Posts by sebden

  • After switching from HDMI 2.0 TV to HDMI 2.1 no HDR anymore ;(

    Hello,

    i'm having a little trouble with my Libreelec setup.

    Libreelec HTPC = Asus Prime H310i-Plus 2.0 MoBo (HDMI 1.4), Intel Core i5-9400 with UHD 630 Graphics, Libreelec 12.2.1

    TV = Samsung GQ65S95F (2025 Top Model with HDMI 2.1) with missing HDR now

    old TV = Sony 55XH9505 (2019 Top Model with HDMI 2.0) with 4K, HDR working well !

    My challenge: After switching the TV, there is no HDR support anymore. ;(

    The TV is, imho, configured right. HDMI (1) is set to extended signal. Kodi sees resolutions up to 4k (only 30Hz) with FHD up to 120Hz is possible. At the moment I'm using the suggested 1920x1080 @ 60Hz. Adapt Refresh Rate to media is, as always, activated (tried always and start/stop).

    What I have tried so far:

    - other HDMI cable, mostly sure that it supports 2.0

    - Samsung with and without extended Signal with reboots of TV and HTPC

    - different HDMI ports tested (1 and 2)

    - different movies and test movies from Sony and LG

    - different GUI resolutions, refresh rates, adapt refresh rate to media modes

    What i have gathered so far:

    With the help of ChatGPT i can confirm via cat /sys/class/drm/card0-HDMI-A-1/edid > /storage/edid.bin and ls -l /storage/edid.bin that the TV correctly reports HDR:

    HDR Static Metadata Data Block:
    SMPTE ST2084
    Hybrid Log-Gamma

    BT2020YCC
    BT2020RGB

    HDR10+

    Long output:

    Code
    Video Capability Data Block: YCbCr quantization: No Data RGB quantization: Selectable (via AVI Q) PT scan behavior: No Data IT scan behavior: Supports both over- and underscan CE scan behavior: Supports both over- and underscan Colorimetry Data Block: xvYCC601 xvYCC709 BT2020YCC BT2020RGB Gamut Boundary Description Metadata Profile P0 Vendor-Specific Data Block (HDMI), OUI 00-0C-03: Source physical address: 1.0.0.0 Supports_AI DC_36bit DC_30bit DC_Y444 Maximum TMDS clock: 340 MHz Supported Content Types: Game Extended HDMI video details: HDMI VICs: HDMI VIC 1: 3840x2160 30.000000 Hz 16:9 67.500 kHz 297.0 00000 MHz HDMI VIC 2: 3840x2160 25.000000 Hz 16:9 56.250 kHz 297.0 00000 MHz HDMI VIC 3: 3840x2160 24.000000 Hz 16:9 54.000 kHz 297.0 00000 MHz HDMI VIC 4: 4096x2160 24.000000 Hz 256:135 54.000 kHz 297.0 00000 MHz Vendor-Specific Data Block (HDMI Forum), OUI C4-5D-D8: Version: 1 Maximum TMDS Character Rate: 600 MHz SCDC Present Max Fixed Rate Link: 3 and 6 Gbps per lane on 3 lanes, 6, 8 and 10 Gbps on 4 lanes Supports UHD VIC Supports 12-bits/component Deep Color 4:2:0 Pixel Encoding Supports 10-bits/component Deep Color 4:2:0 Pixel Encoding Supports VESA DSC 1.2a compression Supports Compressed Video Transport for 4:2:0 Pixel Encoding Supports 12 bpc Compressed Video Transport Supports 10 bpc Compressed Video Transport DSC Max Slices: up to 8 slices and up to (340 MHz/Ksliceadjust) pixel c lock per slice DSC Max Fixed Rate Link: 3 and 6 Gbps per lane on 3 lanes, 6 Gbps on 4 lanes Maximum number of bytes in a line of chunks: 6144 HDR Static Metadata Data Block: Electro optical transfer functions: Traditional gamma - SDR luminance range SMPTE ST2084 Hybrid Log-Gamma Supported static metadata descriptors: Static metadata type 1 YCbCr 4:2:0 Capability Map Data Block: VIC 97: 3840x2160 60.000000 Hz 16:9 135.000 kHz 594.000000 M Hz VIC 96: 3840x2160 50.000000 Hz 16:9 112.500 kHz 594.000000 M Hz VIC 102: 4096x2160 60.000000 Hz 256:135 135.000 kHz 594.000000 M Hz VIC 101: 4096x2160 50.000000 Hz 256:135 112.500 kHz 594.000000 M Hz VIC 117: 3840x2160 100.000000 Hz 16:9 225.000 kHz 1188.000000 M Hz VIC 118: 3840x2160 120.000000 Hz 16:9 270.000 kHz 1188.000000 M Hz VIC 218: 4096x2160 100.000000 Hz 256:135 225.000 kHz 1188.000000 M Hz VIC 219: 4096x2160 120.000000 Hz 256:135 270.000 kHz 1188.000000 M Hz Vendor-Specific Video Data Block (HDR10+), OUI 90-84-8B: Application Version: 1 Full Frame Peak Luminance Index: 0 Peak Luminance Index: 0 Detailed Timing Descriptors: DTD 3: 2560x1440 119.997589 Hz 16:9 182.996 kHz 497.750000 MHz (1872 mm x 1053 mm) Hfront 48 Hsync 32 Hback 80 Hpol P Vfront 3 Vsync 5 Vback 77 Vpol N Checksum: 0xc4 Unused space in Extension Block: 3 bytes ---------------- Block 2, 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: 0 Vendor-Specific Video Data Block, OUI 04-75-03: 01 10 00 00 00 00 00 00 40 00 '........@.' Checksum: 0x3c Unused space in Extension Block: 108 bytes ---------------- Block 3, 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: 0 DisplayID Type X Video Timing Data Block: VTDB 1: 3840x2160 164.991488 Hz 16:9 392.515 kHz 2129.000000 MH z (aspect 16:9, no 3D stereo) Detailed Timing Descriptors: DTD 4: 1920x1080 164.917418 Hz 16:9 192.788 kHz 401.000000 MHz Hfront 48 Hsync 32 Hback 80 Hpol P Vfront 3 Vsync 5 Vback 81 Vpol N Checksum: 0x84 Unused space in Extension Block: 96 bytes

    Hope someone undestands this :dodgy: I rely on ChatGPTs opinion here.

    But if i look under libreelec -> system information -> graphics I see "Display supported HDR modes: none" (I'm using german interface and translate the points freely).

    ChatGPT mentions, that the Samsung S95F has so many more options in the EDID, that my UHD 630 gets overwhelmed and cuts HDR support. Maybe a driver or kernel issue?

    I would be very glad if someone has an idea other than swap the hardware (GPU is expensive, must be Low Profile - or switch the whole MoBo).

    Thank you in advance for every input/help/idea/hack and so on ;)