See bug 1813745: Kai-Heng provided a 4.15.0-45 test kernel which fixes
the issue.
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https://bugs.launchpad.net/bugs/1813663
Title:
External monitors does not work anymore
As stated in bug 1813831 thread, the issue is related to a change in the
graphic driver's DPMS sequence. It was introduced in 4.15.0-44, and
reverted in 4.15.0-45 made available for testing in the other bug's thread.
Meaning that it's not related to thunderbolt docks, nor docks at all,
but to
I've changed the tag 'verification-needed-bionic' to 'verification-done-
bionic'.
** Tags removed: verification-needed-bionic
** Tags added: verification-done-bionic
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*** This bug is a duplicate of bug 1813663 ***
https://bugs.launchpad.net/bugs/1813663
Hi Kai,
I (the original bug reporter) have the same issue on my Dell 9370:
- 4.15.0-43 boots fine
- 4.15.0-44 hangs at or before login GUI
- your 4.0.15-45 test kernel boots fine
- the official
I've been offered a signed 4.15.0-45 kernel through software update.
This one also breaks boot, same as 4.15.0-44.
Only Kai's unsigned 4.15.0-45 test kernels boots OK.
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*** This bug is a duplicate of bug 1813663 ***
https://bugs.launchpad.net/bugs/1813663
Kai,
Your test kernel fixes my issue, but the official -45 released today
still crashes at boot.
So the official -45 kernel does not include your fix, or includes it
with other breaking changes.
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Public bug reported:
I updated my machine's kernel to 4.15.0-44. After a restart the whole
machine was messed up.
The machine starts regularly up to the point, where the graphical
interface would appear (rough guess). The monitor gets black (normal) to
change the screen resolution.
apport information
** Attachment added: "CRDA.txt"
https://bugs.launchpad.net/bugs/1813745/+attachment/5233550/+files/CRDA.txt
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apport information
** Attachment added: "IwConfig.txt"
https://bugs.launchpad.net/bugs/1813745/+attachment/5233552/+files/IwConfig.txt
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apport information
** Attachment added: "ProcCpuinfoMinimal.txt"
https://bugs.launchpad.net/bugs/1813745/+attachment/5233556/+files/ProcCpuinfoMinimal.txt
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apport information
** Tags added: apport-collected
** Description changed:
I updated my machine's kernel to 4.15.0-44. After a restart the whole
machine was messed up.
The machine starts regularly up to the point, where the graphical
interface would appear (rough guess). The monitor
apport information
** Attachment added: "Lspci.txt"
https://bugs.launchpad.net/bugs/1813745/+attachment/5233553/+files/Lspci.txt
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https://bugs.launchpad.net/bugs/1813745
apport information
** Attachment added: "ProcModules.txt"
https://bugs.launchpad.net/bugs/1813745/+attachment/5233558/+files/ProcModules.txt
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apport information
** Attachment added: "CurrentDmesg.txt"
https://bugs.launchpad.net/bugs/1813745/+attachment/5233551/+files/CurrentDmesg.txt
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apport information
** Attachment added: "UdevDb.txt"
https://bugs.launchpad.net/bugs/1813745/+attachment/5233561/+files/UdevDb.txt
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apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1813745/+attachment/5233562/+files/WifiSyslog.txt
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Note that all apport attachments above were done running 4.15.0-43
kernel and not the problematic 4.15.0-44, with which I cannot boot to
login.
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apport information
** Attachment added: "RfKill.txt"
https://bugs.launchpad.net/bugs/1813745/+attachment/5233560/+files/RfKill.txt
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apport information
** Attachment added: "PulseList.txt"
https://bugs.launchpad.net/bugs/1813745/+attachment/5233559/+files/PulseList.txt
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apport information
** Attachment added: "ProcCpuinfo.txt"
https://bugs.launchpad.net/bugs/1813745/+attachment/5233555/+files/ProcCpuinfo.txt
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apport information
** Attachment added: "Lsusb.txt"
https://bugs.launchpad.net/bugs/1813745/+attachment/5233554/+files/Lsusb.txt
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https://bugs.launchpad.net/bugs/1813745
apport information
** Attachment added: "ProcInterrupts.txt"
https://bugs.launchpad.net/bugs/1813745/+attachment/5233557/+files/ProcInterrupts.txt
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What is the procedure to test this kernel? (I normally get & install
kernels through Ubuntu software update, and have never installed one
from the shell)
Also, in case of GUI hang during boot (as is the case with 4-15-0-44),
is there a way to reboot the machine without thrashing the root
Done.
This fixes the issue, I can safely boot and login to desktop using
4.15.0-45.
Cordialement,
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Stéphane GUILLARD
Le 29/01/2019 à 12:16, Kai-Heng Feng a écrit :
> Download the .deb files to an empty directory, then open terminal,
> $ cd $(the directory)
> $ sudo dpk
I installed the 4.15.0-45 test kernel at
https://people.canonical.com/~khfeng/lp1813663/
This fixes the issue, I can safely boot and login.
Thank you Kai-Heng.
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Same
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https://bugs.launchpad.net/bugs/1813745
Title:
ubuntu 18-04 hangs on graphical start with kernel 4-15-0-44
Status in linux package in Ubuntu:
Confirmed
Bug
Download the .deb files to an empty directory, then open terminal,
$ cd $(the directory)
$ sudo dpkg -i *deb
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https://bugs.launchpad.net/bugs/1813745
Title:
ubuntu 18-04
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