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Registered Member #902
Joined: Sun Jul 15 2007, 08:17PM
Location: North Texas
Posts: 1040
ok, to help pay for my hobbies I do tech support for a lot of people.
One of the problems I am dealing with is replacing the LCD screen on my uncle's Dell Latitude D520 Laptop. We ordered an OEM replacement for this unit, and I installed it. No picture, I checked my connections, and tried again - nothing. Then I ended up hitting the combination "Fn + F8" (the change display hotkeys) and it works. However, I cannot set the new screen as the default display. The BIOS is not able to, the diagnostics reports error 1000-0321 (no screen detected even though I am reading the error code off of the laptop's screen )
In windows I have no option other that hardware defaults for the display choices
I tried to call the company that sold us the screen, but they haven't called back and my uncle wants to have this computer back soon.
Registered Member #902
Joined: Sun Jul 15 2007, 08:17PM
Location: North Texas
Posts: 1040
cjk2 wrote ...
Try a BIOS reset. A hardware issue could be causing this as well I suppose.
BIOS has no options for this, but I didn't try a full reset (though, except for fast boot and boot order, nothing was ever touched to begin with).
The company called back, and didn't quite understand what was happening - once I explained, the tech support (not customer service thank God) asked around, and tried to find a previous case but the only ones he (and I in earlier google sprees) were special cable problems for LED backlit displays, and a few rare cases from a particular company not in this scenario
in the end, they emailed my uncle a form to have the new screen replaced with a different one to try again (as it turns out, for this model laptop Dell went through about four or so LCD manufacturers - the original was from AU Optronics, the new one Samsung)
the screens are all supposed to work the same, but they are going to send us one from AU to see if it works
my uncle decided to just use another office computer, and let his time away go towards getting the screen mailed to them and have the new one come back, so in the end
-Jimmy
P.S: I thought about using the heavily cracked screen in an Artistic Project, it uses the standard 30 pin interface with an external Inverter, can this be manipulated at all with an AVR or PIC? - not to display full graphics, but to just make an abstract art exhibit
Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4059
interesting, as i ran into the same problem on my aspire one.
it seems that they use a modified i2c interface to identify the panel for the purposes of "setting up" the display driver. you could try removing the (presumably OK) eeprom and transplanting it onto the new panel...
Registered Member #902
Joined: Sun Jul 15 2007, 08:17PM
Location: North Texas
Posts: 1040
Conundrum wrote ...
interesting, as i ran into the same problem on my aspire one.
it seems that they use a modified i2c interface to identify the panel for the purposes of "setting up" the display driver. you could try removing the (presumably OK) eeprom and transplanting it onto the new panel...
no guarantees though, YMMV, etc.
-A
they sent us a panel from the other manufacturer and it worked just fine.
I still do have the busted panel and intend on doing something with it though, who knows.
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Dell Laptop Screen Replacement Issues
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