[Kernel-packages] [Bug 1730924]
Created attachment 290067 mwifiex crash log on SB1 with ps_on, 5GHzAP - power_save on - connected to 5GHz AP - connection instability (ping not responding) - firmware crashing eventually Journal log and devcoredump are included in the archive. I kept sending ping to 192.168.1.1 and the output was redirected to kmsg to show connection stability state. $ ping 192.168.1.1 | sudo tee /dev/kmsg [...] 64 bytes from 192.168.1.1: icmp_seq=5798 ttl=255 time=3.81 ms 64 bytes from 192.168.1.1: icmp_seq=5799 ttl=255 time=3.50 ms 64 bytes from 192.168.1.1: icmp_seq=5800 ttl=255 time=7.16 ms # # connection stopped suddenly # From 192.168.1.59 icmp_seq=5830 Destination Host Unreachable From 192.168.1.59 icmp_seq=5831 Destination Host Unreachable From 192.168.1.59 icmp_seq=5832 Destination Host Unreachable [...] From 192.168.1.59 icmp_seq=6019 Destination Host Unreachable From 192.168.1.59 icmp_seq=6020 Destination Host Unreachable From 192.168.1.59 icmp_seq=6025 Destination Host Unreachable # # connection started working again # 64 bytes from 192.168.1.1: icmp_seq=5801 ttl=255 time=230664 ms 64 bytes from 192.168.1.1: icmp_seq=5802 ttl=255 time=229660 ms 64 bytes from 192.168.1.1: icmp_seq=5803 ttl=255 time=228647 ms [...] 64 bytes from 192.168.1.1: icmp_seq=6082 ttl=255 time=7.24 ms 64 bytes from 192.168.1.1: icmp_seq=6083 ttl=255 time=80.0 ms 64 bytes from 192.168.1.1: icmp_seq=6084 ttl=255 time=6.73 ms # # firmware crashed suddenly # ping: sendmsg: Network is unreachable ping: sendmsg: Network is unreachable ping: sendmsg: Network is unreachable ping: sendmsg: Network is unreachable ping: sendmsg: Network is unreachable [...] -- 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/1730924 Title: Wifi does down "crash" in Surface Pro 4 Status in Linux: Confirmed Status in linux package in Ubuntu: Incomplete Bug description: I have a Surface Pro 4. The wifi works well in principle, but unfortunately it drops every x minutes. The only way to fix it I've found is to reboot the computer. lsb_release -rd Description:Ubuntu 17.10 Release:17.10 ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-4.13.0-16-generic 4.13.0-16.19 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: predatux 1537 F pulseaudio CurrentDesktop: KDE Date: Wed Nov 8 10:41:26 2017 HibernationDevice: RESUME=UUID=147af4ba-a4ce-41fe-a176-b36a1f6a590b Lsusb: Bus 002 Device 002: ID 045e:090c Microsoft Corp. Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 045e:07e8 Microsoft Corp. Bus 001 Device 003: ID 1286:204c Marvell Semiconductor, Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Microsoft Corporation Surface Pro 4 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-16-generic root=UUID=125200b0-7377-4985-a217-15503781a525 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.13.0-16-generic N/A linux-backports-modules-4.13.0-16-generic N/A linux-firmware 1.169 SourcePackage: linux UpgradeStatus: Upgraded to artful on 2017-10-22 (16 days ago) dmi.bios.date: 02/24/2017 dmi.bios.vendor: Microsoft Corporation dmi.bios.version: 106.1624.768 dmi.board.name: Surface Pro 4 dmi.board.vendor: Microsoft Corporation dmi.chassis.type: 9 dmi.chassis.vendor: Microsoft Corporation dmi.modalias: dmi:bvnMicrosoftCorporation:bvr106.1624.768:bd02/24/2017:svnMicrosoftCorporation:pnSurfacePro4:pvrD0B08F1C03P38:rvnMicrosoftCorporation:rnSurfacePro4:rvr:cvnMicrosoftCorporation:ct9:cvr: dmi.product.family: Surface dmi.product.name: Surface Pro 4 dmi.product.version: D:0B:08F:1C:03P:38 dmi.sys.vendor: Microsoft Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1730924/+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
[Kernel-packages] [Bug 1730924]
(In reply to Pali Rohár from comment #127) > Hello! Hello! > Tsuchiya & Verdre: Do you have some fixes for instability issues when card > is in 5GHz AP mode? This is issue which we are observing on 88W8997 SDIO > wifi chips. Unfortunately, not yet. I'm using 5GHz AP with just power_save off. Maybe all what we can do about power_save and firmware crashing is submitting a journal log and devcoredump. I'll attach them in the next comment. > I described some problems related to power save mode, nl80211/cfg80211 layer > and mwifiex driver in email which I sent to linux-wireless mailing list: > https://lore.kernel.org/linux-wireless/20200609111544.v7u5ort3yk4s7coy@pali/ Thank you for letting us know! -- 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/1730924 Title: Wifi does down "crash" in Surface Pro 4 Status in Linux: Confirmed Status in linux package in Ubuntu: Incomplete Bug description: I have a Surface Pro 4. The wifi works well in principle, but unfortunately it drops every x minutes. The only way to fix it I've found is to reboot the computer. lsb_release -rd Description:Ubuntu 17.10 Release:17.10 ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-4.13.0-16-generic 4.13.0-16.19 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: predatux 1537 F pulseaudio CurrentDesktop: KDE Date: Wed Nov 8 10:41:26 2017 HibernationDevice: RESUME=UUID=147af4ba-a4ce-41fe-a176-b36a1f6a590b Lsusb: Bus 002 Device 002: ID 045e:090c Microsoft Corp. Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 045e:07e8 Microsoft Corp. Bus 001 Device 003: ID 1286:204c Marvell Semiconductor, Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Microsoft Corporation Surface Pro 4 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-16-generic root=UUID=125200b0-7377-4985-a217-15503781a525 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.13.0-16-generic N/A linux-backports-modules-4.13.0-16-generic N/A linux-firmware 1.169 SourcePackage: linux UpgradeStatus: Upgraded to artful on 2017-10-22 (16 days ago) dmi.bios.date: 02/24/2017 dmi.bios.vendor: Microsoft Corporation dmi.bios.version: 106.1624.768 dmi.board.name: Surface Pro 4 dmi.board.vendor: Microsoft Corporation dmi.chassis.type: 9 dmi.chassis.vendor: Microsoft Corporation dmi.modalias: dmi:bvnMicrosoftCorporation:bvr106.1624.768:bd02/24/2017:svnMicrosoftCorporation:pnSurfacePro4:pvrD0B08F1C03P38:rvnMicrosoftCorporation:rnSurfacePro4:rvr:cvnMicrosoftCorporation:ct9:cvr: dmi.product.family: Surface dmi.product.name: Surface Pro 4 dmi.product.version: D:0B:08F:1C:03P:38 dmi.sys.vendor: Microsoft Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1730924/+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
[Kernel-packages] [Bug 1730924]
Hi Ganapathi, We can't do anything about power_save and firmware crashing. So, I attached journal log and devcoredump when using with power_save on and 5GHz AP, containing 1) connection instability and 2) firmware crashing eventually. I hope it helps in debugging. Thank you. -- 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/1730924 Title: Wifi does down "crash" in Surface Pro 4 Status in Linux: Confirmed Status in linux package in Ubuntu: Incomplete Bug description: I have a Surface Pro 4. The wifi works well in principle, but unfortunately it drops every x minutes. The only way to fix it I've found is to reboot the computer. lsb_release -rd Description:Ubuntu 17.10 Release:17.10 ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-4.13.0-16-generic 4.13.0-16.19 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: predatux 1537 F pulseaudio CurrentDesktop: KDE Date: Wed Nov 8 10:41:26 2017 HibernationDevice: RESUME=UUID=147af4ba-a4ce-41fe-a176-b36a1f6a590b Lsusb: Bus 002 Device 002: ID 045e:090c Microsoft Corp. Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 045e:07e8 Microsoft Corp. Bus 001 Device 003: ID 1286:204c Marvell Semiconductor, Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Microsoft Corporation Surface Pro 4 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-16-generic root=UUID=125200b0-7377-4985-a217-15503781a525 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.13.0-16-generic N/A linux-backports-modules-4.13.0-16-generic N/A linux-firmware 1.169 SourcePackage: linux UpgradeStatus: Upgraded to artful on 2017-10-22 (16 days ago) dmi.bios.date: 02/24/2017 dmi.bios.vendor: Microsoft Corporation dmi.bios.version: 106.1624.768 dmi.board.name: Surface Pro 4 dmi.board.vendor: Microsoft Corporation dmi.chassis.type: 9 dmi.chassis.vendor: Microsoft Corporation dmi.modalias: dmi:bvnMicrosoftCorporation:bvr106.1624.768:bd02/24/2017:svnMicrosoftCorporation:pnSurfacePro4:pvrD0B08F1C03P38:rvnMicrosoftCorporation:rnSurfacePro4:rvr:cvnMicrosoftCorporation:ct9:cvr: dmi.product.family: Surface dmi.product.name: Surface Pro 4 dmi.product.version: D:0B:08F:1C:03P:38 dmi.sys.vendor: Microsoft Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1730924/+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
[Kernel-packages] [Bug 1730924]
