Monitor Tests Forum

hello i have a lg c3 and a panasonic lz1000, connected to a 4080super with 2.1 hdmi certified cable
i can't see the hdr certification (dolby vision) on win11 monitor settings and i dont have the option for enable dolby vision
how can i enable this certification and dv?
i also installed dolby access and dolby video extension

(01-16-2026 10:01 PM)djsolidsnake86 Wrote: [ -> ]hello i have a lg c3 and a panasonic lz1000, connected to a 4080super with 2.1 hdmi certified cable
i can't see the hdr certification (dolby vision) on win11 monitor settings and i dont have the option for enable dolby vision
how can i enable this certification and dv?
i also installed dolby access and dolby video extension

Is there a Dolby video data block in the extension block? I don't know what else would be required.

(01-19-2026 03:23 AM)ToastyX Wrote: [ -> ]

(01-16-2026 10:01 PM)djsolidsnake86 Wrote: [ -> ]hello i have a lg c3 and a panasonic lz1000, connected to a 4080super with 2.1 hdmi certified cable
i can't see the hdr certification (dolby vision) on win11 monitor settings and i dont have the option for enable dolby vision
how can i enable this certification and dv?
i also installed dolby access and dolby video extension

Is there a Dolby video data block in the extension block? I don't know what else would be required.

yes, see the image
is greyed out

(01-21-2026 06:35 PM)djsolidsnake86 Wrote: [ -> ]is greyed out

This is the Dolby Vision (DV) Vendor Specific Video Data Block (VSVDB) in the EDID of the LG C3:

eb 01 46 d0 00 48 22 6e 84 60 6e 95

6e [hex] = 0110 1110 [bin]

00 = LLDV (YCbCr 4:2:2 12-bit … as sent from the Xbox for example)
01 = LLDV + LLDV RGB/YCbCr 4:4:4 10/12-bit
10 = DV (8-bit RGB container ... as sent from Ultra HD Blu-ray players) + LLDV
11 = DV + LLDV RGB/YCbCr 4:4:4 10/12-bit

HDR certification is only displayed as Dolby Vision in Windows 11 if the EDID contains [LLDV RGB/YCbCr 4:4:4 = TRUE] in the interface definition.
This is not the case with the LG C3.

84 60 [hex] = 1000 0100 0110 0000 [bin] = 10/12-bit disabled

Bit[0] = TRUE = 10-bit enabled
Bit[8] = TRUE = 12-bit enabled
Both bits enabled means „reserved“

This TV isn't designed for use with Dolby Vision on a PC. Whether you can force it to do so and get usable results is another story.

Try importing this into CRU (file attached):

00 ff ff ff ff ff ff 00 1e 6d cd 81 01 01 01 01
01 21 01 03 80 a0 5a 78 0a ee 91 a3 54 4c 99 26
0f 50 54 a1 08 00 31 40 45 40 61 40 71 40 81 80
d1 c0 01 01 01 01 08 e8 00 30 f2 70 5a 80 b0 58
8a 00 40 84 63 00 00 1e 6f c2 00 a0 a0 a0 55 50
30 20 35 00 40 84 63 00 00 1e 00 00 00 fd 00 18
78 1e ff 77 00 0a 20 20 20 20 20 20 00 00 00 fc
00 4c 47 20 54 56 20 53 53 43 52 32 0a 20 01 9d

02 03 6c f1 5d 61 60 76 75 66 65 db da 10 1f 04
13 05 14 03 02 12 20 21 22 15 5d 5e 5f 62 63 64
3f 40 32 09 57 07 15 07 50 57 07 01 3d 1e c0 5f
7e 07 67 04 03 6e 03 0c 00 20 00 b8 44 2c 00 80
01 02 03 04 6d d8 5d c4 01 78 80 6b 43 28 78 d3
33 05 e2 00 cf e3 05 c0 00 e3 06 0d 01 e2 0f ff
eb 01 46 d0 00 48 22 6d 85 60 6e 95 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 8c

0110 1101 = 6d
1000 0101 0110 0000 = 85 60

===>>> new VSVDB: eb 01 46 d0 00 48 22 6d 85 60 6e 95

(01-21-2026 11:00 PM)MUC Wrote: [ -> ]

(01-21-2026 06:35 PM)djsolidsnake86 Wrote: [ -> ]is greyed out

This is the Dolby Vision (DV) Vendor Specific Video Data Block (VSVDB) in the EDID of the LG C3:

eb 01 46 d0 00 48 22 6e 84 60 6e 95

6e [hex] = 0110 1110 [bin]

00 = LLDV (YCbCr 4:2:2 12-bit … as sent from the Xbox for example)
01 = LLDV + LLDV RGB/YCbCr 4:4:4 10/12-bit
10 = DV (8-bit RGB container ... as sent from Ultra HD Blu-ray players) + LLDV
11 = DV + LLDV RGB/YCbCr 4:4:4 10/12-bit

HDR certification is only displayed as Dolby Vision in Windows 11 if the EDID contains [LLDV RGB/YCbCr 4:4:4 = TRUE] in the interface definition.
This is not the case with the LG C3.

