[Bug 111588] Framebuffer corruption when a fb which is not being scanned out gets removed

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111588

--- Comment #2 from Michel Dänzer <michel at daenzer.net> ---
(In reply to Hans de Goede from comment #0)
> 5) Plymouth internally calls src/plugins/renderers/drm/plugin.c:
>    ply_renderer_buffer_free() this does:
>     drmModeRmFB(...);
>     munmap (buffer->map_address, buffer->map_size);
>     destroy_dumb_buffer_request.handle = buffer->handle;
>     drmIoctl (fd, DRM_IOCTL_MODE_DESTROY_DUMB, &destroy_dumb_buffer_request);
>    Followed by calling close() on the fd.
> 6) Plymouth exits
> 7) 5 and/or 6 cause the gdm framebuffer being all messed up, it looks like a
>    wrong pitch or tiling setting

Would be interesting if you could further narrow down which step (or even
sub-step of 5) exactly triggers the problem.

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