I am also Linux Mint 19 with the same symptoms. WiFi works for a few hours and then no connection until reboot. I found the following tell- tale (repeated multiple times) in kern.log:
Apr 13 15:15:50 ideapad kernel: [22708.516956] ath10k_pci 0000:02:00.0: failed to wake target for write32 of 0x000007f3 at 0x0003543c: -110 Apr 13 15:15:51 ideapad kernel: [22709.541368] ath10k_pci 0000:02:00.0: failed to wake target for write32 of 0x000007f5 at 0x0003543c: -110 Apr 13 15:15:52 ideapad kernel: [22710.565103] ath10k_pci 0000:02:00.0: failed to wake target for write32 of 0x000007f7 at 0x0003543c: -110 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1871804 Title: WiFi adapter doesn't work with linux kernel version 5.3.0-46 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1871804/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
