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 Bugs, which is subscribed to 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 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
