[Bug 201497] New: [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[Bug 201497] New: [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

            Bug ID: 201497
           Summary: [amdgpu]: '*ERROR* No EDID read' is back in 4.19
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.19
          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: engywook@gmail.com
        Regression: No

Hey,

I have this EDID bug again, see
https://lists.freedesktop.org/archives/amd-gfx/2018-July/023923.html

018d82e5f02ef3583411bcaa4e00c69786f46f19 seems to have gotten back in through:
# first bad commit: [d98c71dadc2d0debdb80beb5a478baf1e6f98758] Merge
drm-upstream/drm-next into drm-misc-next

/ Daniel

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

--- Comment #1 from Nicholas Kazlauskas (nicholas.kazlauskas@amd.com) ---
The revert was only supposed to apply to 4.18 and below, there should be a
series of patches that fixes this for 4.19.

Please post an updated dmesg log for your 4.19 kernel.

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

--- Comment #2 from Daniel Andersson (engywook@gmail.com) ---
Created attachment 279133
  --> https://bugzilla.kernel.org/attachment.cgi?id=279133&action=edit
4.19 dmesg

dmesg attached

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

--- Comment #3 from Daniel Andersson (engywook@gmail.com) ---
Any progress on this issue?

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

--- Comment #4 from Daniel Andersson (engywook@gmail.com) ---
Created attachment 280261
  --> https://bugzilla.kernel.org/attachment.cgi?id=280261&action=edit
4.20 didn't fix this

Still an issue on 4.20

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

Ivan Molodetskikh (yalterz@gmail.com) changed:

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

--- Comment #5 from Ivan Molodetskikh (yalterz@gmail.com) ---
Created attachment 280619
  --> https://bugzilla.kernel.org/attachment.cgi?id=280619&action=edit
4.20 log

I'm hitting the same issue with one of my monitors (ASUS VG248QE, G-Sync
modded). I tried extracting EDID from kernel 4.18 and forcing it with
drm.edid_firmware as you can see in the log, but that doesn't seem to do
anything. My GPU is AMD RX 580.

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

--- Comment #6 from Daniel Andersson (engywook@gmail.com) ---
Created attachment 280701
  --> https://bugzilla.kernel.org/attachment.cgi?id=280701&action=edit
5.0-rc3 drm.debug=0x4

This is still an issue on 5.0-rc3.

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

Daniel Andersson (engywook@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Kernel Version|4.19                        |4.19 4.20 5.0-rc1 5.0-rc3
         Regression|No                          |Yes

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

Elliot Thomas (e.singularitycat@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |e.singularitycat@gmail.com

--- Comment #7 from Elliot Thomas (e.singularitycat@gmail.com) ---
Same here, RX580 and an ASUS PG278Q monitor, also with G-Sync support.
A different DisplayPort monitor (without G-Sync) worked perfectly.

I've noticed someone else with the same monitor having this issue over on the
freedesktop bug tracker: https://bugs.freedesktop.org/show_bug.cgi?id=108806

Interestingly, in more recent kernels, the affected monitor appears to flash
rapidly. I still see the EDID read fail in this case. I'll try and grab a dmesg
of this at some point.

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

--- Comment #8 from Elliot Thomas (e.singularitycat@gmail.com) ---
Created attachment 280777
  --> https://bugzilla.kernel.org/attachment.cgi?id=280777&action=edit
dmesg, amd-staging-drm-next-git (d0333a48e54fdcfdae5e378acd898a680967e939)

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

Sebastien Bernard (sbernard@nerim.net) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |sbernard@nerim.net

--- Comment #9 from Sebastien Bernard (sbernard@nerim.net) ---
Same here RX480 and ASUS PG278Q also.
My archlinux is stuck at 4.18.16 since october 2018.
Is there a workaround or someone that is looking at this bug ?
It's been broken from 4.19 up to 5.0.

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

Daniel Andersson (engywook@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Kernel Version|4.19 4.20 5.0-rc1 5.0-rc3   |4.19 4.20 5.0-rc1 5.0-rc3,
                   |                            |5.1-rc3

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

--- Comment #10 from Daniel Andersson (engywook@gmail.com) ---
Is this going to get fixed?

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

sebastian.larsson@protonmail.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |sebastian.larsson@protonmai
                   |                            |l.com

--- Comment #11 from sebastian.larsson@protonmail.com ---
Been struggling with this issue for quite some time
Is there any progress made?

ASUS ROG Swift PG278Q
R9 380X
5.4.0-rc1linux-5.4-rc1

[    2.776432] [drm:dc_link_detect [amdgpu]] *ERROR* No EDID read.

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

--- Comment #12 from Sebastien Bernard (sbernard@nerim.net) ---
I wonder if it's not a bad EDID from the monitor.
Anyway, that's a regression from 4.18.

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

chriskoch@goldmail.de changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |chriskoch@goldmail.de

--- Comment #13 from chriskoch@goldmail.de ---
Same here with Acer XB240H and AMD Vega 56: 
https://bugzilla.kernel.org/show_bug.cgi?id=205987

All Kernels >4.15 have this

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

--- Comment #14 from chriskoch@goldmail.de ---
*** Bug 205987 has been marked as a duplicate of this bug. ***

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

--- Comment #15 from Ivan Molodetskikh (yalterz@gmail.com) ---
I managed to force the kernel to use the EDID extracted via get-edid on kernel
4.18 thanks to https://bugzilla.kernel.org/show_bug.cgi?id=199799#c4 . The
trick was to add video=DP-4:e to the kernel parameters, so in my case the
complete addition looks like:

drm.edid_firmware=DP-4:edid/ASUS_VG248QE.bin video=DP-4:e

ASUS_VG248QE.bin was extracted with get-edid on kernel 4.18 and placed in
/usr/lib/firmware/edid/. With this in place, I can use my monitor fine on the
latest kernel (5.5.5).

