[Clug-tech] problem with lagging effects in xorg

[Greg R. Smith]

On 10-05-27 05:26 PM, Gustin Johnson wrote:
> On 10-05-27 05:10 PM, Greg R. Smith wrote:
>    
>> On 10-05-27 04:54 PM, Gustin Johnson wrote:
>>      
>>> On 10-05-27 02:37 PM, Greg R. Smith wrote:
>>>
>>>        
>>>> Hi,
>>>>
>>>> I've done a bit of research into this - I have a laptop with a mobility
>>>> HD5870 and when I got it, I thought "wooo, everything should be soo
>>>> fast",
>>>> most things are fast, however with composite enabled the effects cause
>>>> CPU spikes.
>>>>
>>>> This is documented, and there are some fixes out there for it, as it
>>>> effects
>>>> many, many, video cards. Does anyone have any experience with this?
>>>> every fix that I've tried has caused my xorg to become unresponsive on
>>>>    startup such that I have to boot to single user mode to revert the
>>>> changes.
>>>> (I can't event ctl-alt out of it.). I think the patch is called the
>>>> "backclear" patch.
>>>>
>>>>
>>>>          
>>> Are you using the radeonhd driver?
>>>
>>>
>>>        
>> I do not believe that it is supported, or I couldn't find any reference
>> to it being supported.
>>
>> I am using the ATI Catalyst driver.
>>
>>      
> Ungh, the Catalyst drivers are nothing short of terrible.  If your
> hardware sports the HD moniker then it should be supported by the
> radeonhd driver.  The Catalyst drivers support both the more recent
> HDxxxx hardware and the previous generation, the radeonhd driver only
> supports the more recent hardware.
>
> The radeonhd driver is open (ATI hired Novel to write it) so it should
> be an apt-get/yast/yum install away and no need to compile 3rd party
> kernel modules.
>
>    
>    

Interesting,

I actually just was googling to see if there was anyone who had tried it,
I found that a newer version of the catalyst had been release YESTERDAY.

I just installed it and enabled the direct2d acceleration, and it 
actually seems to be working a lot better.

just an FYI.

I will still try to get the radeonhd driver working, to compare.

--Greg