I Can confirm the same behavior on my machine
5.15.0-53-generic #59-Ubuntu SMP Mon Oct 17 18:53:30 UTC 2022 x86_64
x86_64 x86_64 GNU/Linux
I get
i915 :00:02.0: [drm] *ERROR* Sending link address failed with -5
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I seem to have the same problem in Jammy with the kernel
5.15.0-47-generic and with the latest firmware updates. The only
difference is dmesg speak of pipe B instead of pipe A:
[ 509.965244] i915 :00:02.0: [drm] *ERROR* Link Training Unsuccessful
[ 509.990694] i915 :00:02.0: [drm]
** Changed in: hwe-next
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1903969
Title:
failed to boot to GUI: i915 :00:02.0: [drm] *ERROR*
This bug was fixed in the package linux - 5.10.0-14.15
---
linux (5.10.0-14.15) hirsute; urgency=medium
* hirsute/linux: 5.10.0-14.15 -proposed tracker (LP: #1913724)
* Restore palm ejection on multi-input devices (LP: #1913520)
- HID: multitouch: Apply MT_QUIRK_CONFIDENCE
** Tags added: originate-from-1892304
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Title:
failed to boot to GUI: i915 :00:02.0: [drm] *ERROR* Link Training
** Changed in: linux-oem-5.10 (Ubuntu Focal)
Status: Fix Committed => Fix Released
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Title:
failed to boot to GUI:
** Tags added: originate-from-1894066
** Tags added: originate-from-1895638
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Title:
failed to boot to GUI: i915
** Tags added: originate-from-1907526
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Title:
failed to boot to GUI: i915 :00:02.0: [drm] *ERROR* Link Training
These patches have been merged into mainline via drm-next-2020-12-18 for
v5.11.
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Title:
failed to boot to GUI: i915
oem-5.6 will be eol in two months, most likely too late to get a big
backport in it
** Changed in: linux-oem-5.6 (Ubuntu Focal)
Status: New => Won't Fix
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** Tags removed: verification-needed-focal
** Tags added: verification-done-focal
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Title:
failed to boot to GUI: i915
Kernel in proposed solved the problem, system can now boot correctly
with monitor connected on WD19 docking, with docking connected on system
TBT port. Done 10 cold boot and 10 warm boot cycles, all pass.
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This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
focal' to 'verification-done-focal'. If the problem still exists, change
the tag
** Changed in: linux-oem-5.10 (Ubuntu Focal)
Status: In Progress => Fix Committed
** Changed in: linux (Ubuntu Groovy)
Status: New => Won't Fix
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** Description changed:
[SRU Justification]
[Impact]
On platforms supported DP tunneling over USB 3.2 or so, a Retimer is
required on the host side to cover insertion loss. On such platforms the
rtimer firmware maybe configured to use LTTPR (Link Training Tunable PHY
Repeater)
SRU: https://lists.ubuntu.com/archives/kernel-
team/2020-November/115002.html (G & H)
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Title:
failed to boot to GUI: i915
SRU: https://lists.ubuntu.com/archives/kernel-
team/2020-November/114986.html (unstable & oem-5.10)
** Changed in: linux-oem-5.10 (Ubuntu Focal)
Importance: Undecided => High
** Changed in: linux-oem-5.10 (Ubuntu Focal)
Status: New => In Progress
** Changed in: linux-oem-5.10 (Ubuntu
** Also affects: linux-oem-5.10 (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux-oem-5.10 (Ubuntu Groovy)
Status: New => Invalid
** Changed in: linux-oem-5.6 (Ubuntu Groovy)
Status: New => Invalid
** Changed in: linux-oem-5.6 (Ubuntu Hirsute)
** Also affects: linux (Ubuntu Groovy)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Hirsute)
Importance: Undecided
Status: Incomplete
** Also affects: linux (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Hirsute)
PPA: https://launchpad.net/~vicamo/+archive/ubuntu/ppa-1903969
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Title:
failed to boot to GUI: i915 :00:02.0: [drm] *ERROR* Link
$ git bisect log
git bisect start
# old: [f8394f232b1eab649ce2df5c5f15b0e528c92091] Linux 5.10-rc3
git bisect old f8394f232b1eab649ce2df5c5f15b0e528c92091
# new: [c0f98d2f8b076bf3e3183aa547395f919c943a14] Merge tag
'drm-misc-next-2020-11-05' of git://anongit.freedesktop.org/drm/drm-misc into
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