Not sure if this might help... looks like this Dell has some hardware design problems - we should be able to come up with a workaround nonetheless. I've had the stock Ubuntu kernels die on me several times - goes into what seems to be disk thrashing (on an SSD?!) and 50% of the time the OOM killer recued it - but only after 30-60 minutes, nobody can wait that long - with nothing in the logs to go on, so I compiled my own kernel to dig deeper.
Which brings me here - Wifi + Bluetooth missing, but only after several suspend / resume cycles -on my own kernel. This has only happened once over the course of 6 months with the Ubuntu 18.04.2 stock kernel. Correct me here, but it seems the Wi-Fi + Bluetooth is connected to the USB3 bus? My next step will be to load the USB3 driver as a module so I can unload and reload it to see if that resets it properly. ** Attachment added: "dmesg.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1799988/+attachment/5284639/+files/dmesg.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/1799988 Title: Missing wifi and bluetooth after sleep on XPS 9370 Status in Dell Sputnik: New Status in linux package in Ubuntu: Confirmed Bug description: I have XPS9370 with self-installed Ubuntu 18.10 (not project sputnik) with Killer 1435 wireless module. And sometimes I find wifi and bluetooth missing after sleep. I cannot exactly define preconditions, but it seems there are following steps to reproduce the issue 1. Connect something via bluetooth (I use bluetooth headset) 2. Send laptop to sleep 3. Wake it and find wifi and bluetooth missing. I have to mention that I have also been experienced bluetooth only missing, but it somehow transformed to the issue with both wireless devices. Dmesg after waking up with the issue attached --- ProblemType: Bug ApportVersion: 2.20.10-0ubuntu13 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: kao 2362 F.... pulseaudio CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 18.10 InstallationDate: Installed on 2018-09-22 (33 days ago) InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Alpha amd64 (20180922) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 012: ID 0489:e0a2 Foxconn / Hon Hai Bus 001 Device 002: ID 0bda:58f4 Realtek Semiconductor Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Dell Inc. XPS 13 9370 Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-10-generic root=UUID=34230cbd-d3d2-4cb8-855a-307883bc35ea ro quiet splash mem_sleep_default=deep video=1920x1080 usbcore.dyndbg=+p vt.handoff=1 ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12 RelatedPackageVersions: linux-restricted-modules-4.18.0-10-generic N/A linux-backports-modules-4.18.0-10-generic N/A linux-firmware 1.175 Tags: cosmic Uname: Linux 4.18.0-10-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/09/2018 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.5.1 dmi.board.name: 0VM1FG dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.5.1:bd08/09/2018:svnDellInc.:pnXPS139370:pvr:rvnDellInc.:rn0VM1FG:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: XPS dmi.product.name: XPS 13 9370 dmi.product.sku: 07E6 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/dell-sputnik/+bug/1799988/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
