Multi gpu display

[zhoucm1]

On 2017年07月06日 10:30, zhoucm1 wrote:
>
>
> 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.
Hi Alex,

 From wmctrl -m, I can see Redhat7.3 is using 'gnome shell' as its 
window manager, I searched from google and realize many people are 
asking the same question, but all no right answer for Redhat.

Do you know any guys from Redhat company can help this question?

Thanks,
David Zhou
>
> 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
>>>>>>
>