** Description changed: - When starting Xubuntu 18.04.1 LTS on a laptop HP 1S-af023ng with kernel - 4.15.0-32.35 amd64, wifi via rtl8723be works OK. + === SRU Justification === + [Impact] + Realtek 8723be's ant_sel parameter stops working since 4.15.0-33.36. + + [Fix] + The commit that causes the regression works in mainline, so there are + some functional dependencies are not in 4.15. + + Finding those dependencies can be hard since I don't have the hardware + to test with, also pulling new commits may cause new regression. So the + safest way to deal with this bug is to simply revert the regression + commit. + + [Test] + User confirmed reverting the commit can fix the issue. + + [Regression Potential] + Low. Realtek 8723be works without this commit. + + === Original Bug Report === + When starting Xubuntu 18.04.1 LTS on a laptop HP 1S-af023ng with kernel 4.15.0-32.35 amd64, wifi via rtl8723be works OK. Using actual 4.15.0-33.36 amd64 instead, rtl8723be doesn't find any wifi networks and thus there is no connection. Changing the antenna setup in /etc/modprobe.d/rtl8723be_options.conf doesn't help either; as a workaround an external wifi device (Gigaset USB Adapter 108) works. The expectation is that wifi through rtl8723be will still work under 4.15.0-33.36 as it did previously. - --- + --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC1: al 1234 F.... pulseaudio - /dev/snd/controlC0: al 1234 F.... pulseaudio + USER PID ACCESS COMMAND + /dev/snd/controlC1: al 1234 F.... pulseaudio + /dev/snd/controlC0: al 1234 F.... pulseaudio CurrentDesktop: XFCE DistroRelease: Ubuntu 18.04 EcryptfsInUse: Yes InstallationDate: Installed on 2018-05-27 (89 days ago) InstallationMedia: Xubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: Hewlett-Packard HP Notebook Package: linux (not installed) ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-33-generic root=UUID=32ea87b7-f595-4137-a54b-55838586f720 ro quiet splash vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-33.36-generic 4.15.18 RelatedPackageVersions: - linux-restricted-modules-4.15.0-33-generic N/A - linux-backports-modules-4.15.0-33-generic N/A - linux-firmware 1.173.1 + linux-restricted-modules-4.15.0-33-generic N/A + linux-backports-modules-4.15.0-33-generic N/A + linux-firmware 1.173.1 Tags: bionic Uname: Linux 4.15.0-33-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 04/01/2015 dmi.bios.vendor: Insyde dmi.bios.version: F.02 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 8137 dmi.board.vendor: Hewlett-Packard dmi.board.version: 99.02 dmi.chassis.asset.tag: Chassis Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnInsyde:bvrF.02:bd04/01/2015:svnHewlett-Packard:pnHPNotebook:pvrType1ProductConfigId:rvnHewlett-Packard:rn8137:rvr99.02:cvnHewlett-Packard:ct10:cvrChassisVersion: dmi.product.family: 103C_5335KV G=N L=CON B=HP dmi.product.name: HP Notebook dmi.product.version: Type1ProductConfigId dmi.sys.vendor: Hewlett-Packard
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1788997 Title: rtl8723be wifi does not work under linux-modules- extra-4.15.0-33-generic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1788997/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
