Hi, we need you to detail some more. 1. Do you mean Wi-Fi adapter still appears, but you fail to connect to existing WiFi networks that used to connect to? You mentioned the WLAN is still visible and you're able to enter WLAN SSID/passphrase.
2. Please attach system journal again against the failing kernel 4.15.0-96+ and 5.3.0-28+. We need to know what happen when you upgraded to new kernels. You may have no network access then, so you can run following commands to save logs and attach them later when rebooted back to 4.15.0-96: $ sudo journalctl -b 0 | tee journal.$(uname -r) This will create one journal.* file at your present working directory. So reboot to 4.15.0-96+ kernel, run the command once, and then reboot to 5.3.0-28+ again, and run that command again as well. Attach both files as attachments here please. -- 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/1879432 Title: Ralink RT2790 [1814:0781] Subsystem [1462:6890] wifi card lost function Status in linux package in Ubuntu: Confirmed Bug description: The kernel 4.15.0-96 is the last working one with my WiFi card. The same problem occurred with kernels larger than 5.3.0-28. My first thought of a hardware failure due to a low or empty BIOS battery was not confirmed. The laptop is a dual boot with Linux Mint 19.3 as first system and Win 8.1 as second. Win 8.1 did not show these errors. It is also not my first choice. The non-functioning kernels can't find my WLAN anymore, the neighbors can. Even re-entering the SSID and the key does not help. The WLAN is visible. Translated with www.DeepL.com/Translator (free version) --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.14 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: bp 1094 F.... pulseaudio /dev/snd/controlC1: bp 1094 F.... pulseaudio CurrentDesktop: X-Cinnamon DistroRelease: Linux Mint 19.3 InstallationDate: Installed on 2019-12-09 (161 days ago) InstallationMedia: Linux Mint 19.2 "Tina" - Release amd64 20190729 MachineType: Micro-Star International EX620 Package: linux (not installed) ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-96-generic root=UUID=40e84a4e-6a12-43af-89d8-0c4b5333294b ro quiet splash vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-96.97-generic 4.15.18 RelatedPackageVersions: linux-restricted-modules-4.15.0-96-generic N/A linux-backports-modules-4.15.0-96-generic N/A linux-firmware 1.173.18 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no Tags: tricia Uname: Linux 4.15.0-96-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 10/03/2008 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: A1674ITE Ver1.04 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: Traveller 1534 dmi.board.vendor: MSI dmi.board.version: Ver 1.000 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrA1674ITEVer1.04:bd10/03/2008:svnMicro-StarInternational:pnEX620:pvrVer1.000:rvnMSI:rnTraveller1534:rvrVer1.000:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.family: To Be Filled By O.E.M. dmi.product.name: EX620 dmi.product.version: Ver 1.000 dmi.sys.vendor: Micro-Star International --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.14 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: bp 1094 F.... pulseaudio /dev/snd/controlC1: bp 1094 F.... pulseaudio CurrentDesktop: X-Cinnamon DistroRelease: Linux Mint 19.3 InstallationDate: Installed on 2019-12-09 (161 days ago) InstallationMedia: Linux Mint 19.2 "Tina" - Release amd64 20190729 MachineType: Micro-Star International EX620 Package: linux (not installed) ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-96-generic root=UUID=40e84a4e-6a12-43af-89d8-0c4b5333294b ro quiet splash vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-96.97-generic 4.15.18 RelatedPackageVersions: linux-restricted-modules-4.15.0-96-generic N/A linux-backports-modules-4.15.0-96-generic N/A linux-firmware 1.173.18 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no Tags: tricia Uname: Linux 4.15.0-96-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 10/03/2008 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: A1674ITE Ver1.04 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: Traveller 1534 dmi.board.vendor: MSI dmi.board.version: Ver 1.000 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrA1674ITEVer1.04:bd10/03/2008:svnMicro-StarInternational:pnEX620:pvrVer1.000:rvnMSI:rnTraveller1534:rvrVer1.000:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.family: To Be Filled By O.E.M. dmi.product.name: EX620 dmi.product.version: Ver 1.000 dmi.sys.vendor: Micro-Star International To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1879432/+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