From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Seiderer Date: Tue, 4 Feb 2020 15:57:15 +0100 Subject: [Buildroot] Requirements for QML in RPi4 In-Reply-To: <20200128083824.52d81ada@gmx.net> References: <20200127164125.1ec2b7ff@gmx.net> <20200128083824.52d81ada@gmx.net> Message-ID: <20200204155715.356fcf69@gmx.net> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Hello Andrea, On Tue, 28 Jan 2020 08:38:24 +0100, Peter Seiderer wrote: > Hello Andrea, > > please keep buildroot at busybox.net on CC > > On Mon, 27 Jan 2020 21:11:21 +0100, Andrea Simeoni wrote: > > > I rebuilt the image with the attached config file. > > Now I don't get the error about DRM but... nothing happens. I run a QML > > application (the default example) but on the screen I can still read the > > console output. > > Thats bad....and sorry no more help from my side as I have not (yet) an > RPi4 hardware to test myself ;-) Update on this one, successful RPi4 64bit with Qt/Qml application run using the following patches and 'dtoverlay=vc4-fkms-v3d', see [1], [2], [3]... Regards, Peter [1] http://lists.busybox.net/pipermail/buildroot/2020-February/273163.html [2] https://patchwork.ozlabs.org/patch/1233373 [3] https://patchwork.ozlabs.org/patch/1233372 > > Regards, > Peter > > > > > Here the modules loaded: > > > > # lsmod > > Module Size Used by > > evdev 24576 1 > > joydev 20480 0 > > brcmfmac 315392 0 > > brcmutil 16384 1 brcmfmac > > sha256_generic 20480 0 > > bcm2835_codec 36864 0 > > bcm2835_v4l2 45056 0 > > v4l2_mem2mem 24576 1 bcm2835_codec > > cfg80211 610304 1 brcmfmac > > bcm2835_mmal_vchiq 32768 2 bcm2835_codec,bcm2835_v4l2 > > raspberrypi_hwmon 16384 0 > > hwmon 16384 1 raspberrypi_hwmon > > videobuf2_dma_contig 20480 1 bcm2835_codec > > rfkill 28672 1 cfg80211 > > v4l2_common 16384 1 bcm2835_v4l2 > > videobuf2_vmalloc 16384 1 bcm2835_v4l2 > > videobuf2_memops 16384 2 videobuf2_dma_contig,videobuf2_vmalloc > > videobuf2_v4l2 24576 3 bcm2835_codec,bcm2835_v4l2,v4l2_mem2mem > > videobuf2_common 45056 4 > > bcm2835_codec,bcm2835_v4l2,v4l2_mem2mem,videobuf2_v4l2 > > videodev 200704 6 > > bcm2835_codec,v4l2_common,videobuf2_common,bcm2835_v4l2,v4l2_mem2mem,videobuf2_v4l2 > > media 36864 3 bcm2835_codec,videodev,v4l2_mem2mem > > vc_sm_cma 36864 1 bcm2835_mmal_vchiq > > rpivid_mem 16384 0 > > fixed 16384 0 > > rpi_ft5406 16384 0 > > rpi_backlight 16384 0 > > uio_pdrv_genirq 16384 0 > > uio 20480 1 uio_pdrv_genirq > > sch_fq_codel 20480 6 > > ipv6 458752 24 > > > > > > Il giorno lun 27 gen 2020 alle ore 17:38 Andrea Simeoni < > > andreasimeoni73 at gmail.com> ha scritto: > > > > > > > > You seem to have a RPi4-64bit config, trying to run > > >> mesa vc4? > > >> > > > > > > IIRC it was needed to get accelerated GPU. > > > > > > > > > > > >> dtoverlay=vc4-fkms-v3d > > >> > > > > > > Unfortunately it doesn't work. I read the links, and the situation seems a > > > bit confusing. > > > > > > > > > Alternatively your can try RPi4-32bit and enable > > >> rpi-userland/BR2_PACKAGE_RPI_USERLAND > > >> instead of mesa... > > >> > > > > > > I don't need 64-bit but I need QML+GPU. I'm going to try RPi4+32bit w/ > > > userland. > > > I hope it will works! I will report the results. > > > > > > > > _______________________________________________ > buildroot mailing list > buildroot at busybox.net > http://lists.busybox.net/mailman/listinfo/buildroot