On 03/04/12 03:16, Michael Hampicke wrote:
>> However, now that the firmware loading problem is fixed, my screen still
>> goes
>> black on bootup.  But now it's instantaneous instead of 60 seconds
>> delayed :(
>>
>> I'm back to functioning vesa mode if I boot with radeon.memset=0, but
>> that's
>> not really my goal...yet :p
>
> Last time I reinstalled gentoo, I tried kms too (with my Radeon HD2600
> card). And I had lots of problems with it - in combination with
> ati-drivers fglrx module (blank on boot, freeze while starting X,
> generell crashes and kernel panics, low performence...,...). So I
> finally decided not to use kms disable everything related to kms. Since
> then everything is running smoothly. Two weeks ago, I purchased an new
> video card (Radeon HD7770) and gave kms another shot. And again,
> everything went down the crapper. So disabled it. I can live without it
> for the time being. But still, I would be interested in the "why?".

You cannot use two drivers at once.  Either use the kernel driver (which 
does KMS), or ati-drivers.  You cannot mix drivers.  Not in Linux, and 
not in any other OS I'm aware of.