sanma 0 Posted January 29 Hello, I build a custom kernel using the following steps on tinkerboard 2S, but there is no sound from the HDMI-connected display. (build almost according to Wiki - Developer Guide) (1 to 3 were executed on ubuntu-x86_64) 1.source download $ repo init -u https://github.com/TinkerBoard-Linux/rockchip-linux-manifest.git -b linux5.10-rk3399-debian11 $ repo sync 2.docker start $ cd linux5.10-rk3399-debian11 $ ./docker_builder/docker-builder-run.sh 3.build $ ./build.sh rockchip_rk3399_tinker_board_2_debian_defconfig $ ./build.sh 4.bring kernel/boot.img to tinkerboard 2S launched using the released Tinker Board 2/2S Debian 11 (kernel 5.10) V3.0.11 and replace the kernel $ sudo dd if=boot.img of=/dev/mmcblk1p4 $ sudo reboot Tinker Board 2/2S Debian 11 (kernel 5.10) V3.0.11 leave it as is, there will be sound from the HDMI-connected display, but replace it with the custom kernel, there will be no sound. $ speaker-test -D plughw:1,0 -t sine -f 440 How can I output sound from an HDMI-connected display using custom kernel (5.10)? Share this post Link to post Share on other sites
tooz 52 Posted January 30 hello @sanma, i've uploaded a folder named 'audio patches for tinker board 2s', please apply the three patches in the folder to enable hdmi audio output: https://www.asuswebstorage.com/navigate/a/#/s/7AC916CB836740359132FEDCC45B06194 Share this post Link to post Share on other sites
sanma 0 Posted January 31 hello @tooz, HDMI audio worked. thank you. Share this post Link to post Share on other sites
