[Bug 1799988] Re: Missing wifi and bluetooth after sleep on XPS 9370

I spoke too soon, back to "question mark" state and no connection.

[16070.951387] ath10k_pci 0000:02:00.0: firmware crashed! (guid a288f3c4-d6a5-43f2-8c18-2ef3ed9d63f6)
[16070.951424] ath10k_pci 0000:02:00.0: qca6174 hw3.2 target 0x05030000 chip_id 0x00340aff sub 1a56:143a
[16070.951433] ath10k_pci 0000:02:00.0: kconfig debug 0 debugfs 1 tracing 1 dfs 0 testmode 0
[16070.953085] ath10k_pci 0000:02:00.0: firmware ver WLAN.RM.4.4.1-00079-QCARMSWPZ-1 api 6 features wowlan,ignore-otp crc32 fd869beb
[16070.954386] ath10k_pci 0000:02:00.0: board_file api 2 bmi_id N/A crc32 20d869c3
[16070.954407] ath10k_pci 0000:02:00.0: htt-ver 3.47 wmi-op 4 htt-op 3 cal otp max-sta 32 raw 0 hwcrypto 1
[16070.964559] ath10k_pci 0000:02:00.0: failed to get memcpy hi address for firmware address 4: -16
[16070.964581] ath10k_pci 0000:02:00.0: failed to read firmware dump area: -16
[16070.964588] ath10k_pci 0000:02:00.0: Copy Engine register dump:
[16070.964608] ath10k_pci 0000:02:00.0: [00]: 0x00034400 11 11 3 3
[16070.964626] ath10k_pci 0000:02:00.0: [01]: 0x00034800 31 31 395 396
[16070.964641] ath10k_pci 0000:02:00.0: [02]: 0x00034c00 38 37 100 101
[16070.964663] ath10k_pci 0000:02:00.0: [03]: 0x00035000 15 15 17 15
[16070.964679] ath10k_pci 0000:02:00.0: [04]: 0x00035400 347 337 233 169
[16070.964693] ath10k_pci 0000:02:00.0: [05]: 0x00035800 0 0 64 0
[16070.964710] ath10k_pci 0000:02:00.0: [06]: 0x00035c00 14 13 14 12
[16070.964730] ath10k_pci 0000:02:00.0: [07]: 0x00036000 0 0 0 1
[16071.003122] ath10k_pci 0000:02:00.0: failed to read hi_board_data address: -28
[16071.088236] ieee80211 phy0: Hardware restart was requested
[16071.309828] ath10k_pci 0000:02:00.0: unsupported HTC service id: 1536
[16071.430225] ath10k_pci 0000:02:00.0: device successfully recovered

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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:
In Progress

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.

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