84 60 [hex] = 1000 0100 0110 0000 [bin] = 10/12-bit disabled

Bit[0] = TRUE = 10-bit enabled
Bit[8] = TRUE = 12-bit enabled
Both bits enabled means „reserved“

This TV isn't designed for use with Dolby Vision on a PC. Whether you can force it to do so and get usable results is another story.

Try importing this into CRU (file attached):

00 ff ff ff ff ff ff 00 1e 6d cd 81 01 01 01 01
01 21 01 03 80 a0 5a 78 0a ee 91 a3 54 4c 99 26
0f 50 54 a1 08 00 31 40 45 40 61 40 71 40 81 80
d1 c0 01 01 01 01 08 e8 00 30 f2 70 5a 80 b0 58
8a 00 40 84 63 00 00 1e 6f c2 00 a0 a0 a0 55 50
30 20 35 00 40 84 63 00 00 1e 00 00 00 fd 00 18
78 1e ff 77 00 0a 20 20 20 20 20 20 00 00 00 fc
00 4c 47 20 54 56 20 53 53 43 52 32 0a 20 01 9d

02 03 6c f1 5d 61 60 76 75 66 65 db da 10 1f 04
13 05 14 03 02 12 20 21 22 15 5d 5e 5f 62 63 64
3f 40 32 09 57 07 15 07 50 57 07 01 3d 1e c0 5f
7e 07 67 04 03 6e 03 0c 00 20 00 b8 44 2c 00 80
01 02 03 04 6d d8 5d c4 01 78 80 6b 43 28 78 d3
33 05 e2 00 cf e3 05 c0 00 e3 06 0d 01 e2 0f ff
eb 01 46 d0 00 48 22 6d 85 60 6e 95 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 8c

0110 1101 = 6d
1000 0101 0110 0000 = 85 60

===>>> new VSVDB: eb 01 46 d0 00 48 22 6d 85 60 6e 95

how can this help me?

lg c3 is official dolby vision certified!

(01-22-2026 12:56 PM)djsolidsnake86 Wrote: [ -> ]how can this help me?

• Please download the attached file above.
• Connect only your LG C3 TV to your graphics card.
• Run CRU.
• The CRU window should now display "LG TV SSCR2 (active)" at the top.
• Click Import in the lower left corner.
• Select "TXT files" as the file type.
• Check the box next to Import full EDID.
• Select the file "EDID_LG_C3_DV_PC_01.txt" and click OK.
• Close CRU by clicking OK.
• Restart your PC.
  

(01-22-2026 08:30 PM)MUC Wrote: [ -> ]

(01-22-2026 12:56 PM)djsolidsnake86 Wrote: [ -> ]how can this help me?

• Please download the attached file above.
• Connect only your LG C3 TV to your graphics card.
• Run CRU.
• The CRU window should now display "LG TV SSCR2 (active)" at the top.
• Click Import in the lower left corner.
• Select "TXT files" as the file type.
• Check the box next to Import full EDID.
• Select the file "EDID_LG_C3_DV_PC_01.txt" and click OK.
• Close CRU by clicking OK.
• Restart your PC.
  

this is great, now i have the dolby vision option on win 11, and actually win11 is on dolvy vision mode, but when i open a dv video on mpc hc with mpc video renderer and the option set to prefer dv over pq the monitor go always in hdr mode
how solve this?

and do you have the edid for the panasonic 65lz1000? or i can try the lg c3 cause they have the same display panel i think

(01-22-2026 09:36 PM)djsolidsnake86 Wrote: [ -> ]and do you have the edid for the panasonic 65lz1000?

No, but we can look at your own together. Please connect the Panasonic to the graphics card and run edid-test.exe on your computer:
https://www.monitortests.com/edid-test.zip

This will create a file named "edid-test.TXT" in the same folder. Please attach this TXT file here.

(01-22-2026 10:31 PM)MUC Wrote: [ -> ]

(01-22-2026 09:36 PM)djsolidsnake86 Wrote: [ -> ]and do you have the edid for the panasonic 65lz1000?

No, but we can look at your own together. Please connect the Panasonic to the graphics card and run edid-test.exe on your computer:
https://www.monitortests.com/edid-test.zip

This will create a file named "edid-test.TXT" in the same folder. Please attach this TXT file here.

