[Bug 85160] New: [NV94] INVALID_STATE error, X fails to start on GeForce 9600 GT with dual monitors, kernels 3.18.0-0.rc0.git8.2.fc22.1 onwards - bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ

From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: [Bug 85160] New: [NV94] INVALID_STATE error, X fails to start on GeForce 9600 GT with dual monitors, kernels 3.18.0-0.rc0.git8.2.fc22.1 onwards
Date: Fri, 17 Oct 2014 23:13:05 +0000	[thread overview]
Message-ID: <bug-85160-8800@http.bugs.freedesktop.org/> (raw)

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https://bugs.freedesktop.org/show_bug.cgi?id=85160

            Bug ID: 85160
           Summary: [NV94] INVALID_STATE error, X fails to start on
                    GeForce 9600 GT with dual monitors, kernels
                    3.18.0-0.rc0.git8.2.fc22.1 onwards
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
          Reporter: adamw-cfjF3rc+CpsYNetmKr+vY16hYfS7NtTn@public.gmane.org
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org

Running Fedora 21 with kernels from
https://alt.fedoraproject.org/pub/alt/rawhide-kernel-nodebug/ (tracking 3.18
development).

I have kernel-3.18.0-0.rc0.git1.2.fc22.1.x86_64 ,
kernel-3.18.0-0.rc0.git8.2.fc22.1.x86_64 and
kernel-3.18.0-0.rc0.git9.2.fc22.1.x86_64 installed .
kernel-3.18.0-0.rc0.git1.2.fc22.1.x86_64 boots fine on my system, the other two
do not.

On git1 I get boot framebuffer output on both heads, then X starts properly. On
git8 and git9, I get boot framebuffer only on one head, then both screens go
into power saving mode when X starts, or one keeps cycling power-saving /
non-power-saving but never comes up.

The logs have a bunch of stuff, but it seems to kick off with an error:

nouveau E[   PDISP][0000:01:00.0] INVALID_STATE [UNK0B] chid 1 mthd 0x0080 data
0x00000000

I'll attach drm.debug=15 logs. Hardware is:

01:00.0 VGA compatible controller [0300]: NVIDIA Corporation G94 [GeForce 9600
GT] [10de:0622] (rev a1)

Ben Skeggs has one of the same cards, somewhere in his pile. May only be
reproducible with dual displays, I didn't try with just one yet.

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