[Bug 187581] New: Nouveau GPU Lock Up with 2D Acceleration

[Bug 187581] New: Nouveau GPU Lock Up with 2D Acceleration

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=187581

            Bug ID: 187581
           Summary: Nouveau GPU Lock Up with 2D Acceleration
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.8.6
          Hardware: PPC-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: jeffbai@aosc.xyz
        Regression: No

Happened to get 2 FX4500's for my PowerMac G5 11,2, but it didn't seem willing
to cooperate.

Without nouveau.noaccel=1 in the kernel parameter, the system starts fine, but
X would only work with fbdev driver - as GPU locks up at early stages of
startup (dmesg attached above).

With nouveau.noaccel=1 in the kernel parameter, system starts fine without the
lock up message, but X will **still** only work with fbdev - using nouveau with
result in a looped output of the following message:

"nouveau 0000:0a:00.0: DRM: 0x13DC: Parsing digital output script table"

And the system is inaccessible, this also appears to hang any `systemctl stop
lightdm` operation and even the `reboot` command itself.

---------------------------

Xorg-Server version: 1.18.4
Kernel version: 4.8.6
xf86-video-nouveau version: 1.0.12

---------------------------

A similar bug report is filed here due to uncertainty on the origin of the
issue.

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[Bug 187581] Nouveau GPU Lock Up with 2D Acceleration

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=187581

--- Comment #1 from Mingcong Bai <jeffbai@aosc.xyz> ---
Created attachment 244351
  --> https://bugzilla.kernel.org/attachment.cgi?id=244351&action=edit
dmesg without nouveau.noaccel=1

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[Bug 187581] Nouveau GPU Lock Up with 2D Acceleration

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=187581

--- Comment #2 from Mingcong Bai <jeffbai@aosc.xyz> ---
Created attachment 244361
  --> https://bugzilla.kernel.org/attachment.cgi?id=244361&action=edit
dmesg with nouveau.noaccel=1

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[Bug 187581] Nouveau GPU Lock Up with 2D Acceleration

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=187581

--- Comment #3 from Mingcong Bai <jeffbai@aosc.xyz> ---
Created attachment 244371
  --> https://bugzilla.kernel.org/attachment.cgi?id=244371&action=edit
Kernel config (4.8.6)

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[Bug 187581] Nouveau GPU Lock Up with 2D Acceleration

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=187581

--- Comment #4 from Mingcong Bai <jeffbai@aosc.xyz> ---
Kernel binary can be obtained here:
https://repo.aosc.io/os-ppc64/os3-dpkg/l/linux-kernel-4.8.6_4.8.6-0_ppc64.deb

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[Bug 187581] Nouveau GPU Lock Up with 2D Acceleration

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=187581

--- Comment #5 from Mingcong Bai <jeffbai@aosc.xyz> ---
Original Freedesktop.org bug report:
https://bugs.freedesktop.org/show_bug.cgi?id=98712

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