@vicamo
I tried your boot parameters, I'm attaching photos of the boot sequence
in a zip file.
I don't understand why booting work when "power" is connected (2
thunderbolt dock or notebook charger) and not when on battery.
** Attachment added: "boot sequence photos"
https://bugs.launchpad.ne
@vicamo, "system just hangs unless manually powered off. Is this
correct?": Yes !
1. It's work !
2. Yes, I attach the result
** Attachment added: "dmesg | grep microcode"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1853369/+attachment/5327645/+files/dmesg-microcode
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I'm running 19.10 with linux package 5.3.0-29.31 ... problem still here.
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Title:
[19.10] Boot hangs at "loading initial ramdisk"
St
I am also affected
My laptop hangs on "loading initial ramdisk" at startup. However, it
start up without any problems when the power supply is connected 0_o …
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You can find my data here :
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1858810
Ask me anything that'll help.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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*** This bug is a duplicate of bug 1853369 ***
https://bugs.launchpad.net/bugs/1853369
Public bug reported:
My laptop hangs on "loading initial ramdisk" at startup. However, it
start up without any problems when the power supply is connected 0_o …
ProblemType: Bug
DistroRelease: Ubuntu 19.10
apport information
** Tags added: apport-collected
** Description changed:
Image on my HiDPI 4K eDP screen (HP zbook 15) is flickering since I
upgraded my kernel to 4.4.0-59.
With 4.4.0-53 kernel, everything is ok.
I have try :
- 4.4.0-59
- 4.4.0-62
- 4.8.0-36 (from lin
apport information
** Attachment added: "UdevDb.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4834374/+files/UdevDb.txt
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apport information
** Attachment added: "CRDA.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4834363/+files/CRDA.txt
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apport information
** Attachment added: "ProcModules.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4834371/+files/ProcModules.txt
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I have encountered the same problem with kernel :
- 4.4.0-63
- 4.4.0-64
... and Finally : the kernel 4.4.0-66 restore normal operation. I don't
see flickering anymore.
Thanks to anybody who work on this issue !
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apport information
** Attachment added: "PulseList.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4834372/+files/PulseList.txt
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apport information
** Attachment added: "ProcCpuinfo.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4834369/+files/ProcCpuinfo.txt
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apport information
** Attachment added: "RfKill.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4834373/+files/RfKill.txt
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apport information
** Attachment added: "ProcInterrupts.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4834370/+files/ProcInterrupts.txt
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apport information
** Attachment added: "Lsusb.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4834368/+files/Lsusb.txt
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apport information
** Attachment added: "JournalErrors.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4834366/+files/JournalErrors.txt
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apport information
** Attachment added: "Lspci.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4834367/+files/Lspci.txt
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apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4834375/+files/WifiSyslog.txt
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apport information
** Attachment added: "CurrentDmesg.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4834364/+files/CurrentDmesg.txt
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apport information
** Attachment added: "IwConfig.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4834365/+files/IwConfig.txt
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Is it always necessary for you I test the 4.4.0-58 kernel ?
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Title:
Image flickering on eDP screen since 4.4.0-59 kernel upgrade
St
apport information
** Attachment added: "JournalErrors.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4835464/+files/JournalErrors.txt
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apport information
** Attachment added: "PulseList.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4835470/+files/PulseList.txt
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apport information
** Attachment added: "Lsusb.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4835466/+files/Lsusb.txt
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apport information
** Attachment added: "UdevDb.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4835472/+files/UdevDb.txt
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apport information
** Description changed:
Image on my HiDPI 4K eDP screen (HP zbook 15) is flickering since I
upgraded my kernel to 4.4.0-59.
With 4.4.0-53 kernel, everything is ok.
I have try :
- 4.4.0-59
- 4.4.0-62
- 4.8.0-36 (from linux-generic-hwe-16.04)
All of
apport information
** Attachment added: "ProcInterrupts.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4835468/+files/ProcInterrupts.txt
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apport information
** Attachment added: "ProcCpuinfo.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4835467/+files/ProcCpuinfo.txt
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apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4835473/+files/WifiSyslog.txt
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** Attachment added: "IwConfig.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4835463/+files/IwConfig.txt
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apport information
** Attachment added: "ProcModules.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4835469/+files/ProcModules.txt
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Hello,
Today I give a try to the 4.8.0-41 kernel (from linux-generic-hwe-16.04)
and flickering affect this kernel !
So, I do an $( apport-collect 1663637 ) during the use of that kernel
and now I'll go back to 4.4.0-66 to restore a stable display.
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apport information
** Attachment added: "RfKill.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4835471/+files/RfKill.txt
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apport information
** Attachment added: "Lspci.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4835465/+files/Lspci.txt
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apport information
** Attachment added: "CRDA.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4835461/+files/CRDA.txt
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apport information
** Attachment added: "CurrentDmesg.txt"
https://bugs.launchpad.net/bugs/1663637/+attachment/4835462/+files/CurrentDmesg.txt
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Hi, here a video of the problem...
** Attachment added: "Demonstration"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1663637/+attachment/4836850/+files/radeon_flickering.mp4
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This time, GDM failed to launch (without dock). I ended the startup sequence on
a blinking cursor in the upper left corner and that was it.
I was able to connect to the TTY2 where I ran htop. There I plugged the dock
and a kernel oops was displayed. Then, htop progressively erased it partially.
>
Result: partial freeze of the screens. No mouse but keyboard ok. htop
running but unable to launch a new prompt or any other process.
** Attachment added: "journalctl.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1940113/+attachment/5523256/+files/journalctl.log
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Sorry for the wait, I took a few days off.
This kernel worked well.
** Attachment added: "journalctl.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1940113/+attachment/5525012/+files/journalctl.log
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I tried the new kernel 5.11.0-36-generic, but the problem is still there.
I'm attaching the log in case it's helpful.
** Attachment added: "journalctl.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1940113/+attachment/5526932/+files/journalctl.log
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** Attachment added: "lspci -vv"
https://bugs.launchpad.net/ubuntu/+source/linux-meta-hwe-5.13/+bug/1974434/+attachment/5591560/+files/lspci-vv
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Public bug reported:
After updating linux-image-generic-hwe-20.04 to 5.13.0-41-generic,
After getting the 5.13.0-41-generic update from the linux-image-generic-
hwe-20.04 package, I get a black screen right after the Grub menu is
displayed.
Selecting the previous kernel in the advanced menu of G
Here the journalctl -k of one machine with the problem (obtained via
ssh)
** Attachment added: "journalctl.k.log"
https://bugs.launchpad.net/ubuntu/+source/linux-meta-hwe-5.13/+bug/1974434/+attachment/5591554/+files/journalctl.k.log
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new lshw with C locale
** Attachment added: "sudo lshw"
https://bugs.launchpad.net/ubuntu/+source/linux-meta-hwe-5.13/+bug/1974434/+attachment/5591561/+files/lshw
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** Attachment added: "sudo lshw"
https://bugs.launchpad.net/ubuntu/+source/linux-meta-hwe-5.13/+bug/1974434/+attachment/5591556/+files/lshw
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Public bug reported:
Hello,
My laptop run well with last 5.4 linux kernel even if I connect my
thunderbolt dock.
When trying to boot with 5.11.0-25 or 5.11.0-27 (hwe) kernel with dock
and 2 monitors connected, the kernel panic after 3 or 4 seconds. Without
the dock, he work fine.
After a lot of
** Attachment added: "journalctl -k -b -1 > journal.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1940113/+attachment/5518125/+files/journal.log
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apport information
** Attachment added: "ProcCpuinfoMinimal.txt"
https://bugs.launchpad.net/bugs/1940113/+attachment/5518154/+files/ProcCpuinfoMinimal.txt
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apport information
** Attachment added: "RfKill.txt"
https://bugs.launchpad.net/bugs/1940113/+attachment/5518158/+files/RfKill.txt
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apport information
** Attachment added: "ProcModules.txt"
https://bugs.launchpad.net/bugs/1940113/+attachment/5518156/+files/ProcModules.txt
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** Attachment added: "PulseList.txt"
https://bugs.launchpad.net/bugs/1940113/+attachment/5518157/+files/PulseList.txt
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** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1940113/+attachment/5518160/+files/WifiSyslog.txt
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** Attachment added: "ProcCpuinfo.txt"
https://bugs.launchpad.net/bugs/1940113/+attachment/5518153/+files/ProcCpuinfo.txt
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** Attachment added: "Lsusb.txt"
https://bugs.launchpad.net/bugs/1940113/+attachment/5518150/+files/Lsusb.txt
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** Attachment added: "CRDA.txt"
https://bugs.launchpad.net/bugs/1940113/+attachment/5518145/+files/CRDA.txt
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apport information
** Attachment added: "ProcInterrupts.txt"
https://bugs.launchpad.net/bugs/1940113/+attachment/5518155/+files/ProcInterrupts.txt
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apport information
** Attachment added: "Lsusb-v.txt"
https://bugs.launchpad.net/bugs/1940113/+attachment/5518152/+files/Lsusb-v.txt
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** Attachment added: "CurrentDmesg.txt"
https://bugs.launchpad.net/bugs/1940113/+attachment/5518146/+files/CurrentDmesg.txt
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apport information
** Tags added: apport-collected focal
** Description changed:
Hello,
My laptop run well with last 5.4 linux kernel even if I connect my
thunderbolt dock.
When trying to boot with 5.11.0-25 or 5.11.0-27 (hwe) kernel with dock
and 2 monitors connected, the kernel
apport information
** Attachment added: "Lspci.txt"
https://bugs.launchpad.net/bugs/1940113/+attachment/5518148/+files/Lspci.txt
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** Attachment added: "IwConfig.txt"
https://bugs.launchpad.net/bugs/1940113/+attachment/5518147/+files/IwConfig.txt
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apport information
** Attachment added: "UdevDb.txt"
https://bugs.launchpad.net/bugs/1940113/+attachment/5518159/+files/UdevDb.txt
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** Attachment added: "acpidump.txt"
https://bugs.launchpad.net/bugs/1940113/+attachment/5518161/+files/acpidump.txt
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** Attachment added: "Lspci-vt.txt"
https://bugs.launchpad.net/bugs/1940113/+attachment/5518149/+files/Lspci-vt.txt
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** Attachment added: "Lsusb-t.txt"
https://bugs.launchpad.net/bugs/1940113/+attachment/5518151/+files/Lsusb-t.txt
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Ok, but I don't know how to "take a snapshot" while my machine run into
a kernel panic.
Can you explain me how to do that ?
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Title:
5.14.0-rc7 boot without problem even if the dock and the two additional screen
are plugged in.
I put the boot log in attachment
** Attachment added: "journalctl -k -b -1"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1940113/+attachment/5520108/+files/journal.log
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** Attachment added: "dpkg -i *5.14*.deb"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1940113/+attachment/5520109/+files/dpkg.log
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If it helps, I also post the result of `journalctl -k -b all` here.
I have the impression that the kernel panic of kernel 5.11 does not
appear, the crash occurs systematically between seconds 2 and 4 of the
boot sequence.
However, this extraction contains logs of successful boot on kernel
5.11, w
@Chris Chiu (mschiu77): "And does it only happen 100% when 2 monitors
connected?" → Yes !
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Title:
Linux 5.11.0-25 & 5.11.0-27 panic
Ok, sorry, I went a little too fast!
The attachment #23 does not contain the right log. Apologize.
Fortunately, attachment #25 contains interesting items. Look for the
sequence "-- Reboot --" and there, at occurrence #54 and #55, there
seems to be traces of kernel panic. There are also two boot se
I just tested both kernels and here are the results:
I first rebooted on the 5.11.0-33 kernel with the dock and the two screens
connected.
The system froze after 3s of boot.
I unplugged the dock and rebooted on the 5.11.0-33 kernel.
The boot went well until the desktop. There, I reconnected the
@Chris Chiu (mschiu77): "So the mainline 5.14 works for you even with 2
monitors connected, right?" → Yes !
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Title:
Linux 5.11.0-25
You're welcome. Thank you for taking time to solve this problem! The
result was close to the previous version 5.13:
The boot with dock and dual screen crashed at 4s then, after a dozen
seconds, a kernel dump was displayed, then nothing.
The startup without the dock went well, then the connection
I booted the kernel 5.13.12 with the dock unplugged, everything went
well. Once the dock was plugged in, the screen froze but strangely this
time, I could move the mouse on the screen (with the trackpad of the
laptop). Maybe I didn't notice this possibility before?
I then started the kernel 5.14.r
There are no deb packages in the first link (rc1).
The rc2 version started and worked without problem with the dock and the
two screens.
** Attachment added: "journalctl.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1940113/+attachment/5521666/+files/journalctl.log
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And here is the result: complete freeze of the screens. I attached the logs as
usual.
So 5.14.0-rc2 works and 5.13.13 crash. It remains to find what has been
corrected between these two versions?
** Attachment added: "journalctl.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/19401
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