Using the recovery mode (https://wiki.ubuntu.com/RecoveryMode), please try to install the kernel mainline build (https://wiki.ubuntu.com/Kernel/MainlineBuilds) and test if it works.
Then tell the result here, and set this bug status back to "confirmed". Thank you.
Using the recovery mode (https:/ /wiki.ubuntu. com/RecoveryMod e), please try to install the kernel mainline build (https:/ /wiki.ubuntu. com/Kernel/ MainlineBuilds) and test if it works.
Then tell the result here, and set this bug status back to "confirmed". Thank you.