It sounds like the main problem is still Mesa. The i7-640M is a "Gen5" Intel GPU apparently: https://en.wikipedia.org/wiki/List_of_Intel_graphics_processing_units#Gen5
That means Mesa should select the "i965" Mesa driver for it: /usr/lib/x86_64-linux-gnu/dri/i965_dri.so Make sure your build of Mesa provides that file. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1960403 Title: Kubuntu constantly freezing on ThinkPad T510 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kwin/+bug/1960403/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
