WARNING: From here on out, things will get very technical, because I'm a hard-headed idiot who refuses to give up
This laptop (and seemingly most Acer's) has a WXGA LCD cable. This limits the data throughput to 1280x800. However, once you install any WXGA+, WSXGA, or WUXGA LG LCD into it, Windows will show higher resolutions as available. That is because all the hardware it can see (LCD + video chipset) look perfectly compatible to it. What it can't see is the LCD cable. So when you apply the higher resolutions, you get a sort of washed-out graininess, sometimes with lines.
Does that mean we're out of luck? Aw, heeeell no!
Let's look at exactly why this occurs, electronically. I give you the standard WUXGA/WSXGA+ dual channel 30-pin LCD pinout:
1 ground
2 +3.3v
3 +3.3v
4 +3.3v
5 nc/key
6 DDC Clock
7 DDC Data
8 A D0-
9 A D0+
10 ground
11 A D1-
12 A D1+
13 ground
14 A D2-
15 A D2+
16 ground
17 A Clock-
18 A Clock+
19 ground
20 B D0-
21 B D0+
22 ground
23 B D1-
24 B D1+
25 ground
26 B D2-
27 B D2+
28 ground
29 B Clock-
30 B Clock+
Now, the green highlighted connections are the only ones present in our WXGA Acers. Notice what's missing? Right, the entire second channel (B D0, D1, D2, B Clock). This is why things look poorly on the screen- half the data is physically missing.
So how to solve this? As the pins physically aren't there on either end of our connectors, tossing in extra wires wouldn't work very well. So I see one of two options: first, replacing our LCD cable with a full 30-pin cable. The big difficulty here is that while the 30-pin LCD connector is standard, our motherboard connector is not. Plus this also runs the webcam (usb) and connects to the inverter. We start messing with that, and things could get ugly.
The Acer Aspire 8920G has WUXGA resolution and a webcam, so its lcd cable might work. Or not. Anyone care to track one down and buy it to see? By the prices I see... no thanks. Not to mention the motherboard end of the plug likely being wired different, even if we get lucky and it's the same physical socket.
Here's how I plan to solve it. The existing WXGA cable (Wistron COLUMBIA 15.4" WXGA LCD+CCD CABLE 50.4T329.001, btw) has plastic release tabs on both ends; in layman's terms, the wires can easily be unhooked from both connectors, if you're careful. So instead of tracking down a perhaps mythical connector which likely won't work, I will just purchase a second standard WXGA cable. Then I'll unwrap / unclip some wires, add them to mine (restoring the missing data channel), and viola! Full 30-pin connector.
If this does in fact work out- electronically, it all should- I may go into business making modded Acer cables to allow us all 1900x1200 resolution on our budget machines
As far as screens go: In my testing, every LG LCD I've tried works, no matter what the physical size or resolution. Perhaps other brands work, but I figured I'm taking enough chances experimenting here. I finally ended up with a new WXGA+ glossy LP154WP1(TL)(A3) for my build. Other than the screen's inverter jack being the wrong size (quick plastic plug swap fixed that) it fits perfectly. Once my cable's done, the bright, clear 1440x900 will be nice, and I could upgrade to anything higher should I want to later.
I know I keep promising it, but really- pictures to come of this wacky endeavor as work progresses.