Samsung NP700Z3A

[lordxidious]

Audio does not work & youtube videos do not load. I am not sure how to make the audio work or get youtube working. Can someone assist me please.

[sebanc]

Could you attach a dmesg to this issue ? (run "dmesg > ~/Downloads/dmesg.txt" in crosh shell and attach dmesg.txt to this issue)

[lordxidious]

dmesg.txt

[lordxidious]

cat /proc/asound/card0/codec* | grep Codec Codec: Realtek ALC269VC Codec: Intel CougarPoint HDMI

[lordxidious]

Some new information I found out is that when connecting headphones audio will play, and when connecting it to an HDMI cable it will play audio from the monitor speakers, and ONLY when connected to HDMI can I select the internal speakers to make audio come from them, but if I restart and do not have it connected via HDMI then I can only use audio from the headphones port.

[sebanc]

Does adding "snd_hda_intel.index=0" to the kernel command line helps ?

If not, what is the output of: "cat /proc/asound/cards"

[lordxidious]

with your suggestion, the sound did not work. I know for 100% certainty these speakers work, and that it is not the laptop.

cat /proc/asound/cards 0 [PCH ]: HDA-Intel - HDA Intel PCH HDA Intel PCH at 0xc0800000 irq 34

[lordxidious]

sudo aplay -l List of PLAYBACK Hardware Devices card 0: PCH [HDA Intel PCH], device 0: ALC269VC Analog [ALC269VC Analog] Subdevices: 0/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0

[sebanc]

Thanks for the additional info.

This bug seems known since a long time but I did not find much solutions: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/697498

The best solution seems to be: https://askubuntu.com/questions/1234745/realtek-alc269vb-not-playing-sound-on-ubuntu-server-18-04

However, you cannot use hdajackretask from ChromeOS. What I suggest is: 1) Boot a linux distro and use hdajackretask to create a hda-jack-retask.fw according to the guidelines in the above post. 2) copy your hda-jack-retask.fw to your chromeos /lib/firmware folder (keep a backup of your hda-jack-retask.fw file somewhere) 3) Add "snd_hda_intel.patch=hda-jack-retask.fw" to the kernel command line and boot chromeos to see if it works 4) If it works, attach it here and I will add it to brunch

Alternatively, you can try booting with "module_blacklist=snd_hda_intel" added to the kernel command line which will activate a new sound driver called sof but I doubt it will work.

[lordxidious]

Thank you I should be able to do this next week when I get home from my long weekend. I will let you know how it goes.