[Bug 90976] New: GM204 (NV124) black screen on modesetting - bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ

From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: [Bug 90976] New: GM204 (NV124) black screen on modesetting
Date: Sun, 14 Jun 2015 16:56:26 +0000	[thread overview]
Message-ID: <bug-90976-8800@http.bugs.freedesktop.org/> (raw)

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https://bugs.freedesktop.org/show_bug.cgi?id=90976

            Bug ID: 90976
           Summary: GM204 (NV124) black screen on modesetting
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: high
         Component: Driver/nouveau
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
          Reporter: roucaries.bastien+bugs-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org

Created attachment 116492
  --> https://bugs.freedesktop.org/attachment.cgi?id=116492&action=edit
dmesg

Modesetting does not work.

The card is linked to sony bravia TV through HDMI

I achieved to get a trace by blacklisting nouveau then manually load it.
error log here (full dmesg joinded):
[  143.521000] nouveau E[     DRM] Pointer to flat panel table invalid
[  143.525351] nouveau W[     DRM] unknown connector type 70
[  143.525387] nouveau W[     DRM] failed to create encoder 1/8/0: -19
[  143.525388] nouveau W[     DRM] Unknown-1 has no encoders, removing
[  143.525407] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[  143.525407] [drm] Driver supports precise vblank timestamp query.
[  143.525424] nouveau E[     DRM] failed to initialise sync subsystem, -38
[  143.819264] nouveau  [     DRM] allocated 1920x1080 fb: 0x60000, bo
ffff8802135d3000

What could I do ?

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