** 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 Kernel Packages, which is subscribed to linux in 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 Status in HWE Next: New Status in linux package in Ubuntu: Incomplete Bug description: [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. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1855666/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
