Please forgive my typos. I usually catch those...
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https://bugs.launchpad.net/bugs/1467190
Title:
No audio over DisplayPort MST
Status in linux package in Ubuntu:
I have an HP 8740w that has the same problem on Xenial LTS (16.04.3)
with the HWE (4.10) kernel, although I have also tested it on the 4.4
generic kernel with the same results.
The sound configuration shows only analog audio possibilities (5, IIRC),
whereas on my older HP (stolen) and my broken
@Ray-Ven I don't have the files lying around anymore. I will try to do it
again sometime. But until I get to it, you could really do it yourself if
you have a little experience with the terminal. I used git as per the
instructions on e.g. http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9/.
Using
@Totally King, is it possible you let me try your patched kernel with my
hardware? I'm not able to apply the patches and everything.
I'd like to see if my bugreport is a duplicate of yours.
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1310594
Thank you
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** Tags added: kernel-bug-exists-upstream latest-bios-2.24
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Title:
No audio over DisplayPort MST
Status in linux package in
Thanks! Indeed I updated to the latest BIOS version (no change). As you
can see (with my still identical hardware) the bug persists in ubuntu
16.04.1 and kernel 4.4 (4.4.0-57.58 to be exact). I also just tested the
latest mainline kernel release 4.9 (4.9.0-040900-generic) which did not
fix it!
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** Tags removed: kernel-bug-exists-upstream-4.1-rc8 latest-bios-2.24
** Tags added: kernel-bug-exists-upstream-4.9
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Title:
No audio
** Tags added: latest-bios-2.24
** Changed in: linux (Ubuntu)
Importance: Low => Medium
** Changed in: linux (Ubuntu)
Status: Incomplete => Triaged
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apport information
** Tags added: apport-collected xenial
** Description changed:
I have a Lenovo ThinkPad E540 with an Intel Haswell (4th Gen) HD
graphics controller connected to a OneLink Pro Dock. The Dock uses
DisplayPort (DP) 1.2 MST (multi stream transport) to provide both a DP
I will as soon as apport is fixed
(https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1451808)
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Title:
No audio over DisplayPort
Totally King, in order to review the hardware this patch applies to, please
execute the following command only once, as it will automatically gather
debugging information, in a terminal:
apport-collect 1467190
** Package changed: linux-lts-vivid (Ubuntu) => linux (Ubuntu)
** Changed in: linux
is kernel bisecting needed?
https://wiki.ubuntu.com/Kernel/KernelBisection
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https://bugs.launchpad.net/bugs/1467190
Title:
No audio over DisplayPort MST
Status
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.16.36-trusty/
is the latest working kernel
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.16.39
for example won't work
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Problem persists in yakkety (and all other ubuntu versions with kernels
higher than 3.16)
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https://bugs.launchpad.net/bugs/1467190
Title:
No audio over
** Tags added: cherry-pick
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Title:
No audio over DisplayPort MST
Status in linux-lts-vivid package in Ubuntu:
** Changed in: linux-lts-vivid (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux-lts-vivid (Ubuntu)
Status: Confirmed => Triaged
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