My myth box has been tearing during playback. It was pointed out that starting mythfrontend with the "-v playback" option would give me debugging information: and I found out that I didn't have DRI drivers for my savage chipset. I installed the latest savage drivers, version of Xorg, etc. Then I got this error:
> DRMVideoSync: VBlank ioctl did not work, unimplemented in this driver?
I posted on the savage driver mailing list and it was confirmed that this was unimplemented as yet.
So.... I then went out and bought myself a cheap nVidia card. I figured that hardware shouldn't be an issue here - getting the vblank information is a fairly basic function. So I bought myself the cheapest nVidia I could find - a Gigabyte board with an nVidia MX 4000 chipset.
I managed to get the nVidia drivers installed (2.6.10 kernel requires a patched nVidia driver, sigh). I then started up myth with the -v playback option and got:
> nVidiaVideoSync: VBlank ioctl did not work, unimplemented in this driver?
WTF?!? The nVidiaVideoSync method was written to work with those nVidia drivers, wasn't it?
Does anyone actually implement this ioctl? Has anyone managed to get either DRMVideoSync or nVidiaVideoSync to work? If so, what chipset and driver combination did you use?
Frustrated,
Will :-}
--
Dr William Uther National ICT Australia
Phone: +61 2 9385 6357 School of Computer Science and Engineering
Email: [EMAIL PROTECTED] University of New South Wales
Web: http://www.cse.unsw.edu.au/~willu/ Sydney, Australia
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