On 4/20/2009 2:47 PM, Valmor de Almeida wrote:

but no luck (that is I get the 80x25 console). The only working format
appears to be

kernel /boot/vmlinuz root=/dev/sda3 vga=xxx

This is the only correct syntax for the intelfb device, because of

Apr 20 14:27:54 dcpl-lpt1 [ 0.173678] intelfb: Non-CRT device is enabled
( LVDS port ). Disabling mode switching.
Apr 20 14:27:54 dcpl-lpt1 [ 0.173703] intelfb: Initial video mode is
1024x768...@60.
Apr 20 14:27:54 dcpl-lpt1 [ 0.174157] intelfb: Changing the video mode
is not supported.

these log messages. I assume this is a laptop (or else your intelfb is very confused). For some reason that I don't fully understand, but assume is a good one, the intel fb device cannot change the video mode on a laptop display. The vga parameter actually gets the kernel to change the video mode much earlier, so the intelfb driver can keep using the same one.

I typically include both vga= and video= lines in my grub command to get this to work.

--Mike

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