DISPLAY\MEIA296\5&27C10180&2&UID4352 (active):
00 FF FF FF FF FF FF 00 34 A9 96 A2 02 01 01 01
00 20 01 03 80 80 48 78 0A DA FF A3 58 4A A2 29
17 49 4B 20 00 00 31 40 01 01 01 01 01 01 01 01
01 01 01 01 01 01 08 E8 00 30 F2 70 5A 80 B0 58
8A 00 C0 1C 32 00 00 1E 02 3A 80 18 71 38 2D 40
58 2C 45 00 E0 0E 11 00 00 1E 00 00 00 FD 00 17
78 0F FF 77 00 0A 20 20 20 20 20 20 00 00 00 FC
00 50 61 6E 61 73 6F 6E 69 63 2D 54 56 0A 01 8C
02 03 76 F0 55 61 60 10 1F 05 14 20 21 22 04 13
03 12 76 75 5D 5E 5F 3F 40 01 2F 0F 07 01 15 07
50 57 07 03 67 7F 07 3F 1E C0 83 0F 00 00 6D 03
0C 00 10 00 38 3C 2F 08 60 01 02 03 6A D8 5D C4
01 78 80 5B 02 30 00 E2 00 CB E3 05 FF 01 E3 0F
03 60 E3 06 0F 01 E5 01 8B 84 90 01 EB 01 46 D0
00 4D 03 72 88 5C 6D 95 6D 1A 00 00 02 01 30 78
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 A9
Override:
00 FF FF FF FF FF FF 00 34 A9 96 A2 02 01 01 01
00 20 01 03 80 80 48 78 0A DA FF A3 58 4A A2 29
17 49 4B 20 00 00 31 40 01 01 01 01 01 01 01 01
01 01 01 01 01 01 08 E8 00 30 F2 70 5A 80 B0 58
8A 00 C0 1C 32 00 00 1E 02 3A 80 18 71 38 2D 40
58 2C 45 00 E0 0E 11 00 00 1E 00 00 00 FD 00 17
78 0F FF 77 00 0A 20 20 20 20 20 20 00 00 00 FC
00 50 61 6E 61 73 6F 6E 69 63 2D 54 56 0A 01 8C
02 03 76 F0 55 61 60 10 1F 05 14 20 21 22 04 13
03 12 76 75 5D 5E 5F 3F 40 01 2F 0F 07 01 15 07
50 57 07 03 67 7F 07 3F 1E C0 83 0F 00 00 6D 03
0C 00 10 00 38 3C 2F 08 60 01 02 03 6A D8 5D C4
01 78 80 5B 02 30 00 E2 00 CB E3 05 FF 01 E3 0F
03 60 E3 06 0F 01 E5 01 8B 84 90 01 EB 01 46 D0
00 4D 03 72 88 5C 6D 95 6D 1A 00 00 02 01 30 78
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 A9
DISPLAY\GSM81CD\5&27C10180&2&UID4352:
00 FF FF FF FF FF FF 00 1E 6D CD 81 01 01 01 01
01 21 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26
0F 50 54 21 08 00 31 40 45 40 61 40 71 40 81 80
D1 C0 01 01 01 01 08 E8 00 30 F2 70 5A 80 B0 58
8A 00 C0 1C 32 00 00 1E 6F C2 00 A0 A0 A0 55 50
30 20 35 00 80 68 21 00 00 1E 00 00 00 FD 00 18
78 1E FF 77 00 0A 20 20 20 20 20 20 00 00 00 FC
00 4C 47 20 54 56 20 53 53 43 52 32 0A 20 01 54
02 03 6C 70 5D 61 60 76 75 66 65 DB DA 10 1F 04
13 05 14 03 02 12 20 21 22 15 5D 5E 5F 62 63 64
3F 40 32 09 57 07 15 07 50 57 07 01 3D 1E C0 5F
7E 07 67 04 03 6E 03 0C 00 20 00 B8 44 2C 00 80
01 02 03 04 6D D8 5D C4 01 78 80 6B 43 28 78 D3
33 05 E2 00 CF E3 05 C0 00 E3 06 0D 01 E2 0F FF
EB 01 46 D0 00 48 22 6D 85 60 6E 95 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0D
Override:
00 FF FF FF FF FF FF 00 1E 6D CD 81 01 01 01 01
01 21 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26
0F 50 54 21 08 00 31 40 45 40 61 40 71 40 81 80
D1 C0 01 01 01 01 08 E8 00 30 F2 70 5A 80 B0 58
8A 00 C0 1C 32 00 00 1E 6F C2 00 A0 A0 A0 55 50
30 20 35 00 80 68 21 00 00 1E 00 00 00 FD 00 18
78 1E FF 77 00 0A 20 20 20 20 20 20 00 00 00 FC
00 4C 47 20 54 56 20 53 53 43 52 32 0A 20 01 54
02 03 6C 70 5D 61 60 76 75 66 65 DB DA 10 1F 04
13 05 14 03 02 12 20 21 22 15 5D 5E 5F 62 63 64
3F 40 32 09 57 07 15 07 50 57 07 01 3D 1E C0 5F
7E 07 67 04 03 6E 03 0C 00 20 00 B8 44 2C 00 80
01 02 03 04 6D D8 5D C4 01 78 80 6B 43 28 78 D3
33 05 E2 00 CF E3 05 C0 00 E3 06 0D 01 E2 0F FF
EB 01 46 D0 00 48 22 6D 85 60 6E 95 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0D

