I have attached the output of "dpkg -l | grep linux | grep extra". The output of that command was the same across both kernels 4.13.0-43-generic and 4.13.0-39-generic.
An important thing I would like to add is: the problem I had mentioned regarding black screen, low-graphics, dialog boxes, and no wifi happens 9/10 times in kernels 4.13.0-43-generic and 4.13.0-41-generic. But, 1/10 times those kernels boot absolutely normally, and wifi also works at that time. It seems to me that maybe sometimes the OS cannot detect certain things (devices/drivers) during boot-up. Could this be due to a virus or hardware problem? Thanks! ** Attachment added: "dpkg -l | grep linux | grep extra" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1770108/+attachment/5149491/+files/dpkgOutput.txt -- 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/1770108 Title: No wifi in 4.13.0-41-generic Status in linux package in Ubuntu: Confirmed Bug description: Wifi adapter not showing since upgrading to 4.13.0-41-generic, still works fine if i roll back to 4.13.0-39-generic. Ubuntu 16.04 adapter details *-network description: Wireless interface product: RTL8192CE PCIe Wireless Network Adapter vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:01:00.0 logical name: wlp1s0 version: 01 serial: width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1770108/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp