On 02/19/2016 02:39 PM, Giacomo Comes wrote: > Hi, > I have recently bought a Intel Compute Stick and I am having trouble with the audio. > Intel provides a custom Ubuntu release that support audio, but I want to run the > linux distribution of my choice on it (openSUSE 13.2 for the moment). > > In order to have HDMI audio support it is necessary to compile a kernel with this patch > (https://raw.githubusercontent.com/01org/baytrailaudio/master/hdmi_audio_20150319.patch) > provided by Intel for kernel 3.16.7 (https://01.org/ubuntu-hdmi) > > I compiled the openSUSE kernel using the default openSUSE .config plus the following: > CONFIG_SUPPORT_HDMI=y > CONFIG_SND_SOC=m > CONFIG_SND_SOC_INTEL_SST=m > CONFIG_SND_SOC_INTEL_BYT_RT5640_MACH=m > > I booted the new kernel and aplay -l gives this output: > **** List of PLAYBACK Hardware Devices **** > card 0: IntelHDMI [IntelHDMI], device 0: IntelHDMI [IntelHDMI] > Subdevices: 0/1 > Subdevice #0: subdevice #0 > > but when I run: > aplay /usr/share/sounds/alsa/test.wav > the audio plays for .2 seconds and then nothing more. > Sometime it will play later a little bit more and stop again. > At some point these messages appears: > underrun!!! (at least 29325.946 ms long) > underrun!!! (at least 1535.889 ms long) > underrun!!! (at least 3196.213 ms long) > > > I have looked around on google for a hint on how to fix this issue but I found nothing. > Any idea where to look for a solution? > > Attached there are the dmesg and lsmod output for ubuntu > with the working audio and openSUSE 13.2 plus patch > without the working audio. > I can provide any other information you need. There are enough messages that make me believe something is very wrong from the start 19.664486] had: ******** HAD DRIVER loading.. Ver: 0.01.003 [ 19.664549] hdmi_audio_probe dma_mask: 0 [ 19.664937] card->dev is NULL!!!!! Should not be this case [ 19.668176] [drm] mid_hdmi_audio_register: Scheduling HDMI audio work queue [ 19.670745] [drm:i915_had_wq] *ERROR* Checking for HDMI connection at boot Some of us at Intel are trying to clean this up but it'll take time. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
