Public bug reported: This happened just after installing ubuntu 14.04.5 LTS along side with windows 10. The installation was complete and no login loop issue was there.
Moreover , the system stated an error due to shim not being installed. The two screen monitor is not working and the other monitor is black.. ProblemType: Package DistroRelease: Ubuntu 14.04 Package: shim (not installed) ProcVersionSignature: Ubuntu 4.4.0-135.161~14.04.1-generic 4.4.140 Uname: Linux 4.4.0-135-generic x86_64 .proc.sys.kernel.moksbstate.disabled: 0 ApportVersion: 2.14.1-0ubuntu3.21 Architecture: amd64 BootEFIContents: grub.cfg grubx64.efi mmx64.efi shimx64.efi Date: Fri Sep 14 11:30:55 2018 EFITables: Sep 14 11:32:42 plp-ROS kernel: [ 0.000000] efi: EFI v2.50 by American Megatrends Sep 14 11:32:42 plp-ROS kernel: [ 0.000000] efi: ACPI 2.0=0x8ea21000 ACPI=0x8ea21000 SMBIOS=0x8f644000 SMBIOS 3.0=0x8f643000 ESRT=0x8a498698 Sep 14 11:32:42 plp-ROS kernel: [ 0.000000] esrt: Reserving ESRT space from 0x000000008a498698 to 0x000000008a4986f8. ErrorMessage: subprocess dpkg-deb --control returned error exit status 2 InstallationDate: Installed on 2018-09-14 (0 days ago) InstallationMedia: Ubuntu 14.04.5 LTS "Trusty Tahr" - Release amd64 (20160803) RelatedPackageVersions: dpkg 1.17.5ubuntu5.7 apt 1.0.1ubuntu2.14 SecureBoot: 6 0 0 0 0 SourcePackage: shim Title: package shim (not installed) failed to install/upgrade: subprocess dpkg-deb --control returned error exit status 2 UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: shim (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-package trusty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1792497 Title: package shim (not installed) failed to install/upgrade: subprocess dpkg-deb --control returned error exit status 2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shim/+bug/1792497/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs