« Mike Relm | Main | Replace mPlayer with Xine for the default Video player in MythTV »

Mysql to fix Contrast on pcHDTV

So you got the pcHDTV and now the contrast is to high the best would be to use v4lctl to change the contrast on the card:


v4lctl -c /dev/video0 setattr 'contrast' 21500
v4lctl -c /dev/video0 setattr 'chroma agc' on

To test v4lctl:
v4lctl -c /dev/video0 list


but if you are using Fedora core 5 ... this will segement fault (at least with xawtv-20060227-141156)

so to get a similar result you need to put the correct settings in the db, the GREAT thing about mythtv is that it doesnt have a global contrast setting.. so you have to enter this into the db manually:

mysql -u (username) -p mythconverg

at the prompt put:

update channel set contrast=21500,brightness=37500,colour=32768,hue=32768;
update channel set videofilters='adjust=34:253:1.0:23:232:1.0';

if you dont like the results just put in :

update channel set contrast=32768,brightness=32768,colour=32768,hue=32768;
update channel set videofilters='';

to reset it back to the defaults

Posted by Doug on May 9, 2006 1:09 PM |

Comments

you are dreamy.

Posted by: Megan | May 19, 2006 2:27 PM

|digg this

That's awesome, worked beautifully. Thanks Doug!

Posted by: Dave | July 17, 2006 11:36 PM

|digg this

Post a comment

(If you haven't left a comment here before, you may need to be approved by the site owner before your comment will appear. Until then, it won't appear on the entry. Thanks for waiting.)