I ran through some more kernels and then when I re-tested 4.2.0-040200rc1-generic it did not work. So I re-tested some kernels doing five runs each time. (B=Broken, W=Works)
3.19.0-50-generic - WWWWW 4.2.0-040200rc1-generic - WBBBW 4.2.0-040200rc2-generic - BBBWW (201507151846) 4.4.0-6-generic - BBBBW So it appears it has gone from working reliably in 3.19 to being unreliable in 4.x, failing in the order of 20-40% of each boot. Note I blacklisted the hid-multitouch module so for these tests I was manually modprobing it after boot. Also 4.4 tends to boot slower than 4.2. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1498667 Title: [Toshiba P50W-B00F] Touchscreen no longer working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1498667/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
