[mythtv-users] Troubles viewing 1080i and even 720p
adam at propeck.com
Sat Jan 7 18:18:44 UTC 2006
Are HDTV's not able of EDID via DVI? That's how I fixed my problems with my
projector and not knowing the correct ModeLines. I checked the xorg log and
low and behold I found the correct Modelines that were being returned by my
projector as valid. I used that one for 720p and I turned on Linear
deinterlacing and lost all the crappy motion blur I had been fighting with.
On 1/7/06, Steve Adeff <adeffs at gmail.com> wrote:
> On Friday 06 January 2006 22:44, Len Reed wrote:
> > I am completely frustrated with trying to get HDTV working. I can get
> > 720p (with issues) but not 1080i. I've tried different drivers, cards
> > (both Nvidia PCIE), modelines, and both DVI and component video.
> > Setup
> > -----
> > Nvidia Geforce 6600 (DVI and component out)
> > Fedora core 4 x86_64, up to date
> > Nvidia driver (tried last three, including very recent patch)
> > Athlon-64x2 3800+
> > 1GB RAM
> > Mitsubishi WD-52628 TV (internally 1920x1080p)
> > Custom built 2.6.15 kernel, though Fedora kernel doesn't work any better
> > The TV accepts 720p and 1080i via component and HDMI. Both inputs
> > worked fine with an upscaling DVD player (720p and 1080i) and the cable
> > set top box (1080i).
> > I really want to do 1080i, since the cable source material is all 1080i
> > and the TV has 1080 lines.
> > Here's where I can do.
> > 1. With special Modeline (I've tried several) I can do 1080i and get a
> > really nice desktop (component only). I can bring up mythfrontend, but
> > if I try to play video (NTSC), X goes crazy. X takes 99% of one core.
> > I have to ssh into the machine and shut it down (everything, not just X)
> > to get decent video again. Running mplayer does the same thing, whether
> > given 1920x1080 or DVD material or NTSC-based .nuvs.
> > 2. With the special modeline I can do 1080i DVI->HDMI, but the
> > interlacing is off by several millimeters. Several people have reported
> > this.
> > 3. I have been unable to get 720p to HDMI working.
> > 4. 720p to component video presents a lovely desktop and video plays
> > (high def and NTSC, including mythfrontend playing NTSC). I don't
> > specify any special modelines, but just tell it to use TV "HD720p". The
> > high def video (mplayer) looks decent enough (though 1080 would be
> > better), but the NTSC from myth looks like crap. No matter what
> > deinterlacing method I try the playback looks lousy whenever there is
> > motion.
> > I haven't even bothered with the highdef backend (I'm just connected
> > over the network to the existing NTSC backend). There seems little
> > point in capture stuff I can't view. Sample 1920x1080i files were
> > captured a couple of weeks ago when I was playing with the HD5000 card.
> > If anyone has 1080i working I'd very much like to see your xorg.conf and
> > know what card and driver you're using.
> > If I ever do get this working, I'll post a complete report.
> > Thanks for any help.
> > Len
> the newer nvidia drivers don't properly do interlaced modes, I don't
> what the version is, but someone posted it to the list a while back a
> should bring it up.
> Hopefully this is the issue with X freaking out. Good luck solving the
> problem. You might also want to search around avsforum.com and elsewhere
> see if you can find proper modelines that your tv will accept.
> There are some ATSC standard modelines to try at:
> if you find working modelines for your tv, please email them to me so I
> add them to the new mythtv.org wiki entry.
> mythtv-users mailing list
> mythtv-users at mythtv.org
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