[x86-64][CroqueMr Builds] Dolby Vision w/FEL, HDR10+, and 3D

    Quote from elstr

    Sorry if it's a stupid question but any chance someone has tested DV and or 3d with a 3500U? Very cost effective at the moment.

    Update this has worked perfectly! Thank you so much I don't know what to say, I've been dreaming for a solution like this. 270AUD and I've now got 3d and Dolby Vision. For those interested this is what I'm using ORIGIMAGIC C5 Mini PC AMD Ryzen 5 3500U Quad Core 8GB DDR4 RAM 256GB NVMe SSD Window 11 Pro Dual HDMI 4K Triple Display Dual USB-C Full Function PD WiFi 5 BT5.0 Gigabit LAN: Minis: Amazon.com.au

    AMD hardware older than DCN... I have a Hades Canyon NUC (i7-8705G) with the Radeon RX Vega M GL. All its HDMI/DP outputs come from the Vega M, and I believe its display engine is DCE-generation (Polaris-based), not DCN. Claude reading linux-9920-amd-dcn-native-dv, dv_dcn_supported() only allows DCN versions, so I assume the patch rejects this GPU and it falls under "Other hardware"?

    Is there a technical reason DCE can't do it, or is it just that you haven't tested it? If it's only the allowlist, would you consider adding DCE 11.x for testing, or point me to what would break?

    Thanks again for all your work on this.

    Quote from MatteN

    Beta 3 is very smooth on N100, its way better than Beta 2 was on N150.

    I felt that too. I didn't get any stuttering using the player interface (or information screen) while playing a DV P7 title.

    Mine is a DDR5 model, not sure if that matters.

    Quote from rthorntn

    AMD hardware older than DCN... I have a Hades Canyon NUC (i7-8705G) with the Radeon RX Vega M GL. All its HDMI/DP outputs come from the Vega M, and I believe its display engine is DCE-generation (Polaris-based), not DCN. Claude reading linux-9920-amd-dcn-native-dv, dv_dcn_supported() only allows DCN versions, so I assume the patch rejects this GPU and it falls under "Other hardware"?

    Is there a technical reason DCE can't do it, or is it just that you haven't tested it? If it's only the allowlist, would you consider adding DCE 11.x for testing, or point me to what would break?

    Thanks again for all your work on this.

    The primary technical constraint is me. There is no allowlist, it's the opposite, I need to tweak the drivers for each CPU category to adjust the HDMI signaling and create DV signaling. Therefore, I am prioritizing widely used hardware first. I prefer to start by ensuring a good support for popular CPUs rather than extending compatibility to all models and compromising on quality. Especially with a CPU as uncommon and niche as yours, I anticipate needing to handle quite a few nuances to ensure proper support.


    I'm not sure which drivers your GPU relies on, so I prefer not to confirm anything. I don't plan on adding support for it myself it's complicated to do it properly blindly without the hardware, but feel free to try modding the driver with Claude if you have the hardware and if claude can test directly your GPU and LE it will be simple. If you manage to enable DV, send me your code and the kodi.log file so I can verify everything is fine, and I'll merge your driver into the global build.

    Edited once, last by CroqueMr (October 14, 2026 at 2:42 PM).

    Quote from rthorntn

    With FEL, no issues?

    Thanks.

    Zero issues with MI Dead Reckoning (Full FEL) and Dune Part 2 (not full). Tried on TCL tv in DV and more amazingly on my TW7100/3800 projector with dynamic tone mapping to HDR10!! Need to put an extra stick of ram for dual channel so I can use expert dynamic tone mapping to my target nits, checking FB marketplace. Even without it this is absolutely incredible and I can retire my shield pro and janky pc 3d setup that never work. Will be donating shortly thank you so much. Also note full passhthrough of DTS:X and TrueHD Atmos are working.

    Quote from elstr

    Zero issues with MI Dead Reckoning (Full FEL) and Dune Part 2 (not full). Tried on TCL tv in DV and more amazingly on my TW7100/3800 projector with dynamic tone mapping to HDR10!! Need to put an extra stick of ram for dual channel so I can use expert dynamic tone mapping to my target nits, checking FB marketplace. Even without it this is absolutely incredible and I can retire my shield pro and janky pc 3d setup that never work. Will be donating shortly thank you so much. Also note full passhthrough of DTS:X and TrueHD Atmos are working.

    Only missing thing is the vertical shift doesn't work (which I use for my custom masking to shift image down and hide black borders with masking). Can't find where to donate both for DV and 3d?

