https://bugs.freedesktop.org/show_bug.cgi?id=91371
Bug ID: 91371
Summary: Tonga HDMI Audio none on TV working on monitor -
possible eld issue
Product: DRI
Version: DRI git
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: DRM/AMDgpu
Assignee: dri-devel at lists.freedesktop.org
Reporter: adf.lists at gmail.com
I have so far not managed to get any HDMI audio from my TV via R9 285.
I can get HDMI sound when connected to a monitor (with cpu load)
With other h/w this TV has recently been OK with a bit of messing around eg.
extra run of xrandr + cpu load for R9 270x. RS880 and rv770 worked without the
cpu load.
Added complication since getting a new mobo I sometimes get i2c edid read fails
on the TV - but then it's not always and the rv770 produced them and worked and
the tonga always works for sound with the TV in windows.
I noticed that for the TV the eld does not match what edid decode reports - it
only shows one sample rate and shows "Fl/Fr C" when it's only 2 channel. TBH I
don't know what eld said historically with different h/w.
edid-decode and eld for TV attached.
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