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sakaki- / gentoo-on-rpi-64bit

Bootable 64-bit Gentoo image for the Raspberry Pi4B, 3B & 3B+, with Linux 5.4, OpenRC, Xfce4, VC4/V3D, camera and h/w codec support, weekly-autobuild binhost
GNU General Public License v3.0
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Audio distortion from ALL application sources #44

Closed aTosser closed 5 years ago

aTosser commented 6 years ago

I recently installed using the PINN installer and everything is working fantastic, with one exception. All audio regardless of souce (VLC, firefox, Kodi, etc...) is distorted. Not to the point of misunderstanding the content but annoying none the less.

Is this related to Sakaki's post here?

sakaki- commented 6 years ago

How are you outputting the audio (to HDMI or via the onboard headphone jack)? You may find things improved with the more recent 4.14 kernel; I am in the process of uploading a new image as I write this, and it should be live by tomorrow.

aTosser commented 6 years ago

Appologies, I intended to include HDMI in my comment. I have only a TV connected to the rPi3b.

sakaki- commented 6 years ago

You could try changing some of the settings in your /boot/config.txt file, and rebooting, to see if they help (see e.g. this listing for an explanation of the various keys). For example, you could try appending:

config_hdmi_boost=7

which will increase the level of the HDMI signal (in case it is a long or poor quality HDMI cable causing the issue). If that doesn't help, try

hdmi_force_edid_audio=1

(see above link for an explanation), and, if still no good, try appending:

hdmi_ignore_edid_audio=1

instead.

Does audio play back OK with the identical setup (cables, RPi3 board, TV) but using Raspbian?

aTosser commented 6 years ago

Yes raspbian all works fine with no modifications to config.txt. I would love to attempt the steps you suggested however I ran genup this morning now I am having boot issues. (Black screen) I don't know what to do to diagnose this so I will probably reinstall and try again.

sakaki- commented 6 years ago

The v1.2.1 is out now (newer kernel) so perhaps that will help.

sakaki- commented 5 years ago

Closing now - please re-open if this issue is still present with modern (>=1.4.0) releases of the image. Best, sakaki