[Wayland-bugs] [Bug 64183] Hotplugging external display with weston running leads to compositor lockup

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=64183

Kristian Høgsberg <krh at bitplanet.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #2 from Kristian Høgsberg <krh at bitplanet.net> ---
commit 95eb3a2eb470bd341ab078c7e48a28ffebc6dde1
Author: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira at intel.com>
Date:   Tue May 7 14:16:59 2013 +0300

    compositor-drm: Don't page flip before a mode is set

    The function drm_output_start_repaint_loop() unconditionally issues a
    page flip, even if the crtc for that output has not been enabled yet.
    That causes the page flip to fail, and drm_output_repaint() is never
    called.

    Solve this by bypassing the initial page flip if the output needs a
    mode set.

    This has the caveat of affecting latency predictability for that first
    frame and when a "driver" mode fullscreen surface causes a mode set.
    However, on both cases the mode set would take an unpredictable amount
    of time anyway.

    https://bugs.freedesktop.org/show_bug.cgi?id=63812
    https://bugs.freedesktop.org/show_bug.cgi?id=64183

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