(01-22-2026 09:36 PM)djsolidsnake86 Wrote: [ -> ]but when i open a dv video on mpc hc with mpc video renderer and the option set to prefer dv over pq the monitor go always in hdr mode

That's what I meant.

Windows and any other PC operating system cannot output a Dolby Vision signal, as is common with Ultra HD Blu-ray players or streaming boxes.

The MPC Video Renderer can extract some of the Dolby Vision information from files to make the most of what can be output via an HDR10 layer. This is also documented on GitHub: https://github.com/clsid2/mpc-hc/issues/2869

Quote:DV is converted into HDR or tonemapped to SDR (depending on your settings).
It does not support outputting DV directly to your screen.

Dolby Vision is a proprietary technology that is not publicly documented. Therefore, if a graphics driver were to output a genuine Dolby Vision signal without a license and Digital Rights Management (DRM), it would be a violation of Dolby's terms and conditions and would be subject to legal action. The necessary protected video path for Dolby Vision is only available on Android and proprietary operating systems (Apple TV, Xbox firmware). Microsoft's DirectX architecture does not meet these protection requirements.

HDR certification = Dolby Vision on Windows initially only tells the operating system to use the information from the Dolby VSVDB for tone mapping (color primaries and luminance values). Microsoft's "Dolby Vision Extensions" presumably allow the Microsoft Edge browser and the Microsoft "Movies & TV" app to access non-visible Microsoft components within DirectShow. The exact outcome is unknown. However, it certainly doesn't match the Dolby Vision signals of a true Ultra HD Blu-ray player.

Unfortunately, I don't even know the difference between these two:
https://apps.microsoft.com/detail/9pltg1...n-us&gl=US
https://apps.microsoft.com/detail/9mvmz9...n-us&gl=US

I know your LG TV displays the Dolby Vision logo. However, a detailed analysis of the signal would reveal that essential information is missing. Please see for yourself. There is an HDMI Diagnostics mode on LG TVs you can access yourself:

• Open the settings of the TV by pressing on the gear icon on the remote.
• Highlight or move the pointer over the All Settings option and open all settings.
• General > Programmes
• Move the pointer or highlight Programme Tuning & Settings, don't klick it.
• Press the „1“ key on the remote five times quickly.
• Select "More" at the very bottom right.
  

A diagnostic screen titled "HDMI Diagnostics" appears. In the upper left corner, under "General", it says "HDR Type: DolbyLL." This stands for Low Latency Dolby Vision (LLDV). LLDV means that the source device (the graphics card) performs tone mapping. The LLDV output curve largely corresponds to the HDR10 curve. This is called Perceptual Quantizer (PQ). Therefore, these two modes (LLDV<>HDR10) are difficult for human perception to distinguish.

However, true Dolby Vision would require a Vendor Specific Info Frame (VSIF) to be included in the signal sent by the graphics card. You can see this on the diagnostic screen in the middle on the right, where all values are 0, even when playing a generic Dolby Vision demo. If you had an AV receiver between the graphics card and the TV, the receiver would show you HDR10 in its signal diagnostics, but not Dolby Vision.

We don't know exactly what Microsoft is doing with Dolby Vision here. It might offer some benefits for games and apps explicitly created and advertised for this „PC Dolby Vision interface“, but it doesn't correspond to what we know as Dolby Vision movies.

@ToastyX: Regarding CRU, it would be useful to make the Dolby VSVDB editable, at least for the interface definition. I think the information in my post above should be sufficient for that.

Drop-down list for the interface?
Two Option buttons for the bit depth (either 10 OR 12 bits) with check-box to activate?

---

(01-22-2026 09:36 PM)djsolidsnake86 Wrote: [ -> ]panasonic 65lz1000?

Please import the attached file in the same way as before. Make sure that "Panasonic-TV (active)" is listed as the device at the top of CRU when you import.