My HTPC is connected through an AVR via the HDMI output from the GeForce GT 240 graphics card. Overnight with the TV turned off, the screen resolution is changing and down grading to 8 bit color causing WMC not fail. When I power up the TV, I get warning window that the resolution is not high enough to support WMC.
I've already followed the thread regarding HDMI handshaking and created the merged driver for the AVR and TV. This latest problem is driving me nuts. Any ideas?
Sounds like you need something like the DVI doctor, which saves the EDID and fools the PC into thinking the TV is on. I'm not sure if anyone makes an HDMI one, but you could do this with an HDMI>DVI adapter.
http://www.monoprice.com/products/product.asp?c_id=101&cp_id=10110&cs_id=1011003&p_id=3048&seq=1&format=2
OK so before you move forward I don't htink you want that DVI model. It looks like the resolution is lower, and according to an article I found on it isn't HDCP compliant.
http://www.missingremote.com/index.php?option=com_smf&Itemid=198&topic=1105.msg15191
But Amazon has a newer HDMI one that is twice as much but is probably more what you want. you can shop around for best price:
http://www.amazon.com/gp/product/B001RIMZUW/ref=s9_simh_gw_p23_i1?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=center-1&pf_rd_r=1GXJP4SMCWJPGXS2EVDK&pf_rd_t=101&pf_rd_p=51471022&pf_rd_i=507846
You might avoid a lot of problems if you connected your video card directly to your TV and ran S/PDIF to your AVR. Sure, you give up a little convenience, and lose the ability to play audio formats like Dolby TrueHD, but that's mainly an issue if you're also trying to play Blu-Rays on your PC. OTOH, you'd have a simpler system that's more likely to work, as it takes the AVR out of the picture, HDMI audio out of the picture, and so forth. I don't plan on ever trying to run HDMI from computer to AVR until I stop reading that people are having to create merged EDID files, use DVI Detective or Doctor or whatever it's called, are getting "Files needed to display video are not installed" errors from Media Center (which is often an HDMI audio issue), etc. I may give Blu-Ray another try when I read that the player software can switch to 24p automatically, and 24p mode doesn't viciously stutter. I actually have a Blu-Ray drive sitting unused in my computer for the last year in anticipation of that day; I really should've returned it. Meanwhile, I hobble along with my Sony BDP-S350 standalone player, which is ungodly slow to load discs, even with the BD-Live Java nonsense turned off.