[Bug 241685] graphics/drm-fbsd12.0-kmod in some cases makes X unusable

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=241685

            Bug ID: 241685
           Summary: graphics/drm-fbsd12.0-kmod in some cases makes X
                    unusable
           Product: Ports & Packages
           Version: Latest
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: x11 at FreeBSD.org
          Reporter: o.hushchenkov at gmail.com
          Assignee: x11 at FreeBSD.org
             Flags: maintainer-feedback?(x11 at FreeBSD.org)

I have Intel Haswell based laptop with drm-fbsd12.0-kmod on 12.1-STABLE
installed.

When I run Firefox, Xorg starts to consume 10% of CPU and system becomes
unresponsible to user input. Even if I close Firefox, system still in this
state until I reload the graphical session.

With old i915 and drm2 that still in the tree for 12.1-STABLE everything works
fine.

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