From: Peter Seiderer <ps.report@gmx.net>
To: Scott Bartolett <SBartolett@thorlabs.com>
Cc: "buildroot@busybox.net" <buildroot@busybox.net>
Subject: Re: [Buildroot] EGLFS Could Not Find DRM Device!
Date: Wed, 18 Aug 2021 18:11:26 +0200 [thread overview]
Message-ID: <20210818181126.38fe82d9@gmx.net> (raw)
In-Reply-To: <SJ0PR08MB6542F7DD403856DB9A0CDA0CB8FF9@SJ0PR08MB6542.namprd08.prod.outlook.com>
Hello Scott,
On Wed, 18 Aug 2021 13:08:28 +0000, Scott Bartolett <SBartolett@thorlabs.com> wrote:
> Hi Peter,
>
> On a raspbian install I find the file vc4-kms-v3d.dtbo. However on the buildroot install, I do not find any files that match vc4-kms-v3d*. I've searched for and enabled additional items in the buildroot config that might be related, but nothing has helped yet.
The buildroot config option is name BR2_PACKAGE_RPI_FIRMWARE_INSTALL_DTB_OVERLAYS,
do not forget to do a full re-build of the rpi-firmware package after enabling...
For inclusion of the overlay files to the target/SD-card boot/first partition
check/add the 'rpi-firmware/overlays' entry in the genimage file (see e.g.
board/raspberrypi3/genimage-raspberrypi3.cfg for an example)...
Regards,
Peter
>
> Thanks,
> Scott
>
>
> -----Original Message-----
> From: Peter Seiderer [mailto:ps.report@gmx.net]
> Sent: Tuesday, August 17, 2021 2:10 PM
> To: Scott Bartolett <SBartolett@thorlabs.com>
> Cc: buildroot@busybox.net
> Subject: Re: [Buildroot] EGLFS Could Not Find DRM Device!
>
> Hello Scott,
>
> On Tue, 17 Aug 2021 17:47:49 +0000, Scott Bartolett <SBartolett@thorlabs.com> wrote:
>
> > Hi all,
> >
> > I'm trying to run a Qt5 application on a Raspberry Pi running buildroot. The application runs fine when I use the platform plugin linuxfb. But when I try to use eglfs I'm getting the error that the DRM Device is not found. I see this error message mentioned often when doing a search, but so far have not found any solution that works for me. I've selected:
> > BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_V3D
> > BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_VC4
> > BR2_PACKAGE_MESA3D_GALLIUM_DRIVER_KMSRO
> > BR2_PACKAGE_MESA3D_OPENGL_ES
> > BR2_PACKAGE_QT5BASE_OPENGL_ES2
> > BR2_PACKAGE_QT5BASE_EGLFS
> >
> > Does anyone have any suggestions?
>
> Edit the config.txt file on the first/boot partition on the SD card and add (for RPi4):
>
> dtoverlay=vc4-kms-v3d-pi4
>
> or (for Rpi3,...):
>
> dtoverlay=vc4-kms-v3d
>
> See [1] for details...
>
> Regards,
> Peter
>
> [1] https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fraspberrypi%2Ffirmware%2Fblob%2Fmaster%2Fboot%2Foverlays%2FREADME&data=04%7C01%7CSBartolett%40thorlabs.com%7C919da371d81c4cb2c6b308d961aa4771%7C411510044224448aa787d4279c1f087d%7C0%7C0%7C637648206254285944%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=QZiffVLIgJEx40pM6%2BtT7y9teGDYDYaqrl8T%2Fz861rM%3D&reserved=0
>
> >
> > Thanks,
> > Scott
> >
>
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next prev parent reply other threads:[~2021-08-18 16:11 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-17 17:47 [Buildroot] EGLFS Could Not Find DRM Device! Scott Bartolett
2021-08-17 18:10 ` Peter Seiderer
2021-08-17 18:59 ` Scott Bartolett
2021-08-18 13:08 ` Scott Bartolett
2021-08-18 16:11 ` Peter Seiderer [this message]
[not found] ` <SJ0PR08MB6542F033192E0D422DEE4FDDB8FF9@SJ0PR08MB6542.namprd08.prod.outlook.com>
2021-08-18 21:11 ` Peter Seiderer
[not found] ` <SJ0PR08MB6542F6819B55EBB098177E0FB8C09@SJ0PR08MB6542.namprd08.prod.outlook.com>
2021-08-19 18:17 ` Peter Seiderer
-- strict thread matches above, loose matches on Subject: below --
2021-08-29 3:03 Charles Steinkuehler
2021-08-29 15:28 ` Charles Steinkuehler
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