Damn...I just wrote war and peace about this and it seem that my post was lost during the "signon again process" !!!!
Bottom line is I can't get a good picture from HDMI at 1920x1080 on samsung panasonic or LG displays witha native res of 1920x1080.
It seems to be something to do with the extra processing that goes on when it's connected via HDMI such as pixel mapping (CYbCr 4:4:4 etc). If i take a monitor, an HDMI cable and a PC and connect via HDMI I get a soft image. If I disconnect the hdmi cable from the monitor, add a dvi converter and plug it into the dvi port on the same monitor I get a crystal clear picture. It's like writing with a 2H pencil on DVI and with a 2B pencil on HDMI.
On ATI command center there is a difference between the two conections. DVI comes up as Digital Monitor and HDMI comes up as DTV with an increased set of parameters. Also with DVI/VGA the display info shows 1920x1080 but with the HDMI it shows 1080p. I believe that the HDMI 1080p implementation is introducing so much processing that the image is not pixel-mapped 1:1 as it is with DVI.
Anyone got any ideas as to how I get a good picture trough HDMI?
Cheers
Bottom line is I can't get a good picture from HDMI at 1920x1080 on samsung panasonic or LG displays witha native res of 1920x1080.
It seems to be something to do with the extra processing that goes on when it's connected via HDMI such as pixel mapping (CYbCr 4:4:4 etc). If i take a monitor, an HDMI cable and a PC and connect via HDMI I get a soft image. If I disconnect the hdmi cable from the monitor, add a dvi converter and plug it into the dvi port on the same monitor I get a crystal clear picture. It's like writing with a 2H pencil on DVI and with a 2B pencil on HDMI.
On ATI command center there is a difference between the two conections. DVI comes up as Digital Monitor and HDMI comes up as DTV with an increased set of parameters. Also with DVI/VGA the display info shows 1920x1080 but with the HDMI it shows 1080p. I believe that the HDMI 1080p implementation is introducing so much processing that the image is not pixel-mapped 1:1 as it is with DVI.
Anyone got any ideas as to how I get a good picture trough HDMI?
Cheers