== "mwifiex crash on idle/using" I heard this issue only from Surface 3 and SP5 owners. It can be fixed by disabling ASPM L1 state. I think this is the hardest issue to fix. So, I hope at least we could fix the mwifiex reset feature (see below). == "mwifiex reset feature broken" I think this issue is common on all devices that use the 88W8897 chip. You can reproduce this issue by the following command: echo 1 | sudo tee /sys/kernel/debug/mwifiex/mlan0/reset Expected: mwifiex is usable after this reset. Actual: mwifiex is broke after this reset with following dmesg output $ echo 1 | sudo tee /sys/kernel/debug/mwifiex/mlan0/reset mwifiex_pcie :03:00.0: Resetting per request mwifiex_pcie :03:00.0: info: successfully disconnected from [BSSID]: reason code 3 mwifiex_pcie :03:00.0: PREP_CMD: card is removed mwifiex_pcie :03:00.0: deleting the crypto keys mwifiex_pcie :03:00.0: PREP_CMD: card is removed mwifiex_pcie :03:00.0: deleting the crypto keys mwifiex_pcie :03:00.0: PREP_CMD: card is removed mwifiex_pcie :03:00.0: deleting the crypto keys mwifiex_pcie :03:00.0: PREP_CMD: card is removed mwifiex_pcie :03:00.0: deleting the crypto keys mwifiex_pcie :03:00.0: PREP_CMD: card is removed mwifiex_pcie :03:00.0: deleting the crypto keys mwifiex_pcie :03:00.0: PREP_CMD: card is removed mwifiex_pcie :03:00.0: deleting the crypto keys mwifiex_pcie :03:00.0: info: shutdown mwifiex... mwifiex_pcie :03:00.0: PREP_CMD: card is removed mwifiex_pcie :03:00.0: PREP_CMD: card is removed mwifiex_pcie :03:00.0: WLAN FW already running! Skip FW dnld mwifiex_pcie :03:00.0: WLAN FW is active mwifiex_pcie :03:00.0: Unknown api_id: 4 mwifiex_pcie :03:00.0: info: MWIFIEX VERSION: mwifiex 1.0 (15.68.19.p21) mwifiex_pcie :03:00.0: driver_version = mwifiex 1.0 (15.68.19.p21) mwifiex_pcie :03:00.0: info: trying to associate to '[SSID]' bssid [BSSID] mwifiex_pcie :03:00.0: info: associated to bssid [BSSID] successfully mwifiex_pcie :03:00.0: cmd_wait_q terminated: -110 mwifiex_pcie :03:00.0: info: successfully disconnected from [BSSID]: reason code 15 mwifiex_pcie :03:00.0: cmd_wait_q terminated: -110 mwifiex_pcie :03:00.0: deleting the crypto keys mwifiex_pcie :03:00.0: cmd_wait_q terminated: -110 mwifiex_pcie :03:00.0: deleting the crypto keys mwifiex_pcie :03:00.0: cmd_wait_q terminated: -110 mwifiex_pcie :03:00.0: deleting the crypto keys [...] Also, does anyone know what is the expected behavior on function level reset? Should firmware be re-downloaded? As you can see on the dmesg log, fw is still active after the reset. ("WLAN FW already running! Skip FW dnld") == "power_save causes connection instability at least on 5GHz APs" "connection instability" here means not crash, but networking stop, like ping not responding. I think this issue is common on all devices that use the 88W8897 chip. - You can mitigate this issue by showing APs continuously (nmcli d wifi list) - Or you can prevent this issue by disabling power_save (sudo iw dev mlan0 set power_save off) -- 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/1730924 Title: Wifi does down "crash" in Surface Pro 4 Status in Linux: Confirmed Status in linux package in Ubuntu: Incomplete Bug description: I have a Surface Pro 4. The wifi works well in principle, but unfortunately it drops every x minutes. The only way to fix it I've found is to reboot the computer. lsb_release -rd Description:Ubuntu 17.10 Release:17.10 ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-4.13.0-16-generic 4.13.0-16.19 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: predatux 1537 F pulseaudio CurrentDesktop: KDE Date: Wed Nov 8 10:41:26 2017 HibernationDevice: RESUME=UUID=147af4ba-a4ce-41fe-a176-b36a1f6a590b Lsusb: Bus 002 Device 002: ID 045e:090c Microsoft Corp. Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 045e:07e8 Microsoft Corp. Bus 001 Device 003: ID 1286:204c Marvell Semiconductor, Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Microsoft Corporation Surface Pro 4 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-16-generic root=UUID=125200b0-7377-4985-a217-15503781a525 ro quiet splash
[Kernel-packages] [Bug 1730924]
*if someone knows devices -- 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/1730924 Title: Wifi does down "crash" in Surface Pro 4 Status in Linux: Confirmed Status in linux package in Ubuntu: Incomplete Bug description: I have a Surface Pro 4. The wifi works well in principle, but unfortunately it drops every x minutes. The only way to fix it I've found is to reboot the computer. lsb_release -rd Description:Ubuntu 17.10 Release:17.10 ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-4.13.0-16-generic 4.13.0-16.19 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: predatux 1537 F pulseaudio CurrentDesktop: KDE Date: Wed Nov 8 10:41:26 2017 HibernationDevice: RESUME=UUID=147af4ba-a4ce-41fe-a176-b36a1f6a590b Lsusb: Bus 002 Device 002: ID 045e:090c Microsoft Corp. Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 045e:07e8 Microsoft Corp. Bus 001 Device 003: ID 1286:204c Marvell Semiconductor, Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Microsoft Corporation Surface Pro 4 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-16-generic root=UUID=125200b0-7377-4985-a217-15503781a525 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.13.0-16-generic N/A linux-backports-modules-4.13.0-16-generic N/A linux-firmware 1.169 SourcePackage: linux UpgradeStatus: Upgraded to artful on 2017-10-22 (16 days ago) dmi.bios.date: 02/24/2017 dmi.bios.vendor: Microsoft Corporation dmi.bios.version: 106.1624.768 dmi.board.name: Surface Pro 4 dmi.board.vendor: Microsoft Corporation dmi.chassis.type: 9 dmi.chassis.vendor: Microsoft Corporation dmi.modalias: dmi:bvnMicrosoftCorporation:bvr106.1624.768:bd02/24/2017:svnMicrosoftCorporation:pnSurfacePro4:pvrD0B08F1C03P38:rvnMicrosoftCorporation:rnSurfacePro4:rvr:cvnMicrosoftCorporation:ct9:cvr: dmi.product.family: Surface dmi.product.name: Surface Pro 4 dmi.product.version: D:0B:08F:1C:03P:38 dmi.sys.vendor: Microsoft Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1730924/+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
[Kernel-packages] [Bug 1730924]
Also, ff someone knows devices (other than Surface) that use the same 88W8897 chip (or at least similar PCIe chip like 88W8997), let me know. I want to get the device as a reference. Thank you. -- 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/1730924 Title: Wifi does down "crash" in Surface Pro 4 Status in Linux: Confirmed Status in linux package in Ubuntu: Incomplete Bug description: I have a Surface Pro 4. The wifi works well in principle, but unfortunately it drops every x minutes. The only way to fix it I've found is to reboot the computer. lsb_release -rd Description:Ubuntu 17.10 Release:17.10 ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-4.13.0-16-generic 4.13.0-16.19 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: predatux 1537 F pulseaudio CurrentDesktop: KDE Date: Wed Nov 8 10:41:26 2017 HibernationDevice: RESUME=UUID=147af4ba-a4ce-41fe-a176-b36a1f6a590b Lsusb: Bus 002 Device 002: ID 045e:090c Microsoft Corp. Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 045e:07e8 Microsoft Corp. Bus 001 Device 003: ID 1286:204c Marvell Semiconductor, Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Microsoft Corporation Surface Pro 4 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-16-generic root=UUID=125200b0-7377-4985-a217-15503781a525 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.13.0-16-generic N/A linux-backports-modules-4.13.0-16-generic N/A linux-firmware 1.169 SourcePackage: linux UpgradeStatus: Upgraded to artful on 2017-10-22 (16 days ago) dmi.bios.date: 02/24/2017 dmi.bios.vendor: Microsoft Corporation dmi.bios.version: 106.1624.768 dmi.board.name: Surface Pro 4 dmi.board.vendor: Microsoft Corporation dmi.chassis.type: 9 dmi.chassis.vendor: Microsoft Corporation dmi.modalias: dmi:bvnMicrosoftCorporation:bvr106.1624.768:bd02/24/2017:svnMicrosoftCorporation:pnSurfacePro4:pvrD0B08F1C03P38:rvnMicrosoftCorporation:rnSurfacePro4:rvr:cvnMicrosoftCorporation:ct9:cvr: dmi.product.family: Surface dmi.product.name: Surface Pro 4 dmi.product.version: D:0B:08F:1C:03P:38 dmi.sys.vendor: Microsoft Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1730924/+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
[Kernel-packages] [Bug 1730924]
Thank you for looking into this issue. Reporting current status. == "mwifiex crash after suspend" This issue might be the Surface devices specific problem? Not sure. I know some ways to prevent at least mwifiex crashing: 1. Disabling d3cold for wifi device (even doable on mainline kernels): echo 0 | sudo tee /sys/devices/pci:00/:00:1d.3/:03:00.0/d3cold_allowed # on SB1 echo 0 | sudo tee /sys/devices/pci:00/:00:1d.0/:02:00.0/d3cold_allowed # on SP4 2. Your patch "0001-mwifiex-set-PCIE-to-PCI_D0-power-state-on-resume" 3. Disable bridge_d3 on mwifiex_pcie_probe() pdev->bus->self->bridge_d3 = false; but with those ways, as I mentioned before (Comment 108), it sometimes not connect to AP automatically because it fails to find APs (`nmcli d wifi list` shows empty). This is easily fixed by reloading the "mwifiex_pcie" module. Patch for this issue we (linux-surface community) are currently using is, based this patch from sebanc: - https://github.com/jakeday/linux-surface/issues/420#issuecomment-544615371 Actual commit is here: - https://github.com/linux-surface/kernel/commit/c8da40c0538a1528f3efd85cd91d9e314c85dd19 The patch from sebanc