I just upgraded from R4V5 to R5A16. At the same time I put together a new sff box (shuttle sn41g2). This sn41g2 has the integrated video Nforce chipset. I took the HD from the system listed in my signature, put it in the sff box, booted to the R5A16 cd and did and auto-upgrade (I did a backup on the old box first). Everything went well as per the instructions, reset my ivtv settings as per the forum sticky and got the box working reasonably well.

All my music and video filles were intact and all the progam guide stuff came over fine. One little problem I am noticing.

When I view a previously recorded video (from old box) the video jitters for 3-5 seconds and then plays fine. Not much jitter in the sound. If I watch live TV, same 3-5 second jitter at start up. Change the channel, same little jitter.

Since the /myth was not re-written with an auto upgrade, and I swithched MB chipsets, I am thinking maybe if I do a fresh install, maybe my problem could be solved.

Or mayby just copy the /myth to my winbox, re-format /myth, and put my files back and try it.

I have flashed to the latest MB bios, and I did install the Nvidia video drivers, and DMA is enabled.

Am I on the right track on what to try next.?

I am pretty much a noob in Linux, any suggestions would be greatly appreciated.

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SIS K7S5A mb R4V5
Amd 2000 + cpu Atheros chipset wireless NIC
GF4 ti4200 Video onboard ALSA sound card
768 meg sdram partial install on Nuv2disc
120 g maxtor HD
PVR 250 Video Capture card

Does this only happen when the overlay menu things come up? And does this sound familiar:

Having set it to Bob, the picture quality is much better Very Happy However any overlay menus cause this really weird flickery effect, and the tv picture looks like its displaying frames out of order! (hard to describe)

Is there any way to combat this?


it doesnt seem to be actually dropping the frames, consider a 10 frame section. it looks like it plays as follows:

frame: 2,1,4,3,6,5,8,7,10,9

When the overlay menu's disapear this effect stops and goes back to normal!

Well, I found a fix. I un-checked xvmc on one of the setup menu's and the flutter went away. I never had this issue with the other mb, but it definitely seems to be an issue with the SFF nvidia chipset.

Thanks to TJC who had mentioned this in one of his many posts of this forum.

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SIS K7S5A mb R4V5
Amd 2000 + cpu Atheros chipset wireless NIC
GF4 ti4200 Video onboard ALSA sound card
768 meg sdram partial install on Nuv2disc
120 g maxtor HD
PVR 250 Video Capture card

well I've always had jitter for a few seconds after an osd was on screen when attempting to use xvmc. It can be somewhat mitigated by setting the fade value as described on the forums somewhere in a very old post before everyone gave up on xvmc.

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Have a question search the forum and have a look at the KnoppMythWiki.

Xsecrets

well,

I appear to have this problem regardless of whether XvMC is on/off, regardless of whether I am using no interlacing/Bob interlacing and regardless of what OSD I am using. I have always had this problem and furthermore I am not using Nvidia.

Couldn't find that old post for changing the 'fade' values though so not sure if that is my solution.

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VIA MII - SVIDEO OUT - PAL UK
Nova-T