Nouveau - Jul 2017 - [Bug 101782] New: GTX1050TI (GP107 / NV137): HDMI output not working

https://bugs.freedesktop.org/show_bug.cgi?id=101782

            Bug ID: 101782
           Summary: GTX1050TI (GP107 / NV137): HDMI output not working
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: carlo at caione.org
        QA Contact: xorg-team at lists.x.org

Created attachment 132664
  --> https://bugs.freedesktop.org/attachment.cgi?id=132664&action=edit
log_attaching_detaching

The same hardware as for https://bugs.freedesktop.org/show_bug.cgi?id=101764

When the HDMI cable is connected there is no signal for the external monitor
and the internal panel keeps working as expected.

The journal when the cable is attached and then detached is attached to this
ticket. What's interesting to me is:

gdm-Xorg-:0[551]: (EE) NOUVEAU(G0): failed to set mode: No space left on device

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--- Comment #1 from Carlo Caione <carlo at caione.org> ---
Created attachment 132665
  --> https://bugs.freedesktop.org/attachment.cgi?id=132665&action=edit
log_full_attaching_detaching

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--- Comment #2 from Carlo Caione <carlo at caione.org> ---
Created attachment 132666
  --> https://bugs.freedesktop.org/attachment.cgi?id=132666&action=edit
xrand_before

xrandr output before attaching the HDMI cable

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--- Comment #3 from Carlo Caione <carlo at caione.org> ---
Created attachment 132667
  --> https://bugs.freedesktop.org/attachment.cgi?id=132667&action=edit
xrandr_after

xrandr output after attaching the HDMI cable

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--- Comment #4 from Carlo Caione <carlo at caione.org> ---
Apparently the problem is:

(EE) NOUVEAU(G0): Error creating GPU channel: -19
(EE) NOUVEAU(G0): Error initialising acceleration.  Falling back to NoAccel

in our kernel we are booting with 'noaccel=1' that is disabling
acceleration.
But nouveau can't do the prime offload without accel since it uses the copy
engine to copy the framebuffer out.

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Carlo Caione <carlo at caione.org> changed:

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

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Rhys Kidd <rhyskidd at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://bugs.freedesktop.or
                   |                            |g/show_bug.cgi?id=100228

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