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Output to tv - 1080p now being scaled & missing part of screen

post #1 of 2
Thread Starter 
This has been a head scratcher....
Akai 42" LCD tv, Windows 7, dvi-vga adapter, vga cable to tv. Core2 2Ghz, 2 Gb Ram.

Previous setup - AMD x1950PRO to Akai tv - using ancient drivers could run @ 1080p (tv detected it and close look @ pixels confirmed it.)

Have now changed to a HD7750 and am having the left part of the screen extended off. Top, bottom & right are fine.

Any change to refresh rate results in unsupported.

Cannot adjust the tv via its own menu far enough.

AMD CCC adjustment to position/size dont go far enough, enabling GPU scaling results in unsupported. Plugging in HDMI results in a flickering blue/black screen.

I cant even change to 1024x768 without getting "unsupported" when I vnc into the computer every time the refresh has changed to 51Hz from 60Hz.

BUT on bootup it goes through all the low res modes of bios/win7 load screen etc all the way up to 1920x1080 but even the login screen is to the left.

Device manager detects the tv as Generic, and windows display says HDTV42

Just going up through the resolutions manually and setting the refresh to 60 I have managed to get it to work in 1024x768 1280x1024

I have managed to get it to 1600X900, and by tweaking the display timings on the catalyst control I have it on screen with a black strip top & bottom.

Any advice greatly appreciated - I may have to lug another computer over to it and see if that is driving it fine with an HD5450...
    
CPUMotherboardGraphicsRAM
Wolfdate E8400 @ 3.78 Ghz 1680fsb Gigabyte DQ6 v 3.3 HD 7770 OC 4Gb @ 840MHz 
Hard DriveOSMonitorPower
1x 128 SSD 1x1.5Tb Multiple Highpower 560w 
Case
Trinity - Modded for cooling 
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CPUMotherboardGraphicsRAM
Wolfdate E8400 @ 3.78 Ghz 1680fsb Gigabyte DQ6 v 3.3 HD 7770 OC 4Gb @ 840MHz 
Hard DriveOSMonitorPower
1x 128 SSD 1x1.5Tb Multiple Highpower 560w 
Case
Trinity - Modded for cooling 
  hide details  
Reply
post #2 of 2
Thread Starter 
Ugh - same problem with the other computer..

Interestingly enough it did do 1920x1440 IN SAFE MODE!! So I'm sure its the drivers not the TV

Is there any way to override the refresh rates?
    
CPUMotherboardGraphicsRAM
Wolfdate E8400 @ 3.78 Ghz 1680fsb Gigabyte DQ6 v 3.3 HD 7770 OC 4Gb @ 840MHz 
Hard DriveOSMonitorPower
1x 128 SSD 1x1.5Tb Multiple Highpower 560w 
Case
Trinity - Modded for cooling 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Wolfdate E8400 @ 3.78 Ghz 1680fsb Gigabyte DQ6 v 3.3 HD 7770 OC 4Gb @ 840MHz 
Hard DriveOSMonitorPower
1x 128 SSD 1x1.5Tb Multiple Highpower 560w 
Case
Trinity - Modded for cooling 
  hide details  
Reply
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