Strange HDR Problem

Hello

I have n100 libreelec. Works perfect on my hisense tv. Hdr works fine.

I got a new panasonic mx800b tv. I can not get hdr to work at all. It does not have the option in player options for hdr. I have tried different cables and hdmi ports. I created an edid.

I have tried ps5 and nvidia shield on the tv and hdr works.

I rang panasonic support and they said it should work as other devices are working.

Wonder if anyone can help.

Many thanks

Just to add, not sure if edid would cause this a problem.

I checked the display info logs after i did getedid create

2024-03-19 11:40:45.319 T:892 error <general>: [display-info] Error parsing EDID:
2024-03-19 11:40:45.319 T:892 error <general>: [display-info] ------------------------------------------
----
2024-03-19 11:40:45.319 T:892 error <general>: [display-info] Block 1, CTA-861 Extension Block:
2024-03-19 11:40:45.319 T:892 error <general>: [display-info] Colorimetry Data Block: Reserved bits MD
0-MD3 must be 0.

Thanks for reply. Just can not get my head round that it works on ps5 and nvidia shield kodi.

i did the edid decode of /sys/class/drm/card0-HDMI-A-1/edid

edid-decode (hex):

00 ff ff ff ff ff ff 00 34 a9 96 a2 00 00 00 00
00 21 01 03 80 a0 5a 78 0e d6 7d a7 54 4e 9c 26
11 47 4a a3 08 00 81 c0 81 00 81 0f 81 40 81 80
95 00 b3 00 d1 c0 04 74 00 30 f2 70 5a 80 b0 58
8a 00 40 84 63 00 00 1e 02 3a 80 18 71 38 2d 40
58 2c 45 00 40 84 63 00 00 1e 00 00 00 fc 00 50
61 6e 61 73 6f 6e 69 63 2d 54 56 0a 00 00 00 fd
00 17 4c 0f 52 22 00 0a 20 20 20 20 20 20 01 5a

02 03 54 f1 51 90 5d 5f 20 22 04 3c 3e 05 03 02
07 06 01 1f 21 5e 2c 09 7f 07 15 07 50 57 04 03
67 04 03 83 01 00 00 6e 03 0c 00 40 00 38 44 20
00 80 01 03 04 02 e2 00 59 e3 05 03 01 e3 0e 61
66 eb 01 46 d0 00 48 4f 4a 9c 40 27 b4 e6 11 46
d0 00 70 80 0e 1f 00 80 51 00 1e 30 40 80 37 00
dc 84 53 00 00 1c 01 1d 00 72 51 d0 1e 20 6e 28
55 00 40 84 63 00 00 1e 00 00 00 00 00 00 00 a2

----------------

Block 0, Base EDID:
EDID Structure Version & Revision: 1.3
Vendor & Product Identification:
Manufacturer: MEI
Model: 41622
Made in: 2023
Basic Display Parameters & Features:
Digital display
Maximum image size: 160 cm x 90 cm
Gamma: 2.20
RGB color display
Default (sRGB) color space is primary color space
First detailed timing is the preferred timing
Color Characteristics:
Red : 0.6552, 0.3291
Green: 0.3056, 0.6113
Blue : 0.1494, 0.0693
White: 0.2802, 0.2900
Established Timings I & II:
IBM : 720x400 70.081663 Hz 9:5 31.467 kHz 28.320000 MHz
DMT 0x04: 640x480 59.940476 Hz 4:3 31.469 kHz 25.175000 MHz
DMT 0x08: 800x600 56.250000 Hz 4:3 35.156 kHz 36.000000 MHz
DMT 0x09: 800x600 60.316541 Hz 4:3 37.879 kHz 40.000000 MHz
DMT 0x10: 1024x768 60.003840 Hz 4:3 48.363 kHz 65.000000 MHz
Standard Timings:
DMT 0x55: 1280x720 60.000000 Hz 16:9 45.000 kHz 74.250000 MHz
DMT 0x1c: 1280x800 59.810326 Hz 16:10 49.702 kHz 83.500000 MHz
DMT 0x1d: 1280x800 74.934142 Hz 16:10 62.795 kHz 106.500000 MHz
DMT 0x20: 1280x960 60.000000 Hz 4:3 60.000 kHz 108.000000 MHz
DMT 0x23: 1280x1024 60.019740 Hz 5:4 63.981 kHz 108.000000 MHz
DMT 0x2f: 1440x900 59.887445 Hz 16:10 55.935 kHz 106.500000 MHz
DMT 0x3a: 1680x1050 59.954250 Hz 16:10 65.290 kHz 146.250000 MHz
DMT 0x52: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz
Detailed Timing Descriptors:
DTD 1: 3840x2160 30.000000 Hz 16:9 67.500 kHz 297.000000 MHz (1600 mm x 900 mm)
Hfront 176 Hsync 88 Hback 296 Hpol P
Vfront 8 Vsync 10 Vback 72 Vpol P
DTD 2: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (1600 mm x 900 mm)
Hfront 88 Hsync 44 Hback 148 Hpol P
Vfront 4 Vsync 5 Vback 36 Vpol P
Display Product Name: 'Panasonic-TV'
Display Range Limits:
Monitor ranges (GTF): 23-76 Hz V, 15-82 kHz H, max dotclock 340 MHz
Extension blocks: 1
Checksum: 0x5a

