[Nouveau] [Bug 90871] NV30: Xfwm4 use_compositing - garbled display

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90871

--- Comment #36 from poma <pomidorabelisima at gmail.com> ---

ACPI power states test:
- Suspend to RAM aka S3
- Suspend to Disk aka S4

Xfwm4 flavours:
- "vulgaris" - built w/ --disable-epoxy --disable-xpresent
- "xpresent" - built w/ --disable-epoxy
- "glx"


          ACPI:  S3    S4
Xfwm:
vulgaris          +     -
xpresent          +     -
glx               +     +



Conclusion:
- S3 RESUME, no problemos
- S4 RESUME(THAW), for "vulgaris" and "xpresent",
  HW reset or Magic SysRq key sequence required.
  Not only display is garbled, but literally nothing you can do with it.
  BTW it does not matter whether compositing is on or off.

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