Ubuntu
linux package

  1. Bug #786563
  2. Comment #2

Comment 2 for bug 786563

Revision history for this message
Elias Schwerdtfeger (nachtwaechter) wrote : Re: "Input Signal Out Of Range" in textmode

I found a possible reason of the problem.

Installed Ubuntu 11.04 with an other monitor, installation w/o problems. Text mode okay, X okay.

Changed monitor (moved the computer to my normal workplace), booted and saw an error message of my monitor saying "Frequency out of range". Heard hard disc activity and waited until X starts. No problem in X, but whenever I changed to text mode with Alt-F1 to Alt-F6, "frequency out of range".

Sounds rather similar to this bug.

After digging two hours in the log files, I realized that grub caused the problem. So I added a line GRUB_GFXMODE=800x600 to /etc/default/grub and ran sudo upgrade-grub. Rebooted and the problem was fixed for me.

In my problem, grub was the culprit.