Nouveau driver is slow in Fedora 21

[poma]

On 06.01.2015 09:49, Bruno Wolff III wrote:
> On Tue, Jan 06, 2015 at 09:24:04 +0100,
>   poma <pomidorabelisima at gmail.com> wrote:
>> On 06.01.2015 07:24, Bruno Wolff III wrote:
>>
>>> The 3.19 kernel has some Nouveau fixes and is probably worth a quick try.
>>
>> What particular changes are those?
> 
> There are lots of changes in 3.19 (and 3.18 for that matter). I didn't 
> see a particular one that might fix his problem, but a relatively quick 
> check against the latest code is often worthwhile. 3.19 did fix one issue 
> I was having with a program locking up in wine in one place (though not 
> everywhere).


Other than these exception:
nouveau E[vlc[391]] push 0 buffer not in list
traps: vlc[393] general protection ip:7fee42409adf sp:7fee3b107808 error:0 in libdrm_nouveau.so.2.0.0[7fee42407000+6000]

$ rpm -qf /usr/lib64/libdrm_nouveau.so.2.0.0
libdrm-2.4.58-3.fc21.x86_64

3.17.7-300.fc21.x86_64
&
3.18.1-2.fc21.x86_64
run here OK.