Public bug reported: [Impact] There's an HP desktop doesn't claim to support HDMI audio. [Fix] Use a quirk list to force HDMI audio connection to ignore Connectivity Bit, which is incorrectly set by BIOS.
[Test] With the patch applied, we can find HDMI codec under /proc/asound/card0 and audio playback through HDMI works. [Regression Potential] This fix doesn't bring any functional change other than the targeted platform. The platform in question is not on the market yet so the risk of regression is minimal. ** Affects: hwe-next Importance: Undecided Status: New ** Affects: linux (Ubuntu) Importance: Undecided Status: Invalid ** Affects: linux-oem-5.6 (Ubuntu) Importance: Undecided Status: Invalid ** Affects: linux (Ubuntu Focal) Importance: High Status: Confirmed ** Affects: linux-oem-5.6 (Ubuntu Focal) Importance: High Status: Confirmed ** Tags: oem-priority originate-from-1887354 stella ** Also affects: linux-oem-5.6 (Ubuntu) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Focal) Importance: Undecided Status: New ** Also affects: linux-oem-5.6 (Ubuntu Focal) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Focal) Status: New => Confirmed ** Changed in: linux-oem-5.6 (Ubuntu Focal) Status: New => Confirmed ** Changed in: linux (Ubuntu Focal) Importance: Undecided => High ** Changed in: linux-oem-5.6 (Ubuntu Focal) Importance: Undecided => High ** Changed in: linux (Ubuntu) Status: New => Invalid ** Changed in: linux-oem-5.6 (Ubuntu) Status: New => Invalid ** Tags added: oem-priority originate-from-1887354 stella -- 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/1890441 Title: Fix missing HDMI/DP Audio on an HP Desktop Status in HWE Next: New Status in linux package in Ubuntu: Invalid Status in linux-oem-5.6 package in Ubuntu: Invalid Status in linux source package in Focal: Confirmed Status in linux-oem-5.6 source package in Focal: Confirmed Bug description: [Impact] There's an HP desktop doesn't claim to support HDMI audio. [Fix] Use a quirk list to force HDMI audio connection to ignore Connectivity Bit, which is incorrectly set by BIOS. [Test] With the patch applied, we can find HDMI codec under /proc/asound/card0 and audio playback through HDMI works. [Regression Potential] This fix doesn't bring any functional change other than the targeted platform. The platform in question is not on the market yet so the risk of regression is minimal. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1890441/+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