[Bug 107072] 4k hdmi monitor stays black on kaveri [regression]

[Bug 107072] 4k hdmi monitor stays black on kaveri [regression]

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https://bugs.freedesktop.org/show_bug.cgi?id=107072

            Bug ID: 107072
           Summary: 4k hdmi monitor stays black on kaveri [regression]
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: linuxhippy@gmail.com

After updating Fedora 28 on my Kaveri System (A8-7650K) with AMDGPU enabled
from 4.16.16 to 4.17.2 my 4K HDI display stays black (the FHD display connected
via HDMI continues to work as expected).

Please let me know what kind of information is required find the root cause.

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[Bug 107072] 4k hdmi monitor stays black on kaveri [regression]

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https://bugs.freedesktop.org/show_bug.cgi?id=107072

--- Comment #1 from Clemens Eisserer <linuxhippy@gmail.com> ---
correction: the FHD monitor is not connected via HDMI, but DVI

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[Bug 107072] 4k hdmi monitor stays black on kaveri [regression]

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https://bugs.freedesktop.org/show_bug.cgi?id=107072

--- Comment #2 from Clemens Eisserer <linuxhippy@gmail.com> ---
please find attached the dmesg output including some stack-traces.

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[Bug 107072] 4k hdmi monitor stays black on kaveri [regression]

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https://bugs.freedesktop.org/show_bug.cgi?id=107072

--- Comment #3 from Clemens Eisserer <linuxhippy@gmail.com> ---
Created attachment 140392
  --> https://bugs.freedesktop.org/attachment.cgi?id=140392&action=edit
dmesg-log + strack traces

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[Bug 107072] 4k hdmi monitor stays black on kaveri [regression]

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https://bugs.freedesktop.org/show_bug.cgi?id=107072

--- Comment #4 from Clemens Eisserer <linuxhippy@gmail.com> ---
I am using amdgpu after a rather severe performance regression was introduced 
with commit8b3a257851905ff444d981e52938cbf2b36ba830 which hits glamor for
certain workloads pretty hard. 

AMDGPU didn't suffer that much from this change:
https://bugs.freedesktop.org/show_bug.cgi?id=105171

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[Bug 107072] 4k hdmi monitor stays black on kaveri [regression]

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https://bugs.freedesktop.org/show_bug.cgi?id=107072

--- Comment #5 from Alex Deucher <alexdeucher@gmail.com> ---
What mode are you trying to run on your monitor?  Can you attach your xorg log
if you are using X?  Might be related to bug 106959.

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[Bug 107072] 4k hdmi monitor stays black on kaveri [regression]

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https://bugs.freedesktop.org/show_bug.cgi?id=107072

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |harry.wentland@amd.com

--- Comment #6 from Michel Dänzer <michel@daenzer.net> ---
Does amdgpu.dc=0 avoid the problem? DC will be disabled by default again for
Kaveri.

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[Bug 107072] 4k hdmi monitor stays black on kaveri [regression]

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https://bugs.freedesktop.org/show_bug.cgi?id=107072

--- Comment #7 from Clemens Eisserer <linuxhippy@gmail.com> ---
Created attachment 140472
  --> https://bugs.freedesktop.org/attachment.cgi?id=140472&action=edit
xorg log file with 4.17.3

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[Bug 107072] 4k hdmi monitor stays black on kaveri [regression]

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https://bugs.freedesktop.org/show_bug.cgi?id=107072

--- Comment #8 from Clemens Eisserer <linuxhippy@gmail.com> ---
amdgpu.dc=0 did the trick - behaviour is back to normal.

I guzess it is not related to  bug 106959. - kaveri doesn't support HDMI2, so
my refresh rate was 30Hz even with the old display stack.

