[Buildroot] the problem with Xorg, QT5 and imx vivant dirver

Zhaozhou Meng mengzhaozhou at gmail.com
Wed Aug 3 15:42:55 UTC 2016


Thanks for the infomations that help me a lot.

Not really for using the QT eglfs under X11.
I know it will override the X11 if I do that, the elgfs is setted
fullscreen display, beside that, is there other reason that I wouldn't be
able to use it ?


Regards,
Zhaozhou

2016-08-03 14:57 GMT+02:00 Gary Bisson <gary.bisson at boundarydevices.com>:

> Hi all,
>
> On Wed, Aug 3, 2016 at 11:53 AM, Thomas Petazzoni
> <thomas.petazzoni at free-electrons.com> wrote:
> > <snip>
> >> But I changed the option to this:
> >> Xorg X Window Sytem -> X11R7 Drivers -> x86-video-imx-viv (with Mesa3D
> >> selected automatic)
> >> Freescale imx libraries -> imx-gpu-viv -> output option -> X11
> >> QT5 -> OpenGL API -> OpenGL ES 2.0 +
> >> QT5 -> Xorg XCB support
> >> QT5-> eglfs support
> >>
> >> With this option, I have the problem with QT Widget during the building.
> >>
> >> I attache the config file and the infomations about build.
> >
> > I'll fire up a build and see what happens. Gary, do you have an idea?
>
> Yes I confirm it is not working. It has been reported by Antoine
> Ténart in the past, see this thread:
> http://lists.busybox.net/pipermail/buildroot/2016-March/154974.html
>
> At the end of the thread, two solutions were offered, none has been chosen
> yet.
>
> But as a summary, even if fixing the eglfs build can be done, at
> runtime you wouldn't be able to use it while X11 is running. Is this
> really what you want to do?
>
> In Yocto, my understanding is that they force the '-no-eglfs'
> configuration when X11 is enabled:
>
> https://github.com/Freescale/meta-fsl-arm/blob/master/qt5-layer/recipes-qt/qt5/qtbase_%25.bbappend#L12
>
> Regards,
> Gary
>
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