Without this, I have the exact same issue on 5.5.5.

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

Mike Starr (starrtennis@gmail.com) changed:

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

--- Comment #16 from Mike Starr (starrtennis@gmail.com) ---
I have traced my personal version of this bug down to my Acer monitor and
Logitech gamepad. Both are detected, but only the monitor works. The error
spits out toward the end of dmesg about ten times in a row, twice. Thank you.

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

C0rn3j (spleefer90@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |spleefer90@gmail.com

--- Comment #17 from C0rn3j (spleefer90@gmail.com) ---
Created attachment 292811
  --> https://bugzilla.kernel.org/attachment.cgi?id=292811&action=edit
5.8 dmesg RX 580

I believe am hitting the same issue.

I have a DP monitor ACER XB270HAbprz and it is stuck in 640x480 on my RX 580.

This is on Linux 5.8.

On monitor replug this relevant line pops up:
[drm:dc_link_detect_helper [amdgpu]] *ERROR* No EDID read.

This same monitor with the same cable works great on GTX 970 and GTX 1080 Ti
under Nvidia 455.23.04.

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

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https://bugzilla.kernel.org/show_bug.cgi?id=201497

--- Comment #18 from chriskoch@goldmail.de ---
A short update:
In the meantime I am adding the modeline for my monitor manualy.
The automated solution is a 10-monitor.conf like in this thread:
https://archived.forum.manjaro.org/t/stuck-at-low-display-resolution/115976
This works until Kernel 5.8. With Kernel >= 5.9 my monitor doesn't accept the
modeline anymore.
Since this problem has been reported 2 years ago and nothing happened, I am
wondering if it will ever be fixed. Let me know how I can follow up/contribute
to fix this.

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

--- Comment #19 from xavier B (xavierb@gmail.com) ---
hi!

I had this issue for a longtime. And then, I recently got a new hdmi cable and
never had the error since!

(or at least symptoms of it: the pc having trouble to enable the display after
a warm reboot, and having to do a 'really' cold reboot by turning the pc off
for a few minutes to get it back.  I haven't been checking the logs extensively
since it now works...)

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

--- Comment #20 from Jay Tuckey (jay@tuckey.email) ---
Hi, I'm also running into this issue, using an RX Vega 64 with an Asus ROG
display. Let me know if there's any logs or testing that I can do to assist.

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

--- Comment #21 from Sebastien Bernard (sbernard@nerim.net) ---
The more I think about it,
the more it seems to be related only to this monitor.

I think the 4.19 kernel closed a bug and is rejectiting the EDID reported by
this screen.

If someone could validate this EDID is correct, it'll be of great help.

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

--- Comment #22 from Jay Tuckey (jay@tuckey.email) ---
@Sebastien that could well be the case. The screen works fine under windows,
but it could be that they are working around bad EDID data?

Is there any way I can validate if the EDID is bad?

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

--- Comment #23 from chriskoch@goldmail.de ---
Update:
We are now at Kernel 5.11 and this problem is still not fixed. I am stuck at
5.8 + manually entering the EDID on startup.
When 5.8 gets too outdated for me, I will buy a new monitor. I guess we cannot
expect any fix after almost 3 years.

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=201497

Rev (rev@pop.ms) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rev@pop.ms

--- Comment #24 from Rev (rev@pop.ms) ---
Issue is back in 5.17.9 (and 8), AMD 5600G, Mesa
22.2~git2205170600.fffafa~oibaf~f, so its 4 years now?

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

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Emre (erenoglu@gmail.com) changed:

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

--- Comment #25 from Emre (erenoglu@gmail.com) ---
I still see this error in 6.2.10-arch1-1. It happens for displays connected
through a USB-C hub:

[    5.230549] EDID block 0 is all zeroes
[    5.230552] [drm:dc_link_add_remote_sink [amdgpu]] *ERROR* Bad EDID,
status3!

A suspend / resume after system boots to login screen solves the issue. But it
comes back sometimes when display is suspended due to idle or other system
suspend/resume cycles.

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

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--- Comment #26 from Rev (rev@pop.ms) ---
My display is connected via HDMI and on 6.2.10 mainline this error is coming up
all 2 to 3 minutes in the logs. A relation to a display suspend is quite right
in my eyes, because it stops when the display is woken up and starts again on
display suspend.

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

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--- Comment #27 from Emre (erenoglu@gmail.com) ---
This makes my docked laptop almost unusable :( Once it suspends the displays,
there's no coming back. I'd need to undock, and hope it recovers. After
undocking, re-docking the USB-C hub does not help, external displays mostly
dont come back. Needs reboot :(

I wonder if there's a way to change severity/importance of this bug, I'm
worried that nobody looks at it as it's tagged 4.19 and 5.x while it exists in
the latest version of kernel. This effects usability big time.

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[Bug 201497] [amdgpu]: '*ERROR* No EDID read' is back in 4.19

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--- Comment #28 from Rev (rev@pop.ms) ---
I share that concern. Can the OP create a new report with a recent kernel and
updated logs, maybe with a link to this report? That would be wonderful!

By the way, my last comment, that the issue stops when the display is woken up
is wrong. Sometimes one display suspend is enough that the issue will repeat in
the logs, even if the display is "on" after that all the time. But this is
rather sporadic, sometimes the errors stop, sometimes they continue.

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