Nouveau - Oct 2015 - [Bug 92307] New: NV50: WARNING: ... at include/drm/drm_crtc.h:1577 drm_helper_choose_encoder_dpms+0x8a/0x90 [drm_kms_helper]()

https://bugs.freedesktop.org/show_bug.cgi?id=92307

            Bug ID: 92307
           Summary: NV50: WARNING: ... at include/drm/drm_crtc.h:1577
                    drm_helper_choose_encoder_dpms+0x8a/0x90
                    [drm_kms_helper]()
           Product: xorg
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: pomidorabelisima at gmail.com
        QA Contact: xorg-team at lists.x.org

S3 RESUME:

WARNING: ... at include/drm/drm_crtc.h:1577
drm_helper_choose_encoder_dpms+0x8a/0x90 [drm_kms_helper]()
Call Trace:
 [<ffffffff81417339>] dump_stack+0x4b/0x72
 [<ffffffff810a8c12>] warn_slowpath_common+0x82/0xc0
 [<ffffffff810a8d5a>] warn_slowpath_null+0x1a/0x20
 [<ffffffffa01542ca>] drm_helper_choose_encoder_dpms+0x8a/0x90
[drm_kms_helper]
 [<ffffffffa01543bb>] drm_helper_connector_dpms+0x4b/0x100
[drm_kms_helper]
 [<ffffffffa0288beb>] nouveau_connector_hotplug+0x5b/0xb0 [nouveau]
 [<ffffffffa01e7a77>] nvif_notify_work+0x27/0xa0 [nouveau]
 [<ffffffff810c7470>] process_one_work+0x230/0x6a0
 [<ffffffff810c73d9>] ? process_one_work+0x199/0x6a0
 [<ffffffff810c792e>] worker_thread+0x4e/0x450
 [<ffffffff810c78e0>] ? process_one_work+0x6a0/0x6a0
 [<ffffffff810c78e0>] ? process_one_work+0x6a0/0x6a0
 [<ffffffff810ce981>] kthread+0x101/0x120
 [<ffffffff81103d79>] ? trace_hardirqs_on_caller+0x129/0x1b0
 [<ffffffff810ce880>] ? kthread_create_on_node+0x250/0x250
 [<ffffffff8185fbef>] ret_from_fork+0x3f/0x70
 [<ffffffff810ce880>] ? kthread_create_on_node+0x250/0x250
---[ end trace cf287771813cb2d1 ]---

WARNING: ... at include/drm/drm_crtc.h:1577
drm_helper_choose_crtc_dpms+0x93/0xa0 [drm_kms_helper]()
Call Trace:
 [<ffffffff81417339>] dump_stack+0x4b/0x72
 [<ffffffff810a8c12>] warn_slowpath_common+0x82/0xc0
 [<ffffffff810a8d5a>] warn_slowpath_null+0x1a/0x20
 [<ffffffffa0154363>] drm_helper_choose_crtc_dpms+0x93/0xa0
[drm_kms_helper]
 [<ffffffffa028c240>] ? nv50_display_crtc_get+0x20/0x20 [nouveau]
 [<ffffffffa0154429>] drm_helper_connector_dpms+0xb9/0x100
[drm_kms_helper]
 [<ffffffffa0288beb>] nouveau_connector_hotplug+0x5b/0xb0 [nouveau]
 [<ffffffffa01e7a77>] nvif_notify_work+0x27/0xa0 [nouveau]
 [<ffffffff810c7470>] process_one_work+0x230/0x6a0
 [<ffffffff810c73d9>] ? process_one_work+0x199/0x6a0
 [<ffffffff810c792e>] worker_thread+0x4e/0x450
 [<ffffffff810c78e0>] ? process_one_work+0x6a0/0x6a0
 [<ffffffff810c78e0>] ? process_one_work+0x6a0/0x6a0
 [<ffffffff810ce981>] kthread+0x101/0x120
 [<ffffffff81103d79>] ? trace_hardirqs_on_caller+0x129/0x1b0
 [<ffffffff810ce880>] ? kthread_create_on_node+0x250/0x250
 [<ffffffff8185fbef>] ret_from_fork+0x3f/0x70
 [<ffffffff810ce880>] ? kthread_create_on_node+0x250/0x250
---[ end trace cf287771813cb2d2 ]---

