https://bugs.freedesktop.org/show_bug.cgi?id=92827
Martin Peres changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|---
https://bugs.freedesktop.org/show_bug.cgi?id=92827
--- Comment #12 from Harry Wentland ---
Looks like the conversation steered away from audio.
Please use a new ticket or comment on existing tickets dealing with wrong
modes, such as https://bugs.freedesktop.org/show_bug.cgi?id=105046.
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You
https://bugs.freedesktop.org/show_bug.cgi?id=92827
--- Comment #11 from Maximilian Böhm ---
I feel your pain, I’m experiencing something similar here:
RX 580 → HDMI @ FullHD → Marantz NR1504 → [EDID-Fake-Plug]
RX 580 → DP @ UHD → Dell P2715Q.
Sometimes, when I turn the monitor off and on again,
https://bugs.freedesktop.org/show_bug.cgi?id=92827
--- Comment #10 from Michael Zapf ---
I now believe there is a general problem with amdgpu's new DC.
On another system, without an AV receiver in the chain, my display resolution
is reset to 1368x768 when I turn off the monitor and back on. Tha
https://bugs.freedesktop.org/show_bug.cgi?id=92827
--- Comment #9 from Christian König ---
Yeah, that is a problem I still have with my AV-setup as well.
In general the fault is caused by the AV receiver not correctly implementing
the EDID handling (the timing turning things on/off is usually no
https://bugs.freedesktop.org/show_bug.cgi?id=92827
--- Comment #8 from Alex Deucher ---
I suspect the receiver manufacturer never validated DPMS. Most consumer
electronic devices (media players, DVD, Bluray, cable boxes, etc.) don't
actually blank the display.
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--- Comment #7 from Michael Zapf ---
With 4.15 (and the kernel boot parameter!) I now managed to get audio output
via HDMI.
Splendid!
My configuration is
PC HDMI---> Pioneer AV receiver (vsx330) ---HDMI---> HP monitor (lp2475w)
But ther
https://bugs.freedesktop.org/show_bug.cgi?id=92827
--- Comment #6 from Maximilian Böhm ---
No, it will be merged with Linux 4.15 but you will still need an kernel
parameter:
https://www.phoronix.com/scan.php?page=news_item&px=AMDGPU-DC-Accepted
Until then, you have to compile yourself a patched k
https://bugs.freedesktop.org/show_bug.cgi?id=92827
--- Comment #5 from Michael Zapf ---
I just got kernel 4.14, but I still don't have any audio output via HDMI. Is
that supposed to work by now?
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--- Comment #4 from dwagner ---
JFYI: HDMI audio output works fine with amdgpu as present in current
https://cgit.freedesktop.org/~agd5f/linux/log/?h=amd-staging-drm-next
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--- Comment #3 from Maximilian Böhm ---
At least something to await for! Would be neat to put this info somewhere in a
non-dev press release. I fiddled many hours with this issue without knowing
anything about the state of HDMI audio on AMDGPU.
https://bugs.freedesktop.org/show_bug.cgi?id=92827
--- Comment #2 from Alex Deucher ---
Audio support requires DAL which is not upstream yet. E.g.,
https://cgit.freedesktop.org/~agd5f/linux/log/?h=drm-next-4.7-wip-dal
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--- Comment #1 from Maximilian Böhm ---
I can still confirm this bug with Linux 4.6.0. :(
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URL:
https://bugs.freedesktop.org/show_bug.cgi?id=92827
Bug ID: 92827
Summary: Tonga: No Sound over HDMI with connected AV receiver
Product: DRI
Version: XOrg git
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
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