[Bug 200809] New: lightdm/Xorg freezes on startup everytime

[Bug 200809] New: lightdm/Xorg freezes on startup everytime

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=200809

            Bug ID: 200809
           Summary: lightdm/Xorg freezes on startup everytime
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.18.0-rc8
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: blocking
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: bucket.size@gmail.com
        Regression: No

Created attachment 277835
  --> https://bugzilla.kernel.org/attachment.cgi?id=277835&action=edit
dmesg when crash/freeze occurred

updated from stock 4.15 kernel to 4.18-rc8.
lightdm freezes on boot without boot param `nomodeset` everytime.
graphical startup is proper with boot param `nomodeset`.
not passing amdgpu.dc=1 as it has no effect.

-- system --
kernel: 4.18-rc8 from https://github.com/M-Bab/linux-kernel-amdgpu-binaries
cpu: AMD Ryzen 3 2200G with Radeon Vega Graphics
mainboard: Gigabyte Technology Co., Ltd. A320M-S2H/A320M-S2H-CF, BIOS F22
03/15/2018

-- dmesg log summary --
multiple stack traces, varying everytime, with common line as:
> [    3.197767] [drm:construct [amdgpu]] *ERROR* construct: Invalid Connector
> ObjectID from Adapter Service for connector index:2! type 0 expected 3

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[Bug 200809] lightdm/Xorg freezes on startup everytime with amdgpu driver enabled on 4.18.0-rc8

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=200809

Jaya Balan Aaron (bucket.size@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|lightdm/Xorg freezes on     |lightdm/Xorg freezes on
                   |startup everytime           |startup everytime with
                   |                            |amdgpu driver enabled on
                   |                            |4.18.0-rc8

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[Bug 200809] lightdm/Xorg freezes on startup everytime with amdgpu driver enabled on 4.18.0-rc8

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=200809

--- Comment #1 from Nicholas Kazlauskas (nicholas.kazlauskas@amd.com) ---
I'm unable to reproduce the issue you describe on the kernel you've linked. Do
you still see the problem occur on a stock kernel or amd-staging-drm-next?

Additional details on your setup would also be appreciated (Xorg log, monitor
details, dmesg log with drm.debug=4, etc). If you think this is a regression
then a bisection point could also help with debugging the issue, if any.

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[Bug 200809] lightdm/Xorg freezes on startup everytime with amdgpu driver enabled on 4.18.0-rc8

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=200809

--- Comment #2 from Jaya Balan Aaron (bucket.size@gmail.com) ---
Problem is with kernel 4.18.0-rc8 build from a 3rd party =>
https://github.com/M-Bab/linux-kernel-amdgpu-binaries.

Not sure if the amd-staging-drm-next is in it. It only says: "Kernel source
code of amd-staging with DAL and latest security patches". So I doubt it has
"amd-staging-drm-next".

Seems like 4.18.1 is latest stable, will compile that myself tonight and check
if i'm able to reproduce.

Will get back with more details.

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[Bug 200809] lightdm/Xorg freezes on startup everytime with amdgpu driver enabled on 4.18.0-rc8

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=200809

--- Comment #3 from Jaya Balan Aaron (bucket.size@gmail.com) ---
Might have committed a blunder while testing.

I have a "DELL ST2220L" connected on analog VGA and "Panasonic Tv" connected on
HDMI.

All the while primary might have been selected as the TV and the extended
desktop presented on VGA line, which I mistook as a hung lightdm/Xorg.

But also upgraded the kernel to latest from git.
Will revert back to 4.18.1 and test further.

Sorry if this lead to any waste of your time.

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[Bug 200809] lightdm/Xorg freezes on startup everytime with amdgpu driver enabled on 4.18.0-rc8

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=200809

Jaya Balan Aaron (bucket.size@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|blocking                    |low

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[Bug 200809] lightdm/Xorg freezes on startup everytime with amdgpu driver enabled on 4.18.0-rc8

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=200809

--- Comment #4 from Jaya Balan Aaron (bucket.size@gmail.com) ---
Unable to reproduce any error with HDMI display unplugged, primary display is
being selected as VGA device.

Kernel used: Problem is with kernel 4.18.0 build from a 3rd party =>
https://github.com/M-Bab/linux-kernel-amdgpu-binaries.

Still see a lot of error traces and [drm:construct [amdgpu]] *ERROR* construct:
Invalid Connector ObjectID from Adapter Service for connector index:2! type 0
expected 3

Setting priority as low.

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[Bug 200809] lightdm/Xorg freezes on startup everytime with amdgpu driver enabled on 4.18.0-rc8

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=200809

--- Comment #5 from Jaya Balan Aaron (bucket.size@gmail.com) ---
Created attachment 277921
  --> https://bugzilla.kernel.org/attachment.cgi?id=277921&action=edit
dmesg of 4.18.0 kernel with drm.debug=4

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[Bug 200809] various stack traces related to amdgpu on kernel 4.18.0-rc8+

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=200809

Jaya Balan Aaron (bucket.size@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|lightdm/Xorg freezes on     |various stack traces
                   |startup everytime with      |related to amdgpu on kernel
                   |amdgpu driver enabled on    |4.18.0-rc8+
                   |4.18.0-rc8                  |

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