(Crowd funded) fix for SiS 671/771 video cards

[Pander]

> On 7 May 2013 14:04, Pander <pander at users.sourceforge.net> wrote:
>
> The sis671 driver:
>> # xorg.conf (X.Org X Window System server configuration file)
> ...
>> Section "Device"
>>         Identifier      "Configured Video Device"
>>         Driver          "sis671"
>>         Option          "NoAccel"       "true"
>> EndSection
> ...
>
> doesn't seem to be a proper module:
>> http://pastebin.com/fwXeTCq1
> ...
> [ 12247.125] (II) LoadModule: "sis671"
> [ 12247.125] (II) Loading /usr/lib/xorg/modules/drivers/sis671_drv.so
> [ 12247.125] (EE) LoadModule: Module sis671 does not have a
> sis671ModuleData data object.
> [ 12247.125] (II) UnloadModule: "sis671"
> [ 12247.125] (II) Unloading sis671
> [ 12247.125] (EE) Failed to load module "sis671" (invalid module, 0)
> ...

It used to be a properly working module. See
https://bugs.launchpad.net/linuxmint/+bug/301958/comments/202 on support
for XAA acceleration needed for this driver.

>
> Then it tries the other sis driver:
> ...
> [ 12247.125] (II) LoadModule: "sis"
> [ 12247.125] (II) Loading /usr/lib/xorg/modules/drivers/sis_drv.so
> ...
> This one looks like it doesn't support your card. (No 671 listed in
> within the supported chipsets.)
>
>> from and
>> http://ajoliveira.com/ajoliveira/gen/bin/sis_driver_64-bit_12.04.tar.gz
>> on
>> Ubuntu 13.04
> (Haven't had time to look into this.)
>
> Cheers, Daniel
>