Posts by chewitt

  • Libreelec update from 12.0.2 on RPi4

    Quote from tokul

    I know that I can manually go to 12.2, but I want to see normal update working.

    LE will auto-update within the same release, e.g. 12.0.0 > 12.0.1 > 12.0.2 but not 12.0.x to 12.2.x as 12.2 contains breaking changes for some hardware: not RPi boards, but there's a single rule that applies to all to avoid confusion.

    TL/DR: all is working correctly, do a manual update.

  • Kodi hangs after every video ends, or on pause or stop.

    For kicks, update to the latest LE12.2 nightly. It probably doesn't fix anything, but you never know.

    On the assumption it doesn't: enable debug logging in Kodi, then reboot to get a clean log, then demonstrate the problem, then SSH in and run "pastekodi" to pastebin logs and generate a URL you can share here. The logfiles dir will not show anything; it is 'special' and auto-generates a set of logs when (and only when) accesed over SMB. However that results in you creating and uploading a zip archive to the forum that everyone on staff avoids investigating because we have to download, unzip, and open files. It sounds petty, but repeat it 10,000 times and the novelty wears off vs. just clicking a URL link.

  • [RPi3] USB Wifi dongle won't work properly on 12.2

    The realtek device probes first and iwd sees this as phy0 and the internal Broadcom chip as phy1

    Then I see Jun 26 09:44:20 KODI-Kitchen iwd[382]: NEW_INTERFACE failed: Too many open files in system

    After this point I only see ConnMan mentioning wlan0 which has the MAC address of the Broadcom chip. The "Too many open files in system" failure is unusual and normally indicates an internal bug that results in a process leaking file handles; then at some point the OS hits the 'ulimit' value (in LE, this is 1024).

    The first thing I would do is bump up to an LE13 nightly which has newer everything to see if that magically fixes some underlying issue in drivers or iwd or connman. If that doesn't fix it, then this should raise the 'open files' ulimit:

    Code
    echo "ulimit -n 1000000" > /storage/.config/autostart.sh

    Then reboot and see if that changes anything? (if no, share a log again).

  • [RPi3] USB Wifi dongle won't work properly on 12.2

    Quote from tp3580

    Has support for this adapter (RTL8192EU) been removed?

    The original RTL8192EU vendor driver was dropped in LE11, but in doing that we switched over to the in-kernel RTL8XXXU driver and that remains enabled in the kernel config so LE12 'should' be the same as LE12.2 (other then the kernel being newer).

    With the onboard WiFi enabled (so you can access) connect the USB WiFi stick and reboot to get a clean boot log, then SSH in and run "journalctl | paste" and share the URL here so we can see if anything interesting is logged (or not).

  • Hauppauge WinTV-NOVA-S2 tuner not recognised

    Quote from jcjefferies

    Is there something else I should be doing?

    Sharing a log file?

    NB: These days we are not too enthusiastic about adding patches that we can't drop in the future with a kernel bump, so if there are things in Issues/Forum threads that work (meaning, they need to be tested and confirmed first) someone needs to submit them to the linux-media mailing list. As long as there are signs that patch(es) will be merged upstream we will be happy to pick/backport the changes until some future kernel bump drops them. Firmware is more easily handled as we mostly have our own collection(s) and can add things to our own repo.

    Also note that I'm unable to test any form of DVB hardware (as no DVB-T/DVB-S feeds) so I depend on being told what's needed.

  • Libreelec 11, 12 and 12.2 doesnt work on S905 "Minix Neo U1" Box. Why?

    Kodi uses a 'compromise' but safe default for software deinterlacing. It's possible (with patching) to make it use other deinterlace algorithms that ffmpeg supports, but older ARM SoC boards like S905 don't have CPU grunt for the fancier ones that give better results. The S905 hardware has a dedicated deinterlace function, but software support for that only exists in the Amlogic vendor codebase that Kodi and LE moved away from. Older LE/CE images are more feature complete.

    DRMPRIME is a zero-copy rendering path (nothing to do with Amazon); meaning we read the video stream and then all processing stages through Kodi, FFMpeg, and kernel drivers; exchange a pointer to the original data in memory instead of reading it from RAM, changing it in some way, then writing back to RAM again. It's more efficient, but it's use requires the kernel hardware decode drivers which are not perfect. The only alternative is to disable hardware decode and use ffmpeg software decode. Playback start and seek on HEVC media then works great, but unless the video bitrate is extremely low you won't have enough CPU grunt to handle 1080p media. If you only need to play SD or 720p media (or have faster hardware like S922X/A311D) it's an option though.

    Nobody is working on the hardware decoders for several years now, so I have no expectations of improvements coming. For some users AMLGX works good-enough. For others not-good-enough. I am not a driver developer so I'm merely keeping the status-quo until either someone appears to do work, or the hardware dies out. S905 is now a decade old so the later is more likely.

  • Power fail corrupts mounted drives

    Quote from jsprenkle

    Hello, any suggestions how to prevent corruption when the power fails?

    Disabling the write cache helps. Mounting read-only helps. Using EXT4 or perhaps BTRFS (with more advanced journaling) instead of NTFS also probably helps. Using hardware RAID helps. We do not support software RAID; there are too many variants and tools and we prefer to avoid the bloat incurred. No filesystem is corruption proof so if you truly want to prevent corruption, prevent the loss of power (Yes, get a UPS).