[mythtv-users] ivtv setup question

[Kyle Rose]

William Powers <wepprop at sbcglobal.net> writes:

> Uh, no.  I think you missed my point.  MythTV reconfigures the card
> before each and every recording based on the information in its
> channel database.  Thus, the only way to make a permanent change is
> to make the change in the channel database.  Any of those parameters
> you set via test_ioctl will be overwritten the first time the card
> is actually used. If you are conversant in mysql, it may be easier
> for you to make the change directly into the database rather than by
> using MythWeb. Personally, I find the GUI easy to use, but that's
> just me.

For those of you looking to do this without any prior knowledge of
database hacking, a global change is best effected by

mysql mythconverg
update channel set contrast=FOO; (where FOO is a new contrast value)
update channel set brightness=BAR; ("   BAR  " "  "  brightness ")
... etc.

If you want to restrict it to channels from a particular source, you
would

update channel set contrast=FOO where sourceid=MYSOURCE;

and so forth.  Thus ends your SQL primer. :)

Yeah, it would be nice to have channel-global modifiers/multipliers on
a per-frontend basis, so one could specify the general
brightness/tint/contrast of a display.  But you know what?  That's
what Xv is for, so I'm less inclined to pound on the lack of this
feature.

Cheers,
Kyle