Multi gpu display

[Alex Deucher]

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.

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
>>>>
>>>>
>>
>