vskho

@Roman Khudobei I think I have the same, however, I've got sound through HDMI screen, that's the only ALSA source pulseaudio displays. Built-in audiojack does not work. 1 source(s) available. * index: 0 name: <alsa_output.platform-hdmi-sound.stereo-fallback.monitor> driver: <module-alsa-card.c> flags: DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY state: SUSPENDED suspend cause: IDLE priority: 1000 volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / 0.00 dB balance 0.00 base volume: 65536 / 100% / 0.00 dB volume steps: 65537 muted: no current latency: 0.00 ms max rewind: 0 KiB sample spec: s16le 2ch 44100Hz channel map: front-left,front-right Stereo used by: 0 linked by: 0 configured latency: 0.00 ms; range is 0.50 .. 2000.00 ms monitor_of: 0 card: 0 <alsa_card.platform-hdmi-sound> module: 6 properties: device.description = "Monitor of Built-in Audio Stereo" device.class = "monitor" alsa.card = "0" alsa.card_name = "hdmi-sound" alsa.long_card_name = "hdmi-sound" alsa.driver_name = "snd_soc_simple_card" device.bus_path = "platform-hdmi-sound" sysfs.path = "/devices/platform/hdmi-sound/sound/card0" device.form_factor = "internal" device.string = "0" module-udev-detect.discovered = "1" device.icon_name = "audio-card"

@krankes_etwas, yes, I am on 6.1.11 at the moment with DTB compiled from the master branch of linux kernel. I did not do anything specific with the resolution/graphics, it worked out of box for me. As far as I know, `make dtbs` compiles dtc and builds dts to dtbs with it.

@Joeish360 Here is one I use at the moment which has bluetooth, wifi and thermal sensors working: rk3399-rock-4c-plus.dtb

Just to leave a note for someone who would come across As I suspected, the issue was in device tree configuration. I checked DTS files for the rock 4c+ in the corresponding release tag of the mainline kernel source (6.1 in my case), and saw that it had bluetooth config present, similar to Radxa's own kernels. I could not find where does Armbian take their DTSes from. Anyway, things I did: Followed regular steps for building the kernel. To be safe, I went with version of the sources as close to the running kernel version as possible. Built just device tree blobs with `make dbts` in the root of sources. Copied over the generated file (arch/arm64/boot/dts/rockchip/rk3399-rock-4c-plus.dtb) to /boot/dtbs Updated `/boot/armbianEnv.txt` to point `fdtfile` the blob I just put there. Reboot! After this I immediately got bluetooth and sound working, I do not experience any issues with BT keyboard connectivity/speed (as I used to with official legacy 4.4 kernel). P.S.: there are though some things that got broken because of the update. Particularly, I cannot seem to be able to enable the thermal sensor ADC anymore, although, it works fine with DTB shipped by default.

Hello community, I am running Armbian taken from here on Radxa Rock 4c+. Everything I need seems to be in order (including wifi) but there appears to be no bluetooth device present (it is there using Radxa's images which have old kernels though). I tried to find out what could be the reason and noticed that dtb coming with Radxa has this: wireless-bluetooth { uart0-gpios { rockchip,pins = <0x02 0x13 0x00 0xd0>; phandle = <0xf1>; }; }; in pincntrl section and few other bluetooth/uart related bits while one coming with Armbian does not. I am not sure if this is the root cause and what the easiest way to fix it. I would appreciate any pointers on how to make bluetooth work. Thanks