With autosuspend on 4.15.0-20: Bluetooth controller crash at some point. suspend didn't fix it, you always have "no bluetooth dongle found".
on 4.15.0-24: after first suspend dongle is missing but the second one seems to "fix" it and it works after several suspend. I don't have any issue with Bluetooth used for tethering with an Android phone. -- 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/1775217 Title: bluetooth controller fail after suspend with USB autosuspend on XPS 13 9360 Status in linux package in Ubuntu: In Progress Status in linux source package in Bionic: Fix Committed Bug description: == SRU Justification == This is a regression introduced in v4.15 and Bionic. The bluetooth controller fails after suspend with USB autosuspend on an XPS 13 9360. This regression is fixed by mainline commit 596b07a9a226. This commit was also cc'd to upstream stable, but it has not landed in Bionic via stable updates as of yet. == Fix == 596b07a9a226 ("Bluetooth: btusb: Add Dell XPS 13 9360 to btusb_needs_reset_resume_table") == Regression Potential == Low. This patch has also been cc'd to upstream stable, so it recieved additonal upstream review. == Test Case == A test kernel was built with this patch and tested by the original bug reporter. The bug reporter states the test kernel resolved the bug. More information here: https://bugzilla.redhat.com/show_bug.cgi?id=1514836 Patch: https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth.git/commit/?id=596b07a9a22656493726edf1739569102bd3e136 ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-generic 4.15.0.22.23 ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17 Uname: Linux 4.15.0-22-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: guilhem 2319 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Tue Jun 5 18:19:20 2018 HibernationDevice: RESUME=UUID=bfa874ab-9c2f-4228-9fd1-51267b4ea3c3 InstallationDate: Installed on 2018-02-26 (99 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180225) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 0c45:670c Microdia Bus 001 Device 002: ID 0cf3:e300 Atheros Communications, Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Dell Inc. XPS 13 9360 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.15.0-22-generic root=UUID=287736d3-3b35-4262-a175-3254aa366f41 ro rootflags=subvol=@ quiet splash i915.enable_rc6=1 i915.enable_psr=2 i915.enable_guc_loading=1 i915.enable_guc_submission=1 i915.semaphores=1 i915.disable_power_well=0 vt.handoff=1 RelatedPackageVersions: linux-restricted-modules-4.15.0-22-generic N/A linux-backports-modules-4.15.0-22-generic N/A linux-firmware 1.173.1 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/26/2018 dmi.bios.vendor: Dell Inc. dmi.bios.version: 2.6.2 dmi.board.name: 02PG84 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr2.6.2:bd02/26/2018:svnDellInc.:pnXPS139360:pvr:rvnDellInc.:rn02PG84:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.family: XPS dmi.product.name: XPS 13 9360 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1775217/+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