** Summary changed: - booting with splash hangs when external monitors are connected (pure intel laptop) + booting with splash hangs when external monitors are connected (pure intel 8th gen laptop)
** Description changed: + I think this is a problem with the splash boot loader. This problem is + not reproduced if using nosplash. - I think this is a problem with the splash boot loader. + I have installed 20.04 to this laptop. Thinkpad T480, i7, intel + graphics. - I have installed 20.04 to this laptop. Clean install, not an upgrade. + Clean install of 20.04 beta, not an upgrade. When booting from the install, the greeter screen is never reached if external monitors are connected at startup. - I get the spinning ubuntu logo, and nothing more. I can not change to virtual terminals. + I get the spinning ubuntu logo, and nothing more. I can not change to virtual terminals. The fsck step does not commence. + In recovery mood, I can log in. - I am used to having such problems with Nvidia graphics is involved, but this is not the case on this laptop. It has been happily running 18.04. + + With no external monitors attached, it works. + + I am used to having such problems with Nvidia graphics is involved, but + this is not the case on this laptop. It has been happily running 18.04. External displays are recognised if they are connected after login. Also, when I edit /etc/default/grub so that it reads GRUB_CMDLINE_LINUX_DEFAULT="" (that is, splash disabled) it works fine with two external monitors attached. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27 Uname: Linux 5.4.0-21-generic x86_64 ApportVersion: 2.20.11-0ubuntu26 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Sat Apr 11 13:58:19 2020 DistUpgraded: Fresh install DistroCodename: focal DistroVariant: ubuntu DkmsStatus: - acpi-call, 1.1.0, 5.4.0-21-generic, x86_64: installed - tp_smapi, 0.43, 5.4.0-21-generic, x86_64: installed + acpi-call, 1.1.0, 5.4.0-21-generic, x86_64: installed + tp_smapi, 0.43, 5.4.0-21-generic, x86_64: installed ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: - Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA controller]) - Subsystem: Lenovo UHD Graphics 620 [17aa:225d] + Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA controller]) + Subsystem: Lenovo UHD Graphics 620 [17aa:225d] InstallationDate: Installed on 2020-04-10 (0 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200402) MachineType: LENOVO 20L5S00F00 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-21-generic root=/dev/mapper/myvg-root ro SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/19/2020 dmi.bios.vendor: LENOVO dmi.bios.version: N24ET56W (1.31 ) dmi.board.asset.tag: Not Available dmi.board.name: 20L5S00F00 dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN24ET56W(1.31):bd02/19/2020:svnLENOVO:pn20L5S00F00:pvrThinkPadT480:rvnLENOVO:rn20L5S00F00:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad T480 dmi.product.name: 20L5S00F00 dmi.product.sku: LENOVO_MT_20L5_BU_Think_FM_ThinkPad T480 dmi.product.version: ThinkPad T480 dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.101-1 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.4-1ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx 20.0.4-1ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.20.7-2ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20190815-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1872159 Title: booting with splash hangs when external monitors are connected (pure intel 8th gen laptop) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/1872159/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs