black screen or garbled graphics on boot
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
usplash (Ubuntu) |
Invalid
|
Undecided
|
Unassigned |
Bug Description
Have been using feisty with no issues on this laptop for quite some time. I did not use the laptop for a week or so, but Mon. apr. 2 ran updates which prompted action about a partial dist. upgrade , which went through ok. First reboot progress bar underneath logo immediately after GRUB and prior to login screen resulted in a black screen, no ability to change tty(spelling?). So I hard rebooted and things were ok. Several cold boots since then went fine, but a reboot out of windows caused this time a black screen with garbled colored lines. Have Ubuntu installed from (alpha 2 or 3) with no issues, also installed Kubuntu desktop via synaptic. This was a clean feisty install on a hard drive with a fresh windows install done just before on a new hard drive. (Old one died). IBM thinkpad A30 (non-wireless version). Has ATI MobilityRadeon graphics. Xorg.conf lists "driver" as "ati" and Identifier "ATI Technologies Inc Radeon Mobility M6 LY". This is the stock xorg setup, I have not tinkered with it the xorg.conf, or attempted a proprietary ATI driver (if there even is one for this card). Have had no prior graphics issues with feisty on this machine, nor dapper, edgy, or breezy. I am not sure what other relevant info I can provide. Feel free to contact me if there are any questions. Also, since the init has been changed I am not sure how change to see the verbose screen instead of progress bar after grub, so I am not sure if any errors occurred but will provide any important log files of try to recreate bug and look for init errors or whatever is needed to help. Sorry for not being able to provide more detail on a particular error or package etc. In summary this has happened two times out of maybe 10 boots in last day or so. Both times were on soft reboot, not initial cold boot.
Dear cwhanmsun, thanks for your bug report. Could you tell me what are your grub options? I think I had a similar problem, and the black screen issue seems to disappear if I don't use the vga=791 option.