no HDMI video output since GDM greeter after linux-oem-osp1 version 5.0.0-1026
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Fix Released
|
Undecided
|
You-Sheng Yang | ||
Bionic |
Won't Fix
|
Undecided
|
Unassigned | ||
Eoan |
Fix Released
|
Medium
|
You-Sheng Yang | ||
Focal |
Fix Released
|
Undecided
|
You-Sheng Yang | ||
linux-oem-osp1 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Bionic |
Fix Released
|
Undecided
|
You-Sheng Yang | ||
Eoan |
Fix Released
|
Undecided
|
Unassigned | ||
Focal |
Invalid
|
Undecided
|
Unassigned |
Bug Description
[SRU Justification: oem-osp1-bionic]
[Impact]
Bug 1849278 introduced a regression on some Comet Lake platforms that
device may have no video output on HDMI port.
[Fix]
A currently in-review patch
https:/
correct PCH's identity and restore HDMI output.
[Test Case]
1. Apply the patches to oem-osp1 kernel >= 1026 or Eoan/Focal generic
kernels.
2. Boot affected platforms with HDMI cable connected to an external
monitor.
3. Check if the monitor lights up when GDM service is started.
This was verified in to victim platforms.
[Regression Risk]
Low. This should affects only systems with matching PCH hw that is
currently affected by the regression to be fixed.
=======
[SRU Justification: E/F/U]
[Impact]
Some Comet Lake platforms got i915 call trace dump due to the lake of
support to its PCH id:
[ 2.999233] ------------[ cut here ]------------
[ 2.999238] eDP powered off while attempting aux channel
communication.
[ 2.999338] WARNING: CPU: 2 PID: 296 at
drivers/
intel_
[ 2.999341] Modules linked in: i915(+) i2c_algo_bit drm_kms_helper
syscopyarea sysfillrect sysimgblt fb_sys_fops drm r8169 ahci realtek
libahci wmi video
[ 2.999350] CPU: 2 PID: 296 Comm: systemd-udevd Not tainted
5.3.0-997-generic #201910072204
[ 2.999352] Hardware name: Dell Inc. OptiPlex 3280 AIO/, BIOS
99.00.08 10/01/2019
[ 2.999391] RIP: 0010:intel_
[ 2.999394] Code: e8 ee b5 ff ff 84 c0 0f 85 ec f9 ff ff 48 8b 7d 80
e8 5d b6 ff ff 84 c0 0f 85 db f9 ff ff 48 c7 c7 50 22 5d c0 e8 84 ea b5
d1 <0f> 0b 48 8b 7d 80 48 8d 75 90 4c 8d ab a8 07 00 00 e8 63 b4 ff ff
[ 2.999398] RSP: 0018:ffffb70000
[ 2.999400] RAX: 0000000000000000 RBX: ffff9bfa9dc20000 RCX:
0000000000000396
[ 2.999402] RDX: 0000000000000001 RSI: 0000000000000082 RDI:
0000000000000246
[ 2.999404] RBP: ffffb7000040b698 R08: 0000000000000396 R09:
0000000000000019
[ 2.999406] R10: 000000000000072e R11: ffffb7000040b420 R12:
0000000000000004
[ 2.999408] R13: ffff9bfa9fbca120 R14: ffff9bfa9dc20000 R15:
ffff9bfa9dc207a8
[ 2.999410] FS: 00007f0d8613a68
knlGS:
[ 2.999412] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2.999414] CR2: 00007ffca955ae58 CR3: 000000041e67e002 CR4:
00000000003606e0
[ 2.999416] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 2.999418] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[ 2.999420] Call Trace:
[ 2.999425] ? vprintk_
[ 2.999464] intel_dp_
[ 2.999472] drm_dp_
[ 2.999478] drm_dp_
[ 2.999515] intel_dp_
[ 2.999551] intel_edp_
[ 2.999587] intel_dp_
[ 2.999623] intel_ddi_
[ 2.999660] intel_setup_
[Fix]
Two patches to be backported to have correct support:
* commit 37c92dc303dd "drm/i915: Add new CNL PCH ID seen on a CML
platform" from drm-tip tree.
* patch "https:/
[Test Case]
1. Apply the patches to oem-osp1 kernel >= 1026 or Eoan/Focal generic
kernels.
2. Boot affected platforms with HDMI cable connected to an external
monitor.
3. Check if the monitor lights up when GDM service is started.
This was verified in to victim platforms.
[Regression Risk]
Low. This should affects only systems with matching PCH hw that is
currently affected by the regression to be fixed.
========== original bug description ==========
This is a regression caused by bug 1849278, which sends external monitor (via HDMI port) to DPMS mode.
Commit 1d6870b9f9ca "UBUNTU: SAUCE: drm/i915: Add new CNL PCH ID seen on a CML platform"[1] was originated from https:/
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-
ProcVersionSign
Uname: Linux 5.0.0-1027-oem-osp1 x86_64
ApportVersion: 2.20.9-0ubuntu7.9
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
Date: Wed Nov 13 14:22:06 2019
DistributionCha
# This is the distribution channel descriptor for the OEM CDs
# For more information see http://
canonical-
InstallationDate: Installed on 2019-11-05 (8 days ago)
InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary 20190418-12:10
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0cf3:e007 Atheros Communications, Inc.
Bus 001 Device 002: ID 062a:4c01 Creative Labs
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Dell Inc. OptiPlex 3080
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=
PulseList:
Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
No PulseAudio daemon running, or not running as session daemon.
RelatedPackageV
linux-
linux-
linux-firmware 1.173.11
SourcePackage: linux-oem-osp1
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/04/2019
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 0.8.17
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.
dmi.product.family: OptiPlex
dmi.product.name: OptiPlex 3080
dmi.product.sku: 09A8
dmi.sys.vendor: Dell Inc.
description: | updated |
tags: | added: oem-priority originate-from-1850768 somerville |
Changed in linux (Ubuntu Bionic): | |
status: | New → Won't Fix |
Changed in linux (Ubuntu Eoan): | |
status: | Confirmed → In Progress |
assignee: | nobody → You-Sheng Yang (vicamo) |
Changed in linux (Ubuntu Focal): | |
assignee: | nobody → You-Sheng Yang (vicamo) |
Changed in linux-oem-osp1 (Ubuntu Bionic): | |
assignee: | nobody → You-Sheng Yang (vicamo) |
Changed in linux (Ubuntu Focal): | |
status: | Confirmed → In Progress |
Changed in linux-oem-osp1 (Ubuntu Bionic): | |
status: | New → In Progress |
description: | updated |
Changed in linux-oem-osp1 (Ubuntu Bionic): | |
status: | In Progress → Fix Committed |
Changed in linux-oem-osp1 (Ubuntu Focal): | |
status: | New → Invalid |
Changed in linux (Ubuntu Eoan): | |
importance: | Undecided → Medium |
Changed in linux (Ubuntu Eoan): | |
status: | In Progress → Fix Committed |
Changed in linux-oem-osp1 (Ubuntu Eoan): | |
status: | New → Fix Released |
Changed in hwe-next: | |
status: | New → Incomplete |
status: | Incomplete → Fix Released |
This change was made by a bot.