Public bug reported: Hardware: HP envy 23: - Intel Core i7 3770s - 8 GB DDR3-1600 - Radeon HD 7450A - Hard drive: 1 TB SATA - exact technical spec: http://h10025.www1.hp.com/ewfrf/wc/document?docname=c03683196&cc=ad&dlc=en&lc=en&jumpid=reg_r1002_usen_c-001_title_r0001#N1445
How to reproduce: Start ubuntu with a live media ubuntu-13.04-desktop-amd64 on USB. -> ubuntu is recognized by the EFI firmware and can be booted -> grub is started and "Try ubuntu without installation" is selected -> the screen turns purple; the ubuntu logo appears; and the five white point are turning red one by one -> the screen gets frozen with all five points being red. No login appears. No GUI appears. The mouse can still be moved. Actions taken: <ctrl> + <alt> + F1 leads to a shell but X can not be restarted Further information: 1. The same machine works ok on Windows 8 This means that it pretty sure, that this is not a hardware issue 2. The same machine has similar problems with other ubuntu and fedora releases: - ubuntu 12.04.02 LTS Live hangs always at starting up X and never gets to the first "end-user-screen" - ubuntu 12.10 Live boots correctly and the system can be installed. However also some very similar freezes occur. - fedora 18 has some very similar freezes What can I do to fix or circumvent the bug? What additional information is required and how can I generate this info? ** Affects: xorg-server Importance: Undecided Status: New ** Affects: ubuntu Importance: Undecided Status: New ** Affects: fedora Importance: Unknown Status: Unknown ** Bug watch added: Red Hat Bugzilla #948641 https://bugzilla.redhat.com/show_bug.cgi?id=948641 ** Also affects: fedora via https://bugzilla.redhat.com/show_bug.cgi?id=948641 Importance: Unknown Status: Unknown ** Also affects: xorg-server Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1178026 Title: ubuntu-13.04-desktop-amd64 freezes at startup To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1178026/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs