Tech Support > Computer Hardware > Laptops/Notebooks > XGA to SXGA+ screen upgrade on HP NX6110 didn't quite work...
XGA to SXGA+ screen upgrade on HP NX6110 didn't quite work...
Posted by bstretch@mindspring.com on April 13th, 2008


I bought a used LG Phillips SXGA+ 15" LCD screen (pulled from a HP
NX6110) to replace the smashed LG Phillips XGA screen on the HP NX6110
I'm refurbishing. It didn't quite work: only every other column gets
displayed, or something like that, a bit fuzzy too. I suspect that I
need the monitor cable specific to the SXGA+ screens instead of the
XGA cable I reused (which is marked as such). I flashed in the latest
BIOS that added support for several new panels to no effect. WinXP
recognizes the screen as 1400x1050 res. I'm also wondering if the
higher res screen uses a different inverter?

Am I guessing right or is there something else I should look for?

Posted by bstretch@mindspring.com on April 14th, 2008


On Apr 12, 8:13*pm, bstre...@mindspring.com wrote:
The vendor thinks the screen is simply bad so he's sending me a new
one. He says that the SXGA+ screens use the same cables and inverters
as the XGA screens. I was overthinking things. I can see where the
problem with the current screen could have been missed if it wasn't
tested at full res, where it's much more obvious than it is in
textmode (BIOS startup, etc). Hopefully I'll get the new screen
Wednesday.

Posted by Quaoar on April 15th, 2008


bstretch@mindspring.com wrote:
There is often (usually, almost always?) an eight-bit dip switch on the
mainboard that selects the notebook screen default resolution. Since
you've had the case open, look for it, then see if you can find any info
on what the bit settings are for the higher resolution screen. If the
switch is there, it is "only" 256 trials to find the correct setting.

Q

Posted by bstretch@mindspring.com on April 15th, 2008


On Apr 14, 8:03*pm, Quaoar <qua...@marcabfleet.net> wrote:
Hmm... I haven't found that yet, but the BIOS release notes say that
the BIOS has been updated several times to support new LCD panels.
Perhaps resolution setting is handled in software now? Like what
they've done with CPU multiplier and voltage settings. Used to be you
just flipped a few DIP switches when a new CPU came along, now your
BIOS either knows how to recognize the new core stepping or you're
hosed.

The vendor thinks that the panel is simply bad so he's sending me
another one. He's probably right. He did confirm that I have the
right cable and inverter.

Posted by bstretch@mindspring.com on May 9th, 2008


On Apr 14, 10:54*pm, bstre...@mindspring.com wrote:
It helps to do the correct Google search:
http://www.pchub.com/uph/laptop/235-...Cable-15-.html
Obviously it makes sense to leave a few pins out of the XGA cable
rather than make one cable that works with every screen...

I just ordered the correct cable from an eBay seller. Should get here
mid next week. All this agony because HP wanted to save a few cents
per frickin' cable.


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