Actually, that's not entirely true. 1:1 pixel mapping just means that the tv display matches the resolution it receives. Let me elucidate:
gfx card tv
1080 1080 1:1 pixel mapped
1080 720 not 1:1 pixel mapped
1080 768 not 1:1 pixel mapped
720 720 1:1 pixel mapped
720 768 not 1:1 pixel mapped
720 1080 not 1:1 pixel mapped
I'm having the same issue both with my computer display and LED TV attached via HDMI.
In WIN7 I allmost can't see the edges and taskbar, same goes for XBMC and playing movies on LED TV and Projector! I switched between 2 HDMI 1.4 cables just be sure!
Any ideas how to get a 1:1 resolution would be welcome!
Latest intel vga drivers
At the beginning of the summer, I built a desktop computer and an HTPC using the Intel DH77EB motherboard and an i5 processor with HD 4000 graphics. My HTPC is connected to a Hitachi 51F59a TV which is a rear projection CRT TV from 2006. It is connected via HDMI and the overscanning is significant (cannot see the task bar or the left-most column of desktop icons).
I found this article from Intel's website titled "Intel Graphics & Televisions FAQs." http://www.intel.com/support/graphics/sb/CS-033418.htm?wapkw=hd+4000+overscan
The second to last question asks "Why can I see the center of the Windows* desktop, but not the top, bottom, and sides?" The suggested solution is to go into the graphics options and adjust the horizontal/vertical scaling from the general settings. When I go into this area, the available settings don't appear as they do in the screenshot from the FAQ's page. I was doing some reconfiguration on my HTPC and connected it to a smaller LCD TV. At the bottom of the settings, there is a drop down selection to maintain the aspect ratio or to use custom scaling. I had to first select the custom scaling, then apply that change before I could actually adjust the scaling. Once I did that, it worked fine and I could rescale my image. I was also able to do this from my desktop computer connected to an LCD monitor. Scaling was not necessary using either of these displays, but I figured out how to make the adjustment.
I then moved my HTPC back to the living room and connected it to the older HDTV (still using HDMI for my connection), but the scaling I had done before moving the PC was no longer applied. I went back into the graphics properties and found out that the scaling option is no longer available. The only choice from the drop down list in the settings was to maintain aspect ratio. My LCD is capable of 1080p at 60Hz while the CRT is only capable of 1080i at 59Hz. Which of these differences would be reason that scaling is not available on the rear projection CRT TV?
Message was edited by: Todd Nicholson
May I ask why Intel doesn't take care of an impossible to fix problem and what is with this "lets make everything simple so idiots doesn't get confused and switch to tablet" style of Intel these days?
I worked in TV business and Projector business. You simply don't throw away a $20K projector because some trendy intern at Intel removed a critical option for business&multimedia for sake of "simplicity".
Laptops&portable computers are made for REAL WORK, not for entertainment and sub 100 IQ people who gets confused by the term "overscan".
I hope Intel gives up this "lets make things simple" mentality soon. No, we can't hand code assembly and patch television&projector firmwares to have additional options!