Message ID | 20230906202025.422484-1-vicamo.yang@canonical.com |
---|---|
Headers | show |
Series | Audio device fails to function randomly on Intel MTL platform | expand |
On Thu, Sep 07, 2023 at 04:20:24AM +0800, You-Sheng Yang wrote: > BugLink: https://bugs.launchpad.net/bugs/2034506 > > [Impact] > > Audio device fails to function randomly on Intel MTL platform: > ``` > sof-audio-pci-intel-mtl 0000:00:1f.3: no llp found, fall back to default HDA path > sof-audio-pci-intel-mtl 0000:00:1f.3: COPIER (UUID: 9BA00C83-CA12-4A83-943C-1FA2E82F9DDA): No CPC match in the firmware file's manifest (ibs/obs: 384/192) > ``` > > [Fix] > > Proposed fix in upstream commit 26ef47e5ba60 ("ASoC: SOF: ipc4-topology: Add > module parameter to ignore the CPC value") that to allow ignoring CPC validation > for current fw release. > > [Test Case] > > 1. Boot into OS > 2. Check if the internal audio input & output devices work > 3. Let system enter suspend, then wake system back up > 4. Check if the audio input & output devices work > 5. Connect an external audio device (e.g. bluetooth headset, external monitor) > and check if they work > 6. Disconnect the external audio device > 7. Check if the internal audio input & output devices work > 8. Reboot system > 9. Repeat above steps > > [Where problems could occur] > > While a 0 CPC value will force the DSP to run at full speed, this is going to > impact power consumption until further fix being released for firmware. > > [Other Info] > > CPC checking landed to v6.5-rc1, so Mantic and oem-6.5 are nominated for fix. Applied to mantic/linux. Thanks, -Andrea