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[Bug 107072] 4k hdmi monitor stays black on kaveri [regression]

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https://bugs.freedesktop.org/show_bug.cgi?id=107072

Pontus Gråskæg <graaskaeg.via.forwarder@neverbox.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |graaskaeg.via.forwarder@nev
                   |                            |erbox.com

--- Comment #9 from Pontus Gråskæg <graaskaeg.via.forwarder@neverbox.com> ---
Looking at your dmesg output, it looks like you might have hit this bug/issue:
bug 105880

"[dc] No support for LVDS or VGA connectors (Cannot find any crtc or sizes)"

AMD/Harry Wentland/Alex Deucher have commits in the mainline kernel to disable
the DC code by default for Bonaire, Kabini, Kaveri, and Mullins as certain
hardware interfaces are not supported in the DC code. Your cpu (from dmesg) is
an AMD A8-7650K Radeon R7, codename Kaveri.

The clue in dmesg output is the following errors:

[   14.186318] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector
ObjectID from Adapter Service for connector index:1! type 0 expected 3
[   14.186458] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector
ObjectID from Adapter Service for connector index:3! type 0 expected 3
[   14.186592] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector
ObjectID from Adapter Service for connector index:4! type 0 expected 3
[   14.186725] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector
ObjectID from Adapter Service for connector index:5! type 0 expected 3

You might try forcing amdgpu.dc=0 in the kernel command line to ensure you use
the old driver code.

graaskaeg

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[Bug 107072] 4k hdmi monitor stays black on kaveri [regression]

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https://bugs.freedesktop.org/show_bug.cgi?id=107072

--- Comment #10 from Alex Deucher <alexdeucher@gmail.com> ---
(In reply to Pontus Gråskæg from comment #9)
> Looking at your dmesg output, it looks like you might have hit this
> bug/issue: bug 105880
> 
> "[dc] No support for LVDS or VGA connectors (Cannot find any crtc or sizes)"
> 
> AMD/Harry Wentland/Alex Deucher have commits in the mainline kernel to
> disable the DC code by default for Bonaire, Kabini, Kaveri, and Mullins as
> certain hardware interfaces are not supported in the DC code. Your cpu (from
> dmesg) is an AMD A8-7650K Radeon R7, codename Kaveri.

Unless you are using VGA or LVDS connectors this is a different issues.  That
does not seem to be the case here (HDMI and DVI are supported in the DC code).

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[Bug 107072] 4k hdmi monitor stays black on kaveri [regression]

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https://bugs.freedesktop.org/show_bug.cgi?id=107072

--- Comment #11 from Alex Deucher <alexdeucher@gmail.com> ---
This is likely a duplicate of bug 106940.

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[Bug 107072] 4k hdmi monitor stays black on kaveri [regression]

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https://bugs.freedesktop.org/show_bug.cgi?id=107072

--- Comment #12 from Alex Deucher <alexdeucher@gmail.com> ---
Does reverting f0c0761b38ac30b04d4fed436ff10e894ec0e525 help?

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[Bug 107072] 4k hdmi monitor stays black on kaveri [regression]

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https://bugs.freedesktop.org/show_bug.cgi?id=107072

--- Comment #13 from Pontus Gråskæg <graaskaeg.via.forwarder@neverbox.com> ---
OK, I was misled by the errors in the dmesg log:

[   14.186318] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector
ObjectID from Adapter Service for connector index:1! type 0 expected 3
[   14.186458] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector
ObjectID from Adapter Service for connector index:3! type 0 expected 3
[   14.186592] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector
ObjectID from Adapter Service for connector index:4! type 0 expected 3
[   14.186725] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector
ObjectID from Adapter Service for connector index:5! type 0 expected 3

Apologies for the misconception.

graaskaeg

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[Bug 107072] 4k hdmi monitor stays black on kaveri [regression]

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https://bugs.freedesktop.org/show_bug.cgi?id=107072

Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #140472|text/x-log                  |text/plain
          mime type|                            |

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[Bug 107072] 4k hdmi monitor stays black on kaveri [regression]

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https://bugs.freedesktop.org/show_bug.cgi?id=107072

Martin Peres <martin.peres@free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |MOVED

--- Comment #14 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/436.

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