Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.
** Information type changed from Private Security to Public -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1746342 Title: Boot hangs on passphrase prompt for encrypted root file system with NVidia proprietary driver Status in xorg package in Ubuntu: New Bug description: During installation of Ubuntu 17.10.1, I checked the box for installing proprietary drivers, but on the initial (successful) boot after installation it came up running the Nouveau driver, and then I was prompted to select the proprietary drivers I wanted: NVidia & AMD64 Microcode. I selected both. Rebooting to the default Ubuntu grub entry fails at the passphrase prompt for the root file system. There is a graphic prompt for the passphrase, but there appears to be no response to key strokes. But passphrase actually appears in clear text on virtual terminal 7 when switched to. Unsuspecting users may enter their passphrase and walk away with their computer on (e.g. to get help) and anyone else with physical access potentially could discover their passphrase in the meantime. This happened with the initial nvidia driver: nvidia-384:amd64 384.111-0ubuntu0.17.10.1 But continues to happen after upgrading to: nvidia-390:amd64 390.12-0ubuntu1 Likewise it occurs with both kernels 4.13.0-21 & 4.13.0-31 The following work around the bug: 1. Boot in recovery mode. Then select "Resume normal boot" twice. (Alternatively, open recovery shell and exit it to resume booting.) 2. But I preferred to modify /etc/default/grub as follows: Replacing: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" with GRUB_CMDLINE_LINUX_DEFAULT="" and adding: GRUB_TERMINAL=console GRUB_GFXPAYLOAD_LINUX=text ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: xorg 1:7.7+19ubuntu3 ProcVersionSignature: Ubuntu 4.13.0-31.34-generic 4.13.13 Uname: Linux 4.13.0-31-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia .proc.driver.nvidia.gpus.0000.0e.00.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0000:0e:00.0' .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 390.12 Wed Dec 20 07:19:16 PST 2017 GCC version: gcc version 7.2.0 (Ubuntu 7.2.0-8ubuntu3) ApportVersion: 2.20.7-0ubuntu3.7 Architecture: amd64 CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Tue Jan 30 13:18:33 2018 DistUpgraded: Fresh install DistroCodename: artful DistroVariant: ubuntu DkmsStatus: bbswitch, 0.8, 4.13.0-21-generic, x86_64: installed bbswitch, 0.8, 4.13.0-31-generic, x86_64: installed nvidia-390, 390.12, 4.13.0-31-generic, x86_64: installed ExtraDebuggingInterest: Yes, including running git bisection searches GpuHangFrequency: Continuously GpuHangReproducibility: Yes, I can easily reproduce it GpuHangStarted: Immediately after installing this version of Ubuntu GraphicsCard: NVIDIA Corporation GP106 [GeForce GTX 1060 6GB] [10de:1c03] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Micro-Star International Co., Ltd. [MSI] GP106 [GeForce GTX 1060 6GB] [1462:3281] InstallationDate: Installed on 2018-01-22 (8 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105.1) MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcEnviron: TERM=dumb PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-31-generic root=UUID=10f30b03-9566-4d46-997f-c80b29dd3589 ro rootflags=subvol=@ SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/08/2017 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P3.20 dmi.board.name: X370 Taichi dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP3.20:bd09/08/2017:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX370Taichi:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.family: To Be Filled By O.E.M. dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.83-1 version.libgl1-mesa-dri: libgl1-mesa-dri 17.2.4-0ubuntu1~17.10.2 version.libgl1-mesa-glx: libgl1-mesa-glx 17.2.4-0ubuntu1~17.10.2 version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A version.xserver-xorg-core: xserver-xorg-core 2:1.19.5-0ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.10.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20170309-0ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1746342/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : firstname.lastname@example.org Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp