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<H4>By Jim Dennis, Ben Okopnik, Dan Wilder, Breen, Chris, and...
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<H3 align="left"><img src="../../gx/dennis/qbubble.gif"
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>Shedding Light On A Monitor's Troubles</H3>
<H4 ALIGN="center">We're still in the dark, here.</H4>
<p><strong>From Joshua J. Wingstrom
</strong></p>
<p></strong></p>
<!-- sig -->
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<!-- ::
Shedding Light On A Monitor's Troubles
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We're still in the dark, here.
:: -->
<p align="right"><strong>Answered By Jay R. Ashworth, Robos, Ben Okopnik, Faber Fedor, Mike Ellis,
Yann Vernier, Heather Stern, John Karns
</strong></p>
<blockquote><em><font color="#000066">This is reply to (<A HREF="../..//issue77/tag/2.html"
>http://www.linuxgazette.com/issue77/tag/2.html</A>)
-- Heather</font></em></blockquote>
<blockQuote>
I think you are looking in the wrong direction for the solution to this
problem. The problem appears to be with Bill Rust's hardware. My
brother is experiencing the exact same problem with a mandrake system
(8.0, 8.1 and 8.2 -- it has occurred on all of them). We have swapped
hardware in and out of the system and the problem only occurs when his
Geforce 2 TI/AGP w/64DDR (same is in Bill's system)
is installed. Something happens when the kernel boots that causes the
screen to go blank until login. It has nothing to do with X-Windows or
SysV init and it only happens with this video card. GeForce3's and
TNT2's work okay in the same system.
</blockQuote>
<blockQuote>
I will try to recompile his kernel next time I see him, but that may not
be soon as I live in Hawaii and he is in Indiana.
</blockQuote>
<blockQuote>
I hope this helps, sorry I don't have a solution.
</blockQuote>
<blockQuote>
Good-luck,
Josh Wingstrom
</blockQuote>
<blockQuote>
If someone solves this problem could they e-mail me the solution at
<A HREF="mailto:joshwingstrom@users.sourceforge.net"
>joshwingstrom@users.sourceforge.net</A>. Thanks
<IMG SRC="../../gx/dennis/smily.gif" ALT=":-)"
height="24" width="20" align="middle">.
</blockQuote>
<blockquote><IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [Heather] And you could send a copy to <A HREF="mailto:linux-questions-only@ssc.com"
>linux-questions-only@ssc.com</A> while you're
at it, so we could publish what's really happening with that.
</blockquote>
<blockQuote>
<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [jra]
I'd bet cash there is a PCI VGA chipset on the mobo, and the BIOS preference is not set to AGP.
</blockQuote>
<P><STRONG>
<IMG SRC="../../gx/dennis/qbub.gif" ALT="(?)"
HEIGHT="28" WIDTH="50" BORDER="0"
>
Do you know how to test for this?
</STRONG></P>
<blockQuote>
<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [jra]
It's a switch in the bios setup. Not sure which screen...
</blockQuote>
<blockQuote>
<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [Robos]
Yes, hold &lt;del&gt; during bootup and look what it says in the menu
<IMG SRC="../../gx/dennis/smily.gif" ALT=";-)"
height="24" width="20" align="middle">
There are also some bios-exploration tools (look at SourceForge) but I
guess thats rather hard to do
</blockQuote>
<blockQuote>
<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [Ben]
To elaborate a bit further, you need to look at your BIOS settings. In
some cases, as Robos says, you need to hit "delete" at the beginning of
the boot; in some cases, though, it could be &lt;F2&gt;, &lt;Alt-F10&gt;, &lt;Alt-S&gt;...
I've even seen a BIOS that required the &lt;Ins&gt; key (anybody know of
others?). Hint: look for a message that says something like "Press $FOO
to enter setup" (not all BIOSes do this, but most do).
</blockQuote>
<blockQuote>
Also note that there are a number of motherboards (despite Jay's bet)
that require moving an actual jumper to enable/disable the on-board
video, etc. There's lots of variation out there; The World Is A Very Big
Place.
</blockQuote>
<blockQuote>
<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [Faber]
I've seen &lt;F1&gt; (old IBM 486) and the &lt;DEL&gt; key.
</blockQuote>
<blockQuote>
<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [Mike E.]
So I'll add &lt;ALT-ENTER&gt; on an old in-Compaq-ible machine, and &lt;ESC&gt; for my
laptop. I'm pretty certain I've also used &lt;F1&gt;, but I can't place where.
</blockQuote>
<blockQuote>
<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [Yann]
And, of course, Ctrl+Alt+S. Compaqs are also liable to use F8. Dells go
in the F2 group. This is one of the very messy points of PCs, but it has
become better... used to be the setup program was a dos executable,
usually misplaced and model specific. Toshiba's T1000 managed to pull
off having a DOS executable in ROM... they also threw in DOS 2.11 there.
</blockQuote>
<blockQuote>
<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [John K.]
On most Compaq machines I've used including 2 Presario laptops, it was
F10.
</blockQuote>
<blockQuote>
<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [jra]
Tosh laptop. On my Portege, it's ESC then F1...
</blockQuote>
<blockQuote>
<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [Ben]
You know, the above could be a useful little reference list. Not that
it's guaranteed to be 100% complete, but still. If Heather puts this one
into the "publish" queue, I know one thing that's going into the
Knowledge Database for sure...
<IMG SRC="../../gx/dennis/smily.gif" ALT=":)"
height="24" width="20" align="middle">
</blockQuote>
<blockQuote>
<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [Robos]
Yep, exactly my thinking. Didn't know that is was such a mess...
