I'm really shocked after reading this bug report!! Same problem here. I haven't a Samsung notebook but a Lenovo Twist and used Ubuntu 12.04.2 and 12.10 in UEFI-Mode. After a kernel panic I had to power off the notebook by holding down the power button more than 5s. After that laptop hangs up in black screen. Nothing happens. You can't get into BIOS, no sound, nothing.
@menshen (pepitogrillo023) I opened the notebook and unplugged the normal battery and the little backup battery. After that I waited five minutes and re-assembled the notebook, but there ist still a black screen. So clearing the CMOS with the backup battery won't help. It's very important that Ubuntu and other distributions give a VERY BIG WARNING to every user that uses the LiveCDs with UEFI. (This error report is nearly half a year old and no warning on the front page of ubuntu.com, I'M SHOCKED. MY NOTEBOOK WOULD STILL WORK IF THERE WOULD HAVE BEEN ANY WARNING!) As you can see here the problem doesn't exist only on a few Samsung notebooks, but also on new Lenovo notebooks. By the way, my notebook was exactly one day old and now it's scrap. I destroyed lots of money. You can believe me, I'm not really happy to read about this AFTER Ubuntu destroyed my new notebook, the warning should be placed on the front page of ubuntu.com and not in a bug report somewhere on launchpad. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1040557 Title: UEFI boot live-usb bricks SAMSUNG 530U3C,np700z5c laptop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-cdimage/+bug/1040557/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
