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uVSthem · (Last edited: 02-16-2020, 02:59 AM by uVSthem)

I'll give it a try but I am pretty sure the TV only supports 4k at 4:2:0. I know for sure it cannot do 4k at 4:4:4. I'm not sure about anything in between.

(02-16-2020 02:28 AM)ToastyX Wrote:
(02-16-2020 01:58 AM)uVSthem Wrote: HDMI 2.0 support is in the extention. I attached the exported setting and a screen shot of what I am looking at. I'm using port 5 on the TV. The PC is connected to my Onkyo receiver which is HDMI 2.0B and then passes the video to my TV but even when I connect the video card directly to the TV I have the same issue.
The EDID you posted doesn't have 3840x2160 @ 60 Hz anywhere except as a 4:2:0 resolution. That's the problem. Add it as a detailed resolution or TV resolution, and remove the 4:2:0 resolutions data block. The TV should have already defined 60 Hz though if it supports HDMI 2.0, so something is amiss.

If I add it as a a detailed resolution the screen blanks out whenever Windows tries to reboot. As soon as it is time to display the desktop the screen goes blanks as if the the TV is getting an unsupported resolution.

Adding it to the TV resolutions results in 60hz being selected for scaled resolutions but if I to select 60hz for the said resolution the screen blanks out as if the mode is unsupported. Is this because the TV can only do 4k at 4:2:0?

***ToastyX*** · 02-16-2020, 03:22 AM

(02-16-2020 02:31 AM)uVSthem Wrote: If I add it as a a detailed resolution the screen blanks out whenever Windows tries to reboot. As soon as it is time to display the desktop the screen goes blanks as if the the TV is getting an unsupported resolution.

Adding it to the TV resolutions results in 60hz being selected for scaled resolutions but if I to select 60hz for the said resolution the screen blanks out as if the mode is unsupported. Is this because the TV can only do 4k at 4:2:0?

It doesn't make sense for a TV that supports HDMI 2.0 to not support at least YCbCr 4:2:2 at 60 Hz. YCbCr 4:2:0 only requires HDMI 1.4. The specs and manual are useless for finding out what the TV actually supports. It only says 4K @ 60 Hz requires port 5. Some TVs require enabling UHD color or some other option, but I don't see that in the manual.

uVSthem · 02-16-2020, 03:30 AM

I am sorry, you are right. It supports up to 4:2:2, not 4:2:0. There are no setting in the TV's menu for UHD color.

Does this help at all?

https://www.rtings.com/tv/reviews/vizio/...st-results

***ToastyX*** · 02-16-2020, 03:45 AM

(02-16-2020 03:30 AM)uVSthem Wrote: I am sorry, you are right. It supports up to 4:2:2, not 4:2:0. There are no setting in the TV's menu for UHD color.

Does this help at all?

https://www.rtings.com/tv/reviews/vizio/...st-results

It doesn't say how they got 4:2:2. It should be plug and play.

uVSthem · (Last edited: 02-16-2020, 04:03 AM by uVSthem)

So the setting I have plus adding it to the detailed resolution should be all I need to do? Should I remove 4K from the 4:2:0 menu?

joevt · (Last edited: 02-16-2020, 05:21 AM by joevt)

(02-15-2020 07:11 PM)benoe Wrote: I have attached the moninfo output with displayport connected.

That's the EDID for the DisplayPort connection. It shows the 120Hz timing that you were missing from the EDID for the HDMI connection. Can you post the EDID for the HDMI connection for comparison?

(02-15-2020 07:11 PM)benoe Wrote: My goal is to make my radeon card lower it's memory clock rate when idle by increasing the vertical blanking lines. This increases pixel clock.

I don't know anything about that. The EDID says the max pixel clock is 330 MHz so you're kind of limited. If you increase vertical lines then you need to decrease horizontal numbers to keep the pixel clock below 330 MHz.

(02-16-2020 01:58 AM)uVSthem Wrote: HDMI 2.0 support is in the extention. I attached the exported setting and a screen shot of what I am looking at. I'm using port 5 on the TV. The PC is connected to my Onkyo receiver which is HDMI 2.0B and then passes the video to my TV but even when I connect the video card directly to the TV I have the same issue.

The exported setting.bin is a modified EDID from the Onkyo. Who know's what modifications the Onkyo makes? Probably just audio related, but you should post the EDID from the display to be sure.

benoe · 02-16-2020, 10:33 AM

(02-16-2020 04:57 AM)joevt Wrote: That's the EDID for the DisplayPort connection. It shows the 120Hz timing that you were missing from the EDID for the HDMI connection. Can you post the EDID for the HDMI connection for comparison?

This must be the edid for the hdmi.

joevt · 02-16-2020, 03:25 PM

(02-16-2020 10:33 AM)benoe Wrote: This must be the edid for the hdmi.

Yes, but it also has the 120Hz timing, so I don't know why you couldn't see it in CRU. It's the first timing in the CTA-861 extension block: 1920x1080 @ 119.982 Hz. I think you were only looking in the base EDID block where the 60 and 144Hz timings are.

Seems strange that it would include the 144Hz (325.080MHz) timing when the max pixel clock is set to 300MHz for HDMI.

benoe · 02-16-2020, 08:36 PM

(02-16-2020 03:25 PM)joevt Wrote:
(02-16-2020 10:33 AM)benoe Wrote: This must be the edid for the hdmi.
Yes, but it also has the 120Hz timing, so I don't know why you couldn't see it in CRU. It's the first timing in the CTA-861 extension block: 1920x1080 @ 119.982 Hz. I think you were only looking in the base EDID block where the 60 and 144Hz timings are.

Seems strange that it would include the 144Hz (325.080MHz) timing when the max pixel clock is set to 300MHz for HDMI.

That I can edit, but it isn't the 119Hz setting from here?

joevt · 02-16-2020, 10:53 PM

(02-16-2020 08:36 PM)benoe Wrote: That I can edit, but it isn't the 119Hz setting from here?

I don't know.
There are also these:
640x480 119.999 Hz (Standard)
800x600 120.000 Hz (Standard)
1024x768 120.000 Hz (Standard)
1920x1080 119.982 Hz 137.260 kHz 285.500 MHz (Detailed)
1920x1080 120.000 Hz 135.000 kHz 297.000 MHz (TV)

Does your display show horizontal scan rate or pixel clock?