[Buildroot] qt5 "Could not find DRM device"

[Buildroot] qt5 "Could not find DRM device"

[manu f]

Hello all,

I build a kernel for imx6 board. imx6 boot correctly, but  I got this
error  "Could not find DRM device" when I try to launch a qt web browser (
this app working on an other context).

I search google and mailing list. I find something about qt5 configuration
and -device flag..
Could I have some help about ?

(qt app depend on qt5 webengine, so I set mesa3d and perhaps I made a
mistake when setting drivers, because I use direct frame buffer.. perhaps I
forgot something)

Regards.

Emmanuel

(you will find here my .config.)
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[Buildroot] qt5 "Could not find DRM device"

[Fabio Estevam]

Hi Emmanuel,

On Sun, Jan 31, 2021 at 3:15 PM manu f <e.fiancette@gmail.com> wrote:
>
> Hello all,
>
> I build a kernel for imx6 board. imx6 boot correctly, but  I got this error  "Could not find DRM device" when I try to launch a qt web browser ( this app working on an other context).
>
> I search google and mailing list. I find something about qt5 configuration and -device flag..
> Could I have some help about ?
>
> (qt app depend on qt5 webengine, so I set mesa3d and perhaps I made a mistake when setting drivers, because I use direct frame buffer.. perhaps I forgot something)

I suggest you take a look at configs/imx6-sabresd_qt5_defconfig. This
target uses the mainline kernel and the Etnaviv stack.

[Buildroot] qt5 "Could not find DRM device"

[Peter Seiderer]

Hello Emmanuel,

On Sun, 31 Jan 2021 16:03:57 -0300, Fabio Estevam <festevam@gmail.com> wrote:

> Hi Emmanuel,
> 
> On Sun, Jan 31, 2021 at 3:15 PM manu f <e.fiancette@gmail.com> wrote:
> >
> > Hello all,
> >
> > I build a kernel for imx6 board. imx6 boot correctly, but  I got this error  "Could not find DRM device" when I try to launch a qt web browser ( this app working on an other context).
> >
> > I search google and mailing list. I find something about qt5 configuration and -device flag..
> > Could I have some help about ?
> >
> > (qt app depend on qt5 webengine, so I set mesa3d and perhaps I made a mistake when setting drivers, because I use direct frame buffer.. perhaps I forgot something)  
> 
> I suggest you take a look at configs/imx6-sabresd_qt5_defconfig. This
> target uses the mainline kernel and the Etnaviv stack.

Think this points to your problem, you must decide between mainline/actual kernel using
mesa3d/etnaviv configuration or freescale/nxp kernel using the vivante graphics stack...

From your provided config it is hard to judge which way your try...some etnaviv
options enabled some IMX/Vivante ones enabled... but the main point is
the selected kernel and kernel options, but your config points to private repo and
private config...., but from the selected/used kernel header version (4.9) I would
suspect an freescale/nxp kernel?

Regards,
Peter

> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

[Buildroot] qt5 "Could not find DRM device"

[manu f]

You are right Peter, and now I understand my mistake!
Effectively the kernel is a freescale/nxp Kernel.
So I modify my config, disable mesa3d and use the kernel-module-imx-gpu-viv
and imx gpu viv with framebuffer.
This morning at wake up I just had time to see that the could not find drm
desapear, but i didn't had time to check more.
I put here my new config and will report next any success or not !

;-) thanks

Le dim. 31 janv. 2021 ? 21:16, Peter Seiderer <ps.report@gmx.net> a ?crit :

> Hello Emmanuel,
>
> On Sun, 31 Jan 2021 16:03:57 -0300, Fabio Estevam <festevam@gmail.com>
> wrote:
>
> > Hi Emmanuel,
> >
> > On Sun, Jan 31, 2021 at 3:15 PM manu f <e.fiancette@gmail.com> wrote:
> > >
> > > Hello all,
> > >
> > > I build a kernel for imx6 board. imx6 boot correctly, but  I got this
> error  "Could not find DRM device" when I try to launch a qt web browser (
> this app working on an other context).
> > >
> > > I search google and mailing list. I find something about qt5
> configuration and -device flag..
> > > Could I have some help about ?
> > >
> > > (qt app depend on qt5 webengine, so I set mesa3d and perhaps I made a
> mistake when setting drivers, because I use direct frame buffer.. perhaps I
> forgot something)
> >
> > I suggest you take a look at configs/imx6-sabresd_qt5_defconfig. This
> > target uses the mainline kernel and the Etnaviv stack.
>
> Think this points to your problem, you must decide between mainline/actual
> kernel using
> mesa3d/etnaviv configuration or freescale/nxp kernel using the vivante
> graphics stack...
>
> From your provided config it is hard to judge which way your try...some
> etnaviv
> options enabled some IMX/Vivante ones enabled... but the main point is
> the selected kernel and kernel options, but your config points to private
> repo and
> private config...., but from the selected/used kernel header version (4.9)
> I would
> suspect an freescale/nxp kernel?
>
> Regards,
> Peter
>
> > _______________________________________________
> > buildroot mailing list
> > buildroot at busybox.net
> > http://lists.busybox.net/mailman/listinfo/buildroot
>
>
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