. Where did you read that? It has a One Connect port and has been labeled as One Connect compatible in the future. It may already have HDMI 2.0 but as I have said before the chipsets are limited, so either you have full HDMI 2.0 or HDCP 2.2. Eventually, when there is an agreement on HDCP 2.2 there will be a chipset that contains both (this is all guesses on my part) and Samsung will get it in our hands via One Connects.

 

[x3sphere]

Seriously, this was my concern from the start. Despite what the hdmi consortium says, my understanding of hdmi 2.0 from electrical engineers is that not just any cable can pass it.

Before giving up, get a cable that advertisers it can pass HDMI 2.0. They're not supposed to, of course.

I'll have to get a different cable in the next few days. I don't think it's the cable, though:

What I'm seeing is that renaming the input to PC does absolutely nothing in 4K@60Hz mode. If I rename the input to something other than PC at lower resolutions that gives me the same issues I'm experiencing now with poor quality text.

So, I think a 4:4:4 signal is being outputted but when it hits the TV it's being downconverting to 4:2:2 or 4:2:0 due to PC mode not being enabled.

This imo would point to a firmware issue on the TV - although other people on the NV forums claim they're getting 4:4:4 so I'm not sure. They have the 65" panel though, not sure if there would be a difference in firmware between sizes. I've asked them to confirm if PC mode is actually enabled as when it is, various settings in the menus are disabled.

Edit: The more I hear from these people that are claiming to get it working the more it seems they just aren't noticing the chroma artifacts. Ongoing thread here: https://forums.geforce.com/default/...-w-samsung-un65hu9000-4k-60hz-working-config/