** Description changed: - This bug is for tracking purpose. + [Impact] + We have a couple of lenovo latops models which have cirrus-logic side + codec between realtek codec and speaker, it plays a role as amplifier, + we need to enable this side-codec, otherwise the speaker can't output + sound. + + [Fix] + Backport codec patches and some i2c and acpi detection patches from + mainline kernel and linux-next + + [Test] + boot the patched kernel, run speaker test, both left and right channel + could work well. + + [Where problems could occur] + If it could introduce regression, it will be on soc wm_adsp codec + drivers, since most of patch are adding new codec drivers, it will + not touch existing codec drivers. If a machine with wm_adsp codec + can't output sound or record sound, it means this SRU introduce + the regression on wm_adsp driver, but this possibility is very + low, since all patches are picked from mainline kernel.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.14 in Ubuntu. https://bugs.launchpad.net/bugs/1965496 Title: alsa: enable the cirrus-logic side-codec to make the speaker output sound Status in HWE Next: New Status in linux package in Ubuntu: In Progress Status in linux-oem-5.14 package in Ubuntu: Invalid Status in linux source package in Focal: Won't Fix Status in linux-oem-5.14 source package in Focal: In Progress Status in linux source package in Jammy: In Progress Status in linux-oem-5.14 source package in Jammy: Invalid Bug description: [Impact] We have a couple of lenovo latops models which have cirrus-logic side codec between realtek codec and speaker, it plays a role as amplifier, we need to enable this side-codec, otherwise the speaker can't output sound. [Fix] Backport codec patches and some i2c and acpi detection patches from mainline kernel and linux-next [Test] boot the patched kernel, run speaker test, both left and right channel could work well. [Where problems could occur] If it could introduce regression, it will be on soc wm_adsp codec drivers, since most of patch are adding new codec drivers, it will not touch existing codec drivers. If a machine with wm_adsp codec can't output sound or record sound, it means this SRU introduce the regression on wm_adsp driver, but this possibility is very low, since all patches are picked from mainline kernel. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1965496/+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
