Youtube, Discord, Visual Studio Code are flickering with black checkered squares/vertical lines. Partial solutions to this issue.

[Sora]

No I see it in black/dark area "checkered squares"

This issue had nothing to do with "Dark area's", it was a tertiary data race condition causing DirectComposition to output garbage because the original data had been deleted before the compositor had finished using them,

What you're seeing is a lack of information in the black area's, probably a result of either color crush by using Digital Vibrance or some flaw with the displays handling of DSC.

Chromium OpenGL does not use DirectComposition, it uses legacy blitting.

 

[Martin007]

Chromium OpenGL does not use DirectComposition, it uses legacy blitting.

I restored to default I got several crash from chrome after using opengl

What you're seeing is a lack of information in the black area's, probably a result of either color crush by using Digital Vibrance or some flaw with the displays handling of DSC.

After several trials I found this occur in HDR mode only not SDR. Is there a possible fix for that ?

 

[Rkss]

My Sony smart tv also has it, so this can't be windows only' issue
I play video with usb stick or bultin- youtube player. But this is definitely related to refresh rate.

 

[agent_x007]

Just wanted to point out something after I saw this.
That checker pattern looks somewhat like tile based rasterizing pattern NV uses since Maxwell 1.0 :

It should NOT be visible under any circumstances though, so I'm not sure why you can see it (or if it's actually that).

 

[mkdr]

this is on the known issues list for 24h2

The infinite flicker on Windows 11 24h2 is still not fixed, how is this possible!? do you have any information it?

 

[x7007]

I have 4090RTX I disabled RTX Video and Super RTX. but MPO still not enabled, stay 1
How do I enable it? Registry is Enabled not exist as disabled.
I don't have dual view,
using 10bit I tried 8bit

 

[mclaren85]

I think I've found the solution.
Since I've tried this method for 3 times in a row, I'm pretty sure the source of the problem.
I unplug the GPU and clean the contacts with an eraser rubber until the contacts become shiny again. After carefully seated there is no way not to work beautifully.
Of course it is impossible to address every sort of problem but, checkherboard like sypmtoms on idle are very very similar to those of digital signal distortion.

Please try by yourself.

 

[Dr. Dro]

I have 4090RTX I disabled RTX Video and Super RTX. but MPO still not enabled, stay 1
How do I enable it? Registry is Enabled not exist as disabled.
I don't have dual view,
using 10bit I tried 8bit

MPOs are unavailable because you are using 10 bpc SDR. Use 8 bpc instead, or turn HDR on.

 

[x7007]

MPOs are unavailable because you are using 10 bpc SDR. Use 8 bpc instead, or turn HDR on.

it was the Samsung S90C TV, I needed to change something in the Service Menu with Game Mode and MPO now works perfectly, it was because DSC, which I disabled with the changing

so it works now 10bit HDR 4K 144Hz VRR/GSYNC

This is the full guide

https://www.reddit.com/r/OLED_Gaming/comments/1frmexd/guide_samsung_s90c_disable_dsc_display_stream

This is the guide I made

You use ColorControl

go to the Samsung Tab.
Click on Add, in the Name put (anything)
ip-address if you are Wired or Wireless put the Ip address of your tv. In TV Menu (Network/Network Status/IP Configuration)
MAC - address. In your TV Menu (Support/About TV/ Search your MAC Wired or Wireless it will depend on your network type).

IT WILL APPEAR A NOTIFICATION POP-OUT IN THE TV, ASKING YOUR PERMISSION TO CONTROL YOUR TV, PRESS ALLOW.

Now click on the bottom right "Settings" of ColorControl and make sure "Show advanced actions under the Expert-button is ON.

EXPERT Service Menu

factory

VOL + 5 Sec

OPTIONS > GAME MODE 12 to 9

RESTART

Dithering 8bit TEMPORAL

Use a GPU with HDMI 2.1 port and compatible cable. Ensure "Monitor Technology" is set to "G-Sync Compatible".
Enter service menu go to Option / MRT Option /Game Mode and change from 12 to 9 and reboot tv.
Download CRU 1.5.2.
Under "Extension blocks", double click "CTA-861", double click "TV resolutions", then delete every 4096x2160 resolution.
Click Ok, then double click on "HDMI Support" and delete the 4096x2160 resolution under "HDMI Resolutions". Click ok on every window. Double click "HDMI 2.1 Support".
Set Variable refresh rate from 48 - 120 to 48 - 144 Hz and confirm with OK on both open windows.
Under "Extension blocks", press "Add..."' Go to Type & select '"DisplayID 2.0".
Then press "Add...", select "Detailed resolutions", press "Add...", go to "Timing" and choose "CVT-RB v2 Standard". In the same window, set "Refresh rate" to 144 Hz.
OK all four windows.
Double click "Restart64.exe" in the CRU folder.
Select 144 Hz wherever you want (control panel or Windows display settings).