Ubuntu
linux-snapdragon package

Linux 5.4 from focal repo does not boot on Lenovo Yoga C630 WOS, while Linux 5.4 from mainline PPA does boot

Bug #1863939 reported by RussianNeuroMancer
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Confirmed
Undecided
Unassigned
linux-snapdragon (Ubuntu)
New
Undecided
Unassigned

Bug Description

Hello!

I found that both of generic and snapdragon kernels from focal repository (5.4.0-14-generic and 5.4.0-14-snapdragon was tested) does not boot on Lenovo Yoga C630 WOS. Boot process hang at "Loading device tree blob..." (which means I can not provide apport report, because I can not boot kernel from focal repository, and apport refuse to collect information with other kernels).

At the same time snapdragon kernel from https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.4.20/ boot mostly fine (albeit with https://bugzilla.kernel.org/show_bug.cgi?id=204685 and https://bugs.launchpad.net/bugs/1863761 ).

Tags: focal
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote : Missing required logs.

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1863939

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu):
status: New → Incomplete
tags: added: focal
Revision history for this message
Launchpad Janitor (janitor) wrote : Re: Linux 5.4.0-14 from focal repo does not boot on Lenovo Yoga C630 WOS, while Linux 5.4.0 from mainline PPA does boot

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

Changed in linux (Ubuntu):
status: Incomplete → Expired
Revision history for this message
RussianNeuroMancer (russianneuromancer) wrote :

See bug description.

Changed in linux (Ubuntu):
status: Expired → New
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote : Missing required logs.

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1863939

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu):
status: New → Incomplete
RussianNeuroMancer (russianneuromancer)
Changed in linux (Ubuntu):
status: Incomplete → Confirmed
Revision history for this message
RussianNeuroMancer (russianneuromancer) wrote :

Issue is still reproducible with Linux 5.8 on Ubuntu 20.10.

summary: - Linux 5.4.0-14 from focal repo does not boot on Lenovo Yoga C630 WOS,
- while Linux 5.4.0 from mainline PPA does boot
+ Linux 5.4 from focal repo does not boot on Lenovo Yoga C630 WOS, while
+ Linux 5.4 from mainline PPA does boot
Revision history for this message
RussianNeuroMancer (russianneuromancer) wrote :

Issue is still reproducible with Linux 5.11 on Ubuntu 21.04.

Revision history for this message
RussianNeuroMancer (russianneuromancer) wrote :

Issue is still reproducible with Linux 5.13 on Ubuntu 21.10.

At the same time, Linux 5.13 from mainline PPA works fine.

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