Hi, sorry for not being clear as I could. Please refer to
https://www.howtogeek.com/196655/how-to-configure-the-grub2-boot-
loaders-settings/ , detailed steps are:
1. To blacklist wmi module:
$ gksu gedit /etc/default/grub
Then edit the line beginning with "GRUB_CMDLINE_LINUX_DEFAULT=" as:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash module_blacklist=wmi
log_buf_len=32M"
I also added "log_buf_len=32M" here to extend kernel log buffer size
so that everything since boot will be kept. Save changes, quit gedit,
and then run update-grub to re-generate grub.conf based on these
changes:
$ sudo update-grub
After rebooted, open a terminal and save dmesg:
$ dmesg -w | sudo tee dmesg.$(uname -r).blacklist-wmi
This will run forever until interrupted (Ctrl-C). Now check if your
WiFi is back, interrupt previous dmesg command and paste the saved dmesg
log.
2. To enable WMI debug messages:
$ gksu gedit /etc/default/grub
Then edit the line beginning with "GRUB_CMDLINE_LINUX_DEFAULT=" as:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash wmi.debug_event=1
wmi.debug_dump_wdg=1 log_buf_len=32M"
Save changes, quit gedit, and then run update-grub to re-generate
grub.conf based on these changes:
$ sudo update-grub
After rebooted, open a terminal and save dmesg:
$ dmesg -w | sudo tee dmesg.$(uname -r).wmi-debug
This will run forever until interrupted (Ctrl-C). Since this only
enables WMI debug messages, your WiFi should still be hard blocked, just
go ahead to interrupt previous dmesg command and paste the saved dmesg
log.
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https://bugs.launchpad.net/bugs/1857307
Title:
Wireless wouldn't turn on.
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