LibreELEC Rock 4 SE Sundtek Driver Installation problem, need help

  • I am a beginner in libreelec and Rock 4 SE and have a problem installing a Sundtek driver.

    I got LibreELEC-RK3399.arm-10.0.2-rock-pi-4 to work with Kodi and Tvheadend on a Rock 4 SE. However, the driver installation of the Sundtek SkyTV Ultimate Dual (2x DVB-S/S2/S2X) didn't seem to work. The drivers do not appear in the Tvheadend overview.

    Has anyone experience with this hardware and software installation and could help me?

  • stevensen

    regarding the rk3399t and the: LibreELEC-RK3399.arm-10.0.2-rock-pi-4 image found here:

    archive

    did your device work, by just flashing that particular image, besides the sundtek driver? (out of the box, so to speak)

    I´ m asking , because i´´ m considering the rock 4SE , but one other user in here , had issues with a pi 4 release (maybe newer)

    As I understand it, the 3399t soc is a bit slower than the previous 3399, yes?

    kind regards

  • The screenshot shows the T version to be slower than earlier versions; which means it will need a dedicated device-tree file that as a minimum defines the correct CPU opp-points and voltages to be used. If the T version is just a way to recycle low-yield chip that don't clock high enough to be sold as regular non-T chips that'll be the sole difference, although the voltages needed for stable ops might be difference from the regular chips. If it's a deliberate "low power" variant there are likely other minor silicon differences that need to be accounted for. Radxa probably have RK vendor kernels with device-trees that contain that information. I'd argue it's also their responsibility to submit support for the board to the upstream kernel. You might want to have a dig around in the Armbian forum to see if there's any prior-art there as Radxa often target Armbian support for their boards.

  • chewitt

    Finnaly got my rock4se , and I can confirm that the LibreELEC-RK3399.arm-10.0.2-rock-pi-4 works fine with the RK3399-T SOC

    Immediately got an update for 10.0.0.4 and the only difference was a slightly increase in the cpu load from 7% on 10.0.0.2 to 9-11% on 10.0.0.4 . The temperature was 60 degress celcius w/o fan, dropped to 40 degress with heatsinks and 40mm fan

    After some time, it seems the slightly increased cpu load on 10.0.0.4 settled for the same as on 10.0.0.2 , so it was nothing to worry about, it seems.

    The ram load is also 7-9% which is insane compared to my Nvidia Shield, that on Android uses it´´ s max capacity of 3gb ram on load

    (I´´ m aware of Kodi on android is another talk)

    I did get in contact with Adxa customer service , who told me that all rock4 - 3399 images , should work on the 4se without any issues, including Libreelec. But I must admit, that I didn´´ t trust this to be the case , because of the weaker SOC

  • Kodi is not a heavy-CPU application unless you're software decoding lots of media, but using the non-T device-tree means you are over-clocking the board, so you need to ensure it's properly cooled via fan or case.

  • This is the CPU opp-table: https://github.com/torvalds/linux…3399-t-opp.dtsi

    It looks like support for the 4SE board has been submitted and merged upstream: https://patchwork.kernel.org/project/linux-…@collabora.com/ .. although I don't see that in torvalds/master (will become Linux 6.6) yet, bu you should be able to pick/backport those patches onto the Linux 6.5 kernel we use in LE master easily.

    https://wiki.libreelec.tv/development/build-basics

    https://wiki.libreelec.tv/development/git-tutorial