On 01/15/2016 08:36 AM, Ken Teh wrote:
> I installed a Radeon 5450 card in an SL6.7 machine in the hopes of
> getting a higher resolution video.  The on-board could only handle
> 1280x1024.  But I've been unable to get it to work.  At first I thought
> I bought the wrong card - a Radeon 6430.  So, I ordered a 5450 after
> looking through the list of supported chipsets reported in the
> Xorg.0.log file.  The 6430 was not listed even though it did list 6000
> series.  The 5450 was explicitly listed.
>
> But the net effect is the same.  The Xorg.0.log reports no screens
> found.  It apparently starts with a
>
> [KMS] drm report modesetting isn't supported
>
> Then, starts to go through a series of fallbacks, deleting each Screen 0
> because there was no matching config section.
>
> I would appreciate any help you can provide.
>
> Thanks.

Try installing the kmod-fglrx/fglrx-x11-drv packages from elrepo.  This 
is ATI's binary driver and is generally kept up to date.

-Mark