[Bug 99041] New: HDMI Audio not working after fixing HDMI.

[Bug 99041] New: HDMI Audio not working after fixing HDMI.

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=99041

            Bug ID: 99041
           Summary: HDMI Audio not working after fixing HDMI.
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.0.3 4.0.4 4.1-rc1 4.1-rc2 4.1-rc3 4.1-rc4 4.1-rc5
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: v10lator@myway.de
        Regression: No

Alex Deucher told me to open a new bug report, so here I go.

Summary so far:
Kernel 4.0.2: HDMI image and audio working.
Kernel 4.0.3 and upward: No HDMI.
Kernel 4.0.4 with commit d5c3b64b9618214a5443c57c64511ab5fa599cec reverted:
HDMI image works, audio does not.
Kernel 4.0.4 with attachment 178001 from bug 98751: HDMI image works, audio
does not.
Kernel 4.0.4 with attachment 178001 from bug 98751 and
0f55db36d49d45b80eff0c0a2a498766016f458b reverted: HDMI image and audio
working.

Monitor in use: Samsung UE40H5090

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[Bug 99041] HDMI Audio not working after fixing HDMI.

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=99041

--- Comment #1 from Florent Le Coz <louiz@louiz.org> ---
The issue is still present on kernel 4.0.7.

Little precision, that may be useful to diagnose the problem:

- If I boot with that HDMI-connected screen turned off and then I turn it on
with my X session already fully started, it is not automatically detected (the
screen says “no signal”), but this used to work on older versions of linux
(can’t remember which one introduced this “regression”).
Next, if I manually configure it with that command:

xrandr --output DVI-0 --mode 1920x1080 --output DVI-1 --right-of DVI-0 --mode
1920x1080 --output HDMI-0 --right-of DVI-1 --mode 1920x1080

the image on the screen works, but not the sound.

- However, if I boot while that screen is already turned on (or if I turn it on
while still on the gdm login screen), it is automatically detected and both the
image AND the sound BOTH work immediately.

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[Bug 99041] HDMI Audio not working after fixing HDMI.

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=99041

--- Comment #2 from Thomas <v10lator@myway.de> ---
Alex Deucher: Any news on this? Currently I'm experiencing GPU stalls under
heavy load (gaming, so far tested with Left 4 Dead 2 and Distance, both games
need around 15 minutes of gameplay before screen freezes) and while I would
love to debug this I can't as I'm pinned on the patched kernel (4.0.4) so I
can't even test if a newer kernel would fix the issue (which came with a mesa
update).

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[Bug 99041] HDMI Audio not working after fixing HDMI.

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=99041

Maximilian Böhm <winlux@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |winlux@gmail.com

--- Comment #3 from Maximilian Böhm <winlux@gmail.com> ---
@Alex: Sadly, its not working, not at all. It's horribly broken since at least
Linux 4.0, 3.18 still works. I have a Radeon HD 7770. Just tested with Linux
4.3 RC7 and it's still broken.
Finally, I've found this report! It has driven me crazy over the last months.
Dozens of hours flowed into my HDMI experiments with different monitors, AV
Receivers, cables and boot parameters. Please fix this mess as soon as
possible!

There was this regression/patch that aimed to fix it but failed with it:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2d1c18bba15daf89d75ce475ecd2068f483aa12f

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