On 1366x768 over HDMI to Panasonic plasma panels sporting this particular NR:
This should work on all G6, G7 and G8 50" or greater models but I played most with the G6 that I have at home (TH-50PHW6) and then verified the results on a G8.
First, the HDMI blades (TM-FB7HM and TM-FB8HM) cannot be installed in my G6 and so I can not say if the FB7HM blade can do what it should - that is accept NR. The FB8HM blade will only accept 640x480@60 other than video signals over HDMI so it's pretty much useless for NR bypassing the internal scaler.
So, the following is about using the TY-42TM6D blade with a HDMI-to-DVI-D cable.
I upgraded the VP30 firmware to 1.05 and this should be important when using the DVI blade as the book says it will accept 1366x768@60 with H-/V- Sync Polarity and older firmware had a bug which caused polarity to be always H+/V+ no matter what one chose from the menu (see the dvdo vp30 1.05 release firmware description in the corrected bugs section).
Maybe other stuff got corrected too, fact is that after the upgrade there was no need to adjust horizontal size and position from the panel after getting the image to show onscreen.
So, after playing with quite a few values I decided on the following Output setup:
Colour space obviously RGB
Frame rate: 50 unlocked to 60.00 for 50Hz input, 60 locked to 60.00 for 60Hz input
1366x768@60, H-/V- Sync Polarity
Hback: 307 (this would give a computed Htotal value of 1794)
Vback: 18 (this would give a computed Vtotal value of 806)
With the above settings I can achieve pixelmapping at NR and info shows Fvert=60Hz, Fline=48.359kHz (vs. 48.36 in the blade specs) and Fpixel=86.758MHz (vs. 86.75 in the blade specs). This is as close as I could get to the specs in the TY-42TM6D manual and it looks as it should onscreen.
Also, when first selecting 1366x768 output AFTER specifying H-/V- the blade will not sync (the Vsync is not wide enough) and you will read No signal on the panel. Simply go (using remote or front keys to Vsync and increase Vsync to 17, the rest is a breeze as you will immediately be able to use the display. No need to mention that you must firs set advanced user mode in config.
There are lots of other combinations that work, I just wrote down this one because it gave the closest timings to those "nominal" mentioned in the blade manual.
Now I can't wait to get my hands on the 102 board ...