Re: kms howto - is there one?

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On 2010/03/17 14:54 (GMT-0700) Adam Williamson composed:

> On Wed, 2010-03-17 at 17:35 -0400, Felix Miata wrote:

>> On 2010/03/17 13:46 (GMT-0700) Adam Williamson composed:

>> > On Wed, 2010-03-17 at 16:24 -0400, Felix Miata wrote:

>> >> Used to be able to set vga= on cmdline, and preferred resolution for X via
>> >> xorg.conf. Now (with no EDID/DDC actually available to report display
>> >> characteristics to the KMS kernel), how does one escape from 1024x768 in X -
>> >> prior to starting X? I tried putting PreferredMode in xorg.conf, which failed
>> >> to provide my selected mode in X. I also tried video="VGA-1:1600x1200@60" &
>> >> vga=0x305 on cmdline. That gave 1600x1200 on tty[1-6], which I don't want,
>> >> and (again) 1024x768 in X, which also I don't want.

>> > http://wiki.debian.org/XStrikeForce/HowToRandR12

>> With the speed of change in X generally, and Intel drivers in particular, I
>> was hoping for something (preferably Fedora specific, if Fedora is actually
>> relevant on the subject)

> No, the changes all happen in upstream X. There's nothing
> distro-specific here.

>>  considerably newer than that page's age of 8 months.

> There hasn't been any significant change to the syntax since the change
> documented on that page, which was the introduction of RandR 1.2. The
> information on there is still valid.

>> Also, it's little less cryptic than the man page, with no example what to do
>> about --output when there is one and only one output, 

> Specify that output.

>> or finding out what the
>> output names actually are

> Just plain 'xrandr' will tell you.

>> , or the meaning of <screen> or how to distinguish
>> it from <display>.

> Not quite sure off the top of my head, but you should be able to get it
> working.

This is what happens in F13:
# xrandr --output VGA1 --mode 1600x1200
xrandr: cannot find mode 1600x1200
# xrandr --addmode UXGA 1600x1200
xrandr: cannot find output "UXGA"
# xrandr --addmode VGA1 1600x1200
xrandr: cannot find mode "1600x1200"

On Factory, Cooker and Lucid, I can accomplish what I want. This is from
working Lucid on the same box just a few days ago (but it's using 2.6.32):
http://fm.no-ip.com/tmp/Linux/Buntu/ has xorg.conf and data files, with
xorg.conf.02-1600x1200x120x16bpp-buntu910-intel being the xorg.conf that
works fine in Lucid but not when used in F13.
-- 
"The wise are known for their understanding, and pleasant
words are persuasive." Proverbs 16:21 (New Living Translation)

 Team OS/2 ** Reg. Linux User #211409

Felix Miata  ***  http://fm.no-ip.com/
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