Thanks. boot-3.txt shows nvidia-340 failed because:
Feb 26 12:56:58 ubuntu-P55A-UD3 /usr/lib/gdm3/gdm-x-session[1685]: (EE) NVIDIA(GPU-0): Failed to initialize DMA. boot-4.txt shows the nvidia-340 kernel driver crashing. boot-5.txt shows nvidia-390 failed because: Feb 26 12:41:43 ubuntu-P55A-UD3 /usr/lib/gdm3/gdm-x-session[1652]: (EE) NVIDIA(GPU-0): Failed to initialize the NVIDIA GPU at PCI:6:0:0. Please Feb 26 12:41:43 ubuntu-P55A-UD3 /usr/lib/gdm3/gdm-x-session[1652]: (EE) NVIDIA(GPU-0): check your system's kernel log for additional error Feb 26 12:41:43 ubuntu-P55A-UD3 /usr/lib/gdm3/gdm-x-session[1652]: (EE) NVIDIA(GPU-0): messages and refer to Chapter 8: Common Problems in the Feb 26 12:41:43 ubuntu-P55A-UD3 /usr/lib/gdm3/gdm-x-session[1652]: (EE) NVIDIA(GPU-0): README for additional information. Feb 26 12:41:43 ubuntu-P55A-UD3 /usr/lib/gdm3/gdm-x-session[1652]: (EE) NVIDIA(GPU-0): Failed to initialize the NVIDIA graphics device! Feb 26 12:41:43 ubuntu-P55A-UD3 nvidia-persistenced[1711]: Received signal 15 Feb 26 12:41:43 ubuntu-P55A-UD3 /usr/lib/gdm3/gdm-x-session[1652]: (EE) NVIDIA(0): Failing initialization of X screen 0 Feb 26 12:41:43 ubuntu-P55A-UD3 /usr/lib/gdm3/gdm-x-session[1652]: (II) UnloadModule: "nvidia" Feb 26 12:41:43 ubuntu-P55A-UD3 /usr/lib/gdm3/gdm-x-session[1652]: (II) UnloadSubModule: "wfb" Feb 26 12:41:43 ubuntu-P55A-UD3 /usr/lib/gdm3/gdm-x-session[1652]: (II) UnloadSubModule: "fb" Feb 26 12:41:43 ubuntu-P55A-UD3 /usr/lib/gdm3/gdm-x-session[1652]: (EE) Screen(s) found, but none have a usable configuration. Feb 26 12:41:43 ubuntu-P55A-UD3 /usr/lib/gdm3/gdm-x-session[1652]: (EE) Feb 26 12:41:43 ubuntu-P55A-UD3 /usr/lib/gdm3/gdm-x-session[1652]: Fatal server error: Feb 26 12:41:43 ubuntu-P55A-UD3 /usr/lib/gdm3/gdm-x-session[1652]: (EE) no screens found(EE) Feb 26 12:41:43 ubuntu-P55A-UD3 /usr/lib/gdm3/gdm-x-session[1652]: (EE) ** Summary changed: - System failed to boot when nvidia-390 was installed + System with GeForce GT 520 failed to boot when nvidia-390 was installed ** Also affects: nvidia-graphics-drivers-340 (Ubuntu) Importance: Undecided Status: New ** Changed in: nvidia-graphics-drivers-340 (Ubuntu) Status: New => Won't Fix ** Changed in: nvidia-graphics-drivers-390 (Ubuntu) Status: Incomplete => New ** Changed in: linux (Ubuntu) Status: Incomplete => New ** Tags added: eoan -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers-390 in Ubuntu. https://bugs.launchpad.net/bugs/1864781 Title: System with GeForce GT 520 failed to boot when nvidia-390 was installed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1864781/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp