There are one or two issues here. The second one at least shows a problem in the Nvidia kernel driver:
[ 11.094895] NVRM: Your system is not currently configured to drive a VGA console [ 11.094899] NVRM: on the primary VGA device. The NVIDIA Linux graphics driver [ 11.094900] NVRM: requires the use of a text-mode VGA console. Use of other console [ 11.094901] NVRM: drivers including, but not limited to, vesafb, may result in [ 11.094902] NVRM: corruption and stability problems, and is not supported. [ 11.132280] ------------[ cut here ]------------ [ 11.132285] Bad or missing usercopy whitelist? Kernel memory exposure attempt detected from SLUB object 'nvidia_stack_t' (offset 11864, size 3)! [ 11.132303] WARNING: CPU: 0 PID: 704 at mm/usercopy.c:83 usercopy_warn+0x81/0xa0 [ 11.132304] Modules linked in: nvidia_uvm(POE) dell_laptop dell_smbios dell_wmi_descriptor coretemp wmi dcdbas dell_smm_hwmon kvm_intel kvm irqbypass arc4 uvcvideo iwldvm videobuf2_vmalloc videobuf2_memops mac80211 videobuf2_v4l2 videobuf2_common joydev videodev input_leds media iwlwifi snd_hda_codec_idt snd_hda_codec_generic ledtrig_audio cfg80211 snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq nvidia(POE) snd_seq_device snd_timer snd drm mac_hid serio_raw soundcore sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 hid_generic usbhid hid i2c_i801 psmouse ahci libahci lpc_ich r8169 realtek video [ 11.132342] CPU: 0 PID: 704 Comm: Xorg Tainted: P OE 5.0.0-11-generic #12-Ubuntu [ 11.132343] Hardware name: Dell Inc. Vostro 1720/0P369J, BIOS A05 10/27/2009 [ 11.132345] RIP: 0010:usercopy_warn+0x81/0xa0 [ 11.132347] Code: 0f a8 41 51 4d 89 d8 48 c7 c0 98 a1 0e a8 49 89 f1 48 89 f9 48 0f 45 c2 48 c7 c7 28 c2 0f a8 4c 89 d2 48 89 c6 e8 11 03 df ff <0f> 0b 48 83 c4 18 c9 c3 48 c7 c6 e2 ae 11 a8 49 89 f1 49 89 f3 eb [ 11.132349] RSP: 0018:ffffa3ff8191bb58 EFLAGS: 00010282 [ 11.132350] RAX: 0000000000000000 RBX: ffff902ff2a82e58 RCX: 0000000000000006 [ 11.132352] RDX: 0000000000000007 RSI: 0000000000000092 RDI: ffff902ffba16440 [ 11.132353] RBP: ffffa3ff8191bb70 R08: 0000000000000001 R09: 000000000000036c [ 11.132354] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000003 [ 11.132355] R13: 0000000000000001 R14: ffff902ff2a82e5b R15: ffff902ff2a82ea0 [ 11.132357] FS: 00007fc7286eca80(0000) GS:ffff902ffba00000(0000) knlGS:0000000000000000 [ 11.132359] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 11.132360] CR2: 00007fc723cce160 CR3: 000000013346a000 CR4: 00000000000406f0 [ 11.132361] Call Trace: [ 11.132369] __check_heap_object+0xc2/0x110 [ 11.132371] __check_object_size+0x166/0x192 [ 11.132565] os_memcpy_to_user+0x26/0x50 [nvidia] [ 11.132675] _nv001372rm+0xa5/0x260 [nvidia] ** Tags added: nvidia ** Package changed: xorg (Ubuntu) => nvidia-graphics-drivers-340 (Ubuntu) -- 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/1824670 Title: Boot to black screen after Kubuntu 19.04 install Status in nvidia-graphics-drivers-340 package in Ubuntu: New Bug description: Legacy laptop, Dell Vostro 1720, booted to black screen after fresh full disk install. Using ctrl-alt-f2 to drop to a terminal and issuing "startx" completed the boot process. Installed NVidia 340 driver which crashed the current session and sent me to an endless GUI (sddm?) login loop where login immediately crashed back to the GUI login. Rebooting from the login screen worked as expected and system is running fine now. ProblemType: Bug DistroRelease: Ubuntu 19.04 Package: xorg 1:7.7+19ubuntu12 ProcVersionSignature: Ubuntu 5.0.0-11.12-generic 5.0.6 Uname: Linux 5.0.0-11-generic x86_64 NonfreeKernelModules: nvidia .proc.driver.nvidia.gpus.0000.01.00.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0000:01:00.0' .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 340.107 Thu May 24 21:54:01 PDT 2018 GCC version: gcc version 8.3.0 (Ubuntu 8.3.0-6ubuntu1) .proc.driver.nvidia.warnings.fbdev: Your system is not currently configured to drive a VGA console on the primary VGA device. The NVIDIA Linux graphics driver requires the use of a text-mode VGA console. Use of other console drivers including, but not limited to, vesafb, may result in corruption and stability problems, and is not supported. ApportVersion: 2.20.10-0ubuntu27 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CompositorRunning: None CurrentDesktop: KDE Date: Sat Apr 13 21:03:41 2019 DistUpgraded: Fresh install DistroCodename: disco DistroVariant: ubuntu DkmsStatus: nvidia-340, 340.107, 5.0.0-11-generic, x86_64: installed GraphicsCard: NVIDIA Corporation G96M [GeForce 9600M GS] [10de:0648] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Dell G96M [GeForce 9600M GS] [1028:02c0] InstallationDate: Installed on 2019-04-14 (0 days ago) InstallationMedia: Kubuntu 19.04 "Disco Dingo" - Alpha amd64 (20190413.1) MachineType: Dell Inc. Vostro 1720 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.0.0-11-generic root=UUID=bd90d4b8-d528-46cd-8c3a-55001a8200b9 ro quiet splash vt.handoff=1 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/27/2009 dmi.bios.vendor: Dell Inc. dmi.bios.version: A05 dmi.board.name: 0P369J dmi.board.vendor: Dell Inc. dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: N/A dmi.modalias: dmi:bvnDellInc.:bvrA05:bd10/27/2009:svnDellInc.:pnVostro1720:pvrNull:rvnDellInc.:rn0P369J:rvr:cvnDellInc.:ct8:cvrN/A: dmi.product.family: Vostro dmi.product.name: Vostro 1720 dmi.product.sku: Null dmi.product.version: Null dmi.sys.vendor: Dell Inc. version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.97-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 19.0.2-1ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.4-1ubuntu3 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.0.1-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20180925-2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-340/+bug/1824670/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp