** 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 Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1860248 Title: No sof soundcard for 'ASoC: CODEC DAI intel-hdmi-hifi1 not registered' after modprobe sof Status in HWE Next: New Status in linux package in Ubuntu: Incomplete Bug description: [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%. [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. [Test Case] We test this patch, the issue could be reproduced anymore in 100 times reboot. [Regression Risk] Low, Intel released the patch to us, and we already did large numbers of audio test in the oem project. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1860248/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
