Re: [Qemu-devel] [PATCH 22/23] gtk: show a window for each graphical QemuConsole

[Peter Maydell]

On 21 March 2013 08:51, Gerd Hoffmann <address@hidden> wrote:
> On 03/21/13 08:52, Gerd Hoffmann wrote:
>> On 03/20/13 21:06, Peter Maydell wrote:
>>> On 20 March 2013 09:43, Gerd Hoffmann <address@hidden> wrote:
>>>> Multihead support:  For each graphical console we'll create a gtk
>>>> window, so with multiple graphics cards installed you get a gtk window
>>>> for each.  vte tabs are attached to the console #0 window.
>>>
>>> So is this going to mean arm's vexpress-a9 gets a pointless
>>> new second window? [there are two display devices in it].
>>
>> I don't think so, given that multiple graphical consoles are not really
>> supported by qemu today.
>>
>> Basically you get one window per graphical_console_init().
>
> Ahem, well, there is a second window now.

Thought there might be :-)

>>> If so, we're going to need to model what the hardware actually
>>> does, which is that there's a single connection on the back
>>> of the box for a monitor, and it's guest software controllable
>>> which of the two display devices is routed to the connection...
>>
>> How does this work in 1.4?
>
> I guess the second display device was never ever shown anywhere?

Correct. We rely on "last display device wins" plus the fact this
happens to match up with the device Linux chooses for display.
This is obviously not great but up til now QEMU hasn't actually
supported multiple display devices so I haven't worried about it.

-- PMM