Yes the kernel graphics driver provides the path to the monitor audio
device so that might be it. Although history makes me suspect PulseAudio
more.
** Tags added: amdgpu
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I just tested it on a laptop with intel graphics, and sound and playback is
perfectly normal on 60Hz when playing through the HDMI (playing on the
television). Same cable, same television - only connected to my laptop instead.
This makes me wonder whether this could be an issue in the kernel
I don't know if the speed is exactly doubled, by but changing the output
definitely changes the playback speed of any media.
I tried making a video to show it: https://youtu.be/hlqw_ijdxOE
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I don't think it's quite doubling. Usually "chipmunks sound" bugs are a
mismatch between 44.1kHz and 48.0kHz somewhere in the system.
The refresh rate of the monitor should be completely irrelevant to any
audio.
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However, audio going through USB on the X1 ThinkVision (called "Analog Output -
X1") is now playing correctly in Wayland with both monitors at 60Hz.
When selecting the television output "HDMI / DisplayPort - Vega 20 HDMI Audio
[Radeon VII]" on Wayland with 60Hz on both monitors, the playback
This does not fix the issue. Playback is still double and high pitched in
Wayland with both monitors at 60Hz.
In Xorg I can still only select 30Hz as the maximum on the television.
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Please try editing /etc/pulse/daemon.conf and change:
; default-sample-rate=44100
to
default-sample-rate=48000
and then reboot.
** Package changed: xorg (Ubuntu) => pulseaudio (Ubuntu)
** Tags added: focal
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Also because Wayland allows the television to be at 60Hz, whenever I
login (after boot) and have it in mirror mode, the sound is therefore
too fast by default.
I cannot change it, since the HDMI port is the first port on the GPU and
the DisplayPort port is the second. This means it by default