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: Tue, 17 Aug 2021 20:10:14 +0200 [thread overview]
Message-ID: <20210817201014.235cf403@gmx.net> (raw)
In-Reply-To: <SJ0PR08MB6542DE17A6C96CC4B1B9A6A5B8FE9@SJ0PR08MB6542.namprd08.prod.outlook.com>
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://github.com/raspberrypi/firmware/blob/master/boot/overlays/README
>
> Thanks,
> Scott
>
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next prev parent reply other threads:[~2021-08-17 18:10 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 [this message]
2021-08-17 18:59 ` Scott Bartolett
2021-08-18 13:08 ` Scott Bartolett
2021-08-18 16:11 ` Peter Seiderer
[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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