You're right - those logs are apparently from short boots. longhangprevboot.txt lasted less than 2 minutes and only 2 seconds between GLSL errors and the machine beginning to shutdown.
longhangprevboot2.txt lasted 2 minutes and again was only 4 seconds between GLSL errors and the machine beginning shutting down. Maybe that's a hint at a bigger problem if the system clock is running slower than reality..? Do older releases like Ubuntu 16.04 work on it? How about Lubuntu 18.04.1? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1811599 Title: When booting, the computer hangs at a purple screen and no login prompt is ever displayed [Apple Macbook 2,1 - Intel GMA 950] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1811599/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs