apport information ** Attachment added: "Lspci.txt" https://bugs.launchpad.net/bugs/1772467/+attachment/5142531/+files/Lspci.txt
-- 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/1772467 Title: Driver iwlwifi for Intel Wireless-AC 9560 is slow and unreliable in kernel 4.15.0-20-generic Status in linux package in Ubuntu: Incomplete Bug description: 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1772467/+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
