Multi gpu display

[zhoucm1]

On 2017年07月06日 00:15, Alex Deucher wrote:
> On Tue, Jul 4, 2017 at 6:26 AM, zhoucm1 <david1.zhou at amd.com> wrote:
>>
>> On 2017年07月04日 13:43, zhoucm1 wrote:
>>>
>>>
>>> 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
>> Could you also tell me how to set it for Redhat7.3?
> I'm not sure.  Probably some setting in gnome shell.  wmctrl -e might
> do what you want.
Unfortunately, it doesn't combine all desktop to one big desktop.

-e option is to resize the window on one desktop, no effect for desktop.

I also tried to specify application with it:  wmctrl -r "glxgears" -e 
0,0,0,115200,2160, it has no effect as well.

Thanks anyway,
David Zhou
>
> Alex
>
>> Thanks,
>> David Zhou
>>
>>> 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
>>>>>