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I have a HP G62 notebook. Video card is:

$ lspci | grep VGA
01:05.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RS880M [Mobility Radeon HD 4225/4250]

I have a bigger monitor connected to this computer with a D-Sub VGA cable. Today I just upgraded from 12.04 to 13.04. The result was that dual monitor is not working anymore. Catalyst is not working either. I have tried to install binary dirvers from AMD.

amd-driver-installer-catalyst-13.3-beta3-linux-x86.x86_64.run

But the installer tells me that my video card is not supported. All I need is Full HD output on the D-Sub port of the notebook.

The fglrx module cannot be loaded. It tells me there are no compatible adapters. Ubuntu supplied fglrx and fglrx-updates packages do not work either. The best resolution I can get is 1368x768 on the laptop's display. But I bought the bigger monitor for a reason, and I really need it. Please help.

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Actually I have managed to use the bigger monitor, by closing the laptop's display right after I turn the power on. If I start the laptop this way, then under settings/monitor settings, I have a button to "Turn of laptop monitor and use external LCD monitor only". The fglrx doesn't work anyway. Sill no hw acceleration, and no dual display support. But at least I can use the native resolution of my external monitor. –  nagylzs May 10 '13 at 13:38
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