** Description changed: + [ Impact ] + + The desktop does not come up and the screen stays blank when using + 'dtoverlay=vc4-kms-v3d' on a Pi 4 (as is the case in raspi desktop + images). If the desktop does come up, playing video freezes the desktop + and/or the system. The kernel log shows loads of WARNINGs and + potentially firmware errors. + + [ Test Case ] + + Use a raspi desktop image, play video (youtube or VLC), move windows + around, switch to and from fullscreen video playback. + + [ Where problems could occur ] + + The fixes are all local to the VC4 driver so (new) issues should only + show up when that driver is in use. Potential problems are UI freezes, + kernel stalls and crashes. + + [ Original Description ] + Workaround ---------- With media which you will boot off of change the line dtoverlay=vc4-kms-v3d to dtoverlay=vc4-fkms-v3d in /system-boot/config.txt Original Description -------------------- Have a HDMI display w/o audio hooked up to this RPI4B. With the latest kernel update the screen does not turn on due to this. ProblemType: BugDistroRelease: Ubuntu 21.10 Package: linux-image-5.13.0-1007-raspi 5.13.0-1007.8 ProcVersionSignature: Ubuntu 5.13.0-1007.8-raspi 5.13.13 Uname: Linux 5.13.0-1007-raspi aarch64 ApportVersion: 2.20.11-0ubuntu69 Architecture: arm64 CasperMD5CheckResult: unknown Date: Mon Sep 20 20:56:14 2021 ImageMediaBuild: 20210421 ProcEnviron: SHELL=/bin/bash LANG=en_US.UTF-8 TERM=vt100 XDG_RUNTIME_DIR=<set> PATH=(custom, user)SourcePackage: linux-raspi UpgradeStatus: Upgraded to impish on 2021-08-17 (34 days ago)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1944397 Title: HDMI does not display anything with Impish RPi desktop image To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware-raspi2/+bug/1944397/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
