Hi, This version of firmware[1] is not signed by Intel. The Comet Lake (CML) processor will validate the PV bits of the firmware, and it will refuse to load the sof-cnl.ri firmware
sof-audio-pci 0000:00:1f.3: error: load fw failed ret: -110 This SRU breaks the DMIC on CML platform. Please kindly replace the firmware binary for the CML platforms. [1] 4dbdd3366e840562b2a1da3927b1075e intel/sof/sof-cnl.ri -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-firmware in Ubuntu. https://bugs.launchpad.net/bugs/1847250 Title: update firmware for sound sof driver to fix the hang issue on several Dell machines Status in HWE Next: New Status in linux-firmware package in Ubuntu: Fix Released Status in linux-firmware source package in Bionic: Fix Committed Status in linux-firmware source package in Disco: Fix Committed Status in linux-firmware source package in Eoan: Fix Released Bug description: We expect this firmware update could be released with 19.10 [Impact] We have a couple of Dell machines, after installing the system, it will hang randomly, and this issue was reported by factory, they met this issue a couple of times. Then we tried to reproduce this issue, finally reproduced it. [Fix] Intel debugged this issue as well, and they provided 4 kernel patches and a new firmware, we tested them, they really can fix the issue. And the patches were sent the SRU already, now it is time to update firmware. [Test Case] Install the system repeatedly and there is no hang issue anymore. [Regression Risk] Low, Intel told us there is no ABI change for the firmware, so it is safe to run this firmware both with the old driver (not applied those 4 patches) and the new driver (applied those 4 patches). To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1847250/+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
