Re: suse 8.2 and my lcd monitor q
From: Paul Hands (phands_at_ThisNewsGroupOnly.bomb)
Date: 08/07/03
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Date: Thu, 07 Aug 2003 15:22:57 +0100
macosx wrote:
> "Paul Hands" <phands@ThisNewsGroupOnly.bomb> wrote in message
> news:3f30ca7d@news.cadence.com...
>> buggs wrote:
>>
>> > I've got a ViewSonic VG800 lcd monitor. When I install Suse, what is
>> > better to choose, 1280x1024 lcd 60hz or Vesa 1280x1024 60hz? cus i
>> > think what happens is either one i select, when it reboots and stuff
>> > the
> screen
>> > flickers like crazy like a tv is on the fritz and when it's booting and
>> > stuff. but when it gets to the desktop and boot screen like kde boot
>> > screen thingy it's fine. the screen maybe not like flickers, but maybe
> it
>> > does. it's crappy video and just all messed up kind of like a tv is on
> the
>> > fritz. I'm sorry i can't be more descriptive. Can anyone suggest
> something
>> > to me please?
>> Hi,
>>
>> I use LCD monitors too, and there were similar problems initially. It
> turns
>> out that, by default, SuSE uses a lower resolution (640x480 or 1024x768)
>> screen during boot time. It only switches to the higher resolution
>> later,
>> when X is started. LCD monitirs don't really work at multiple
>> resolutions
>> - they are designed to work best at one setting. For yours, 1280x1024 is
>> best, and 60Hz is fine too. AFAIK, LCD or VESA will make no difference.
>>
>> It is possible to make SuSE use a higher resolution at boot time - it's a
>> selectable option on the boot screen at 8.2.
>>
>> Once in X, you should use the monitor's auto adjust feature to get the
> best
>> picture. It's a front panel menu option, and in my case, made a huge
>> difference.
>>
>> HTH,
>>
>> Paul
>
> Paul, how and where do you set Suse 8.2 to use a different setting for vid
> durring booting? I'd like to try that when I install 8.2 as a test soon.
Hi,
I seem to remember that you could hit a function key to select a resolution,
but I've modified my boot sequence quite a bit (bootsplash, self compiled
kernel, etc). The kernel needs to support framebuffer, but this is a
default with SuSE kernels.
However, in /boot/grub/menu.lst (assuming you use GRUB), you will see a
kernel line (or lines) like the following :-
title SuSE linux 8.2 standard
kernel (hd0,0)/boot/vmlinuz root=/dev/hda1 vga=0x31a splash=silent
showopts
initrd (hd0,0)/boot/initrd
The interesting bit for this discussion is vga=0x31a.
This sets the resolution and colour depth as follows :-
| 640x480 800x600 1024x768 1280x1024
----+-------------------------------------
256 | 0x301 0x303 0x305 0x307
32k | 0x310 0x313 0x316 0x319
64k | 0x311 0x314 0x317 0x31A
16M | 0x312 0x315 0x318 0x31B
So 0x31A would be 1280x1024 with 16-bit color.
You can set the option to vga=ask, and you will get prompted at boot time,
but I prefer just to set it in the boot loader, as it's not something I
change often.
I believe you can do the same thing with LILO.
HTH,
Paul
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