FS#61366 - [linux] hdmi/displayport audio is a semitone lower when amdgpu driver is used

Attached to Project: Arch Linux
Opened by Thanos Apostolou (ThanosApostolou) - Saturday, 12 January 2019, 15:36 GMT
Last edited by Andreas Radke (AndyRTR) - Tuesday, 10 December 2019, 13:22 GMT
Task Type Bug Report
Category Packages: Core
Status Closed
Assigned To No-one
Architecture All
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:
I have enabled amdgpu kernel driver for southern islands GPUs with kernel parameters `radeon.si_support=0 amdgpu.si_support=1`. When amdgpu is used, then the hdmi/displayport audio is a semitone lower. Audio works properly with radeon kernel driver. I uploaded a video in order to demonstrate the problem https://youtu.be/URhOlW5zCp0

Additional info:
* linux: 4.20
* GPU: Radeon HD 7750
* inxi info: https://pastebin.com/LeipSnQj

Steps to reproduce:
1. enable amdgpu driver in a southern island gpu
2. play the same audio with both an hdmi/displayport cable and an audio jack cable in a device which supports both.

I'm guessing that this is an upstream bug, so I would like some help on where I can report this because I really don't know (maybe on freedesktop or maybe at the linux kernel)
This task depends upon

Closed by  Andreas Radke (AndyRTR)
Tuesday, 10 December 2019, 13:22 GMT
Reason for closing:  No response
Comment by loqs (loqs) - Saturday, 12 January 2019, 19:57 GMT
To report a bug upstream about the amdgpu module please see https://bugs.freedesktop.org/buglist.cgi?product=DRI&component=DRM%2FAMDgpu

Loading...