apport information ** Tags added: apport-collected
** Description changed: This is a hardware specific issue with Ubuntu 18.04 and kernel 4.15.0-20-generic. The driver for the Intel AC 9560 wireless chip causes the problem. Driver location: https://www.intel.com/content/www/us/en/support/articles/000005511 /network-and-i-o/wireless-networking.html The wifi connection is very slow (1MB instead of 100MB possible download speed, upload speed is normal) and is also very unreliable. When installing the 4.16 kernel from mainline kernel http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.16/ the described problem is solved. Sytem data: Description: Ubuntu 18.04 LTS Release: 18.04 Package: 4.15.0-20-generic driver=iwlwifi driverversion=4.15.0-20-generic firmware=34.0.0 + --- + ApportVersion: 2.20.9-0ubuntu7 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC0: david 1729 F.... pulseaudio + CurrentDesktop: ubuntu:GNOME + DistroRelease: Ubuntu 18.04 + InstallationDate: Installed on 2018-05-19 (2 days ago) + InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) + MachineType: Acer Swift SF114-32 + Package: linux (not installed) + ProcEnviron: + TERM=xterm-256color + PATH=(custom, no user) + XDG_RUNTIME_DIR=<set> + LANG=de_AT.UTF-8 + SHELL=/bin/bash + ProcFB: 0 inteldrmfb + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-20-generic root=UUID=39ea17c1-4c91-45ac-81a7-401583763b21 ro quiet splash vt.handoff=1 + ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 + RelatedPackageVersions: + linux-restricted-modules-4.15.0-20-generic N/A + linux-backports-modules-4.15.0-20-generic N/A + linux-firmware 1.173 + Tags: bionic + Uname: Linux 4.15.0-20-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo + _MarkForUpload: True + dmi.bios.date: 05/02/2018 + dmi.bios.vendor: Insyde Corp. + dmi.bios.version: V1.03 + dmi.board.name: Sapporo_GL + dmi.board.vendor: GLK + dmi.board.version: V1.03 + dmi.chassis.type: 10 + dmi.chassis.vendor: Acer + dmi.chassis.version: V1.03 + dmi.modalias: dmi:bvnInsydeCorp.:bvrV1.03:bd05/02/2018:svnAcer:pnSwiftSF114-32:pvrV1.03:rvnGLK:rnSapporo_GL:rvrV1.03:cvnAcer:ct10:cvrV1.03: + dmi.product.family: Swift 1 + dmi.product.name: Swift SF114-32 + dmi.product.version: V1.03 + dmi.sys.vendor: Acer ** Attachment added: "AlsaInfo.txt" https://bugs.launchpad.net/bugs/1772467/+attachment/5142527/+files/AlsaInfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1772467 Title: Driver iwlwifi for Intel Wireless-AC 9560 is slow and unreliable in kernel 4.15.0-20-generic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1772467/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
