[Bug 35177] [RADEON:RV730:M96:IntelGMA:GPUSWITCHING] radeon driver doesn't detect the radeon gpu

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Mar 15 12:23:11 PDT 2011


--- Comment #19 from Alex Deucher <agd5f at yahoo.com> 2011-03-15 12:23:11 PDT ---
(In reply to comment #18)
> I check boot setup and I can't choose the graphic system at boot time. By
> default, it is the Intel GMA Chip.
> Under Windows 7, there is a button on the laptop to push to switch to the ATI
> video card. And you can configure Windows to auto-select the ATI video card at
> start up of the operating system.
> Under Linux, I fix the choice of the graphic system with the follwing
> directives into the xorg.conf since the button to select graphics system is not
> working :
> Driver    "radeon"
> BusID    "PCI:01:00.0"
> I thought it was the right solution but it seems to be not.

There are a set of acpi methods that need to be called to switch between gpus. 
You might try the howtos on these pages:

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