Posts by S80_UK

    Direct streaming requires CPU power too? Sorry I am new to this

    (My 4k UHD movies are mostly h.264)

    Nothing is free, and something still has to decode the video and audio data and store it in a frame buffer and display it on the screen...


    With a 4k image there are four times as many pixels to generate when decoding the data. Even with compression in the original data, there will still be more data to decode in the source data stream than for a 1080p file. And as mentioned, that Atom processor is very low power, even by Atom standards (it's also 8 years old). Regardless of that, you still have the problem of needing a driver for a suitable USB display adaptor - I very much doubt that exists in an easy to use form, and even if it existed, for LibreELEC you'd possibly have to build your own binary. In my view, it's just not worth it, given that there are other ready build solutions available.


    As mentioned above, a Raspberry Pi 4 could easily do it. If you're only using h.264, you could also look at some other second-hand Intel solutions. For example, a Celeron N3060 can manage 4k @23.967 (and probably at 30 fps as well) with h.264, but absolutely cannot with h.265 since it lacks the hardware acceleration. Newer Intel CPUs (the Gemini Lake platform for example) are relatively affordable and can play full 4k UHD blu-ray rips without issue.

    Also, according to Google, the PiPO X7 has a very low power Atom CPU from 2014 (Atom Z3736F) - probably very inadequate for 4K decoding from h.264 format, and a lot of 4K content uses h.265 which would need some hardware acceleration in the CPU (not present in this old Atom). I would also recommend a much newer device if you are serious about playing 4k content.

    https://ark.intel.com/content/…cache-up-to-2-16-ghz.html

    I would suggest to avoid AMD for this. Intel, Gemini Lake is working well with test builds. I use Pentium Silver N5000 in an MSI Cubi N box with available test builds. Some newer devices are also working will in Intel NUC boxes, but even Gemini Lake is sufficient for the normal 4k MKV rips that I take from my UHD Blurays. I have no experience using Atmos, but I think that is now also supported.


    See this thread... LE11 HDR builds for Intel and AMD


    The mainstream builds from the LE download page are not yet supporting HDR on x86 platforms.

    Only thing is there is an occasional audio dropout when I bitstream- every so often I get a "source is too slow" message when I try to stream off my NAS.

    I see this message too, but without any dropout. For LibreELEC I am using MSI Cubi N with a Pentium Silver N5000 (Gemini Lake) with 8GB RAM. I generally get this message when the 4k video file is already in cache in the NAS (my Unraid server on a gigabit LAN connection). If playing a file for the first time then the message is seldom seen. If I stop playback after a minute and then play the same file again from the beginning, the message will then pop up. It's almost as though the file data arrives too quickly. To me this suggests a possible arithmetic error in the source speed calculation caused by the data for the initial buffer fill operation taking very little time to arrive.

    I bought a Noritake VFD GU140X32F. It can by used with serial or parallel interface and it's HD44780 compatible. I use it with an level shifter (3.3V-5V) and an converter (i2c - parallel).

    Hi. I also have that exact display available from an old project. I would be curious to try to get this working as well. Do you have a link for the I2C to Parallel converter that you are using?

    Celeron j4125 is fine, although I cannot comment on those particular boxes. I even run a Celeron N3060 in one system, which is significantly less powerful, and it has no trouble with 1080p or even 4k, but that older generation won't handle HDR. Note that HDR is not yet supported in the standard LE releases for x86, but there is a series of test builds being worked on over here... RE: Intel true 10bits/HEVC/HDR support... ?

    Not sure why that spec page says HDMI 1.4. Gemini Lake SoC has a built-in HDMI 2.0 controller. HDR is not possible with HDMI 1.4.

    I read about this with other boards that should support HDMI 2 but don't and believe it's a BIOS limitation (possibly set to save compliance testing cost?). HDR does work well, however, and triggers the HDR status icon on my LG OLED TV.


    There's a thread about HDMI compatibility and some systems not supporting 2.0 when they could here... HDMI 2.0/HDCP 2.2 motherboard verification - testers needed : htpc

    AMD G-T52R - CPU Passmark = 177....


    I haven't seen such a slow CPU since the single core Atom 270 back in 2009... You might JUST manage to get LibreELEC to run on a single box as a stand-alone device (forget streaming from another machine), but it would be hopelessly less capable than something cheap and simple such as a Raspberry Pi 3 or 4.


    The graphics is apparently Radeon HD6310 which is of similarly low performance by todays standards.


    If they work, great. If not, then it's probably time for the e-waste recyclers.

    To rule out problems with the power supply, I replaced the 3A USB C power supply with the USB C charger from my notebook. Doesn't make any difference either.

    That may not prove anything. Most notebooks' USB-C power supplies only provide limited power at 5V. They use the smart capability of USB-C to change voltage and may then switch up to much higher voltage and current. I don't think that the Pi does this smart voltage changing, and so it might still be constrained by limited power availability unless the 5V capability of your other supply at least matches that of the Pi power supply. Certainly your screens shots suggest a hardware or power related issue.