oem-osp1-bionic:
https://lists.ubuntu.com/archives/kernel-team/2019-November/105448.html
E/F/U: https://lists.ubuntu.com/archives/kernel-team/2019-November/105450.html
** Changed in: linux (Ubuntu Eoan)
Status: Confirmed => In Progress
** Changed in: linux (Ubuntu Eoan)
Assignee: (unassigned) => You-Sheng Yang (vicamo)
** Changed in: linux (Ubuntu Focal)
Assignee: (unassigned) => You-Sheng Yang (vicamo)
** Changed in: linux-oem-osp1 (Ubuntu Bionic)
Assignee: (unassigned) => 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 changed:
+ [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://patchwork.freedesktop.org/patch/340416 should be applied to
+ 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/gpu/drm/i915/display/intel_dp.c:1148
+ intel_dp_aux_xfer+0x767/0x900 [i915]
+ [ 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_dp_aux_xfer+0x767/0x900 [i915]
+ [ 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:ffffb7000040b5b8 EFLAGS: 00010286
+ [ 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: 00007f0d8613a680(0000) GS:ffff9bfaaec80000(0000)
+ knlGS:0000000000000000
+ [ 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_default+0x29/0x50
+ [ 2.999464] intel_dp_aux_transfer+0x15e/0x220 [i915]
+ [ 2.999472] drm_dp_dpcd_access+0x72/0x110 [drm_kms_helper]
+ [ 2.999478] drm_dp_dpcd_read+0x33/0xc0 [drm_kms_helper]
+ [ 2.999515] intel_dp_read_dpcd+0x41/0x130 [i915]
+ [ 2.999551] intel_edp_init_connector+0x136/0x540 [i915]
+ [ 2.999587] intel_dp_init_connector+0x47f/0x870 [i915]
+ [ 2.999623] intel_ddi_init+0x425/0x590 [i915]
+ [ 2.999660] intel_setup_outputs+0x8e4/0xc60 [i915]
+
+ [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://patchwork.freedesktop.org/patch/340416";
+
+ [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://bugs.freedesktop.org/show_bug.cgi?id=112051 patch
https://bugs.freedesktop.org/attachment.cgi?id=145786 , which can cause
this regression and was then revised by
https://bugs.freedesktop.org/attachment.cgi?id=145843 and is currently
in review in
https://patchwork.freedesktop.org/patch/340416/?series=69345&rev=1 .
[1]: https://git.launchpad.net/~canonical-kernel/ubuntu/+source/linux-
oem-osp1/+git/bionic/commit/?h=oem-
next&id=1d6870b9f9cab73179d694479e7ec667f7e1e2e7
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-5.0.0-1027-oem-osp1 5.0.0-1027.31
ProcVersionSignature: Ubuntu 5.0.0-1027.31-oem-osp1 5.0.21
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/controlC0: gdm 1739 F.... pulseaudio
Date: Wed Nov 13 14:22:06 2019
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-ygritte+X28
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=/boot/vmlinuz-5.0.0-1027-oem-osp1
root=UUID=05eaedf0-39f2-4353-9c49-de8aa0ebc39b ro reboot=efi drm.debug=0x107
log_bug_len=32M
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.
RelatedPackageVersions:
linux-restricted-modules-5.0.0-1027-oem-osp1 N/A
linux-backports-modules-5.0.0-1027-oem-osp1 N/A
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.:bvr0.8.17:bd11/04/2019:svnDellInc.:pnOptiPlex3080:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct3:cvr:
dmi.product.family: OptiPlex
dmi.product.name: OptiPlex 3080
dmi.product.sku: 09A8
dmi.sys.vendor: Dell Inc.
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https://bugs.launchpad.net/bugs/1852386
Title:
no HDMI video output since GDM greeter after linux-oem-osp1 version
5.0.0-1026
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