The problem happened again a while ago... I found a post in a forum http://ubuntuforums.org/showpost.php?p=11917028&postcount=2
where the user reports similar problems (crashes and black screen instead of console) caused by the nvidia driver. So I removed the nvidia drivers. So far the only difference is, that switching to text console from X is instant --- it took several seconds before to switch back and forth. I will report again whether the crashes still occur.
The problem happened again a while ago... I found a post in a forum ubuntuforums. org/showpost. php?p=11917028& postcount= 2
http://
where the user reports similar problems (crashes and black screen instead of console) caused by the nvidia driver. So I removed the nvidia drivers. So far the only difference is, that switching to text console from X is instant --- it took several seconds before to switch back and forth. I will report again whether the crashes still occur.