Topic Title: [Problem] Linux legacy and normal drivers
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Created On: 12/26/2012 05:50 PM
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 12/26/2012 05:50 PM
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Hi I have a computer with switchable graphics.

Both are AMD, Mobility Radeon HD 5470 and Mobility Radeon HD 4000 series.

If I install the linux legacy drivers, the computer doesn't boot at all, not detecting the Radeon HD 5470 and if I install the normal drivers, it crashes, not detecting the Radeon HD 4000 series.

I read the post about checking with the PC manufacturer, but I already checked with my Acer and they don't offer me any solution as both cards are AMD.

What can I do to be able to run my PC and switch between cards?

Thanks in advance.

 12/26/2012 05:55 PM
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Heavy Wizardry

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The AMD Mobility Radeon™ graphics driver supplied by the notebook manufacturer is customized for the built-in display and the features and functions specific to the notebook. It is recommended to use the drivers provided by the notebook manufacturer.

If installing an operating system other than the one currently supported by the notebook, the notebook may not meet all requirements. As such supported graphics drivers may not be available.

The AMD Mobility Radeon Driver Verification Tool will display the following error if it fails to validate the graphics hardware. This is due to incompatible hardware/configuration in your notebook. Please contact the notebook manufacturer for assistance.

The AMD Mobility Radeon Driver Verification tool helps you determine your notebook’s compatibility with generic AMD Catalyst Mobility drivers. It helps to prevent incorrect installation on incompatible notebooks which may lead to disabled features or functionality.


If you experience difficulty while using the generic AMD Catalyst Mobility drivers, we recommend reverting to the driver provided by your notebook vendor. Please contact your notebook vendor for their most recent graphics drivers.


The following notebooks are not compatible:

Toshiba® notebooks
Sony® VAIO® notebooks
Panasonic® notebooks

Notebooks equipped with switchable graphics


Intel I7 960 @ 3.87ghz *Intel DX58SO *AMD R9 290 4gb *Corsair TX650M *2x4gb Corsair XMS3 *WD Black 1TB *Windows 7 Home Premium 64bit ***Asus N71Jq laptop *Intel I7 720QM Processor *Mobility Radeon HD5730 1gb *8gb Ram *Windows 7 64bit ** Toshiba P75-A7200 * Intel I7-4700MQ * Windows 8.1 64bit 

***** cetera fallunt, ludere mortuus ******

 12/27/2012 11:23 AM
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Yes I read that already.

The thing is that it was working perfectly with the normal drivers until AMD decided to create the "legacy" branch of drivers for Radeon HD 4000.

Now, as one of the cards is legacy and the other uses normal drivers, it doesn't work anymore.

My laptop brand is not offering me support as it is a problem only about AMD Drivers with AMD graphic cards.

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