Configuring console screen resolutions in lfs build 6.4
jaiyson at sympatico.ca
Sat Jun 6 06:07:46 PDT 2009
Hello everyone: I was hoping someone may be able to comment on what I
am trying to do with my lfs build.
After building my lfs on a partition I installed on another,
Zenwalks' core build, basically their usual build but without X
windows(consoles only). I noticed that on that build they boot into
a resolution of 100 x 37 (got from stty -a) whereas lfs as is goes
into 80 x25. My goal is to find a way to be able to change the lfs
build to the same resolution or other options that my system is
capable of doing.
What I first did was try different settings of vga=<n> in Grubs
menu.lst file; this had no results.
Then I wrote vga=ask for both Zenwalk and lfs in Grubs menu.lst and
when booting to either Zenwalk or Grub both gave me the same list
of screen resolution choices, although none offered 100 x 37. Even
though with Zenwalk it doesn't offer that choice it still boots into
100 x 37 if I just wait and not make a choice.
Also, in either boot process(Zenwalk or lfs) I tried doing a "scan
for more options" and the system console would blank off and for
about half a minute I would hear a series of monitor clicking on and
off sounds; although at the end it would return to the same menu of
choices saying it could not find other options.
What I have found so far is that the only screen codes that work,
allowing me to change to something other that 80 x 25 are the other
80 x <n> resolution options. I did find on the internet a reference
to the 100 x 37 code but that did not work for me. Options that don't
work just makes my screen go blank with the system doing a bit more
activity then hanging, making me have to reboot; blind typing and
entering some commands doesn't do anything that I have tried so far
like halt or shutdown.
At the moment on my other computer I have an editor program
displaying both config files of Zenwalk and my lfs build side by side
to look at possible differences that I may want to try change.
I don't mind going through this process but it may take a long time
due to my build system being on a older computer which is slow on the
At the moment I don't know much about boot scripts other than
something involved with them when doing chapter 7 in the book. I was
thinking maybe that is where the changes need to be done?
I recently tried the idea to watch the screen closely with the
Zenwalk boot to try and note of what's being displayed just prior to
its change over to 100 x 37 mode. The messages scroll too fast for
me to make any sense of what was being displayed although immediately
after the change over the first things being displayed in 100 x 37
mode is something to the effect of:
SIS 630 frame buffer
fb0fbSIS 630 frame buffer device version 1.8.9
In one recompile I made sure all settings related to SIS(that's the
manufacturer of some chips on my system) were selected but to no avail.
Any suggestions of what I may read to find more info on this matter
or any comments is appreciated. Thank you.
The Zenwalk kernel build is 220.127.116.11
and the lfs kernel build is 18.104.22.168 made using the lfs book 6.4
with lfs livecd: x86-6.3-r2160 but using sources recommended in 6.4 book
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