[Bug 59903] [RS880] Xorg.0.log: flip queue failed: Device or resource busy

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=59903

--- Comment #8 from Michel Dänzer <michel at daenzer.net> ---
(In reply to comment #6)
> * with "echo 2 > /sys/module/drm/parameters/debug" nothing special in dmesg

Hmm, so maybe the EBUSY error is coming from this code in
drm_mode_page_flip_ioctl():

        if (crtc->fb == NULL) {
                /* The framebuffer is currently unbound, presumably
                 * due to a hotplug event, that userspace has not
                 * yet discovered.
                 */
                ret = -EBUSY;
                goto out;
        }


What does xrandr --current say when the problem occurs? After that, does
running xrandr without arguments make any difference?

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