https://bugs.freedesktop.org/show_bug.cgi?id=109338
Bug ID: 109338 Summary: hdmi/displayport audio is a semitone lower when amdgpu driver is used Product: DRI Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: thanosapostolou@outlook.com
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 kernel: 4.20 * GPU: Radeon HD 7750 * inxi info: https://pastebin.com/LeipSnQj