On Tue, Mar 2, 2010 at 4:55 PM, Harry Putnam <rea...@newsguy.com> wrote: > For quite a long time I've been using things like: > vga=0x31A > > On the kernel line in grub.conf > > Its a hexidecimal system drawn info in this (partial) chart I found > somewhere in the kernel documentation long ago. > > ## 640x480 800x600 1024x768 1280x1024 > ## 256 0x301 0x303 0x305 0x307 > ## 32k 0x310 0x313 0x316 0x319 > ## 64k 0x311 0x314 0x317 0x31A > ## 16M 0x312 0x315 0x318 0x31B > > I've used kernel lines like below in grub.conf: > (asterisks added) > kernel /vmlinuz root=/dev/hda5 ** vga=0x31b ** video=vesfb:mtrr:3,ywrap > > For a very long time. (On occasion I've needed a smaller resolution > and used 0x317) > > But on two recent installs of gentoo as vmware guests, that kind of > entry isn't doing any good and I'm still being prompted to make a > choice. > > When I hit <enter> as directed a largish chart of what look to be > octal based settings, flashes by and only the last portion of it > remains visible. > > It has choices like 340, 341 and many other three digit offerings from > a large chart that shows the resolutions you get with the 3 digit > choices. > > I was unable to find this chart by grepping in the kerne//Documentation > directory. > > Where does the boot process access that chart? > > And why is it that the hex system is ignored and this other system > offered at boot? > > I'm successfully using the hex system on my main gentoo machine... but on > the two recently installed gentoo vmware guests it doesn't work. > > It may be relevant that these installs are console only... no X.
>From linux/Documentation/svga.txt: ** Short intro for the impatient: Just use vga=ask for the first time, ** enter `scan' on the video mode prompt, pick the mode you want to use, ** remember its mode ID (the four-digit hexadecimal number) and then ** set the vga parameter to this number (converted to decimal first). HTH :)
