Public bug reported: I tried the plymouth-theme-spinner package to test the flicker free vendor logo boot process. When shutting down the machine, everything works as expected. On my XPS 9380 system, the Dell logo is displayed and the white spinner spins until the machine shuts down.
At boot, the Dell logo is shown by the UEFI firmware, then grub switches immediatly (without timeout) to the linux kernel. Then Plymouth blanks the screen and leaves an empty black screen until the graphical session starts (Wayland or Xorg, it does not matter). Here is the relevant portion of the plymouth debug log: --- 00:00:03.245 ./plugin.c:934:create_plugin : Using '/usr/share/plymouth/themes/spinner' as working directory ... 00:00:03.246 main.c:1718:load_theme : attaching plugin to event loop 00:00:03.246 main.c:1721:load_theme : attaching progress to plugin 00:00:03.246 ply-boot-splash.c:138:ply_boot_splash_add_pixel_display : adding 1920x1080 pixel display 00:00:03.246 ./plugin.c:1480:add_pixel_display : adding pixel display to plugin 00:00:03.246 ply-device-manager.c:1029:ply_device_manager_activate_renderer: activating renderers 00:00:03.246 ply-boot-splash.c:486:ply_boot_splash_show : showing splash screen 00:00:03.246 ./plugin.c:1538:show_splash_screen : loading lock image 00:00:03.246 ply-boot-splash.c:492:ply_boot_splash_show : can't show splash: No such file or directory 00:00:03.246 ply-boot-splash.c:390:ply_boot_splash_free : freeing splash 00:00:03.246 main.c:489:show_default_splash : Could not start default splash screen,showing text splash screen --- note that i uninstalled plymouth-text. If it is installed then the dummy plymouth text is shown instead of the spinner one. My hypothesis is the following : - the bgrt theme contains in its theme file : ImageDir=/usr/share/plymouth/themes/spinner - the initramfs hook for plymouth only copies the theme directory (bgrt) not the one referenced in the theme file. I checked it using lsinitramfs on the newly generated initramfs image. - At boot, when plymouth tries to find files under /usr/share/plymouth/themes/spinner, my real root is not mounted yet, plymouth cannot find the files and bails. If I modify the bgrt theme as follows: - change the line ImageDir to reference ImageDir=/usr/share/plymouth/themes/bgrt - copy all the image files from the spinner directory to the bgrt directory - regenerates the initramfs Then plymouth works as expected, I have the Dell logo and spinner at boot, or the resume message when exiting from hibernate [*]. I have a ZFS root partition on an nvme disk (might explain why my root partition is not up at that time ?). [*] Small caveat, on my system it seems there is a mode change after the kernel boot and while plymouth starts, hence my boot is not "flicker free" but this seems like a driver related issue. ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: plymouth-theme-spinner 0.9.4git20190712-0ubuntu4.1 ProcVersionSignature: Ubuntu 5.3.0-25.27-generic 5.3.13 Uname: Linux 5.3.0-25-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu8.3 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CurrentDesktop: ubuntu:GNOME Date: Tue Dec 17 14:49:09 2019 DefaultPlymouth: /usr/share/plymouth/themes/bgrt/bgrt.plymouth EcryptfsInUse: Yes InstallationDate: Installed on 2019-10-19 (58 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) MachineType: Dell Inc. XPS 13 9380 ProcCmdLine: BOOT_IMAGE=/BOOT/ubuntu_5to4s3@/vmlinuz-5.3.0-25-generic root=ZFS=rpool/ROOT/ubuntu_5to4s3 ro plymouth:debug resume=UUID=136e5fef-7afe-4cb4-a996-e2d01f197738 quiet splash vt.handoff=1 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/BOOT/ubuntu_5to4s3@/vmlinuz-5.3.0-25-generic root=ZFS=rpool/ROOT/ubuntu_5to4s3 ro plymouth:debug resume=UUID=136e5fef-7afe-4cb4-a996-e2d01f197738 quiet splash vt.handoff=1 SourcePackage: plymouth UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/01/2019 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.8.0 dmi.board.name: 0KTW76 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.8.0:bd10/01/2019:svnDellInc.:pnXPS139380:pvr:rvnDellInc.:rn0KTW76:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: XPS dmi.product.name: XPS 13 9380 dmi.product.sku: 08AF dmi.sys.vendor: Dell Inc. ** Affects: plymouth (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug eoan package-from-proposed wayland-session ** Description changed: I tried the plymouth-theme-spinner package to test the flicker free vendor logo boot process. - When shutting down the machine, everything works as expected. On my XPS 9380 system, the DELL shows and the white spinner spins until the machine shuts down. + When shutting down the machine, everything works as expected. On my XPS 9380 system, the Dell logo is displayed and the white spinner spins until the machine shuts down. - At boot, the Dell logo is shown by the UEFI firmware then grub switches - immediatly (without timeout) the linux kernel. Then Plymouth blanks the - screen leaves an empty black screen until the graphical session starts. + At boot, the Dell logo is shown by the UEFI firmware, then grub switches + immediatly (without timeout) to the linux kernel. Then Plymouth blanks + the screen and leaves an empty black screen until the graphical session + starts (Wayland or Xorg, it does not matter). Here is the relevant portion of the plymouth debug log: --- 00:00:03.245 ./plugin.c:934:create_plugin : Using '/usr/share/plymouth/themes/spinner' as working directory ... 00:00:03.246 main.c:1718:load_theme : attaching plugin to event loop 00:00:03.246 main.c:1721:load_theme : attaching progress to plugin 00:00:03.246 ply-boot-splash.c:138:ply_boot_splash_add_pixel_display : adding 1920x1080 pixel display 00:00:03.246 ./plugin.c:1480:add_pixel_display : adding pixel display to plugin 00:00:03.246 ply-device-manager.c:1029:ply_device_manager_activate_renderer: activating renderers 00:00:03.246 ply-boot-splash.c:486:ply_boot_splash_show : showing splash screen 00:00:03.246 ./plugin.c:1538:show_splash_screen : loading lock image 00:00:03.246 ply-boot-splash.c:492:ply_boot_splash_show : can't show splash: No such file or directory 00:00:03.246 ply-boot-splash.c:390:ply_boot_splash_free : freeing splash 00:00:03.246 main.c:489:show_default_splash : Could not start default splash screen,showing text splash screen --- note that i uninstalled plymouth-text. If it is installed then the dummy plymouth text is shown instead of the spinner one. My hypothesis is the following : - - the bgrt theme used contains in its theme file : + - the bgrt theme contains in its theme file : ImageDir=/usr/share/plymouth/themes/spinner - the initramfs hook for plymouth only copies the theme directory (bgrt) not the one referenced in the theme file. I checked it using lsinitramfs on the newly generated initramfs image. - - At boot, when plymouth tries to find files under /usr/share/plymouth/themes/spinner, my real root is not mounted yet, plymouth cannot find the files an bails. + - At boot, when plymouth tries to find files under /usr/share/plymouth/themes/spinner, my real root is not mounted yet, plymouth cannot find the files and bails. If I modify the bgrt theme as follows: - change the line ImageDir to reference ImageDir=/usr/share/plymouth/themes/bgrt - copy all the image files from the spinner directory to the bgrt directory - regenerates the initramfs Then plymouth works as expected, I have the Dell logo and spinner at boot, or the resume message when exiting from hibernate [*]. I have a ZFS root partition on an nvme disk (might explain why my root partition is not up at that time ?). - - [*] Small caveat, on my system it seems there is a mode change between grub and plymouth hence my boot is not "flicker free" but this seems like a driver related issue. + [*] Small caveat, on my system it seems there is a mode change after the + kernel boot and while plymouth starts, hence my boot is not "flicker + free" but this seems like a driver related issue. ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: plymouth-theme-spinner 0.9.4git20190712-0ubuntu4.1 ProcVersionSignature: Ubuntu 5.3.0-25.27-generic 5.3.13 Uname: Linux 5.3.0-25-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu8.3 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CurrentDesktop: ubuntu:GNOME Date: Tue Dec 17 14:49:09 2019 DefaultPlymouth: /usr/share/plymouth/themes/bgrt/bgrt.plymouth EcryptfsInUse: Yes InstallationDate: Installed on 2019-10-19 (58 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) MachineType: Dell Inc. XPS 13 9380 ProcCmdLine: BOOT_IMAGE=/BOOT/ubuntu_5to4s3@/vmlinuz-5.3.0-25-generic root=ZFS=rpool/ROOT/ubuntu_5to4s3 ro plymouth:debug resume=UUID=136e5fef-7afe-4cb4-a996-e2d01f197738 quiet splash vt.handoff=1 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/BOOT/ubuntu_5to4s3@/vmlinuz-5.3.0-25-generic root=ZFS=rpool/ROOT/ubuntu_5to4s3 ro plymouth:debug resume=UUID=136e5fef-7afe-4cb4-a996-e2d01f197738 quiet splash vt.handoff=1 SourcePackage: plymouth UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/01/2019 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.8.0 dmi.board.name: 0KTW76 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.8.0:bd10/01/2019:svnDellInc.:pnXPS139380:pvr:rvnDellInc.:rn0KTW76:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: XPS dmi.product.name: XPS 13 9380 dmi.product.sku: 08AF dmi.sys.vendor: Dell Inc. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1856712 Title: spinner theme displays a blank (black) screen at boot on some systems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/1856712/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs