Hi everybody,
I got the hardware back from the HP support. The support confirmed that
there has been a hardware bug in the motherboard of the system.
The motherboard has been exchanged. I have now installed Fedora-19-Mate
and everything works ok.
Hence this is most probably not a Ubuntu or Linux bug. This bug can be
closed.
By the way: The support by HP has been very helpful allthough the bug
appeared in Linux and this is offically not supported
Thanks for everybody for the support!!!
** Changed in: xorg (Ubuntu)
Status: New => Fix Released
** Summary changed:
- ubuntu-13.04-desktop-amd64 freezes at startup
+ ubuntu-13.04-desktop-amd64 freezes at startup [solved, hardware bug]
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https://bugs.launchpad.net/bugs/1178026
Title:
ubuntu-13.04-desktop-amd64 freezes at startup [solved, hardware bug]
Status in X.Org X server:
New
Status in “xorg” package in Ubuntu:
Fix Released
Status in Fedora:
Unknown
Bug description:
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?
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