text display problem, see only graphic lines/gibberish

Asked by TheW on 2012-08-07

Since a new install of ubuntu 12.04 I seem to have a problem with the display of text. from time to time I see graphic lines and gibberish instead of text. It is all over the system, can happen in any application, even in terminal window. If I scroll, or in the case of Guake press f12 to hide the window and then again to show the window, then it is gone and can I see the text again.

Here are photo´s of how it looks like.

What is the solution to this?

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English Edit question
Ubuntu xserver-xorg-video-ati Edit question
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What video chip do you use?

TheW (bratatat) said : #2

AMD E-450 APU with Radeon(tm) HD Graphics × 2

Did you install the proprietary driver?

TheW (bratatat) said : #4

No, only what comes with install of ubuntu 12.04

Then I suggest you install the proprietary driver and it may help

TheW (bratatat) said : #6

Where can I find the proprietary driver?

Use the additional drivers app

Can you help with this problem?

Provide an answer of your own, or ask TheW for more information if necessary.

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