[Bug 77283] New: [intel+nvidia randr offloading] X segfaults with latest intel drivers

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=77283

          Priority: medium
            Bug ID: 77283
          Assignee: chris at chris-wilson.co.uk
           Summary: [intel+nvidia randr offloading] X segfaults with
                    latest intel drivers
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: pruzinat at gmail.com
          Hardware: Other
            Status: NEW
           Version: git
         Component: Driver/intel
           Product: xorg

Created attachment 97188
  --> https://bugs.freedesktop.org/attachment.cgi?id=97188&action=edit
xorg output w/ segfault & backtrace

Good day,

after updating to latest xf86-video-drivers, X segfaults when attempting to
offload Nvidia-blob->Intel via randr 1.4 (PRIME, optimus).

chipset: sandy bridge + nvidia 540M
arch: linux 3.14.0 (also linux-next)
xf86-video-intel: git
xserver 1.15.0
libdrm: 2.4.52
(x)randr: git
distro: gentoo mixed amd64 multilib
machine: Ideapad Z570

my .xinitrc:
xrandr --setprovideroutputsource "Intel" NVIDIA-0
xrandr --auto
exec awesome


After reverting back 'stable' xf86-video-intel, everything works as expected.
X crashes on second command from .xinitrc (^): xrandr --auto.
When I put "xrandr --listproviders > /home/$USER/xout" in between setprovider
command and auto, output was as expected (listing both nvidia and intel, with
correct capabilities).


If any more information is needed, I'm happy to provide it.
Have a nice day.

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