i915 kernel call trace dumped randomly

[Alex Tu]

The i915 kernel call traced is dumping into dmesg randomly consistently.

Solution I tried:
1. dist-upgrade : no work
2. mainline kernel 5.4 : works , no i915 call trace for a while

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-oem-osp1 5.0.0.1040.45
ProcVersionSignature: Ubuntu 5.0.0-1040.45-oem-osp1 5.0.21
Uname: Linux 5.0.0-1040-oem-osp1 x86_64
ApportVersion: 2.20.9-0ubuntu7.11
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ubuntu 1731 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Fri Mar 6 15:00:50 2020
DistributionChannelDescriptor:
 # This is the distribution channel descriptor for the OEM CDs
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-bionic-amd64-20190418-59+beaver-osp1-melisa+X31
InstallationDate: Installed on 2020-03-06 (0 days ago)
InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary 20190418-12:10
IwConfig:
 lo no wireless extensions.

 enx00e04c000af0 no wireless extensions.
MachineType: Dell Inc. XPS 13 9300
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.0.0-1040-oem-osp1 root=UUID=72d9f512-8581-4d1c-aa63-d3eb2a12426c ro debug-oem-config automatic-oem-config quiet splash vt.handoff=1
RelatedPackageVersions:
 linux-restricted-modules-5.0.0-1040-oem-osp1 N/A
 linux-backports-modules-5.0.0-1040-oem-osp1 N/A
 linux-firmware 1.173.15
RfKill:

SourcePackage: linux-oem-osp1
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/26/2020
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.0.7
dmi.board.name: 019A14
dmi.board.vendor: Dell Inc.
dmi.board.version: X02
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.0.7:bd02/26/2020:svnDellInc.:pnXPS139300:pvr:rvnDellInc.:rn019A14:rvrX02:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 13 9300
dmi.product.sku: 096D
dmi.sys.vendor: Dell Inc.

[You-Sheng Yang (vicamo)]

Please try disable fwupd synaptics mst plugin. This seems to share similar symptom with bug 1826691.

[Gilbertf (gilbert-fernandes)]

I have the same stuff in my dmes

Could you explain how I can "disable fwupd synaptics mst plugin" exactly ??

[Gilbertf (gilbert-fernandes)]

So. I have a loop of continous i915 dumps in my dmesg
the i915 is the graphic chip

I dont understand what the synaptics has to do with the i915...

Went to check https://github.com/fwupd/fwupd/tree/master/plugins/synaptics-mst
And I used the command : fwupdmgr get-devices
Since they say it will report supported devices

I get this :

XPS 13 9300 System Firmware
  DeviceId: f2f44dcc012cdad82b823131f5c85ebfb74d782e
  Guid: e8292593-e66e-4878-b051-f152535ab130
  Plugin: uefi
  Flags: internal|updatable|require-ac|supported|registered|needs-reboot
  Version: 0.1.0.11
  VersionLowest: 0.1.0.11
  VersionFormat: quad
  Icon: computer
  Created: 2020-06-10

KXG60ZNV1T02 NVMe KIOXIA 1024GB
  DeviceId: ac1ce3be70e444b92f99fe08c9b957efb9d0ee53
  Guid: 8a412b95-5c07-5ce4-b63a-f9cbf254dd5d <- STORAGE-DELL-107443
  Guid: 344c2804-4948-e811-842f-0ed5f89f718b
  Serial: 305A621YK84L
  Summary: NVM Express Solid State Drive
  Plugin: nvme
  Flags: internal|updatable|require-ac|supported|registered|needs-reboot|no-auto-instance-ids
  Vendor: Toshiba America Info Systems
  VendorId: NVME:0x1179
  Version: 10604106
  VersionFormat: plain
  Icon: drive-harddisk
  Created: 2020-06-10

So what is the link betwene having the i915 driver contiously spitting out this :

Jun 10 22:32:40 asgard kernel: [ 2484.694044] Call Trace:
Jun 10 22:32:40 asgard kernel: [ 2484.694054] hsw_power_well_enable+0xaf/0x1d0 [i915]
Jun 10 22:32:40 asgard kernel: [ 2484.694065] icl_tc_phy_aux_power_well_enable+0x7f/0x90 [i915]
Jun 10 22:32:40 asgard kernel: [ 2484.694075] intel_power_well_enable+0x3f/0x50 [i915]
Jun 10 22:32:40 asgard kernel: [ 2484.694085] __intel_display_power_get_domain+0x75/0x90 [i915]
Jun 10 22:32:40 asgard kernel: [ 2484.694095] intel_display_power_get+0x33/0x50 [i915]
Jun 10 22:32:40 asgard kernel: [ 2484.694110] intel_dp_detect+0x96/0x5b0 [i915]
Jun 10 22:32:40 asgard kernel: [ 2484.694111] ? ww_mutex_lock+0x64/0x70
Jun 10 22:32:40 asgard kernel: [ 2484.694116] drm_helper_probe_detect+0x50/0x90 [drm_kms_helper]
Jun 10 22:32:40 asgard kernel: [ 2484.694118] drm_helper_probe_single_connector_modes+0xd8/0x730 [drm_kms_helper]
Jun 10 22:32:40 asgard kernel: [ 2484.694126] ? drm_atomic_get_property+0x1a3/0x620 [drm]
Jun 10 22:32:40 asgard kernel: [ 2484.694132] drm_mode_getconnector+0x22d/0x500 [drm]
Jun 10 22:32:40 asgard kernel: [ 2484.694138] ? drm_connector_property_set_ioctl+0x60/0x60 [drm]
Jun 10 22:32:40 asgard kernel: [ 2484.694144] drm_ioctl_kernel+0xae/0xf0 [drm]
Jun 10 22:32:40 asgard kernel: [ 2484.694149] drm_ioctl+0x389/0x450 [drm]
Jun 10 22:32:40 asgard kernel: [ 2484.694155] ? drm_connector_property_set_ioctl+0x60/0x60 [drm]
Jun 10 22:32:40 asgard kernel: [ 2484.694156] ? new_sync_write+0x10c/0x170
Jun 10 22:32:40 asgard kernel: [ 2484.694158] do_vfs_ioctl+0xa9/0x640
Jun 10 22:32:40 asgard kernel: [ 2484.694158] ? vfs_write+0x12e/0x1a0
Jun 10 22:32:40 as...