On Acer aspire 5532 after installation getting on boot message: acer_wmi: unable to find wmid devices Laptop is working well, but why not to fix this. Any help to fix it (not to cover) would be very welcome.
Try blacklisting the acer-wmi kernel module:
sudo nano /etc/modprobe.d/blacklist.conf
blacklist acer_wmi as a new line at the bottom of this file.
Or if you like one-line tricks:
echo blacklist acer-wmi | sudo tee -a /etc/modprobe.d/blacklist-acer-wmi.conf
The acer-wmi kernel module enables you to control the following:
- the wireless LAN card radio
- inbuilt Bluetooth adapter
- inbuilt 3G card
- mail LED of your laptop
- brightness of the LCD panel
For some acer laptop models - there is a conflict between the Acer firmware and the kernel implementation. This is why you need to blacklist.
If you need any of the capabilities above and they are not enabled by other kernel modules then you have a choice - live without the capability ... or live with the brief VT switch during boot.
I had a same problem on my Acer Aspire 5534 laptop with bios version 1.10 with Xubuntu 16.04 LTS as well as Ubuntu Mate 16.04 LTS. The problem is resolved by updating the bios to version 1.18. The bios update was downloaded from Acer's website. Enjoy.