<div class="gmail_quote">On Thu, Jun 11, 2009 at 8:06 AM, Nick F <span dir="ltr"><<a href="mailto:nikos.f@gmail.com">nikos.f@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div class="im">On Tue, Jun 9, 2009 at 10:14 AM, Paul Gallaway<<a href="mailto:pgallaway@gmail.com">pgallaway@gmail.com</a>> wrote:<br>
>> First, you can get a TTY by changing to one, which means your HDMI<br>
>> output is definitely working to that TV.<br>
>> Unless I missed it, the one thing you haven't mentioned is if your TV<br>
>> supports HDCP or not.<br>
</div><div class="im">>> Is there anything in the Zotac BIOS to turn off HDCP?<br>
><br>
</div><div class="im">> Barring an obvious menu change, there does appear to be some trouble<br>
> with the set and 1:1 pixel mapping over HDMI, possibly HDCP related.<br>
> Read the thread on your TV set over at avsforum as the info is there<br>
> but it's going to take more time to find it than the 5 minutes I spent<br>
> looking. Apparently there is a possible solution posted but I gave up<br>
> looking for it (found lots of responses referencing it but no one<br>
> bothered posting a link). If it involves the service menu you will<br>
> probably have to request someone PM the instructions to you.<br>
> <a href="http://www.avsforum.com/avs-vb/showthread.php?t=1039018" target="_blank">http://www.avsforum.com/avs-vb/showthread.php?t=1039018</a><br>
><br>
> My next suggestion would have been to look at defining an EDID in your<br>
> xorg.conf or forcing a modeline Both are discussed here:<br>
> <a href="http://www.gossamer-threads.com/lists/mythtv/users/372280#372280" target="_blank">http://www.gossamer-threads.com/lists/mythtv/users/372280#372280</a><br>
> If it's an HDCP problem then you are unlikely to get very far with<br>
> either of those methods.<br>
<br>
</div>Thanks guys - a HDCP issue is certainly possible. I see no way to<br>
turn it off on the ION within the nvidia settings available in<br>
xorg.conf, and I can't figure it out on the TV (and I've gone into the<br>
service menu using the instructructions from avsforums). I have<br>
defined several EDIDs and forced modelines - X validates the ones in<br>
spec, uses them - but I get the blank picture syndrome (regardless of<br>
resolution). What's really strange is that it's clearly not an<br>
electrical connection issue - because the same setup with the vesa<br>
driver (rather than nvidia) works just fine (but I can't use<br>
accelerated video which obviously doesn't work for the application).<br>
<br>
Last night in dispair - I took my system from the basement which<br>
drives the 1080p BenQ projector (which is an Atom 330 + a 8400GS<br>
nvidia board) and saw if that worked with my TV. It works fine! I<br>
thought that would be similar to the ION - being an Atom plus a VDPAU<br>
capable nvidia, using the same driver.<br>
<br>
I then took the troublesome Zotac IONITX and connected it to the BenQ<br>
- and it works fine! So - for now I've just swapped them around. It<br>
doesn't completely solve my issue - since I wanted audio over HDMI -<br>
and my 8400GS has a DVI output, but not a HDMI.<br>
<br>
So - it appears there is something peculiar about my TV, and the ION.<br>
I've tried various drivers from the 180.x and the 185.x family - but<br>
maybe need to try a pre-180 driver to see if the behaviour is there as<br>
well (but then I wouldn't get VDPAU - which would defeat the purpose<br>
of the board, but at least narrow down the problem).<br>
<br>
If anyone knows how to fiddle with HDCP settings in the nvidia driver<br>
I would appreciate it, if that is indeed the problem. It certainly is<br>
the most logical at this stage. The only good thing to come of this -<br>
is that I am now completely up to speed with modelines and xorg.conf!<br>
<div></div></blockquote><div><br>I do not believe that linux supports HDCP. <br></div></div><br>