Choose video driver

[menos16]

Hello again people,

One quick and simple question, I've been looking for many times what is the video driver for my system (mele a20 running
armv7h kernel)... but still I didn't found what or how should I use...

Firstly my Xorg driver didn't start with the error "FBIOPUT_VSCREENINFO: Invalid argument" with the fbturbo driver.
after the change of kernel branch "linux-sun4i" to " linux-armv7", that seems more updated than sun4i, the xorg server and desktop began to work ... but they are not working properly because the video driver isn't compiled with the correct dependencies. the result is a very poor performance the xorg.log like shows :

$this->bbcode_second_pass_code('', '442964.688] (EE) FBTURBO(0): FBIOBLANK: Invalid argument
[442964.717] (II) FBTURBO(0): using backing store heuristics
[442964.897] (II) FBTURBO(0): [b]can't load 'g2d_23' kernel module[/b]
[442964.898] (II) FBTURBO(0): failed to enable the use of sunxi display controller
[442964.898] (II) FBTURBO(0): No sunxi-g2d hardware detected (check /dev/disp and /dev/g2d)
[442964.898] (II) FBTURBO(0): G2D hardware acceleration can't be enabled
[442964.898] (II) FBTURBO(0): enabled VFP/NEON optimizations
[442964.898] (==) FBTURBO(0): Backing store enabled
[442964.958] (==) FBTURBO(0): DPMS enabled
[442964.958] (II) FBTURBO(0): failed to enable hardware cursor
[442964.958] (II) FBTURBO(0): no 3D acceleration because the driver has been compiled without libUMP
[442964.958] (II) FBTURBO(0): if this is wrong and needs to be fixed, please check ./configure log
')

like I've been loking for gooogle, the message "can't load 'g2d_23' kernel module" isn't the real problem, only spam from xorg server. I think that the real problem is the message about libUMP but I have correctly installed, the "libump 20130204-1" package from yaourt

I ve try to compile and install manually the fbturbo video driver from this post http://archlinuxarm.org/forum/viewtopic.php?f=33&t=5979 but without success and the result is always the same, my video driver it's compiled without UMP support....

should I use a different video driver? I'm not sure about fbturbo, but in this forum, and others, seems to be the correct por A10 SoC
should I compile again fbturbo? I'm not sure if the post about compiling manually fbturbo is previous to the package available in repos, but I think so.
Is not possible to use the hardware accelerated at this moment ? I understand that yes, using a mali from android system...

So, I'm confused, what , and how to use, the correct video driver for this system,

Regard and thanks for your time

Edit, I also have this other problem, but i'm sure that they are not related, because the video driver issue is earlier
viewtopic.php?f=23&t=8840

[menos16]

hmm, I suppose that the question was not correctly write or in wrong place .... I will try ti search again

Thanks people.