does the following things: - modify mwifiex_pcie_suspend/mwifiex_pcie_resume functions to fix crash after suspend. It seems that the function mwifiex_pcie_suspend2 is from mwifiex_pcie_remove and the function mwifiex_pcie_resume2 is largely from mwifiex_pcie_probe. So, I think that it behaves in the same way as we unload modules before suspend and re-load modules after suspend. - disable bridge_d3 to fix crash after suspend - disable "auto deep sleep" (I think not needed for this issue, but introduced hoping to fix other issues) I think the patch is too aggressive to be upstreamed as they are, but please use it as a reference. The patch also fixes S0ix on KBL/KBL-R devices (such as Surface Book 2, Surface Pro 5, Surface Laptop 1 or later). SKL devices such as Surface Pro 4 or Surface Book 1 cannot achieve S0ix anyway because of other reasons outside of mwifiex. -- 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/1730924 Title: Wifi does down "crash" in Surface Pro 4 Status in Linux: Confirmed Status in linux package in Ubuntu: Incomplete Bug description: I have a Surface Pro 4. The wifi works well in principle, but unfortunately it drops every x minutes. The only way to fix it I've found is to reboot the computer. lsb_release -rd Description:Ubuntu 17.10 Release:17.10 ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-4.13.0-16-generic 4.13.0-16.19 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: predatux 1537 F pulseaudio CurrentDesktop: KDE Date: Wed Nov 8 10:41:26 2017 HibernationDevice: RESUME=UUID=147af4ba-a4ce-41fe-a176-b36a1f6a590b Lsusb: Bus 002 Device 002: ID 045e:090c Microsoft Corp. Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 045e:07e8 Microsoft Corp. Bus 001 Device 003: ID 1286:204c Marvell Semiconductor, Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Microsoft Corporation Surface Pro 4 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-16-generic root=UUID=125200b0-7377-4985-a217-15503781a525 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.13.0-16-generic N/A linux-backports-modules-4.13.0-16-generic N/A linux-firmware 1.169 SourcePackage: linux UpgradeStatus: Upgraded to artful on 2017-10-22 (16 days ago) dmi.bios.date: 02/24/2017 dmi.bios.vendor: Microsoft Corporation dmi.bios.version: 106.1624.768 dmi.board.name: Surface Pro 4 dmi.board.vendor: Microsoft Corporation dmi.chassis.type: 9 dmi.chassis.vendor: Microsoft Corporation dmi.modalias: dmi:bvnMicrosoftCorporation:bvr106.1624.768:bd02/24/2017:svnMicrosoftCorporation:pnSurfacePro4:pvrD0B08F1C03P38:rvnMicrosoftCorporation:rnSurfacePro4:rvr:cvnMicrosoftCorporation:ct9:cvr: dmi.product.family: Surface dmi.product.name: Surface Pro 4 dmi.product.version: D:0B:08F:1C:03P:38 dmi.sys.vendor: Microsoft Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1730924/+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
[Kernel-packages] [Bug 1730924]
> 1. timeout happens after a resume, if we see below message in dmesg: >"mwifiex_pci :02:00.0: Refused to change power state, currently in D0" For me, it says instead: `mwifiex_pcie :02:00.0: Refused to change power state, currently in D3` > 2. if device is connected before the 1st suspend, no issue is seen after 1st > resume; > 3. if device is connected before 2nd suspend(i.e after 1st suspend_resume), > then issue is seen after 2nd resume Yes. However, the "cmd_timeout" will sometimes also occur after 1st resume for me. Also in this case, the message from mwifiex is the same as No. 1. > 4. if device is not at all connected during suspend_resume stress test, no > issue is seen For me, the "cmd_timeout" will occur regardless of AP connection status/rfkill status/power_save status. What changed by No. 4 is that, it will not cause the "lockup" (e.g. not preventing system shutdown) Also, I tried the patch 0001-mwifiex-set-PCIE-to-PCI_D0-power-state-on-resume on comment#105. - So far, the wifi is still working after several suspend. - I remember I've done exactly the same thing before and it did not work before. Hmm…? - The same message as No. 1 will still be printed on dmesg after the patch. - It may still not connect to AP automatically because it fails to find APs (`nmcli d wifi list` shows empty). This is easily fixed by reloading "mwifiex_pcie" module -- 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/1730924 Title: Wifi does down "crash" in Surface Pro 4 Status in Linux: Confirmed Status in linux package in Ubuntu: Incomplete Bug description: I have a Surface Pro 4. The wifi works well in principle, but unfortunately it drops every x minutes. The only way to fix it I've found is to reboot the computer. lsb_release -rd Description:Ubuntu 17.10 Release:17.10 ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-4.13.0-16-generic 4.13.0-16.19 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: predatux 1537 F pulseaudio CurrentDesktop: KDE Date: Wed Nov 8 10:41:26 2017 HibernationDevice: RESUME=UUID=147af4ba-a4ce-41fe-a176-b36a1f6a590b Lsusb: Bus 002 Device 002: ID 045e:090c Microsoft Corp. Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 045e:07e8 Microsoft Corp. Bus 001 Device 003: ID 1286:204c Marvell Semiconductor, Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Microsoft Corporation Surface Pro 4 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-16-generic root=UUID=125200b0-7377-4985-a217-15503781a525 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.13.0-16-generic N/A linux-backports-modules-4.13.0-16-generic N/A linux-firmware 1.169 SourcePackage: linux UpgradeStatus: Upgraded to artful on 2017-10-22 (16 days ago) dmi.bios.date: 02/24/2017 dmi.bios.vendor: Microsoft Corporation dmi.bios.version: 106.1624.768 dmi.board.name: Surface Pro 4 dmi.board.vendor: Microsoft Corporation dmi.chassis.type: 9 dmi.chassis.vendor: Microsoft Corporation dmi.modalias: dmi:bvnMicrosoftCorporation:bvr106.1624.768:bd02/24/2017:svnMicrosoftCorporation:pnSurfacePro4:pvrD0B08F1C03P38:rvnMicrosoftCorporation:rnSurfacePro4:rvr:cvnMicrosoftCorporation:ct9:cvr: dmi.product.family: Surface dmi.product.name: Surface Pro 4 dmi.product.version: D:0B:08F:1C:03P:38 dmi.sys.vendor: Microsoft Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1730924/+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
[Kernel-packages] [Bug 1730924]
Created attachment 285391 [PATCH] mwifiex: debugfs: add entry for device_dump This is a patch to add debugfs entry for device_dump. Just to test device_dump functionality on Surface devices. Usage: echo 1 | sudo tee /sys/kernel/debug/mwifiex/mlan0/device_dump -- 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/1730924 Title: Wifi does down "crash" in Surface Pro 4 Status in Linux: Confirmed Status in linux package in Ubuntu: Incomplete Bug description: I have a Surface Pro 4. The wifi works well in principle, but unfortunately it drops every x minutes. The only way to fix it I've found is to reboot the computer. lsb_release -rd Description:Ubuntu 17.10 Release:17.10 ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-4.13.0-16-generic 4.13.0-16.19 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: predatux 1537 F pulseaudio CurrentDesktop: KDE Date: Wed Nov 8 10:41:26 2017 HibernationDevice: RESUME=UUID=147af4ba-a4ce-41fe-a176-b36a1f6a590b Lsusb: Bus 002 Device 002: ID 045e:090c Microsoft Corp. Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 045e:07e8 Microsoft Corp. Bus 001 Device 003: ID 1286:204c Marvell Semiconductor, Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Microsoft Corporation Surface Pro 4 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-16-generic root=UUID=125200b0-7377-4985-a217-15503781a525 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.13.0-16-generic N/A linux-backports-modules-4.13.0-16-generic N/A linux-firmware 1.169 SourcePackage: linux UpgradeStatus: Upgraded to artful on 2017-10-22 (16 days ago) dmi.bios.date: 02/24/2017 dmi.bios.vendor: Microsoft Corporation dmi.bios.version: 106.1624.768 dmi.board.name: Surface Pro 4 dmi.board.vendor: Microsoft Corporation dmi.chassis.type: 9 dmi.chassis.vendor: Microsoft Corporation dmi.modalias: dmi:bvnMicrosoftCorporation:bvr106.1624.768:bd02/24/2017:svnMicrosoftCorporation:pnSurfacePro4:pvrD0B08F1C03P38:rvnMicrosoftCorporation:rnSurfacePro4:rvr:cvnMicrosoftCorporation:ct9:cvr: dmi.product.family: Surface dmi.product.name: Surface Pro 4 dmi.product.version: D:0B:08F:1C:03P:38 dmi.sys.vendor: Microsoft Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1730924/+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
[Kernel-packages] [Bug 1730924]
> But I fail to get these in my device(I don't know why, it is a different > problem); So, I still fail to confirm we are hitting same issue; Yeah, the device_dump is also a problematic one on Surface devices. It's reported that if_ops.device_dump() will cause lockups [1] (e.g. prevent system power off) I also confirmed that by 1. adding debugfs entry for calling that function 2. and called the function via debugfs (echo 1 | sudo tee /sys/kernel/debug/mwifiex/mlan0/device_dump) Sometimes I can get the device_dump log, sometimes I can't and it prevents system power off. I will post the patch which adds the debugfs entry to the next comment. I will post the dump log (along with the dmesg log) as soon as I manage to get the logs after wifi malfunctioning. By the way, the user manual on drivers/net/wireless/marvell/mwifiex/README describes that device_dump can be obtained by `cat fw_dump` but the debugfs entry does not exist anymore. References: [1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1730924/comments/99 Comment #99 : Bug #1730924 “Wifi does down “crash” in Surface Pro 4” : Bugs : linux package : Ubuntu -- 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/1730924 Title: Wifi does down "crash" in Surface Pro 4 Status in Linux: Confirmed Status in linux package in Ubuntu: Incomplete Bug description: I have a Surface Pro 4. The wifi works well in principle, but unfortunately it drops every x minutes. The only way to fix it I've found is to reboot the computer. lsb_release -rd Description:Ubuntu 17.10 Release:17.10 ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-4.13.0-16-generic 4.13.0-16.19 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: predatux 1537 F pulseaudio CurrentDesktop: KDE Date: Wed Nov 8 10:41:26 2017 HibernationDevice: RESUME=UUID=147af4ba-a4ce-41fe-a176-b36a1f6a590b Lsusb: Bus 002 Device 002: ID 045e:090c Microsoft Corp. Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 045e:07e8 Microsoft Corp. Bus 001 Device 003: ID 1286:204c Marvell Semiconductor, Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Microsoft Corporation Surface Pro 4 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-16-generic root=UUID=125200b0-7377-4985-a217-15503781a525 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.13.0-16-generic N/A linux-backports-modules-4.13.0-16-generic N/A linux-firmware 1.169 SourcePackage: linux UpgradeStatus: Upgraded to artful on 2017-10-22 (16 days ago) dmi.bios.date: 02/24/2017 dmi.bios.vendor: Microsoft Corporation dmi.bios.version: 106.1624.768 dmi.board.name: Surface Pro 4 dmi.board.vendor: Microsoft Corporation dmi.chassis.type: 9 dmi.chassis.vendor: Microsoft Corporation dmi.modalias: dmi:bvnMicrosoftCorporation:bvr106.1624.768:bd02/24/2017:svnMicrosoftCorporation:pnSurfacePro4:pvrD0B08F1C03P38:rvnMicrosoftCorporation:rnSurfacePro4:rvr:cvnMicrosoftCorporation:ct9:cvr: dmi.product.family: Surface dmi.product.name: Surface Pro 4 dmi.product.version: D:0B:08F:1C:03P:38 dmi.sys.vendor: Microsoft Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1730924/+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
[Kernel-packages] [Bug 1730924]
> acpi_call and remove/rescan the parent bridge of wifi (need to be installed) Sorry, I made a mistake acpi_call (need to be installed) and remove/rescan the parent bridge of wifi -- 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/1730924 Title: Wifi does down "crash" in Surface Pro 4 Status in Linux: Confirmed Status in linux package in Ubuntu: Incomplete Bug description: I have a Surface Pro 4. The wifi works well in principle, but unfortunately it drops every x minutes. The only way to fix it I've found is to reboot the computer. lsb_release -rd Description:Ubuntu 17.10 Release:17.10 ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-4.13.0-16-generic 4.13.0-16.19 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: predatux 1537 F pulseaudio CurrentDesktop: KDE Date: Wed Nov 8 10:41:26 2017 HibernationDevice: RESUME=UUID=147af4ba-a4ce-41fe-a176-b36a1f6a590b Lsusb: Bus 002 Device 002: ID 045e:090c Microsoft Corp. Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 045e:07e8 Microsoft Corp. Bus 001 Device 003: ID 1286:204c Marvell Semiconductor, Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Microsoft Corporation Surface Pro 4 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-16-generic root=UUID=125200b0-7377-4985-a217-15503781a525 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.13.0-16-generic N/A linux-backports-modules-4.13.0-16-generic N/A linux-firmware 1.169 SourcePackage: linux UpgradeStatus: Upgraded to artful on 2017-10-22 (16 days ago) dmi.bios.date: 02/24/2017 dmi.bios.vendor: Microsoft Corporation dmi.bios.version: 106.1624.768 dmi.board.name: Surface Pro 4 dmi.board.vendor: Microsoft Corporation dmi.chassis.type: 9 dmi.chassis.vendor: Microsoft Corporation dmi.modalias: dmi:bvnMicrosoftCorporation:bvr106.1624.768:bd02/24/2017:svnMicrosoftCorporation:pnSurfacePro4:pvrD0B08F1C03P38:rvnMicrosoftCorporation:rnSurfacePro4:rvr:cvnMicrosoftCorporation:ct9:cvr: dmi.product.family: Surface dmi.product.name: Surface Pro 4 dmi.product.version: D:0B:08F:1C:03P:38 dmi.sys.vendor: Microsoft Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1730924/+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
