Nouveau - Oct 2014 - [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

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 at lists.freedesktop.org
          Reporter: adamw at happyassassin.net
        QA Contact: xorg-team at lists.x.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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--- Comment #1 from Adam Williamson <adamw at happyassassin.net> ---
Created attachment 108011
  --> https://bugs.freedesktop.org/attachment.cgi?id=108011&action=edit
journalctl from an affected boot with drm.debug=15

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--- Comment #2 from poma <pomidorabelisima at gmail.com> ---

Downstream reported case that resembles:
Nouveau display(DVI) broken - kernel 3.18
https://bugzilla.redhat.com/show_bug.cgi?id=1157191

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--- Comment #3 from Ilia Mirkin <imirkin at alum.mit.edu> ---
A user on IRC bisected a failure that resulted in PDISP getting very unhappy
to:

commit 1dce6264045cd23e9c07574ed0bb31c7dce9354f
Author: Roy Spliet <rspliet at eclipso.eu>
Date:   Fri Sep 12 18:00:13 2014 +0200

    drm/nv50/kms: Set VBLANK time in modeset script

    Solves blinking on reclocking memory. The value set is an underestimate,
but
    with non-reduced vblanking this should give us plenty of time

    Signed-off-by: Roy Spliet <rspliet at eclipso.eu>
    Signed-off-by: Ben Skeggs <bskeggs at redhat.com>

You should safely be able to revert this commit, see if that helps.

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--- Comment #4 from Adam Williamson <adamw at happyassassin.net> ---
Thanks for the pointer, I'll try and do a Fedora kernel build with the patch
reverted sometime soon.

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--- Comment #5 from poma <pomidorabelisima at gmail.com> ---
Created attachment 108425
  --> https://bugs.freedesktop.org/attachment.cgi?id=108425&action=edit
Revert "drm/nv50/kms: Set VBLANK time in modeset script" - git 1dce626


Ilia an Mr. user, thanks. :)

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--- Comment #6 from Zlatko Calusic <zcalusic at bitsync.net> ---
I have the same problem in 3.18-rc1, and can confirm that the issue is fixed if
I revert 1dce62640. Also GF 9600 GT and also dual monitor setup.

In my case, my primary display (DVI) would go blank right after switching to FB
and monitor would go to powersave. Reverting the mentioned commit fixes the
issue completely.

If there's an updated patch, I'm willing to test it before it goes
mainstream.

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Roy <rspliet at eclipso.eu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #108425|0                           |1
        is obsolete|                            |
             Status|NEW                         |ASSIGNED
           Assignee|nouveau at lists.freedesktop.o |rspliet at eclipso.eu
                   |rg                          |

--- Comment #7 from Roy <rspliet at eclipso.eu> ---
Created attachment 108457
  --> https://bugs.freedesktop.org/attachment.cgi?id=108457&action=edit
Fix vblank period setting on G94

Instead of reverting said patch, please test the attached fix.

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poma <pomidorabelisima at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         QA Contact|xorg-team at lists.x.org       |nouveau at
lists.freedesktop.o
                   |                            |rg

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--- Comment #24 from Roy <rspliet at eclipso.eu> ---
(In reply to poma from comment #23)
> Created attachment 109248 [details]
> dmesg-3.18.0-0.rc4.git0.1.fc22.x86_64-NV50
That's not surprising given this fix was not merged in that tree. Please be
patient, we'll get the fix in (or a different one if new data pops up)
before
3.18 gets released.

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--- Comment #25 from poma <pomidorabelisima at gmail.com> ---
Created attachment 109287
  --> https://bugs.freedesktop.org/attachment.cgi?id=109287&action=edit
dmesg-3.18.0-rc3.git-03dca70-drm-fixes+NV50


            == ALL TESTS PASSED =
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--- Comment #26 from poma <pomidorabelisima at gmail.com> ---

Combination also tested, works OK:
http://koji.fedoraproject.org/koji/buildinfo?buildID=592269
&
http://cgit.freedesktop.org/~darktama/nouveau/commit/?id=ae69cfb

$ modinfo nouveau -n
/lib/modules/3.18.0-0.rc4.git0.2.fc22.x86_64/updates/nouveau.ko

Thanks guys.

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Roy <rspliet at eclipso.eu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #27 from Roy <rspliet at eclipso.eu> ---
The fix for this bug was merged in kernel 3.18 RC5. Thank you all for your
feedback. If your problem persists with kernel 3.18 RC5 or newer, please
re-open this bug.

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J <rhbugzilla at vontersch.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |---

--- Comment #28 from J <rhbugzilla at vontersch.com> ---
I have a similar problem, but with a different card.  I believe my errors start
the same way as the original poster.

modinfo nouveau -n
/lib/modules/4.2.3-300.fc23.x86_64/kernel/drivers/gpu/drm/nouveau/nouveau.ko.xz

lspci -v | grep -i vga
01:00.0 VGA compatible controller: NVIDIA Corporation G92GLM [Quadro FX 2800M]
(rev a2) (prog-if 00 [VGA controller])

I'm using a laptop (dell m6500) and get a bunch of nouveau errors printed
when
I connect my 2nd display via the display port.  So long as I stay running in
init 3, the primary laptop LCD continues to function, but once I go init 5, X
appears to start, and then just hangs.

I've attached dmesg output for when I connect the display port, and when I
disconnect the display port.

Please let me know if I've posted to the wrong bug or can help in any way.

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--- Comment #29 from J <rhbugzilla at vontersch.com> ---
Created attachment 118804
  --> https://bugs.freedesktop.org/attachment.cgi?id=118804&action=edit
dmesg boot

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--- Comment #30 from J <rhbugzilla at vontersch.com> ---
Created attachment 118805
  --> https://bugs.freedesktop.org/attachment.cgi?id=118805&action=edit
dmesg.connected_display_port.4.2.3-300.fc23.x86_64

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--- Comment #31 from J <rhbugzilla at vontersch.com> ---
Created attachment 118806
  --> https://bugs.freedesktop.org/attachment.cgi?id=118806&action=edit
dmesg.disconnect_display_port.4.2.3-300.fc23.x86_64

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Ilia Mirkin <imirkin at alum.mit.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #32 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to J from comment #28)
> I have a similar problem, but with a different card.  I believe my errors
> start the same way as the original poster.
Similar problem = new bug.

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