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 Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: winlux@gmail.com
Created attachment 119417 --> https://bugs.freedesktop.org/attachment.cgi?id=119417&action=edit cat /proc/asound/card1/eld#0.0
I'm using the new amdgpu driver on Linux 4.2 and 4.3 RC7 with my new Radeon R9 380. I want to use my 5.1 receiver to get audio over HDMI, it works just fine under Windows 8.1. Under Manjaro Linux, I have configured a standard FullHD output on HDMI with 60 Hz – with my former Radeon HD 7770 using radeonsi this was the rule to get audio (don't get me started on broken HDMI audio on radeonsi. With Linux 4.0+ until now, I needed to use the 3.18 kernel to *not* see only "unplugged" outputs in PulseAudio. See bug 90777.). In fortunate distinction to radeonsi on Linux 4.0+, PulseAudio shows 2.0, 5.1 and 7.1 output over HDMI as plugged in and available. But I don't get any output. No HDMI audio output on Tonga using amdgpu on Linux 4.2 and 4.3 RC7.
https://bugs.freedesktop.org/show_bug.cgi?id=92827
--- Comment #1 from Maximilian Böhm winlux@gmail.com --- I can still confirm this bug with Linux 4.6.0. :(
https://bugs.freedesktop.org/show_bug.cgi?id=92827
--- Comment #2 from Alex Deucher alexdeucher@gmail.com --- 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
https://bugs.freedesktop.org/show_bug.cgi?id=92827
--- Comment #3 from Maximilian Böhm winlux@gmail.com --- 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. There must be countless frustrated users, even more when you think of the Ubuntu 16.04 shift away from fglrx.
https://bugs.freedesktop.org/show_bug.cgi?id=92827
--- Comment #4 from dwagner jb5sgc1n.nya@20mm.eu --- JFYI: HDMI audio output works fine with amdgpu as present in current https://cgit.freedesktop.org/~agd5f/linux/log/?h=amd-staging-drm-next
https://bugs.freedesktop.org/show_bug.cgi?id=92827
--- Comment #5 from Michael Zapf forums09@mizapf.de --- I just got kernel 4.14, but I still don't have any audio output via HDMI. Is that supposed to work by now?
https://bugs.freedesktop.org/show_bug.cgi?id=92827
--- Comment #6 from Maximilian Böhm mabo@elbmurf.de --- 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 kernel. For Arch-based distros you can use the AUR linux-amd-staging-drm-next-git. Phoronix provides pre-compiled packages for Ubuntu.
https://bugs.freedesktop.org/show_bug.cgi?id=92827
--- Comment #7 from Michael Zapf forums09@mizapf.de --- 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 there is one bad effect now: When I turn off the monitor during runtime, or if the monitor enters power-save state, and it is turned on again, the screen resolution is reset to a maximum of 1368x768 (before: 1920x1200), which messes up the desktop.
The reason is that when the monitor is turned off, this seems to be sensed as a change in the HMDI connection, and the EDID data is now coming from the AV receiver.
dmesg says:
[ 82.689994] [drm] VSX-330: [Block 0] [ 82.689995] [drm] VSX-330: [Block 1] [ 82.689997] [drm] dc_link_detect: manufacturer_id = 2F41, product_id = 1027, serial_number = 1010101, manufacture_week = 0, manufacture_year = 25, display_name = VSX-330, speaker_flag = 79, audio_mode_count = 8 [ 82.689998] [drm] dc_link_detect: mode number = 0, format_code = 1, channel_count = 1, sample_rate = 127, sample_size = 7 [ 82.689999] [drm] dc_link_detect: mode number = 1, format_code = 1, channel_count = 7, sample_rate = 127, sample_size = 7 [ 82.690000] [drm] dc_link_detect: mode number = 2, format_code = 2, channel_count = 5, sample_rate = 7, sample_size = 80 [ 82.690000] [drm] dc_link_detect: mode number = 3, format_code = 7, channel_count = 6, sample_rate = 6, sample_size = 192 [ 82.690001] [drm] dc_link_detect: mode number = 4, format_code = 9, channel_count = 1, sample_rate = 127, sample_size = 0 [ 82.690002] [drm] dc_link_detect: mode number = 5, format_code = 10, channel_count = 7, sample_rate = 6, sample_size = 0 [ 82.690002] [drm] dc_link_detect: mode number = 6, format_code = 11, channel_count = 7, sample_rate = 126, sample_size = 1 [ 82.690003] [drm] dc_link_detect: mode number = 7, format_code = 12, channel_count = 7, sample_rate = 126, sample_size = 0 [ 82.691002] Raw EDID: [ 82.691003] c8 01 00 00 06 00 00 00 20 00 00 00 02 00 00 00 [ 82.691003] 80 07 00 00 b0 04 00 00 01 00 0a 00 fc 05 e0 01 [ 82.691004] e0 04 00 00 00 00 00 00 01 00 01 00 00 00 02 00 [ 82.691004] 00 00 00 00 00 0a 00 00 01 00 00 00 70 00 00 00 [ 82.691004] 08 00 02 00 fc 05 e0 01 12 00 07 00 fc 05 e0 01 [ 82.691005] 9b 01 00 00 04 00 00 00 20 00 00 00 01 00 00 00 [ 82.691005] 04 00 00 00 01 00 0a 00 fd 05 e0 01 e0 04 00 00 [ 82.691006] 00 00 00 00 1e 00 1e 00 00 00 02 00 00 00 00 00 [ 82.691007] amdgpu 0000:01:00.0: HDMI-A-2: EDID invalid.
Note that the monitor is typically labeled as HDMI-A-1.
The screen configuration in KDE lists 1368x768 as the maximum resolution now.
I managed to restore the old resolution either by rebooting, or by turning off the AV receiver, then turning it back on. Still, the desktop is messed up.
https://bugs.freedesktop.org/show_bug.cgi?id=92827
--- Comment #8 from Alex Deucher alexdeucher@gmail.com --- 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.
https://bugs.freedesktop.org/show_bug.cgi?id=92827
--- Comment #9 from Christian König ckoenig.leichtzumerken@gmail.com --- 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 not correctly validated/implemented).
We could do something like adding an option to re-query the EDID x seconds after an hot plug event and compare if it's changed.
https://bugs.freedesktop.org/show_bug.cgi?id=92827
--- Comment #10 from Michael Zapf forums09@mizapf.de --- 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. That's a really mess (not only my desktop after that). I have to reboot to get the full resolution again; killing X or unplugging the monitor does not restore it.
Seems as if I have to turn off DC again and wait for a fix. <grmpf>
I have this issue in my office (RX460) and on my second PC (RX580), reproduceably, all running openSUSE Tumbleweed, 4.15.1.
https://bugs.freedesktop.org/show_bug.cgi?id=92827
--- Comment #11 from Maximilian Böhm mabo@elbmurf.de --- 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, my desktop resolution is reduced to 2048x1536 (this is not even 16:9) and I have no other option than rebooting to get 3840x2160 again. This was new coming with the DC patches but does not happen every time I turn the monitor off and on again, rather rarely, but is endlessly annoying.
https://bugs.freedesktop.org/show_bug.cgi?id=92827
--- Comment #12 from Harry Wentland harry.wentland@amd.com --- 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.
https://bugs.freedesktop.org/show_bug.cgi?id=92827
Martin Peres martin.peres@free.fr changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |MOVED
--- Comment #13 from Martin Peres martin.peres@free.fr --- -- GitLab Migration Automatic Message --
This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.
You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/58.
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