[mythtv-users] pvr-350 slighly fuzzy picture

[Nick]

On 24/07/06, Bob Mill <bm1ll at yahoo.com> wrote:
> I've been trying to get MythTV installed for the past
> couple weeks. I've pretty much gotten everything to
> work but I've been pretty suprised by the picture
> quality (or lack of) that I'm getting with the
> pvr-350.  As a basis, I'm currently running the latest
> KnoppMyth.
>
> My issue is that  the LiveTV picture is definitely
> "fuzzier" than what I get without using Myth (regular
> TV input).  This seems to be the same whether or not I
> have the "usr PVR-350 hardware encoding" checked.  I
> have bumped up my resolution to 720x480 and have
> increased my bitrate but that doesn't seem to really
> help that much.
>
> I'm kinda suprised that I'm having this problem since
> everyone raves about the picuture quality of the
> pvr-350.  The pictures in the thumbnails (recordings)
> look good, but anything (LiveTV/recordings/etc) at
> full screen looks bad.
>
> By the way, this is on a 52" Hitachi rear-projection
> TV.  This is regular cable, not digital or high def.
>
> Can anyone give me any pointers on how to "sharpen"
> the picture.  I'm starting to wonder if all my work
> was in vain...cool features are great, but lossing
> picture quality is not something I want.  By the way,
> I have tried swapping out cables....didn't help.
> Right now I'm using the same S-Video cable that I use
> for my DVD player (fine picture cable).  I've also
> tried about 3 different coax (input) cables.

Make sure the PVR card is not using (heavy) noise reduction - by
default I think it is enabled when the ivtv driver is loaded - you can
control it using ivtvctl. Also, make sure you have a recent firmware
installed for the PVR card - the ivtv output in the syslog will let
you know if you are using a buggy firmware.

Nick

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