1)
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
A10
08/17/2015
uname -r
3.19.0-56-generic
2) No improvement. The screen is black. After i installed
3.19.0-56-generic it worked a while but started after som days
flickering on and off in to power save mode. I can't have
Public bug reported:
I have 3 screens including the laptop screen. The one connected to the
displayport is going in to power save mode and back in random
intervalls. The other screens don't care if the displayport one is
going back and forth to power save mode like it does when you unplug the
The workaround i used: http://xps13-9333.appspot.com/#background_noise
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https://bugs.launchpad.net/bugs/1315770
Title:
[Dell Precision M3800, Realtek ALC668, Black Headphone Out,
I tried this workaround and it fixed the problem. Still it have to be
fixed in the kernel.
** Attachment added: Alsa info kernel 3.16.0-30-generic with workaround
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1315770/+attachment/4318626/+files/alsa-info-kernel-3.16-with-workaround.txt
I have tested 3.16.0-30-generic and it did not work for me. Still same
background noise.
** Attachment added: Alsa info kernel 3.16.0-30-generic
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1315770/+attachment/4318595/+files/alsa-info-kernel-3.16.txt
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I still have this problem. See attachment.
** Attachment added: Alsa-info from http://www.alsa-project.org/alsa-info.sh;
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1315770/+attachment/4310471/+files/alsa-info.txt
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@Raymond does this fix the problem? the latest kernel update to ubuntu
14.04 did not fix the problem.
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https://bugs.launchpad.net/bugs/1315770
Title:
[Dell Precision M3800, Realtek
I have the same problem. Did you have any luck fixing this?
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https://bugs.launchpad.net/bugs/1315770
Title:
[Dell Precision M3800, Realtek ALC668, Black Headphone Out, Left]
Strong
