On Fri, Jun 23, 2023 at 2:39 PM Manuel Wagesreither <man...@fastmail.fm> wrote: > > Hi users of meta-raspberrypi, > > I'd like to ask around if for you people vc4-kms-v3d (opposed to > vc4-fkms-v3d) *really* is the working way to get vc4 support on a Raspberry > Pi 4 Model B. > > Both on master and kirkstone, vc4-kms-v3d is the default. It's defined in > /conf/machine/raspberrypi4-64.conf: > > VC4DTBO ?= "vc4-kms-v3d" > > I was mildly surprised to find this, because on my system (running Kirkstone) > I can get the screen to work only if I specify vc4-fkms-v3d. > > Commit a6fa6b3aec36b92c3750852dd6788af9d2ce08f6 [1] broke my build. The > commit message further suggests that vc4-Fkms-v3d is broken, while > vc4-kms-v3d is not. So I'm wondering:hy is it exactly the other way round on > my machine? > > raspberrypi4: Use full kms (vc4-kms-v3d) DT overlay > > With latest 5.10 kernel fkms version fails to bring up VC4 and we do not > get dri device initialized ( /dev/dri ) is empty, which means we can not > launch wayland componsitors. >
We have moved away from 5.10 kernel to 5.15 and then 6.1, so its possible that fkms is working fine again. If you test it with both vc4graphics and userland graphics do both work ? > Best regards, > Manuel > > >
-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#60422): https://lists.yoctoproject.org/g/yocto/message/60422 Mute This Topic: https://lists.yoctoproject.org/mt/99727959/21656 Group Owner: yocto+ow...@lists.yoctoproject.org Unsubscribe: https://lists.yoctoproject.org/g/yocto/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
