11.04 - Input not supported!

[d0lt]

Figured it out thanks to trying a few suggestions found elsewhere on this forum.

Seems, for whatever reason, grub, a boot time loader, doesn't use a default graphics mode supported by all monitors at boot time. I'm sure glad BIOS companies haven't made this move...

Anyway, for those that follow, here's what I did.

1. To boot into ubuntu, immediately after the BIOS messages flash, I press the arrow down key, then the enter key.

2. Once a menu appears with some entries showing garbage characters, arrow up and down a few times to refresh the choices so they can be read. Choose the choice that says something like "run in safe graphics mode".

Note: If you get a blue screen at this point labeled MEMTEST, then you've invoked the wrong thing. Hit ESC key and reboot and try #2 again.

3. If asked after #2, choose the message with something like "run in safe graphics mode just this one time/session/boot"

4. When you get unix booted, go to a terminal session. If you have classic ubuntu running, choose "Accessories", then "terminal".

5. Do the following:

After you boot into Ubuntu, please do this:

gksudo gedit /etc/default/grub

and change this line:

#GRUB_GFXMODE=640x480

to this:

GRUB_GFXMODE=640x480

Then save and exit the document.


Then do:

sudo update-grub

The Hedge

[pannerrammer]

Your solution worked for me too (22" LG monitor). I then tried this instead

GRUB_GFXMODE=1280x1024

and got a slightly better boot display

[kudey]

when i minimize firefox and restoe the pc freezes and logs off...i used to get the input not supported and i tried the above mentioned codes...m dual booting ubuntu 11.10 alongside windows 7..please help..m thinking of changing to linux but this is a very serious issue..