[Bug 222586] x11-drivers/xf86-video-intel: suspend/resume does not work with Option AccelMethod sna

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=222586

            Bug ID: 222586
           Summary: x11-drivers/xf86-video-intel: suspend/resume does not
                    work with Option AccelMethod sna
           Product: Base System
           Version: 11.1-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: vermaden at interia.pl

Hi,

the hardware is Lenovo ThinkPad T420s laptop with HD3000 Intel graphics (Intel
Core i5-2520M).

The suspend/resume works very well WITHOUT 'sna' option, but when You set 'sna'
as AccelMethod then suspend/resume does not work and on zzz(8) command the
system reboots.

# SNA IN /etc/X11/xorg.conf FILE

Section "Device"
  Identifier "Card0"
  Driver "intel"
  Option "DPMS"
  Option "AccelMethod" "sna"
EndSection

The reason to use 'sna' is that it is faster then without it (measured in
gtkperf).

Regards,
vermaden

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