Hi @kaihengfeng,
I am not familiar with kernel/git bisection and was unable to do what
you asked, partly because I couldn't boot into linux/ubuntu to begin
with, and updating the kernel from 19.10 wouldn't test all the other
services that could be at play.
However, after repeated efforts or resta
Confirming headphones work with 5.7.x kernel, board name: NP930MBE-
K04US.
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https://bugs.launchpad.net/bugs/1834566
Title:
Samsung Notebook 9 Pro - Internal Speaker Playbac
Older version Live USBs work. I am currently running on a Live Backup
19.10 to write this. I am only having an issue with 20.04.
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https://bugs.launchpad.net/bugs/1878726
Ti
Live USB fails to boot or provide command line for submitting log file.
I am attaching a video (excuse the poor quality) that captures the load
sequence. Hopefully this is insightful enough for helping to
troubleshoot.
** Attachment added: "Loading screen capture"
https://bugs.launchpad.net/u
@kaihengfeng, not sure how to capture dmesg, as the boot process never
completes preventing me from accessing a command line. Also, I am
unable to switch to another TTY session. Can you please provide guidance
or direct me to a article that explains how to capture the log?
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I tried booting in safe graphics mode. It gets stuck in an endless
loop:
watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [kworker/u8:3:194]
rcu: INFO: rcu_sched self-detected stall on CPU
rcu: $0-...: (14999 ticks this GP) idle=736/1/0x4002
softirq=5356/5356 fqs=7398
[FAILED] Faile
I created a live USB of my system using systemback before trying to
upgrade from 19.10 to 20.04. My live USB backup works fine. I tried a
Fedora 31 live USB and it works fine. I also used different methods to
create the 20.04 Live USB thinking it might have been a corrupt iso. I
tested the last
Unable to load kernel to generate log file.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1878726
Title:
Live USB I
Public bug reported:
Live USB made from ubuntu-20.04-desktop-amd64 fails to boot. System
hangs with watchdog: BUG: soft lockup - CPU# and rcu: INFO: rcu_sched
self-detected stall on CPU.
System specs:
Intel(R) i7-7500U running AMD discrete graphics
Have tested the Live USB on other systems with
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