[Kernel-packages] [Bug 1730924]
Hi Verdre and Ganapathi, I own Surface Book 1 (Skylake, same as Surface Pro 4) and Surface 3 (non-pro, Intel Atom Cherry Trail) for daily usage and recently I got Surface Pro 4 (with broken sensor) for debugging purposes. env: - freshly installed Fedora 31 Beta on an external USB drive and use it on SP4 - run `sudo dnf upgrade` and now `uname -r` shows `5.3.2-300.fc31.x86_64` @Ganapathi > I am doing different try outs, I will update as soon I could recreate these; You mean you're having trouble recreating issues? On my SP4: - "cmd_timeout" This issue will occur after a second suspend like the dmesg log on Comment#91 regardless of 2.4GHz/5GHz AP or power_save on/off. So, I'm not sure why you cannot recreate this issue. - "Firmware wakeup failed" This issue will randomly occur after a while when using with 5GHz AP+power_save on - "WLAN FW already running! Skip FW dnld" after card reset As you can see on the dmesg log (Comment#91), after card reset, the firmware will not be re-downloaded on Surface devices. I think that re-downloading the firmware is the expected behavior. You may recreate this issue by this command: echo 1 | sudo tee /sys/kernel/debug/mwifiex/mlan0/reset After resetting, it shows these messages repeatedly on dmesg and wifi is not usable anymore: kern :info : [ 175.478500] mwifiex_pcie :02:00.0: cmd_wait_q terminated: -110 kern :info : [ 175.478510] mwifiex_pcie :02:00.0: deleting the crypto keys Maybe this is the simplest one to fix? and at least if resetting works, we can continue to use wifi. To reset the card with firmware re-downloading, currently I have to call an ACPI method using acpi_call and remove/rescan the parent bridge of wifi (need to be installed) like this: WIFI_PARENT=":00:1d.0" # SP4 specific ACPI_WIFI_RST_PATH="\_SB.PCI0.RP09.PXSX.PRWF._RST" # SP4 specific acall(){ echo "$1" | tee /proc/acpi/call >/dev/null && cat /proc/acpi/call;echo;} # wrapper modprobe acpi_call acall $ACPI_WIFI_RST_PATH echo 1 | tee "/sys/bus/pci/devices/$WIFI_PARENT/remove" sleep 1 echo 1 | tee /sys/bus/pci/rescan --- By the way, I find 2.4GHz AP is much more stable with even power_save on. 5GHz AP with power_save on causes wifi stop without any message on dmesg. It seems that showing APs (e.g. `nmcli d wifi list`) will temporarily fix the wifi stop. This is another issue from what we're discussing now, though. Best regards, Tsuchiya, Yuto (kitakar5525) -- 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/1730924 Title: Wifi does down "crash" in Surface Pro 4 Status in Linux: Confirmed Status in linux package in Ubuntu: Incomplete Bug description: I have a Surface Pro 4. The wifi works well in principle, but unfortunately it drops every x minutes. The only way to fix it I've found is to reboot the computer. lsb_release -rd Description:Ubuntu 17.10 Release:17.10 ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-4.13.0-16-generic 4.13.0-16.19 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: predatux 1537 F pulseaudio CurrentDesktop: KDE Date: Wed Nov 8 10:41:26 2017 HibernationDevice: RESUME=UUID=147af4ba-a4ce-41fe-a176-b36a1f6a590b Lsusb: Bus 002 Device 002: ID 045e:090c Microsoft Corp. Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 045e:07e8 Microsoft Corp. Bus 001 Device 003: ID 1286:204c Marvell Semiconductor, Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Microsoft Corporation Surface Pro 4 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-16-generic root=UUID=125200b0-7377-4985-a217-15503781a525 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.13.0-16-generic N/A linux-backports-modules-4.13.0-16-generic N/A linux-firmware 1.169 SourcePackage: linux UpgradeStatus: Upgraded to artful on 2017-10-22 (16 days ago) dmi.bios.date: 02/24/2017 dmi.bios.vendor: Microsoft Corporation dmi.bios.version: 106.1624.768 dmi.board.name: Surface Pro 4 dmi.board.vendor: Microsoft Corporation dmi.chassis.type: 9 dmi.chassis.vendor: Microsoft Corporation dmi.modalias: dmi:bvnMicrosoftCorporation:bvr106.1624.768:bd02/24/2017:svnMicrosoftCorporation:pnSurfacePro4:pvrD0B08F1C03P38:rvnMicrosoftCorporation:rnSurfacePro4:rvr:cvnMicrosoftCorporation:ct9:cvr: dmi.product.family: Surface dmi.product.name: Surface Pro 4 dmi.product.version: D:0B:08F:1C:03P:38 dmi.sys.vendor: Microsoft Corporation To manage notifications about this bug go to: