** Tags added: cscc
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https://bugs.launchpad.net/bugs/1787251
Title:
No sound devices after booting 4.15.0-32-generic
Status in linux package in Ubuntu:
Invalid
Status in
Correct. This turned out to actually be an issue with the installed
image having proposed enabled by default which allowed the machine to
get into a weird state. It turned out not to be a bug in kernel,
packaging, or unattended-upgrades.
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Dean and I decided last week that this is most likely a bug in the
unattended-upgrades code. I'm marking the Bionic linux task as invalid
since it doesn't look like a bug in the kernel packaging.
** Changed in: linux (Ubuntu Bionic)
Status: New => Invalid
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Dean has confirmed that his audio is working fine after installing
linux-image-generic, which pulled in linux-modules-
extra-4.15.0-32-generic. Therefore, no kernel code changes are required.
I also don't believe that it is a kernel packaging bug that caused
linux-image-generic and linux-modules-e
We were able to determine the cause for the loss of sound while working
together in IRC. When unattended-upgrades installed the new kernel, the
linux-image-generic and linux-modules-extra-4.15.0-32-generic packages
were removed shortly after:
Start-Date: 2018-08-15 06:18:14
Commandline: /usr/bin/
** Attachment added: "lsinitramfs-32.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1787251/+attachment/5176325/+files/lsinitramfs-32.txt
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** Attachment added: "lsinitramfs-31.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1787251/+attachment/5176324/+files/lsinitramfs-31.txt
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@Dean I'm still pretty stumped about this bug. Nothing in the changes
seem very relevant.
Could you attach the files resulting from the following two commands?
$ lsinitramfs -l /boot/initrd.img-4.15.0-31-generic > /tmp/lsinitramfs-31.txt
$ lsinitramfs -l /boot/initrd.img-4.15.0-32-generic > /tmp/
It's worth noting that both internal audio and USB audio devices don't
show. It's not just my headset that's missing - *no* audio devices are
present, even the onboard.
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https
Cosmic is not currently affected. It hasn't received the changes that
were introduced into the 4.15.0-32.35-generic kernel.
** Changed in: linux (Ubuntu)
Status: New => Invalid
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** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1787251
Title:
No sound devices after booting 4.15.0-32-generic
Status in li
The first set of attachments were gathered while running under the -32
kernel (which exhibits the bug). The second set of attachments were
gathered while running under the -31 kernel.
** Changed in: linux (Ubuntu)
Importance: Undecided => High
** Changed in: linux (Ubuntu)
Status: Confi
I see this change when comparing the CurrentDmesg.txt files:
-xhci_hcd :00:14.0: Host supports USB 3.0 SuperSpeed
The -32 kernel doesn't emit that message so maybe USB 3.0 isn't working
correctly and causes audio devices to not show up?
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Comparing the AlsaInfo.txt files shows that /proc/asound/* files do not
exist when running under the -32 kernel.
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https://bugs.launchpad.net/bugs/1787251
Title:
No sound de
apport information
** Tags added: apport-collected
** Description changed:
There is no sound and no sound devices appear present (either internal
or USB devices) after booting 4.15.0-32-generic. If I boot back into
-31, everything works normally.
ProblemType: Bug
DistroRelease: Ubun
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