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I have attached external display to my laptop (Dell Vostro 3350 with ATI Radeon HD6470 video card) but image has bad quality: everything is blurred. Where and how to configure that?

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What drivers are you running? –  Bruno Pereira Dec 13 '11 at 13:43
    
I don't know. It's fresh install –  VitalyP Dec 13 '11 at 14:49
    
This question appears to be abandoned and has been flagged for closure. If you are still looking for an answer, you can leave a comment indicating this, or open a new question with more information. –  RolandiXor Mar 30 '12 at 16:23

2 Answers 2

Your ATI card is listed as supported by the close source ATI driver (Catalyst)

To install it run

sudo apt-get install fglrx fglrx-amdcccle

And reboot.

For additional details see

http://wiki.cchtml.com/index.php/Hardware

http://wiki.cchtml.com/index.php/Ubuntu_Oneiric_Installation_Guide

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It might be that your second monitor is not running at the native for your display resolution (the one which is recommended).

Try to play with different second screen resolutions:

Press Win (it opens unity dash or gnome-shell overview -- whatever you use) and type in the search box Displays -- it will show Display Settings. Alternatively, click on user menu in the right top corner and choose System Settings, then in the opened window you should see Displays. There you will see both displays and can change the resolution on the second one.

Hope it helps.

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Thanks. But it's not a problem with resolution. Resolution is fine but everything is blurred. Monitor works well. –  VitalyP Dec 15 '11 at 9:33

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