[Nouveau] [Bug 92307] G98/GM206: WARNING: ... at include/drm/drm_crtc.h:1577 drm_helper_choose_encoder_dpms+0x8a/0x90 [drm_kms_helper]()

[bugzilla-daemon at freedesktop.org]

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

--- 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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