[mythtv-users] Decoder DMA Error

jmallory at lcisd.net jmallory at lcisd.net
Tue Dec 28 01:34:13 UTC 2004


When I first started to use MythVideo, I tried to watch some DVD rips that I had made, that I knew worked before I started outputting X to my PVR-350.  After I started pushing everything out to the PVR-
350, I could not watch any of the videos.  It would just sit there when I selected the video.  So then I found out that you have to change in the settings of mplayer, -vo xv to -vo x11.  Well, the videos are 
now playing, now I get a loss of video signal, a popping sound, followed by the video picking back up.  Its very random, and very distracting.  I started tailing the messages log file, and this is what I am 
seeing: 

Dec 27 18:29:48 mythtv kernel: ivtv: Decoder DMA Error 0x00000013
Dec 27 18:29:48 mythtv kernel: ivtv: Reloading FW from Stream 100
Dec 27 18:29:48 mythtv kernel: ivtv: FW Reload: Set DEC IRQ Mask!
Dec 27 18:29:48 mythtv kernel: saa7127: Turn on/off Output
Dec 27 18:29:48 mythtv kernel: saa7127: Turn off Video Output
Dec 27 18:29:48 mythtv kernel: saa7127: Disable Video Output
Dec 27 18:29:48 mythtv kernel: Resetting Firmware from Dec DMA error!!!
Dec 27 18:29:48 mythtv kernel: ivtv: Preparing for firmware halt.
Dec 27 18:29:48 mythtv kernel: ivtv: Stopping VDM
Dec 27 18:29:48 mythtv kernel: ivtv: Stopping AO
Dec 27 18:29:48 mythtv kernel: ivtv: pinging (?) APU
Dec 27 18:29:48 mythtv kernel: ivtv: Stopping VPU
Dec 27 18:29:48 mythtv kernel: ivtv: Resetting Hw Blocks
Dec 27 18:29:48 mythtv kernel: ivtv: Stopping SPU
Dec 27 18:29:48 mythtv kernel: ivtv: Sleeping for 10ms
Dec 27 18:29:48 mythtv kernel: ivtv: init Encoder SDRAM pre-charge
Dec 27 18:29:48 mythtv kernel: ivtv: init Encoder SDRAM refresh to 1us
Dec 27 18:29:48 mythtv kernel: ivtv: init Decoder SDRAM pre-charge
Dec 27 18:29:48 mythtv kernel: ivtv: init Decoder SDRAM refresh to 1us
Dec 27 18:29:48 mythtv kernel: ivtv: Sleeping for 600ms (600 recommended)
Dec 27 18:29:48 mythtv kernel: ivtv: Sleeping for 10 ms
Dec 27 18:29:48 mythtv kernel: ivtv: Sleeping for 10 ms
Dec 27 18:29:49 mythtv kernel: saa7127: Turn on/off Output
Dec 27 18:29:49 mythtv kernel: saa7127: Turn on Video Output
Dec 27 18:29:49 mythtv kernel: saa7127: Enable Video Output
Dec 27 18:29:49 mythtv kernel: ivtv: Success Reloading FW!
Dec 27 18:29:49 mythtv kernel: ivtv-osd: Framebuffer is at decoder-relative address 0x00510000 and has 1704960 bytes.
Dec 27 18:29:49 mythtv kernel: ivtv-osd: screen coords: [0 0] -> [720 480]
Dec 27 18:29:49 mythtv kernel: ivtv-osd: original global alpha = 208
Dec 27 18:29:49 mythtv kernel: ivtv-osd: current OSD state = 39
Dec 27 18:29:49 mythtv kernel: ivtv-osd: new global alpha = 208 (1 255 0)

I have seen some people complain about this in the past, but so far, no one has given a solution.  Has anyone had this problem?  Has anyone fixed this problem?  Any ideas at all?

Jeromy Mallory



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