    Quote from elstr

    Zero issues with MI Dead Reckoning (Full FEL) and Dune Part 2 (not full). Tried on TCL tv in DV and more amazingly on my TW7100/3800 projector with dynamic tone mapping to HDR10!! Need to put an extra stick of ram for dual channel so I can use expert dynamic tone mapping to my target nits, checking FB marketplace. Even without it this is absolutely incredible and I can retire my shield pro and janky pc 3d setup that never work. Will be donating shortly thank you so much. Also note full passhthrough of DTS:X and TrueHD Atmos are working.

    Don't buy extra RAM, it won't help. This conversion process is just a draft in Beta3 and will be optimized in Beta4, maybe your hardware will be good enough

    I've already updated the basic HDR10 conversion in my internal beta4 preview build, but since it's heavy on the GPU, I think low end chips like the N100 won't handle it, but we will see after the rebuild of the pipepline. In the next release Beta4 the performances and optimization will not moved we will be close to the R1.0.0 stable. Important point, in Expert mode, tone mapping is managed by the rendering engine in LE, so be sure to disable tone mapping on your TV/projector.

    Determining whether a CPU/iGPU is powerful enough is tricky. Performance relies heavily on the rendering engine in the GPU, which is hard to benchmark, and other limiting factors are still not perfectly understand.

    I tried a lot of videos of all codecs and DV and HDR, so far the only ones that have a problem is the UHD BR mkvs of the new Stranger Things UHD BR discs. If you try to resume it just show a black screen and just stay there no sound or image. If I start from the beginning I see the first 15 seconds approximately then it's a black screen frozen with no image or sound like when you resume.

    Maybe others that have those can test to see if they have the same thing? I didn't see anything special in the metadata compared to other DV movies.

    It is DV FEL though, but other DV FEL works flawlessly.

    I can procure a short clip if wanted and also I'll try to get a kodi.log

    Quote from Creator44

    I tried a lot of videos of all codecs and DV and HDR, so far the only ones that have a problem is the UHD BR mkvs of the new Stranger Things UHD BR discs. If you try to resume it just show a black screen and just stay there no sound or image. If I start from the beginning I see the first 15 seconds approximately then it's a black screen frozen with no image or sound like when you resume.

    Maybe others that have those can test to see if they have the same thing? I didn't see anything special in the metadata compared to other DV movies.

    It is DV FEL though, but other DV FEL works flawlessly.

    I can procure a short clip if wanted and also I'll try to get a kodi.log

    Interesting, please send the log file I will try to see if I can fix it for the next release.

    Quote from elstr

    Zero issues with MI Dead Reckoning (Full FEL) and Dune Part 2 (not full). Tried on TCL tv in DV and more amazingly on my TW7100/3800 projector with dynamic tone mapping to HDR10!! Need to put an extra stick of ram for dual channel so I can use expert dynamic tone mapping to my target nits, checking FB marketplace. Even without it this is absolutely incredible and I can retire my shield pro and janky pc 3d setup that never work. Will be donating shortly thank you so much. Also note full passhthrough of DTS:X and TrueHD Atmos are working.

    A small teasing for next release in the attachments

    Very happy with this result, performance gain is stupidly massive on DV to HDR10, a N100 will therefore be able to handle all the features of the stable release without dropping a single frame.
    The only limitation will be HDR<->DV conversion for movies at >50fps. That’s acceptable.

    Quote from shawnstoked

    I was able to eek out some better performance on the 3500u box I have but still get huge spikes bringing up the OSD. Anyone else still seeing that issue?

    That's normal, as the GUI puts a heavy load on the GPU. We worked with Dangerouslaser to include dedicated optimizations for this in beta 3.

    Beta 4 won't include additional changes for this. However, I plan to investigate AMD specific optimizations next week. Intel is currently performing slightly better with FEL, whereas AMD has a limitation I'm trying to fix.

    Quote from Creator44

    CroqueMr Do you think you can implement HDR10+ to DV conversion like they did in CoreElec's custom builds? No rush, just wondering.

    It is in my backlog but this will be adressed after the release of R1.0.0 Stable.


    I would particularly like to render Dolby Vision in HDR10+ for Samsung TVs (algo are different, picture will not be the same but we can try something), Since I don't own a HDR10+ TV, I won't be working on that.

    Edited once, last by CroqueMr: Merged a post created by CroqueMr into this post. (October 14, 2026 at 9:39 PM).

    Thanks a lot for all the work on this. I am just trying this out today, but strangely every time after rebooting libreelec for some reason Dolby Vision content stops working while HDR/SDR all keeps on playing fine. It seems the issue probably happens when trying to trigger Dolby Vision mode on my LG C5 as I do hear the audio playing but video output seems stuck on the Kodi interface it's pretty weird.. The only warning I can find in kodi.log is this but that's probably not saying a lot.

    OutputPicture - timeout waiting for buffer

    Using this Ryzen 7 7840HS with 780M gpu. Any idea what might be causing this or how even how to better troubleshoot ?