i'm having a lot of symptons just the same, probably dupe https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1907984
-- 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/1907764 Title: Wi-fi causes unstable behaviour with this kernel version Status in linux package in Ubuntu: Incomplete Bug description: After a recent update to linux-image-5.4.0-56, my Ubuntu install has become unusable. Some symptoms: - Firefox would apparently launch but window would never appear - Thunderbird would launch but hang shortly after displaying window - "ip addr" would hang - "sudo <anything>" would hang without ever prompting for password - The "Settings" dialog would complain that NetManager was not running Based on a bit of internet research, I removed my wi-fi USB device and rebooted, and now the system will run. So, it seems this latest version has some issue with the wifi support needed for my card which lsusb describes as: Bus 001 Device 002: ID 148f:761a Ralink Technology, Corp. MT7610U ("Archer T2U" 2.4G+5G WLAN Adapter Note that I'm currently running under the next-to-last version installed,linux-image-5.4.0-54, which supports this card just fine. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-54-generic 5.4.0-54.60 ProcVersionSignature: Ubuntu 5.4.0-54.60-generic 5.4.65 Uname: Linux 5.4.0-54-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.13 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: jim 3040 F.... pulseaudio /dev/snd/controlC1: jim 3040 F.... pulseaudio /dev/snd/controlC0: jim 3040 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: GNOME Date: Fri Dec 11 01:56:58 2020 InstallationDate: Installed on 2020-03-27 (259 days ago) InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416) MachineType: System manufacturer System Product Name ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-54-generic root=UUID=1b434c2a-987e-4daf-bd3d-fa7d3e4b5049 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-54-generic N/A linux-backports-modules-5.4.0-54-generic N/A linux-firmware 1.187.6 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/07/2018 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0604 dmi.board.asset.tag: Default string dmi.board.name: PRIME B450M-A dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0604:bd12/07/2018:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnPRIMEB450M-A:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.family: To be filled by O.E.M. dmi.product.name: System Product Name dmi.product.sku: SKU dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1907764/+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
