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Re: kern/49722: drm: radeon: mpv stopped working

The following reply was made to PR kern/49722; it has been noted by GNATS.

From: Leonardo Taccari <>
Subject: Re: kern/49722: drm: radeon: mpv stopped working
Date: Thu, 05 Mar 2015 18:54:10 +0100

 Hello Thomas,
 Thomas Klausner writes:
 > The recent fixes for DRM and radeon made the artifacts vanish for me, bu=
 > on the other multimedia/mpv stopped working. mplayer still works fine on
 > the same files.
 > =
 > mpv writes:
 > =
 > drmRadeonCmdBuffer: -22. Kernel failed to parse or rejected command stre=
 am. See dmesg for more info.   =
 > =
 > and dmesg contains:
 > radeon0: warning: r600_cs_track_validate_cb:419 cb height (1080, 0x20, 4=
 ) invalid
 > radeon0: warning: r600_packet3_check:1737 invalid cmd stream 484
 > DRM error in radeon_cs_ib_chunk: Invalid command stream !
 A possible explanation - maybe - regarding why mplayer still works...
 By default, if it is possible[0], multimedia/mpv uses opengl video
 output, can you try other --vo options with multimedia/mpv (e.g.:
 --vo=3Dxv or --vo=3Dx11, for the complete list there is --vo=3Dhelp).
 Unfortunately this will not help a lot regarding fixing the issue but
 can isolate the cause.

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