Multi gpu display

[zhoucm1]

On 2017年07月04日 13:34, Alex Deucher wrote:
> On Tue, Jul 4, 2017 at 1:22 AM, zhoucm1 <david1.zhou at amd.com> wrote:
>>
>> On 2017年07月04日 11:41, Alex Deucher wrote:
>>> On Mon, Jul 3, 2017 at 4:32 AM, zhoucm1 <david1.zhou at amd.com> wrote:
>>>> Hi xorg-devel guys,
>>>>
>>>> Anyone can help me?
>>>>
>>>> I tried two gpu card with four monitors on Unbuntu 16.04, each gpu has
>>>> two
>>>> monitors.
>>>> By default config, I can see four monitors all are lighting with its
>>>> separate desktop instance, and the running application with small window
>>>> can
>>>> be spanning all monitors, but if application only can be run on one of
>>>> monitros with fullscreen setting. I attached Xorg log and xrandr output
>>>> info.
>>>>
>>>> How should I configure if I want to all monitors as a big desktop or the
>>>> full screen application can run on all monitors? or How should I
>>>> do/change?
>>> You'd need to configure it in the window manager.  Most window
>>> managers use the geometry info advertised via randr to define what is
>>> considered full screen.  You need to tell it to ignore that and just
>>> use the full surface size.  How to do that varies from window manager
>>> to window manager.
>> Thanks Alex for input.
>> I'm using ubuntu16.04, which window manager should be compiz, how to tell it
>> to ignore that and just use the full surface size.
> https://askubuntu.com/questions/73573/how-to-maximise-a-window-across-two-monitors
That's great, it solves my problem, otherwise I'm going to add an 
extention for xinerama.

Thanks a lot.
David Zhou
> Also, looks like wmctrl works as well.
>
> Alex
>
>> Regards,
>> David Zhou
>>>
>>> Alex
>>