RXV- 2700/2600 problems seeing 720p PJs with DVI input
I hope I am not breaching any Posting Rules here ....
I have posted this problem under the RXV-2700 and 1700 because I have confirmed that this problem is common to the 2700 and the 2600 .. Here goes ..
Purchased BenQ PE8700+ 12 months ago. Proprietary delinterlace and scaler were hopeless esp on signals received thru DVI input. eg 1080i->540p and other lower resolutions the aspect ratio is impossible to get right... ssems as tho it is "dropping" vertical lines while maintaining width.. Also it doesnt seem to have any resizing to fill "full screen". Digital Cable signals even worse ... 30% compressed width but full height???? etc etc So gave up on the BenQ internal video processing
So 6 months ago after throrough reading the Yammie 2600 manual and discusing with Yammie customer support purchased the 260 to do all the video processing and just put native 720p into the 8700+. Also hoping the reduced load on the processor will stop fast motion "jaggies".
Found out much later that HDMI source input DOESNT UPSCALE (Shame!) 2700 same! So I have been attempting to upgrade just he analog sources input to the 2600 and using the HDMI MONITOR OUT to the DVI-I port of a BenQ PE8700+ 720p DLP Projector. But the ONLY options I get on the GUI to output are "Through" (no upscaling) and 576p (I'm running PAL so it the equivalent of your 480p).
Yamaha told me forcefully 6 months ago that it was the BenQ that needed an firmware update to its EDID table which is supposed to send back on DVI pin 7the DDC signal with Basic EDID and Extended EDID the display capabilty of the projector. It appeared at first that he BenQ had been programmed to send 576p (or 480p) whereas is should have been sending "I am a 720p"! BenQ claim there is no firmware upgrade for this and they are "sure" the EDID table would be correct (sure???? Yeah).
Later BenQ told me that the DVI port was NEVER fully implemented ... was just VESA standard for PC connection but not CE Standard for Broadcast Video. (Great they didnt tell me before I bought the BenQ one year ago .. or at least some time in the last year of constant hassling with them about various issues including poor de-interlacing and scaling by their onboard proprietary processor esp via DVI). Back to the Yammie ..
Earlier tonite I was reading a "white paper" on the incompatibity of PC based Vesa DDC and TV/Video based CE EDID .. and then I read a posting elsewhere on Audioholics of a problem which looked very much the same a mine. It quoted Yammie engineers allegedly confirming that there was an "undershoot" fault on the DDC line on all 2600s manufactures before April 2006 and there may be a Yammie fix for this (unclear).
Anyone know about this?
But as of the last post their 6 months ago there was no solution.
Oh, by the way I got a similar result inputting both 2700/2600 to a Sharp XVZ2000 DVI port recently but in that case (worse) I could not even select 576p (480p) and the only choice was "Through". However the white paper suggested that same EDID tables (or is it HDMI senders?) may default to 576p (480p) where there is "no handshaking at all", but I tend to think in such as case the Yammie would just say HDMI error and/or HDCP error and give no display ???? .
Has anyone had this type of Problem Upscaling Yammie HDMI-> Projector DVI .. and solved it?
If NOT, Clint/Gene do you have any info on this incompatibility. I haven't yet seen a Review on the 2700, and I tried one last week into the BenQ DVI port and the Sharp DVI port in an attempt to sort out this problem but the results was identical to the 2600 ... that is it cant get upscaling above 576p (480p) (because 720p and 1080i are greyed out on the Yammie GUI)
Desparate Now.
P.G