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Solve : computer desktop not filling up tv screen?

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Hello

I've just reinstalled my OS (Windows 7) and the desktop isn't filling up the tv screen. About 5" on either side is just black. I use a 40" Sony tv for my computer monitor. I have this problem every time i reinstall the OS and i'm not entirely sure what i need to do to sort it. I used to think if i messed around with the display/resolution settings it would fix but i think last time it didn't fix itself until i turned the computer off. When it was switching off it started doing an update and when i next switched the computer on the screen was filled so i assumed the update had done something.

Problem is when i switch off now there's not automatic update. Any ideas how to fix this problem?Quote

I have this problem every time i reinstall the OS
Why would you install the OS more that once a year?
Do you have the right drivers?
Using a TV set for a monitor can cause this problem. It is often the TV set that does not set the scan rate correctly. Try settings for resolution and refresh. The TV set should be set to 'auto' to get the scan correct.I have the same problem myself. Drives me crazy.
Here is one of many recommendations about how to overcome this.
http://www.tomshardware.com/forum/283844-33-using-monitor-fitting-full-screen
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I had a similar problem with my LG HDTV. I resolved the issue by going into the HDTV's Picture Menu and WITHIN Aspect Ratio I selected "Just Scan" which resolved the problem WITHOUT having to go into the display manager. ....
So you have too fiddle with the TV sets display settings. I have done that, but still I have to turn the TV set on and off to get it to 'think' about the settings.
Hope this HELPS some. Just be patient.
If the black is on left and right sides and not the top and bottom, it's likely you're using a resolution that's 4:3 or 5:4 instead of 16:9 (or whatever the ratio of your TV is). Try setting your resolution to 1366×768, 1600×900, or 1920×1080 (all 16:9 resolutions). 1280x720 will also WORK on a 16:9 screen, but some fixed window size programs won't fit on the screen (limited to a minimum of 768 vertical).

If on the off chance your screen is 16:10 (or 8:5), try 1280x800, 1440x900, 1680x1050, or even 1920x1200 (all 16:10 resolutions).

If you have black on all 4 sides and your screen is 16:9, try setting the resolution for a PROGRESSIVE scan resolution, like 720p (1280x720) or 1080p (1920x1080), and it should fill the screen. Some TVs have trouble with other 16:9 resolutions.


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