Anupam Datta, the next step is to fully commit bisect from kernel 4.4 to 4.15 in order to identify the last good kernel commit, followed immediately by the first bad one. This will allow for a more expedited analysis of the root cause of your issue. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection ?
Please note, finding adjacent kernel versions, or providing a commit from a kernel version bisect is not fully commit bisecting. Also, the kernel release names are irrelevant for the purposes of bisecting. It is most helpful that after the fix commit (not kernel version) has been identified, you then mark this report Status Confirmed. Thank you for your help. ** Tags added: bios-outdated-a29 kernel-bug-exists-upstream kernel-bug- exists-upstream-4.17-rc4 ** Description changed: I tried with a separate WiFi adaptor, it worked. but not with this: Bus 003 Device 004: ID 0846:9043 NetGear, Inc. WNA1000Mv2 802.11bgn [Realtek RTL8188CUS?] I tried in another machine with 16.04 but that worked perfectly. Disabled secure boot but still the problem is there. - ProblemType: Bug - DistroRelease: Ubuntu 18.04 - Package: ubuntu-release-upgrader-core 1:18.04.17 - ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 - Uname: Linux 4.15.0-20-generic x86_64 - ApportVersion: 2.20.9-0ubuntu7 - Architecture: amd64 - CrashDB: ubuntu - CurrentDesktop: ubuntu:GNOME - Date: Tue May 8 11:44:38 2018 - PackageArchitecture: all - SourcePackage: ubuntu-release-upgrader - Symptom: release-upgrade - UpgradeStatus: Upgraded to bionic on 2018-05-02 (5 days ago) - --- + --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC0: anupam_on 1629 F.... pulseaudio + USER PID ACCESS COMMAND + /dev/snd/controlC0: anupam_on 1629 F.... pulseaudio CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=95f4f359-f61b-4cf4-930a-73af6df0cf63 MachineType: Dell Inc. OptiPlex 9010 Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-20-generic root=UUID=c27e363f-cbe0-446c-bce7-18865e8f0b88 ro quiet splash vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions: - linux-restricted-modules-4.15.0-20-generic N/A - linux-backports-modules-4.15.0-20-generic N/A - linux-firmware 1.173 + linux-restricted-modules-4.15.0-20-generic N/A + linux-backports-modules-4.15.0-20-generic N/A + linux-firmware 1.173 RfKill: - + Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: Upgraded to bionic on 2018-05-02 (6 days ago) UserGroups: adm cdrom davfs2 dip libvirt libvirtd lpadmin plugdev sambashare sudo wireshark _MarkForUpload: True dmi.bios.date: 01/10/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A12 dmi.board.name: 051FJ8 dmi.board.vendor: Dell Inc. dmi.board.version: A02 dmi.chassis.type: 15 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA12:bd01/10/2013:svnDellInc.:pnOptiPlex9010:pvr01:rvnDellInc.:rn051FJ8:rvrA02:cvnDellInc.:ct15:cvr: dmi.product.name: OptiPlex 9010 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. - --- - ApportVersion: 2.20.9-0ubuntu7 - Architecture: amd64 - CurrentDesktop: ubuntu:GNOME - DistroRelease: Ubuntu 18.04 - Package: linux (not installed) - Tags: bionic - Uname: Linux 4.17.0-041700rc4-generic x86_64 - UnreportableReason: The running kernel is not an Ubuntu kernel - UpgradeStatus: Upgraded to bionic on 2018-05-02 (6 days ago) - UserGroups: adm cdrom davfs2 dip libvirt libvirtd lpadmin plugdev sambashare sudo wireshark - _MarkForUpload: True ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete ** Attachment removed: "ProcEnviron.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1769823/+attachment/5136597/+files/ProcEnviron.txt ** Attachment removed: "ProcCpuinfoMinimal.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1769823/+attachment/5136596/+files/ProcCpuinfoMinimal.txt ** Summary changed: - WiFi adapter not working after upgraded from 17.10 to 18.04 + Netgear WNA1000Mv2 not working after upgraded from 17.10 to 18.04 -- 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/1769823 Title: Netgear WNA1000Mv2 not working after upgraded from 17.10 to 18.04 Status in linux package in Ubuntu: Incomplete Bug description: I tried with a separate WiFi adaptor, it worked. but not with this: Bus 003 Device 004: ID 0846:9043 NetGear, Inc. WNA1000Mv2 802.11bgn [Realtek RTL8188CUS?] I tried in another machine with 16.04 but that worked perfectly. Disabled secure boot but still the problem is there. --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: anupam_on 1629 F.... pulseaudio CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=95f4f359-f61b-4cf4-930a-73af6df0cf63 MachineType: Dell Inc. OptiPlex 9010 Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-20-generic root=UUID=c27e363f-cbe0-446c-bce7-18865e8f0b88 ro quiet splash vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions: linux-restricted-modules-4.15.0-20-generic N/A linux-backports-modules-4.15.0-20-generic N/A linux-firmware 1.173 RfKill: Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: Upgraded to bionic on 2018-05-02 (6 days ago) UserGroups: adm cdrom davfs2 dip libvirt libvirtd lpadmin plugdev sambashare sudo wireshark _MarkForUpload: True dmi.bios.date: 01/10/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A12 dmi.board.name: 051FJ8 dmi.board.vendor: Dell Inc. dmi.board.version: A02 dmi.chassis.type: 15 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA12:bd01/10/2013:svnDellInc.:pnOptiPlex9010:pvr01:rvnDellInc.:rn051FJ8:rvrA02:cvnDellInc.:ct15:cvr: dmi.product.name: OptiPlex 9010 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. 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