** Description changed: - On the machine: + [Impact] + When we boot the kernel on a Dell machchine which has a discrete + nvidia graphic card, the sof driver will fail to initialize sometimes, + and after investigation, we found if let nvidia hdmi audio load the + codec driver first, the sof driver will fail to initialize 100%. - cd /lib/modules/5.0.0-1033-oem-osp1/kernel/sound/soc/sof + [Fix] + Intel release a patch to fix this issue, after applying this patch, + the sof driver could work even the nividia hdmi audio initializes + first. - mv sof-pci-dev.ko sof-pci-dev.ko-bak - sudo reboot + [Test Case] + We test this patch, the issue could be reproduced anymore in + 100 times reboot. - after booting up, please check nv hdmi, it is initialized successfully - (check /proc/asound/cards) - - Then cd /lib/modules/5.0.0-1033-oem-osp1/kernel/sound/soc/sof - - mv sof-pci-dev.ko-bak sof-pci-dev.ko - - sudo modprobe sof-pci-dev - - check dmesg, you will find the sof driver fails to initialize: - - skl_hda_dsp_generic skl_hda_dsp_generic: ASoC: CODEC DAI intel-hdmi- - hifi1 not registered + [Regression Risk] + Low, Intel released the patch to us, and we already did large + numbers of audio test in the oem project.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1860248 Title: No sof soundcard for 'ASoC: CODEC DAI intel-hdmi-hifi1 not registered' after modprobe sof To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1860248/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
