As I indicated in the original post, the problem also occurs when booting from the LiveCD. Not sure what additional info to provide, so have attached a few files I thought may be important.
Pretty much stuck here as the only option right now seems to be be to go back to 16.04. Thanks ** Attachment added: "LiveCDLogs.zip" https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1637032/+attachment/4772096/+files/LiveCDLogs.zip -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1637032 Title: The screen keeps flashing (even in text terminal mode) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1637032/+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