[mythtv-users] Consistent flicker with ivtv-fb + PVR-350 decoding

[Stefan Haflidason]

On 3/4/06, Al McIntosh <junkmail at allanmcintosh.com> wrote:
>
> Stefán Hafliðason wrote:
>
> >Hi all,
> >
> >I'm using mythtv 0.19 with a PVR-350. Recently, I think since I upgraded
> >to 0.19, I have been getting a constant flickering when watching live tv
> >through the tuner or s-video inputs. The flickering might be better
> >described as a fairly regular flash of black.
> >
> >I am also getting the following errors many times in /var/log/messages:
> >
> >ivtv0 warning: prep_user_dma: SG_length 400 page_count 400 still full?
> >ivtv0-osd warning: ivtvfb_prep_dec_dma_to_device, Error with
> >get_user_pages: 1638400 bytes, 400 pages returned
> >ivtv0-osd warning: Error: prep osd dma to device rc=-5
> >ivtv0-osd warning: DMA xfer from b7318008 of 1638400 bytes failed with
> >(-5) offset = 0x0, total 1638400
> >
> >I am currently running:
> >
> >kernel 2.6.10-r9 (Gentoo),
> >PVR-350,
> >ivtv 0.4.2 - I have just tried 0.4.0, no difference
> >
> >The flickering only occurs when using the PVR-350's decoder to watch
> >something on either input (currently static on the tuner (limited access
> >to aerial) and tv-out from another computer on the s-video input).
> >Watching a previous recording (with no flicker) works fine.
> >
> >Thanks,
> >
> >Stefan.
> >
> >
> >
> >
> >
>
> You may consider taking this topic over to ivtv mailing lists.
>
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>

Will do; apologies for the mis-posting.
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