** Description changed: [SRU Justifications] ========== firmware-sof ========== [Impact] Audio doesn't work on Dell new XPS laptops on Intel MTL platforms. [Fix] Kernel driver, ALSA ucm, and firmware fixes are required. For firmware- sof, it's the upstream commit 7d2c7f5ad44d ("Add sof-v2.9 for Intel hardware"). [Test Case] 1. Install linux-firmware with the FW files from upstream https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=57077702373e7ef40f0ca197724428d614bd92f8 - 2. Install alsa UCM file from upstream https://github.com/alsa-project/alsa-ucm-conf/commit/e87dde51d68950537f92af955ad0633437cc419a and https://github.com/alsa-project/alsa-ucm-conf/commit/8e39917518b62cce44d098bd6fe5d2c1b41f92bd + 2. Install new noble/oracular -proposed alsa UCM conf package 3. Install 6.10-oem kernel 4. Go to audio setting to make sure the audio input/output device are not dummy [Where problems could occur] It's simply an additional tplg file which only new kernel driver knows to how to load. ========== alsa-ucm-conf ========== [Impact] Audio doesn't work on Dell new XPS laptops on Intel MTL platforms. [Fix] Kernel driver, ALSA ucm, and firmware fixes are required. For alsa-ucm-conf, it requires the following upstream commit 1. c0a4df603786 ("sof-soundwire: Use one file for speaker codec") 2. 8e39917518b6 (sof-soundwire: Add basic support for basic cs35l56) 3. e87dde51d689 (sof-soundwire: Add basic support for cs42l43) [Test Case] 1. Install linux-firmware with the FW files from upstream https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=57077702373e7ef40f0ca197724428d614bd92f8 2. Install 6.10-oem kernel - 3. Install new firmware-sof with new tplg file sof-mtl-cs42l43-l0-cs35l56-l23.tplg + 3. Install new noble/oracular -proposed firmware-sof package 4. Go to audio setting to make sure the audio input/output device are not dummy [Where problems could occur] The new alsa UCM file only take effect when new cs35l56 driver and firmware-sof are loaded. The impact are restricted on cs35l56 only.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2069760 Title: Soundwire support for CS42L43 and CS35L56 on Intel MTL To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-ucm-conf/+bug/2069760/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs