Grub display is corrupt
Bug #60043 reported by
Dave Brady
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| grub (Ubuntu) |
New
|
Undecided
|
Unassigned | ||
Bug Description
Binary package hint: grub
I have a Toshiba Satelite M50-Y2K3 laptop. I have dist-upgraded to Edgy from Dapper. One of the unfortunate side-effects seems to be that grub seems to have difficulty accessing the framebuffer. When I first boot up the computer, grub functions properly, but is almost impossible to read, as there are vertical white bars going throughout the screen. Once the Edgy kernel is loaded, the problem goes away, but grub has severe display problems.
Revision history for this message
| Dave Brady (matter-grey) wrote | #1 |
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Sorry, just an update to this. Since the display is so corrupt on boot, I was misunderstanding what was going on, and I have re-evaluated this. I believe it happens like this:
Grub either does not initialize the display, or initializes an incorrect display (I have since tried vga=792 with no success). It says that it's entering stage 1.5, and then goes to a blank screen. The menu functions properly, as I am able to select menu options with the keyboard at this point and boot the correct kernel/OS. I just cannot see it.
Since the grub has not correctly initialized the display, when the kernel framebuffer is loaded, the display remains corrupt until X is loaded.
However, Usplash works fine, although I'm not sure if the status messages were deliberately removed or not, as this is my only Edgy box. But I am unable to view console output with Ctrl-Alt-F1, or any of the others.
Although everything works, I think this is a rather critical bug, as grub is not overly useful without a display.