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--- Comment #1 from poma <pomidorabelisima at gmail.com> ---
Created attachment 118693
  --> https://bugs.freedesktop.org/attachment.cgi?id=118693&action=edit
dmesg 4.3.0-0.rc4.git0.1.fc24.x86_64+debug NV50

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--- Comment #2 from poma <pomidorabelisima at gmail.com> ---
Tested with the latest
http://cgit.freedesktop.org/~darktama/nouveau/commit/?id=794a63c
warnings are still occurring.

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--- Comment #3 from Stefan Huehner <stefan at huehner.org> ---
Seeing same here when 'switching off' and 'on' again hdmi
display connected to
a gm206

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--- Comment #4 from poma <pomidorabelisima at gmail.com> ---
(In reply to Stefan Huehner from comment #3)
> Seeing same here when 'switching off' and 'on' again hdmi
display connected
> to a gm206

Goes - both, S3 RESUME and disable/enable the output will induce these
warnings, ...

$ xrandr --output DVI-I-1 --off ; xrandr --auto
$ xrandr --display :0
...
DVI-I-1 connected 1920x1080+0+0 ...
...

... with one behavioural exception - after xrandr OFF/ON routine, the mouse
cursor is visible and motile, but the rest of the screen is as blanked.

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poma <pomidorabelisima at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|NV50: WARNING: ... at       |G98: WARNING: ... at
                   |include/drm/drm_crtc.h:1577 |include/drm/drm_crtc.h:1577
                   |drm_helper_choose_encoder_d |drm_helper_choose_encoder_d
                   |pms+0x8a/0x90               |pms+0x8a/0x90
                   |[drm_kms_helper]()          |[drm_kms_helper]()

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--- Comment #5 from poma <pomidorabelisima at gmail.com> ---
Created attachment 118863
  --> https://bugs.freedesktop.org/attachment.cgi?id=118863&action=edit
dmesg 4.3.0-0.rc5.git0.1.fc24.x86_64+debug & nouveau git on G98

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poma <pomidorabelisima at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|G98: WARNING: ... at        |G98/GM206: WARNING: ... at
                   |include/drm/drm_crtc.h:1577 |include/drm/drm_crtc.h:1577
                   |drm_helper_choose_encoder_d |drm_helper_choose_encoder_d
                   |pms+0x8a/0x90               |pms+0x8a/0x90
                   |[drm_kms_helper]()          |[drm_kms_helper]()/

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poma <pomidorabelisima at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|G98/GM206: WARNING: ... at  |G98/GM206: WARNING: ... at
                   |include/drm/drm_crtc.h:1577 |include/drm/drm_crtc.h:1577
                   |drm_helper_choose_encoder_d |drm_helper_choose_encoder_d
                   |pms+0x8a/0x90               |pms+0x8a/0x90
                   |[drm_kms_helper]()/         |[drm_kms_helper]()

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--- Comment #6 from poma <pomidorabelisima at gmail.com> ---

