@p-pisati: as mentioned earlier, with pi-kernel rev 21 the splash support worked with dtoverlay line present, which does not anymore - meaning it's a regression. It's also quite a visible regression, since that's the first thing Ubuntu Core pi users see when they boot the device. This might be a 'release critical' regression for 18.04.3, which is planned to be released on the 1st of August. As mentioned by Olivier and Dave, removal of the dtoverlay line does not seem to be a feasible option as of now. And besides, as mentioned, the pi-kernel snap regressed by breaking something that worked fine previously.
Can we identify which modules from the list that Dave presented in comment #5 (which were present in rev 21 but are no longer in 42) would be required and get them back into the initrd? Could we revert the change that removed all those (possibly unneeded) modules from the initrd at least until we know nothing regresses? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-raspi2 in Ubuntu. https://bugs.launchpad.net/bugs/1837209 Title: Splash screen fails to display on recent pi core18 images Status in Snappy: New Status in linux-raspi2 package in Ubuntu: New Bug description: The current core18 image [1] for the raspberry pi fails to display the "Core" splash screen on boot. This is because psplash fails to open the /dev/fb0 framebuffer device, because it doesn't exist. This appears to be due to a lack of supporting kernel modules in the initrd.img (fb_sys_fops, drm, vc4, etc.) which were formerly present but are missing from the version I'm testing (pi-kernel 4.15.0-1041.44, snap rev 42). Steps to reproduce: * Flash the image to a uSD card and boot the pi with it (preferably with a serial console attached). * Note screen remains black instead of displaying the familiar "Core" text under an Ubuntu logo. * If serial console is attached, note "Error opening /dev/fb0" in the output shortly after u-boot starts the kernel; this is output from psplash failing [1] http://cdimage.ubuntu.com/ubuntu-core/18/current/ubuntu- core-18-armhf+raspi3.img.xz To manage notifications about this bug go to: https://bugs.launchpad.net/snappy/+bug/1837209/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
