[Bug 108037] New: Turning monitors off and on again makes the kernel panic and system freeze

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108037

            Bug ID: 108037
           Summary: Turning monitors off and on again makes the kernel
                    panic and system freeze
           Product: xorg
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/AMDgpu
          Assignee: xorg-driver-ati at lists.x.org
          Reporter: oyvinds at everdot.org
        QA Contact: xorg-team at lists.x.org

Created attachment 141707
  --> https://bugs.freedesktop.org/attachment.cgi?id=141707&action=edit
kernel panic messages

>have 3 displays connected with DisplayPort
>turn them off
>turn them on again later
>kernel crashes, RIP: 0010:dal_gpio_service_open+0x1c5/0x220 [amdgpu]
This was with 4.19.0-rc4 on Fedora 29. Graphics card RX 570. This is new, did
not use to be a problem before. Isn't a problem with 4.18.5. /var/log/messages
did have a backtrace which is attached. A small interesting detail from the log
was that the machine appeared to function normally until 2 minutes before
reboot which is what makes me sure it was turning the monitors on that made the
kernel panic.

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