Cant adjust 2nd screen with radeon hd 5450

Radeon HD 5450 using it as dual montitor for TV,no problems with the picture but unable to adjust the size independently????????? Tried every possibility is it just something the card can't handle???
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More about cant adjust screen radeon 5450
  1. what cable are you using for the TV?
  2. You need a better TV Tuner, the change over isn't being handled properly by the Tuner, the card can be configured fine once it is set.
  3. Using HDMI cabling between PC & TV.

    Samsumd TV doesn't give the option of expanding the picture !
  4. What are the 2 resolutions at?
    And the ports used for connectivity?
    The spec of your card are stated below and depending on the max resolutions offered by the TV & the Monitor, I suggest you connect them to the respective port that give you the corresponding resolutions on the card or higher, but not lower.

    Integrated dual-link DVI output with HDCP
    Max resolution: 2560x1600

    Integrated DisplayPort output
    Max resolution: 2560x1600

    Integrated HDMI 1.3 output with Deep Color, xvYCC wide gamut support, and high bit-rate audio
    Max resolution: 1920x1200

    Integrated VGA output
    Max resolution: 2048x1536

    Also , use the CCC to scale the display, in it go to the My Digital Flat Panel tab you have Scaling Options and HDTV Support. But before that go to the Properties and see that Scale image to full panel size is enabled under GPU scaling.
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