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[zajc <312756@xxxxxxxxxxxxxxxxxx>]

Here is another semi-working graphics card in notebook HP Pavilion
g7-1007em -> AMD Radeon HD 6470.

lspci -v | grep VGA
VGA compatible controller: Ati technologies Inc M880G [Mobility Radeon HD 4200]
VGA compatible controller: Ati technologies Inc NI Seymour [AMD Radeon HD 6470]

It is working fine in Ubuntu 10.10. In 11.04 it stops working.
xorg.0.log shows this the following error:

Invalid ATI BIOS from int10, the adapter is not VGA-enabled
Invalid video BIOS signature!
GetBIOSParameter failed

When using kernel 2.6.38-8 the screen is blank no matter which driver I
configure in xorg.conf.

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https://bugs.launchpad.net/bugs/312756

Title:
  MASTER: support graphics card hot switch

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