I started seeing the issues that Sergio mentioned lately as well. I think this was caused by the recent automatic move from 5.8 to 5.11. I had the oem kernel installed (20.04 install) but then apt recently moved me to the hwe-5.8 kernel. More recently apt pulled in hwe-5.11 and I believe that is when I started seeing this issue.
I didn't look at this super carefully, but it appears that some packaging for the lenovo oem-sutton.newell-ace-meta ppa transitioned me to linux-image-generic-hwe-20.04 (fine) which at the time was 5.8 (on Jul 22 linux-generic-hwe-20.04:amd64 5.8.0.63.71~20.04.45 got installed, according to /var/log/dpkg.log.1). I rebooted into this kernel and was happy. Sometime in July, 5.11.0.22.23~20.04.6 came into -security and -updates, but I didn't install it. Later I performed an apt-get dist-upgrade and was upgraded to 5.11.0.25.27~20.04.10 on Aug 6. Today I upgraded again to 5.11.0-27.29~20.04.1. As it happens, I did not boot into either of the 5.11 kernels and am still on 5.8 (5.8.0-63.71~20.04.1-generic). I reinstalled linux-firmware just now and it readily demonstrates the issue: $ sudo dpkg -i ./linux-firmware_1.187.16_all.deb (Reading database ... 260812 files and directories currently installed.) Preparing to unpack .../linux-firmware_1.187.16_all.deb ... Unpacking linux-firmware (1.187.16) over (1.187.16) ... Setting up linux-firmware (1.187.16) ... update-initramfs: Generating /boot/initrd.img-5.11.0-27-generic W: Possible missing firmware /lib/firmware/i915/skl_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/bxt_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/kbl_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/glk_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/kbl_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/kbl_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/cml_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/icl_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/ehl_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/ehl_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/tgl_huc_7.5.0.bin for module i915 W: Possible missing firmware /lib/firmware/i915/tgl_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/tgl_huc_7.5.0.bin for module i915 W: Possible missing firmware /lib/firmware/i915/tgl_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/dg1_dmc_ver2_02.bin for module i915 update-initramfs: Generating /boot/initrd.img-5.11.0-25-generic W: Possible missing firmware /lib/firmware/i915/skl_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/bxt_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/kbl_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/glk_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/kbl_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/kbl_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/cml_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/icl_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/ehl_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/ehl_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/tgl_huc_7.5.0.bin for module i915 W: Possible missing firmware /lib/firmware/i915/tgl_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/tgl_huc_7.5.0.bin for module i915 W: Possible missing firmware /lib/firmware/i915/tgl_guc_49.0.1.bin for module i915 W: Possible missing firmware /lib/firmware/i915/dg1_dmc_ver2_02.bin for module i915 update-initramfs: Generating /boot/initrd.img-5.8.0-63-generic $ >From the above, we can see that the 5.8 kernel had no errors, but both the 5.11 ones do. As I have the i915 chipset on this device, I haven't rebooted yet as I need a functional system. -- 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/1889137 Title: HWE kernel is missing firmwares Status in linux-firmware package in Ubuntu: Confirmed Bug description: After install linux-generic-hwe-18.04: update-initramfs: Generating /boot/initrd.img-5.4.0-42-generic W: Possible missing firmware /lib/firmware/rtl_nic/rtl8125a-3.fw for module r8169 W: Possible missing firmware /lib/firmware/i915/tgl_dmc_ver2_04.bin for module i915 W: Possible missing firmware /lib/firmware/i915/skl_guc_33.0.0.bin for module i915 W: Possible missing firmware /lib/firmware/i915/bxt_guc_33.0.0.bin for module i915 W: Possible missing firmware /lib/firmware/i915/kbl_guc_33.0.0.bin for module i915 W: Possible missing firmware /lib/firmware/i915/glk_guc_33.0.0.bin for module i915 W: Possible missing firmware /lib/firmware/i915/kbl_guc_33.0.0.bin for module i915 W: Possible missing firmware /lib/firmware/i915/icl_guc_33.0.0.bin for module i915 cd /lib/firmware/rtl_nicroot@h2:~# cd /lib/firmware/rtl_nic ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-generic-hwe-18.04 (not installed) ProcVersionSignature: Ubuntu 5.4.0-7634.38~1595345317~20.04~a8480ad-generic 5.4.41 Uname: Linux 5.4.0-7634-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27.4 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: GNOME Date: Tue Jul 28 10:43:18 2020 HibernationDevice: #RESUME=UUID=9926e754-5beb-4353-ab1b-8e22f798efc6 RESUME=UUID=aa434b5f-9af6-4b25-986e-216eb0e20a2e InstallationDate: Installed on 2018-06-28 (760 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: ASUSTeK COMPUTER INC. N551JK ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-7634-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-7634-generic N/A linux-backports-modules-5.4.0-7634-generic N/A linux-firmware 1.187.2 SourcePackage: linux UpgradeStatus: Upgraded to focal on 2020-05-30 (58 days ago) dmi.bios.date: 10/06/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: N551JK.203 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: N551JK dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrN551JK.203:bd10/06/2014:svnASUSTeKCOMPUTERINC.:pnN551JK:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnN551JK:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.family: N dmi.product.name: N551JK dmi.product.sku: ASUS-NotebookSKU dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. 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