</blockQuote>
<blockquote><em><font color="#000066">Mandrake comes with these neat magic wands to wave around, so a sweep
of it and...
-- Heather</font></em></blockquote>
<blockquote><IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [Heather] Voila, if we can't really answer the question, at least we can offer a
great cheat card for beating your head against the keyboard, err,
finding your way into the BIOS by its idea of the front door. Also for
reference, some people call it the CMOS (because that's the type of chip
the options are stored in) and Macintosh fans have a tendency to call it
parameter RAM or p-ram.
</blockquote>
<blockquote>For anything where you suspect hardware to be more involved than
software, it can be worthwhile to at least look at the CMOS settings.
And I've had more than one encounter where simply telling it to save the
settings anew fixed a checksum somewhere, and everything was happy after
that.
</blockquote>
<blockQuote>
<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [Ben]
Isn't it interesting how, as time goes one, the "trivial" ROM size
becomes large enough to accomodate useful stuff? I'd actually read in a
trade journal where someone managed to throw _Wind*ws_ (at least the
parts required for booting it) on a ROM that simply replaces the BIOS
ROM (well, perhaps "supplements" would be a better word; AIUI, there's
still an accessible BIOS there.) Result: a PC that boots into a GUI in
well under 10 seconds (ISTR 4 seconds being bandied about for one of the
machines tested.) Whew.
</blockQuote>
<blockQuote>
<IMG SRC="../../gx/dennis/smily.gif" ALT="&lt;grin&gt;"
height="24" width="20" align="middle"> Not that Linux needs anything like that - the time "cost" of a
single boot in, say, a two-year period amortizes quite nicely - but it
sure would be a cute sort of a thing. Yeah, there's plenty of ROMmed
Linux-based stuff out there, but it tends to be dedicated hardware. A PC
that boots Linux in 4 seconds... sweet.
</blockQuote>
<blockQuote>
<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [John K.]
I'm currently testing a configuration of LTSP, the Linux Terminal Server
Project (www.ltsp.com) which works with etherboot pkg to boot Linux on a
diskless client (using either a floppy disk or an EPROM on the NIC) in
about 10 seconds, including POST. Very impressive - seems to work very
well.
</blockQuote>
<blockQuote>
<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [jra]
Hmmm... is it worth my time investigating that as a mod for my
VNCterminal on ThinkNIC project?
</blockQuote>
<blockQuote>
<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [Robos]
Well, actually Ben, it goes down to 3 secs. Take a look at
<A HREF="http://www.linuxbios.org/"
>http://www.linuxbios.org</A> .
</blockQuote>
<blockQuote>
<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [Ben]
<TT>/Tres/</TT> cool! I should have known.
</blockQuote>
<blockQuote>
<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [Robos]
They use it for a cluster, but it's also available
for Elitegroups K7SEM (all in one mobo with sound, graphics and net
onboard). I'm going to try that "real soon now..".
</blockQuote>
<blockQuote>
Funny thing on the
side: They have to wait for the hdd to spin up
<IMG SRC="../../gx/dennis/smily.gif" ALT=";-)"
height="24" width="20" align="middle">
Thats why they favor flash rom/card.
</blockQuote>
<blockquote><em><font color="#000066">&lt;Ben dons dark glasses and aims a pointer at the Answer Gang's crystal
ball, which projects a refracted image on the white classroom wall.&gt;
-- Heather</font></em></blockquote>
<blockQuote>
<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [Ben]
"Our 'instant-on' technology features an osmium flywheel on
zero-friction ceramic bearings; a 1mA current is enough to sustain
rotation indefinitely. 15mS after a signal is sent to the coupling
solenoid, your HD is up to full speed."
</blockQuote>
<blockQuote>
Don't laugh; this could be the next advance in HD tech. You heard it
here first.
<IMG SRC="../../gx/dennis/smily.gif" ALT=":)"
height="24" width="20" align="middle">
</blockQuote>
<blockQuote>
It'd be a choice bit of hell on the HD spindle (side loading) and the
platters themselves might get a bit distorted after a while, but hey,
you have to suffer in the name of Art.
</blockQuote>
<blockquote><em><font color="#000066">Spindles are so yesterday, as soon as we come up with cheap power.
Oh well, I can dream
<IMG SRC="../../gx/dennis/smily.gif" ALT=":)"
height="24" width="20" align="middle">
-- Heather</font></em></blockquote>
<blockQuote>
<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
> [Ben]
I've got an LTSP CD sitting at home (I'm in NYC teaching a class this
week); never realized it could boot from floppy, I thought you were
required to go with etherboot. I also never knew that it was that quick;
the LTSP folks didn't mention it.
</blockQuote>
<blockQuote>
One thing I really liked, from checking out LinuxBIOS, was that they
had it working on a number of laptops (including RMS's Thinkpad T22).
I've been dreaming about that 15.7" screen on the new Dells and such...
'twould be nice.
<IMG SRC="../../gx/dennis/smily.gif" ALT=":)"
height="24" width="20" align="middle">
</blockQuote>
<!-- end 1 -->
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<!-- *** BEGIN copyright *** -->
<H5 align="center">This page edited and maintained by the Editors
of <I>Linux Gazette</I>
<a href=""
>Copyright &copy;</a> 2002
<BR>Published in issue 81 of <I>Linux Gazette</I> August 2002</H5>
<H6 ALIGN="center">HTML script maintained by
<A HREF="mailto:star@starshine.org">Heather Stern</a> of
Starshine Technical Services,
<A HREF="http://www.starshine.org/">http://www.starshine.org/</A>
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