----------------

Block 1, CTA-861 Extension Block:
Revision: 3
Underscans IT Video Formats by default
Basic audio support
Supports YCbCr 4:4:4
Supports YCbCr 4:2:2
Native detailed modes: 1
Video Data Block:
VIC 16: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (native)
VIC 93: 3840x2160 24.000000 Hz 16:9 54.000 kHz 297.000000 MHz
VIC 95: 3840x2160 30.000000 Hz 16:9 67.500 kHz 297.000000 MHz
VIC 32: 1920x1080 24.000000 Hz 16:9 27.000 kHz 74.250000 MHz
VIC 34: 1920x1080 30.000000 Hz 16:9 33.750 kHz 74.250000 MHz
VIC 4: 1280x720 60.000000 Hz 16:9 45.000 kHz 74.250000 MHz
VIC 60: 1280x720 24.000000 Hz 16:9 18.000 kHz 59.400000 MHz
VIC 62: 1280x720 30.000000 Hz 16:9 22.500 kHz 74.250000 MHz
VIC 5: 1920x1080i 60.000000 Hz 16:9 33.750 kHz 74.250000 MHz
VIC 3: 720x480 59.940060 Hz 16:9 31.469 kHz 27.000000 MHz
VIC 2: 720x480 59.940060 Hz 4:3 31.469 kHz 27.000000 MHz
VIC 7: 1440x480i 59.940060 Hz 16:9 15.734 kHz 27.000000 MHz
VIC 6: 1440x480i 59.940060 Hz 4:3 15.734 kHz 27.000000 MHz
VIC 1: 640x480 59.940476 Hz 4:3 31.469 kHz 25.175000 MHz
VIC 31: 1920x1080 50.000000 Hz 16:9 56.250 kHz 148.500000 MHz
VIC 33: 1920x1080 25.000000 Hz 16:9 28.125 kHz 74.250000 MHz
VIC 94: 3840x2160 25.000000 Hz 16:9 56.250 kHz 297.000000 MHz
Audio Data Block:
Linear PCM:
Max channels: 2
Supported sample rates (kHz): 192 176.4 96 88.2 48 44.1 32
Supported sample sizes (bits): 24 20 16
AC-3:
Max channels: 6
Supported sample rates (kHz): 48 44.1 32
Maximum bit rate: 640 kb/s
Enhanced AC-3 (DD+):
Max channels: 8
Supported sample rates (kHz): 48
Supports Joint Object Coding
Supports Joint Object Coding with ACMOD28
MAT (MLP):
Max channels: 8
Supported sample rates (kHz): 48
Supports Dolby TrueHD, object audio PCM and channel-based PCM
Hash calculation not required for object audio PCM or channel-based PCM
Speaker Allocation Data Block:
FL/FR - Front Left/Right
Vendor-Specific Data Block (HDMI), OUI 00-0C-03:
Source physical address: 4.0.0.0
DC_36bit
DC_30bit
DC_Y444
Maximum TMDS clock: 340 MHz
Extended HDMI video details:
HDMI VICs:
HDMI VIC 1: 3840x2160 30.000000 Hz 16:9 67.500 kHz 297.000000 MHz
HDMI VIC 3: 3840x2160 24.000000 Hz 16:9 54.000 kHz 297.000000 MHz
HDMI VIC 4: 4096x2160 24.000000 Hz 256:135 54.000 kHz 297.000000 MHz
HDMI VIC 2: 3840x2160 25.000000 Hz 16:9 56.250 kHz 297.000000 MHz
Video Capability Data Block:
YCbCr quantization: No Data
RGB quantization: Selectable (via AVI Q)
PT scan behavior: Always Overscanned
IT scan behavior: Always Underscanned
CE scan behavior: Always Overscanned
Colorimetry Data Block:
xvYCC601
xvYCC709
Reserved MD0
YCbCr 4:2:0 Video Data Block:
VIC 97: 3840x2160 60.000000 Hz 16:9 135.000 kHz 594.000000 MHz
VIC 102: 4096x2160 60.000000 Hz 256:135 135.000 kHz 594.000000 MHz
Vendor-Specific Video Data Block (Dolby), OUI 00-D0-46:
Version: 2 (12 bytes)
Supports global dimming
DM Version: 4.x
Backlt Min Luma: 100 cd/m^2
Interface: Standard + Low-Latency
Supports 10b 12b 444: Not supported
Target Min PQ v2: 180 (0.04555910 cd/m^2)
Target Max PQ v2: 2640 (385 cd/m^2)
Unique Rx, Ry: 0.64062500, 0.33593750
Unique Gx, Gy: 0.30468750, 0.62500000
Unique Bx, By: 0.15234375, 0.04687500
Vendor-Specific Audio Data Block (Dolby), OUI 00-D0-46:
Version: 1 (7 bytes)
Height speaker zone present
Surround speaker zone present
Center speaker zone present
Detailed Timing Descriptors:
DTD 3: 1280x768 59.870228 Hz 5:3 47.776 kHz 79.500000 MHz (1500 mm x 900 mm)
Hfront 64 Hsync 128 Hback 192 Hpol N
Vfront 3 Vsync 7 Vback 20 Vpol P
DTD 4: 1280x720 60.000000 Hz 16:9 45.000 kHz 74.250000 MHz (1600 mm x 900 mm)
Hfront 110 Hsync 40 Hback 220 Hpol P
Vfront 5 Vsync 5 Vback 20 Vpol P
Checksum: 0xa2 Unused space in Extension Block: 7 bytes

Is there a way to override to enable hdr?

Thanks for the info.

I am taking the tv back. After speaking to Panasonic tech, they ended up saying it is not compatible (i even explained edid problem). There is no signal plus or anything like that e.g. enhanced format etc. It also runs fireos, which tbh is rubbish. I think lesson learned is do not buy panasonic tvs. This is a new model as well.