Wrong screen resolution on boot -- works after turning HDMI-connected HDTV on/off

[erik]

Just installed Mountain Lion and had no issues. I'm running a GA-Z68MA-D2H-B3 board with HD3000 graphics on a Toshiba 1080p TV through HDMI. Install went smoothly. First time it boots into Mountain Lion, the resolution is fine. After running Multibeast, however, when I boot up the resolution is not correctly detected. It appears to load at 1080p, but the desktop doesn't fit the TV. I can only see the upper left of the screen. If I turn the TV on or off OR I go into Display preferences and refresh the screen, it corrects itself. No issues after that.

I tried GraphicsMode=1920x1080x32 but that doesn't work.

Any ideas? Not a big deal, but I'd like it to work correctly -- and I didn't have this issues with Lion.

Thanks!

 

[erik]

By the way, here's a guide I wrote, which includes my Multibeast settings:

http://www.tonymacx86.com/mountain-...0-hd3000-graphics-w-hdmi-audio-app-store.html

I think this has something to do with using a TV and/or HDMI. But, again, all worked fine under Lion.

 

[paulkolbe]

I have the exact same issue with my "CustoMac Mini 2011". It occurs on my Mitsubishi 65 inch HDTV and also my 23 inch Acer monitor. Both are 1080x1920 displays.

I would like to have this problem completely fixed without any workarounds. A smooth boot with correct resolution is a must for the HTPC function it is supposed to perform.

Anyone else see this? Any fixes?

 

[Middleman]

See if your HDTV has an Underscan/Overscan option in the menu with regards to the screen size. This usually corrects the problem.