Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.19-rc7 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.19-rc7/ ** This bug is no longer a duplicate of bug 1796726 Ubuntu 18.10 regression: nvidia driver does not work ** Changed in: linux (Ubuntu) Status: New => Incomplete ** Description changed: - Extra info for bug 1796433 + Problems started after upgrade to 18.10 and first reboot. + Symptoms: + * Login screen appears + * After providing credentials desktop does not start + + --- + + Extra info for Bug 1796433 ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: linux-image-4.18.0-8-generic 4.18.0-8.9 ProcVersionSignature: Ubuntu 4.18.0-8.9-generic 4.18.7 Uname: Linux 4.18.0-8-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.10-0ubuntu11 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/controlC1', '/dev/snd/hwC1D3', '/dev/snd/hwC1D2', '/dev/snd/hwC1D1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D9p', '/dev/snd/pcmC1D8p', '/dev/snd/pcmC1D7p', '/dev/snd/pcmC1D3p', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Mon Oct 8 20:01:33 2018 HibernationDevice: RESUME=UUID=45af239b-c597-45a1-bb72-3ba25b5ee546 InstallationDate: Installed on 2016-01-06 (1005 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-8-generic root=UUID=d4f27b9e-0cff-49e1-8392-a41aa520bd85 ro noprompt persistent quiet splash vt.handoff=1 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: - linux-restricted-modules-4.18.0-8-generic N/A - linux-backports-modules-4.18.0-8-generic N/A - linux-firmware 1.175 + linux-restricted-modules-4.18.0-8-generic N/A + linux-backports-modules-4.18.0-8-generic N/A + linux-firmware 1.175 RfKill: - 0: phy0: Wireless LAN - Soft blocked: yes - Hard blocked: no + 0: phy0: Wireless LAN + Soft blocked: yes + Hard blocked: no SourcePackage: linux UpgradeStatus: Upgraded to cosmic on 2018-10-05 (2 days ago) dmi.bios.date: 09/16/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P1.10 dmi.board.name: HM65-MXM 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.:bvrP1.10:bd09/16/2011:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnHM65-MXM: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.sku: 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. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1796730 Title: Ubuntu 18.10 regression: nvidia driver does not work Status in linux package in Ubuntu: Incomplete Bug description: Problems started after upgrade to 18.10 and first reboot. Symptoms: * Login screen appears * After providing credentials desktop does not start --- Extra info for Bug 1796433 ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: linux-image-4.18.0-8-generic 4.18.0-8.9 ProcVersionSignature: Ubuntu 4.18.0-8.9-generic 4.18.7 Uname: Linux 4.18.0-8-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.10-0ubuntu11 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/controlC1', '/dev/snd/hwC1D3', '/dev/snd/hwC1D2', '/dev/snd/hwC1D1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D9p', '/dev/snd/pcmC1D8p', '/dev/snd/pcmC1D7p', '/dev/snd/pcmC1D3p', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D2c', '/dev/snd/pcmC0D1p', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Mon Oct 8 20:01:33 2018 HibernationDevice: RESUME=UUID=45af239b-c597-45a1-bb72-3ba25b5ee546 InstallationDate: Installed on 2016-01-06 (1005 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-8-generic root=UUID=d4f27b9e-0cff-49e1-8392-a41aa520bd85 ro noprompt persistent quiet splash vt.handoff=1 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.18.0-8-generic N/A linux-backports-modules-4.18.0-8-generic N/A linux-firmware 1.175 RfKill: 0: phy0: Wireless LAN Soft blocked: yes Hard blocked: no SourcePackage: linux UpgradeStatus: Upgraded to cosmic on 2018-10-05 (2 days ago) dmi.bios.date: 09/16/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P1.10 dmi.board.name: HM65-MXM 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.:bvrP1.10:bd09/16/2011:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnHM65-MXM: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.sku: 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. 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