$ dmesg | egrep WARNING\|kworker
[  131.880586] WARNING: CPU: 2 PID: 4017 at include/drm/drm_crtc.h:1577
drm_helper_choose_encoder_dpms+0x8a/0x90 [drm_kms_helper]()
[  131.880889] CPU: 2 PID: 4017 Comm: kworker/2:4 Tainted: G           OE  
4.3.0-0.rc6.git2.1.fc24.x86_64 #1
[  131.881373] WARNING: CPU: 2 PID: 4017 at include/drm/drm_crtc.h:1577
drm_helper_choose_crtc_dpms+0x93/0xa0 [drm_kms_helper]()
[  131.881589] CPU: 2 PID: 4017 Comm: kworker/2:4 Tainted: G        W  OE  
4.3.0-0.rc6.git2.1.fc24.x86_64 #1
[  132.578315] WARNING: CPU: 2 PID: 23 at include/drm/drm_crtc.h:1577
drm_helper_choose_encoder_dpms+0x8a/0x90 [drm_kms_helper]()
[  132.578383] CPU: 2 PID: 23 Comm: kworker/2:0 Tainted: G        W  OE  
4.3.0-0.rc6.git2.1.fc24.x86_64 #1
[  132.578517] WARNING: CPU: 2 PID: 23 at include/drm/drm_crtc.h:1577
drm_helper_choose_crtc_dpms+0x93/0xa0 [drm_kms_helper]()
[  132.578567] CPU: 2 PID: 23 Comm: kworker/2:0 Tainted: G        W  OE  
4.3.0-0.rc6.git2.1.fc24.x86_64 #1


$ modinfo -n nouveau
/lib/modules/4.3.0-0.rc6.git2.1.fc24.x86_64/updates/nouveau.ko


$ git log -1
commit 6b471ec900ba70fa72fddeb144fcf9ce59e80dfb
Author: Roy Spliet <rspliet at eclipso.eu>
Date:   Wed Sep 30 00:23:52 2015 +0100

    clk/g84: Enable reclocking for GDDR3 G94-G200

    Your milage may vary, as it's only been tested on a single G94 and one
G96.

    Signed-off-by: Roy Spliet <rspliet at eclipso.eu>
    Tested-by: Pierre Moreau <pierre.morrow at free.fr>
    Signed-off-by: Ben Skeggs <bskeggs at redhat.com>

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--- Comment #7 from poma <pomidorabelisima at gmail.com> ---

FTR procedure:

$ uname -r
4.3.0-0.rc6.git2.1.fc24.x86_64

$ git clone git://people.freedesktop.org/~darktama/nouveau
$ cd nouveau/drm/
$ make
$ su

# cp nouveau/nouveau.ko /usr/lib/modules/$(uname -r)/updates/
# depmod
# dracut --kver $(uname -r) -f
# systemctl reboot

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--- Comment #8 from poma <pomidorabelisima at gmail.com> ---
(In reply to poma from comment #7)
> FTR procedure:
> 
> $ uname -r
> 4.3.0-0.rc6.git2.1.fc24.x86_64
> 
> $ git clone git://people.freedesktop.org/~darktama/nouveau
> $ cd nouveau/drm/
> $ make
> $ su
> 
> # cp nouveau/nouveau.ko /usr/lib/modules/$(uname -r)/updates/
> # depmod
> # dracut --kver $(uname -r) -f
> # systemctl reboot

Update to commit f787ef9

nouveau/drm/nouveau/nouveau_drm.c:935:24: error: ‘drm_vblank_no_hw_counter’
undeclared here (not in a function)
  .get_vblank_counter = drm_vblank_no_hw_counter,
                        ^

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--- Comment #9 from Don O <japhack at yahoo.com> ---
Created attachment 119620
  --> https://bugs.freedesktop.org/attachment.cgi?id=119620&action=edit
changes to make nouveau stop creating trace blowups

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--- Comment #10 from Don O <japhack at yahoo.com> ---
(In reply to Don O from comment #9)
> Created attachment 119620 [details]
> changes to make nouveau stop creating trace blowups

I was having the same problems as others with traces being generated by simply
turning off the monitor. I found a solution by googling and realized that the
radeon driver was having the same problem and the solution was simple (attached
patch).

It has fixed the trace problem and the monitor turns back on and off properly.

I had this problem when I tried the 4.1.12 kernel also, so this is not just
strictly 4.3 or whatever.


Note: to the comment 8 and non compile,
it needs a couple of updated *.h files in /usr/include/drm
to compile properly (doesn't fix the trace problem though)

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--- Comment #11 from Don O <japhack at yahoo.com> ---
(In reply to Don O from comment #10)
> (In reply to Don O from comment #9)
> > Created attachment 119620 [details]
> > changes to make nouveau stop creating trace blowups
> 
> 
> I was having the same problems as others with traces being generated by
> simply turning off the monitor. I found a solution by googling and realized
> that the radeon driver was having the same problem and the solution was
> simple (attached patch).
> 
> It has fixed the trace problem and the monitor turns back on and off
> properly.
> 
> I had this problem when I tried the 4.1.12 kernel also, so this is not just
> strictly 4.3 or whatever.
> 
> 
> Note: to the comment 8 and non compile,
> it needs a couple of updated *.h files in /usr/include/drm
> to compile properly (doesn't fix the trace problem though)
Sorry about this mess, I'm not used to bugzilla.
The patch is reversed (doh) but the nouveau_connector.c file needs
the drm_mode_lock_all, and unlock all wrapped around the call to
nvif_notify_init

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--- Comment #12 from poma <pomidorabelisima at gmail.com> ---
(In reply to poma from comment #8)
> (In reply to poma from comment #7)
> > FTR procedure:
> > 
> > $ uname -r
> > 4.3.0-0.rc6.git2.1.fc24.x86_64
> > 
> > $ git clone git://people.freedesktop.org/~darktama/nouveau
> > $ cd nouveau/drm/
> > $ make
> > $ su
> > 
> > # cp nouveau/nouveau.ko /usr/lib/modules/$(uname -r)/updates/
> > # depmod
> > # dracut --kver $(uname -r) -f
> > # systemctl reboot
> 
> 
> Update to commit f787ef9
> 
> nouveau/drm/nouveau/nouveau_drm.c:935:24: error: ‘drm_vblank_no_hw_counter’
> undeclared here (not in a function)
>   .get_vblank_counter = drm_vblank_no_hw_counter,
>                         ^
It was the current compilation breakage within ~darktama/nouveau, not related
to the actual bug.

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--- Comment #13 from poma <pomidorabelisima at gmail.com> ---
Created attachment 119664
  --> https://bugs.freedesktop.org/attachment.cgi?id=119664&action=edit
dmesg 4.4.0-0.rc0.git9.1.fc24.x86_64 connector_hotplug nvif_notify


- nouveau.ko built of:
http://cgit.freedesktop.org/~darktama/nouveau
git://people.freedesktop.org/~darktama/nouveau

- ending with:
$ git log -1
commit ad38b5e72b3acb40b820954f04293a0161e33845
Author: Ben Skeggs <bskeggs at redhat.com>
Date:   Wed Nov 11 13:06:10 2015 +1000

    WIPce/gk104: attempt at better handling of LAUNCHERR

    Very rough, no idea how correct it is at this point, but it prevents
    getteximage-depth from piglit from hanging the GPU.

    Signed-off-by: Ben Skeggs <bskeggs at redhat.com>

- patched with:
$ git diff
diff --git a/drm/nouveau/nouveau_connector.c b/drm/nouveau/nouveau_connector.c
index 36ec8f3..d6afbb0 100644
--- a/drm/nouveau/nouveau_connector.c
+++ b/drm/nouveau/nouveau_connector.c
@@ -1274,6 +1274,7 @@ nouveau_connector_create(struct drm_device *dev, int
index)
                break;
        }

+       drm_modeset_lock_all(dev);
        ret = nvif_notify_init(&disp->disp, nouveau_connector_hotplug,
true,
                               NV04_DISP_NTFY_CONN,
                               &(struct nvif_notify_conn_req_v0) {
@@ -1283,6 +1284,7 @@ nouveau_connector_create(struct drm_device *dev, int
index)
                               sizeof(struct nvif_notify_conn_req_v0),
                               sizeof(struct nvif_notify_conn_rep_v0),
                               &nv_connector->hpd);
+       drm_modeset_unlock_all(dev);
        if (ret)
                connector->polled = DRM_CONNECTOR_POLL_CONNECT;
        else

Ref.
"drm/radeon: Sprinkle drm_modeset_lock_all to appease locking checks"
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/drivers/gpu/drm/radeon/radeon_device.c?id=6adaed5

Conclusion:
In this regard, it does not change anything - with or without ~darktama/nouveau
update, with or without patch.

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--- Comment #14 from Don O <japhack at yahoo.com> ---
(In reply to poma from comment #13)
>...
> Conclusion:
> In this regard, it does not change anything - with or without
> ~darktama/nouveau update, with or without patch.
Do you have nouveau set up as built-in or module?

If you have it built-in then creating a module won't have any effect as the
system will never use that.

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--- Comment #15 from poma <pomidorabelisima at gmail.com> ---

$ grep -i nouveau /boot/config-4.4.0-0.rc0.git9.1.fc24.x86_64
CONFIG_DRM_NOUVEAU=m
CONFIG_NOUVEAU_DEBUG=5
CONFIG_NOUVEAU_DEBUG_DEFAULT=3
CONFIG_DRM_NOUVEAU_BACKLIGHT=y


Furthermore, this one is actually loaded:

# lsinitrd --kver 4.4.0-0.rc0.git9.1.fc24.x86_64 | grep nouveau
... usr/lib/modules/4.4.0-0.rc0.git9.1.fc24.x86_64/updates/nouveau.ko

therefore "dracut --kver $(uname -r) -f" build&install step.

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--- Comment #16 from poma <pomidorabelisima at gmail.com> ---

Tested kernels:
4.4.0-0.rc3.git0.1.fc24.x86_64+debug
&
4.4.0-0.rc3.git0.1.fc24.x86_64+debug with updated nouveau from
http://cgit.freedesktop.org/~darktama/nouveau - up to commit 115ed46

- dmesg:
[  242.712518] WARNING: CPU: 2 PID: 2742 at include/drm/drm_crtc.h:1565
drm_helper_choose_encoder_dpms+0x8a/0x90 [drm_kms_helper]()
[  242.713194] WARNING: CPU: 2 PID: 2742 at include/drm/drm_crtc.h:1565
drm_helper_choose_crtc_dpms+0x93/0xa0 [drm_kms_helper]()
[  243.410428] WARNING: CPU: 2 PID: 2742 at include/drm/drm_crtc.h:1565
drm_helper_choose_encoder_dpms+0x8a/0x90 [drm_kms_helper]()
[  243.411084] WARNING: CPU: 2 PID: 2742 at include/drm/drm_crtc.h:1565
drm_helper_choose_crtc_dpms+0x93/0xa0 [drm_kms_helper]()
[  429.026360] WARNING: CPU: 2 PID: 2742 at include/drm/drm_crtc.h:1565
drm_helper_choose_encoder_dpms+0x8a/0x90 [drm_kms_helper]()
[  429.027127] WARNING: CPU: 2 PID: 2742 at include/drm/drm_crtc.h:1565
drm_helper_choose_crtc_dpms+0x93/0xa0 [drm_kms_helper]()
[  429.725127] WARNING: CPU: 2 PID: 308 at include/drm/drm_crtc.h:1565
drm_helper_choose_encoder_dpms+0x8a/0x90 [drm_kms_helper]()
[  429.725408] WARNING: CPU: 2 PID: 308 at include/drm/drm_crtc.h:1565
drm_helper_choose_crtc_dpms+0x93/0xa0 [drm_kms_helper]()
[  605.195250] WARNING: CPU: 2 PID: 50 at include/drm/drm_crtc.h:1565
drm_helper_choose_encoder_dpms+0x8a/0x90 [drm_kms_helper]()
[  605.195586] WARNING: CPU: 2 PID: 50 at include/drm/drm_crtc.h:1565
drm_helper_choose_crtc_dpms+0x93/0xa0 [drm_kms_helper]()
[  605.893962] WARNING: CPU: 2 PID: 50 at include/drm/drm_crtc.h:1565
drm_helper_choose_encoder_dpms+0x8a/0x90 [drm_kms_helper]()
[  605.894735] WARNING: CPU: 2 PID: 50 at include/drm/drm_crtc.h:1565
drm_helper_choose_crtc_dpms+0x93/0xa0 [drm_kms_helper]()
[  650.065838] WARNING: CPU: 2 PID: 50 at include/drm/drm_crtc.h:1565
drm_helper_choose_encoder_dpms+0x8a/0x90 [drm_kms_helper]()
[  650.066627] WARNING: CPU: 2 PID: 50 at include/drm/drm_crtc.h:1565
drm_helper_choose_crtc_dpms+0x93/0xa0 [drm_kms_helper]()
[  650.764764] WARNING: CPU: 2 PID: 50 at include/drm/drm_crtc.h:1565
drm_helper_choose_encoder_dpms+0x8a/0x90 [drm_kms_helper]()
[  650.765550] WARNING: CPU: 2 PID: 50 at include/drm/drm_crtc.h:1565
drm_helper_choose_crtc_dpms+0x93/0xa0 [drm_kms_helper]()
[ 1258.081495] WARNING: CPU: 2 PID: 1879 at include/drm/drm_crtc.h:1565
drm_helper_choose_encoder_dpms+0x8a/0x90 [drm_kms_helper]()
[ 1258.082210] WARNING: CPU: 2 PID: 1879 at include/drm/drm_crtc.h:1565
drm_helper_choose_crtc_dpms+0x93/0xa0 [drm_kms_helper]()
[ 1258.780213] WARNING: CPU: 2 PID: 1879 at include/drm/drm_crtc.h:1565
drm_helper_choose_encoder_dpms+0x8a/0x90 [drm_kms_helper]()
[ 1258.780934] WARNING: CPU: 2 PID: 1879 at include/drm/drm_crtc.h:1565
drm_helper_choose_crtc_dpms+0x93/0xa0 [drm_kms_helper]()
...

