Hi You-Sheng Thanks for your response. You are right. I only see below:
~$ dkms status bcmwl, 6.30.223.271+bdcom, 5.4.0-39-lowlatency, x86_64: installed bcmwl, 6.30.223.271+bdcom, 5.4.0-45-lowlatency, x86_64: installed nvidia, 450.66, 5.4.0-45-lowlatency, x86_64: installed ravindran@ravi-xps-ubuntu:~$ sudo dkms autoinstall [sudo] password for ravindran: Error! Your kernel headers for kernel 5.4.0-48-lowlatency cannot be found. Please install the linux-headers-5.4.0-48-lowlatency package, or use the --kernelsourcedir option to tell DKMS where it's located Error! Your kernel headers for kernel 5.4.0-48-lowlatency cannot be found. Please install the linux-headers-5.4.0-48-lowlatency package, or use the --kernelsourcedir option to tell DKMS where it's located So, I proceeded to install the headers: (attachment) linux-headers-5.4.0-47-lowlatency linux-headers-5.4.0-48-lowlatency Installing the headers automatically compiled the modules. $ dkms status bcmwl, 6.30.223.271+bdcom, 5.4.0-39-lowlatency, x86_64: installed bcmwl, 6.30.223.271+bdcom, 5.4.0-45-lowlatency, x86_64: installed bcmwl, 6.30.223.271+bdcom, 5.4.0-47-lowlatency, x86_64: installed bcmwl, 6.30.223.271+bdcom, 5.4.0-48-lowlatency, x86_64: installed nvidia, 450.66, 5.4.0-45-lowlatency, x86_64: installed nvidia, 450.66, 5.4.0-47-lowlatency, x86_64: installed nvidia, 450.66, 5.4.0-48-lowlatency, x86_64: installed ** Attachment added: "install missing headers" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1898154/+attachment/5417697/+files/output_installingheaders.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1898154 Title: Broadcom BCM4352 [14e4:43b1] Subsystem [1028:0019] No Wi-Fi Adapter Found Ubuntu 20.04 after updated Linux kernel to version 5.4.0-47-lowlatency 5.4.0-48-lowlatency To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1898154/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
