** Description changed: - This bug is for tracking purpose. + [Impact] + We have integrated the alsa sof driver in the oem-osp1 kernel, and + when we tested the hdmi audio function on the docking station, we + found if the machine use sof driver, the hdmi audio on the docking + station can't work. + + [Fix] + Intel wrote patches to let sof driver to choose hda hdmi codec + driver, then both hdmi on the laptop and on the docking station + worked. + + [Test Case] + ran the kernel with these patches, and in the userspace, we used + the intel updated ucm, then the hdmi audio on the docking station + worked. + + [Regression Risk] + Low, Intel wrote the patches and told us to backport these patches. + In addition, we already tested these patches with 4 oem project bugs, + all worked well.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1855666 Title: alsa/sof: change to use hda hdmi codec driver to make hdmi audio on the docking station work To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1855666/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
