@PowerKiKi
That is very odd, mine lasts for hours and hours.....
I wouldn't think ubuntu and xbuntu would be that different with regard
to audio hardware mgmt, but one guess off the top of my head is that
before I found this thread I turned off power mgmt for snd_hda_intel to
try to get the headphone verb to be sticky. Obviously this will
increase power usage some, but I have not noticed any difference in
battery life. If you want to try it, here are the steps I tried (it can
be reversed easily if it doesn't help)...
1) Go to folder
/sys/module/snd_hda_intel/parameters/
2) modify 2 files
sudo gedit power_save
change 1 to 0
sudo gedit power_save_controller
change Y to N
3) If you still have an alsa-base file (Mike had me delete mine with his
patch), you can add these lines too...
sudo gedit /etc/modprobe.d/alsa-base.conf
Add
options snd-hda-intel power_save=0
options snd-hda-intel power_save_controller=N
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https://bugs.launchpad.net/bugs/1851518
Title:
[950SBE/951SBE, Realtek ALC298, Speaker, Internal] No sound on
internal speakers, very very quiet on headphones
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