I have also ran 1080i with Linux, GeForce4 Ti 4800 SE and DVI. But overscan on my projector was so large that I could not use computer via that so I changed to native 1:1 pixel mapping (1366x768). I can re-check my setup with 1080i and latest NVidia linux-driver.
Please do!!! What all people are getting with 6629, is an offset between the 2 interlaced frames by 10 pixels or so. Like a vertical shadow.
I see that on 6629 I have the same problem. I am not sure on which driver version I tested, but I was under impression that it worked with a bad overscan.
I am running VGA 1920x1080p to my projector instead, but I'm pretty sure the Faroudja FLI2300 deinterlaces better than the HTPC.
I think Faroudja chips are not so good. At least my Philips LCD TV has such chip, and everytime text is scrolling Faroudja's autosensing goes wrong, and on scrolling text I get bad combing and also picture judders a couple of times when format changes. Luckily on my projector I can control deinterlacing by turning off "film" mode deinterlace (so just use video deinterlace), so video material from VDR always runs smoothly. My LCD doesn't allow this. I see that this is problem of my TV, but if Faroudja was good it would not do this.
HTPC also can read MPEG streams flags to aid deinterlacing/inverse telecine, and Faroudja's don't have that stuff because they are behind video line on TVs/projectors.
Best regards, Jori
Hi,
Please do!!! What all people are getting with 6629, is an offset between the 2 interlaced frames by 10 pixels or so. Like a vertical shadow.
I see that on 6629 I have the same problem. I am not sure on which driver version I tested, but I was under impression that it worked with a bad overscan.
Sad! And nvidias bug report feedback == null.. Thanks for testing though!
I am running VGA 1920x1080p to my projector instead, but I'm pretty sure the Faroudja FLI2300 deinterlaces better than the HTPC.
I think Faroudja chips are not so good. At least my Philips LCD TV has such chip, and everytime text is scrolling Faroudja's autosensing goes
This autosensing is not done by the FLI2300, but by Philips circuitry.
Normally, the FLI2300 are thought of as the best deinterlacer for stuff like sports etc (video mateial) (vs SI).
doesn't allow this. I see that this is problem of my TV, but if Faroudja was good it would not do this.
So, what scaler/deinterlacer do you have on your proj? Silicon Image? They both have their advantage, of course, but the HTPC is inferior on HD material imho, espeically when the bitrate goes high. (over 20 mbit is not nice on my HTCP, that´s for sure).
HTPC also can read MPEG streams flags to aid deinterlacing/inverse telecine, and Faroudja's don't have that stuff because they are behind video line on TVs/projectors.
This is true, but as long as we do not have CPU´s powerful enougth, hardware solutions will be better. Also, a big problem is that HTPC´s cannot change their refreshrate to the framrate. Which means bad picture quality, unless "burning" video bandwith by going over 85Hz refresh (or prefferebly higher), but who wants that?
- Micael
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jori.hamalainen＠teliasonera.com -
Micael Beronius (telia)