As long as everything is working correctly, the warning itself is harmless. I'm not sure where this firmware is meant to come from, it is not included in the files provided by linux-firmware.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1751613 Title: W: Possible missing firmware /lib/firmware/ast_dp501_fw.bin for module ast Status in linux package in Ubuntu: Confirmed Bug description: This is an enterprise IPMI solution. Effected Mainboard: http://www.supermicro.com/products/motherboard/Xeon/C236_C232/X11SSH-F.cfm ASPEED Drivers: https://www.aspeedtech.com/support.php Kernel patchwork aroud this device https://patchwork.kernel.org/patch/9848661/ https://patchwork.kernel.org/patch/5524091/ Any instructions how to DIY? ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-10-generic 4.15.0-10.11 ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3 Uname: Linux 4.15.0-10-generic x86_64 ApportVersion: 2.20.8-0ubuntu10 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: ruuth 5687 F.... pulseaudio CurrentDesktop: ubuntu:GNOME CurrentDmesg: Error: command ['dmesg'] failed with exit code 1: dmesg: read kernel buffer failed: Operation not permitted Date: Sun Feb 25 16:13:10 2018 HibernationDevice: RESUME=UUID=940f83a9-bc75-4bd8-b478-2f54e419ffb3 InstallationDate: Installed on 2018-02-11 (14 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105.1) MachineType: Supermicro Super Server ProcFB: 0 astdrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-10-generic.efi.signed root=UUID=9ea281d4-feee-4dcb-a291-f3cf585b1657 ro text RelatedPackageVersions: linux-restricted-modules-4.15.0-10-generic N/A linux-backports-modules-4.15.0-10-generic N/A linux-firmware 1.171 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-02-11 (14 days ago) dmi.bios.date: 10/06/2017 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 2.0c dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: X11SSH-F dmi.board.vendor: Supermicro dmi.board.version: 1.01 dmi.chassis.asset.tag: To be filled by O.E.M. dmi.chassis.type: 17 dmi.chassis.vendor: Supermicro dmi.chassis.version: 0123456789 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2.0c:bd10/06/2017:svnSupermicro:pnSuperServer:pvr0123456789:rvnSupermicro:rnX11SSH-F:rvr1.01:cvnSupermicro:ct17:cvr0123456789: dmi.product.family: To be filled by O.E.M. dmi.product.name: Super Server dmi.product.version: 0123456789 dmi.sys.vendor: Supermicro --- ApportVersion: 2.20.8-0ubuntu10 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: ruuth 5687 F.... pulseaudio DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=940f83a9-bc75-4bd8-b478-2f54e419ffb3 InstallationDate: Installed on 2018-02-11 (14 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105.1) MachineType: Supermicro Super Server Package: linux (not installed) ProcFB: 0 astdrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-10-generic.efi.signed root=UUID=9ea281d4-feee-4dcb-a291-f3cf585b1657 ro text ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.15.0-10-generic N/A linux-backports-modules-4.15.0-10-generic N/A linux-firmware 1.171 RfKill: Tags: bionic Uname: Linux 4.15.0-10-generic x86_64 UpgradeStatus: Upgraded to bionic on 2018-02-11 (14 days ago) UserGroups: _MarkForUpload: True dmi.bios.date: 10/06/2017 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 2.0c dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: X11SSH-F dmi.board.vendor: Supermicro dmi.board.version: 1.01 dmi.chassis.asset.tag: To be filled by O.E.M. dmi.chassis.type: 17 dmi.chassis.vendor: Supermicro dmi.chassis.version: 0123456789 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2.0c:bd10/06/2017:svnSupermicro:pnSuperServer:pvr0123456789:rvnSupermicro:rnX11SSH-F:rvr1.01:cvnSupermicro:ct17:cvr0123456789: dmi.product.family: To be filled by O.E.M. dmi.product.name: Super Server dmi.product.version: 0123456789 dmi.sys.vendor: Supermicro To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1751613/+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