Although warnings are still here,
during S3 RESUME connected output/display -IS- enabled.

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--- Comment #17 from poma <pomidorabelisima at gmail.com> ---

However with the xrandr routine:
xrandr --output DVI-I-1 --off ; xrandr --auto

is still problematic,
the mouse cursor is visible and motile, but the rest of the screen is as
blanked.

Moreover, through the further testing I found a component that is causing the
problem.
Is it the only variable in equation, dunno.

Therefore,
Xfwm4 XPresent compositor -and- GLX compositor -are problematic-
in xrandr routine - of course when they are used.

What -is NOT- problematic:
- Xfwm4 XRender compositor
- DRI 3


Related to this problem, and not only
https://bugzilla.xfce.org/show_bug.cgi?id=12339

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--- Comment #18 from poma <pomidorabelisima at gmail.com> ---

Stefan, what DE/compositor are you running?

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--- Comment #19 from Stefan Huehner <stefan at huehner.org> ---
No compositor just old fvwm2 as window manager. For this quick test i did
either just startx or via lightdm.

Note: was just quick test using blob for now and not nouveau mainly on that
box.

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--- Comment #20 from poma <pomidorabelisima at gmail.com> ---

nouveau & fvwm-2.6.5-10.fc23.x86_64,
except ever-present warnings, no problemos for both - S3 RESUME and xrandr.

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--- Comment #21 from poma <pomidorabelisima at gmail.com> ---

Valid for all three Xfwm4 compositors:

w/
Driver "nouveau"

Option "AccelMethod" "none"
and/or
Option "NoAccel" "off"

"... xrandr --auto" zaps Xserver


w/
Driver "modesetting"

"... xrandr --auto" works OK

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--- Comment #22 from poma <pomidorabelisima at gmail.com> ---
(In reply to poma from comment #21)
> Valid for all three Xfwm4 compositors:
> 
> w/
> Driver "nouveau"
> 
> Option "AccelMethod" "none"
> and/or
> Option "NoAccel" "off"
> 
> "... xrandr --auto" zaps Xserver
> 
> 
> w/
> Driver "modesetting"
> 
> "... xrandr --auto" works OK

Nevertheless,
SEGV catches xfdesktop and warnings are.

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--- Comment #23 from poma <pomidorabelisima at gmail.com> ---

For comparison - valid for both:

Driver "nouveau"
and
Driver "modesetting"

"... xrandr --auto"  produces

kernel: gnome-shell[2161]: segfault at fffffffd2fd160c0 ip 00007f1bab442f05 sp
00007ffd1ec98490 error 5 in libmutter.so.0.0.0[7f1bab3b3000+fd000]
kernel: gnome-shell[6058]: segfault at fffffffdfcc2e1c0 ip 00007f36c4e25f05 sp
00007fffb16775a0 error 5 in libmutter.so.0.0.0[7f36c4d96000+fd000]

thereby terms Xorg.

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--- Comment #24 from poma <pomidorabelisima at gmail.com> ---

Material for:
Product:     xorg
Component:     App/xrandr
?

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--- Comment #25 from poma <pomidorabelisima at gmail.com> ---

There are also problemos - "xrandr --rotate ..." produced,
related to GL compositor.

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--- Comment #26 from poma <pomidorabelisima at gmail.com> ---

When engaged, Xfwm4 GL compositor with XPresent VSync
$ XFWM4_USE_PRESENT=1 xfwm4
xrandr related problemos(--off/--auto/--rotate) start with this particular
commita
"enable dri3 support without glamor"
http://cgit.freedesktop.org/nouveau/xf86-video-nouveau/commit/?id=241e728

With the former commita, which works OK
http://cgit.freedesktop.org/nouveau/xf86-video-nouveau/commit/?id=762b22f
while "xrandr-ing", there is no warning in the kernel ring buffer,
whatsoever.
Still, SEGV catches xfdesktop.

Yet with commita 762b22f, while S3 RESUME, warnings are still occurring,
very persistent, aye. :)


In contrast, when engaged, Xfwm4 GL compositor with default VSync,
xrandr related problemos(--off/--auto/--rotate) are "all the way",
at least I have tested from xf86-video-nouveau-1.0.3 up to the latest,
xf86-video-nouveau-1.0.12.
So there is no love there at all.

I wonder whether this problemo is comparable to one occurs with the
clutter/mutter/gnome-shell
https://bugzilla.gnome.org/buglist.cgi?quicksearch=meta_monitor_manager_xrandr_handle_xevent
https://bugzilla.redhat.com/buglist.cgi?quicksearch=meta_monitor_manager_xrandr_handle_xevent

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--- Comment #27 from Zlatko Calusic <zcalusic at bitsync.net> ---
Have the same issue on G94, 4.4.0-rc5+ kernel. Tried the patch from comment
#13, didn't help.

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poma <pomidorabelisima at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|G98/GM206: WARNING: ... at  |G98/G94: WARNING: ... at
                   |include/drm/drm_crtc.h:1577 |include/drm/drm_crtc.h:1577
                   |drm_helper_choose_encoder_d |drm_helper_choose_encoder_d
                   |pms+0x8a/0x90               |pms+0x8a/0x90
                   |[drm_kms_helper]()          |[drm_kms_helper]()

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poma <pomidorabelisima at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|G98/G94: WARNING: ... at    |G98/G94/GK106: WARNING: ...
                   |include/drm/drm_crtc.h:1577 |at
                   |drm_helper_choose_encoder_d |include/drm/drm_crtc.h:1577
                   |pms+0x8a/0x90               |drm_helper_choose_encoder_d
                   |[drm_kms_helper]()          |pms+0x8a/0x90
                   |                            |[drm_kms_helper]()
           See Also|                            |https://bugs.freedesktop.or
                   |                            |g/show_bug.cgi?id=93733

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poma <pomidorabelisima at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://bugs.freedesktop.or
                   |                            |g/show_bug.cgi?id=93634
            Summary|G98/G94/GK106: WARNING: ... |G98/G94/GK106/GM204:
                   |at                          |WARNING: ... at
                   |include/drm/drm_crtc.h:1577 |include/drm/drm_crtc.h:1577
                   |drm_helper_choose_encoder_d |drm_helper_choose_encoder_d
                   |pms+0x8a/0x90               |pms+0x8a/0x90
                   |[drm_kms_helper]()          |[drm_kms_helper]()/

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--- Comment #28 from poma <pomidorabelisima at gmail.com> ---

Commit:
"drm/nouveau/kms: take mode_config mutex in connector hotplug path"
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/drivers/gpu/drm/nouveau/nouveau_connector.c?id=0a882cad
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/patch/drivers/gpu/drm/nouveau/nouveau_connector.c?id=0a882cad

solves only WARNING(s),
everything else is equally broken - "xrandr-ing" with GL(X)
compositing.

Tested with 4.5.0-0.rc0.git3.1.fc24.x86_64

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poma <pomidorabelisima at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|G98/G94/GK106/GM204:        |G98/G94/GK106/GM204/GF119:
                   |WARNING: ... at             |WARNING: ... at
                   |include/drm/drm_crtc.h:1577 |include/drm/drm_crtc.h:1577
                   |drm_helper_choose_encoder_d |drm_helper_choose_encoder_d
                   |pms+0x8a/0x90               |pms+0x8a/0x90
                   |[drm_kms_helper]()/         |[drm_kms_helper]()
           See Also|                            |https://bugzilla.redhat.com
                   |                            |/show_bug.cgi?id=1299175

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poma <pomidorabelisima at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |i.am.inuyasha at gmail.com

--- Comment #29 from poma <pomidorabelisima at gmail.com> ---
*** Bug 93733 has been marked as a duplicate of this bug. ***

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poma <pomidorabelisima at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |kevin_Steffensen at hotmail.co
                   |                            |m

--- Comment #30 from poma <pomidorabelisima at gmail.com> ---
*** Bug 93634 has been marked as a duplicate of this bug. ***

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--- Comment #31 from poma <pomidorabelisima at gmail.com> ---

While GL(X) compositing,

not only that DRI3 introduces cca. 1 sec lag,
i.e. slowdown as reported here:
https://bugs.freedesktop.org/show_bug.cgi?id=92271

but it breaks overall "xrandr --rotate ..." routine.

Tested with Latest n' Greatest on Rawhide - Xfce, GNOME and KDE.

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--- Comment #32 from poma <pomidorabelisima at gmail.com> ---
(In reply to poma from comment #31)
> While GL(X) compositing,
> 
> not only that DRI3 introduces cca. 1 sec lag,
> i.e. slowdown as reported here:
> https://bugs.freedesktop.org/show_bug.cgi?id=92271
> 
> but it breaks overall "xrandr --rotate ..." routine.
> 
> Tested with Latest n' Greatest on Rawhide - Xfce, GNOME and KDE.

In this sense "overall" means, "xrandr-ial" rotation can
easily produce
unusable session screen,
and the only thing left is to zap the xserver and re-log.

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--- Comment #33 from poma <pomidorabelisima at gmail.com> ---
(In reply to poma from comment #17)
> However with the xrandr routine:
> xrandr --output DVI-I-1 --off ; xrandr --auto
> 
> is still problematic,
...

G98: GL(X) compositing - XRandR DPMS trouble
https://bugs.freedesktop.org/show_bug.cgi?id=93795

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poma <pomidorabelisima at gmail.com> changed:

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

--- Comment #34 from poma <pomidorabelisima at gmail.com> ---

This report was originally referred to the problem that has since been
resolved,
"WARNING: ... at include/drm/drm_crtc.h:1577"

If your GPU comprises the same problem, related to GL(X) compositing and XRandR
DPMS,
you can join here:
https://bugs.freedesktop.org/show_bug.cgi?id=93795

The same goes with GL(X) compositing and XRandR rotation problem,
you can join here:
https://bugs.freedesktop.org/show_bug.cgi?id=92271


Thank you for attention folks,
and thanks Ben for "WARNINGs" relief.

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