I am sorry that I forgot the files from dmesg and Xorg.0.log. And right after sending this bug report I read some articles in AskUbuntu. I installed Ubuntu by UEFI mode when the bug happened, and I found no use of UEFI for me. Then I reinstalled by Legacy mode and meantime I erased everything when I found email from here. I regret why I didn't put those files on Google drive or somewhere...
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1881062 Title: Mouse pointer disappeared after upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1881062/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
