Upgrade Asus X55C to FHD, possible? Informations inside

Hello, I have this old Asus Laptop, it's based on X55CR motherboard, the cpu is an i3 and is directly soldered to the MB, the GPU is Intel HD3000.
The LCD panel is https://www.panelook.com/LTN156AT24-P01_Samsung_15.6_LCM_overview_15236.html
I modded my bios to remove MSR lock (for MacOS) and unhide "chipset" menu.
From within chipset menu I can access some LCD control submenus as follow in pictures.
As far as I know the LVDS cable should be single channel at the moment. The screen is 40 pin.
https://www.asusparts.eu/en/asus-14005-00620200
Somebody on a post on this forum mentioned the lanes on the motherboard, I don't know how to check how many are there, maybe someone can tel from the pics I posted.
Question is, does anyone know what do I need to replace the screen with a FHD one?
And is it even possible?
Maybe with this cable https://www.waresphere.com/store/for-asus-n53-n53jg-n53sn-n53df-lcd-lvds-cable-14g22101620v-fhd.html
and this screen https://www.laptopscreen.com/English/model/ASUS/N53S SERIES/?set_currency=EUR
?

Here is a comparison between the original panel and the one on n53s which is samsung too.
They seem pretty identical to me. Does anyone have an idea? Could this work?

https://www.panelook.com/modelcompare.php?ids=15236,15615

Thanks









This is the motherboard:

 

Anything is possible if you set your mind to it.

They appear to be the same size and pins so it should be a simple swap. I was figuring they wouldn't be readily available but, it seems they are in the typical $80 range.

 

There are many compatible models for the 1920x1080 listed under the https://www.panelook.com/modeldetail.php?id=15615 .. I found they are more or less 58 euros from UK. Anyway the problem here is understanding 1) is the the original LVDS cable 1 or 2 channels? 2) Can I swap it with the n53s series LVDS cable which is 2 channels? 3) Does the MB have sufficient lanes anyway?

 

Google the CPU and look at the specs for displays. It will give you an idea on the resolutions and capabilities. W/O that info it's hard to tell you the answer to any of the questions regarding channels / etc. MOBO doesn't really dictate the lanes available it's based on the CPU/GPU though sometimes cheaper models don't provide the solder points to allow a higher capacity to be used.

Since this is a 10 year old laptop.... it's a 60 euro experiment vs buying a new laptop. If you need to swap the LVDS cable it's another $20 typically.

 

HD3000 is capable of FHD.
The CPU is https://ark.intel.com/content/www/i...ore-i3-2370m-processor-3m-cache-2-40-ghz.html
it lists gfx output as eDP/DP/HDMI/SDVO/CRT .. however the PC now uses LVDS so I don't really know what that information is good for.

 

@Chriz74 if the laptop was available in configurations with FHD screens, FHD screen will work. Otherwise, tou need to find and study the motherboard schematics to determine the number of lanes, and LVDS cable pinout if there are indeed 2.

 

Can’t it be checked some way in linux via software?

 

@Chriz74 no, it can't.

 

I found a used N53S full hd screen with cable. I’ll post results here.
The screen is the one on the right.
https://www.panelook.com/modelcompare.php?ids=15236,687

 

With it's LVDS cable it doesn't turn on. With the laptop one it turns on but image is not crisp.

 

So, it sounds like the LVDS cable either doesn't work or has a different pin out than the Laptop is providing. Saves you $20 for now.

Since it's used there's a potential issue with the panel vs a new one.

Cabling typically doesn't change much as to the pins / AWG of the physical wires. Of course the # of pins on either end can change to another # depending on the panel / MOBO.

It could be the panel, could be the cable, could be the modified bios.

Potentially might be the drivers even though they worked before / after replacement. I've had issues with adjusting the brightness on my new panel a couple of times and ran DDU to remove them completely and reinstall again and it fixes the issue. Not really sure why the driver replacement fixes the max brightness @ 50% or what causes it to stick at 50% or less but it works.

With the diagonal refresh lines showing up in the photo it might be a bad refresh rate being selected causing some of the issue. Otherwise it's trial and error with another panel/cable until you find one that works.

 

The refresh rate for both screens is 60hz by specs. The connectors have different configurations:
The 1366 is LVDS-40P1C6B-040B and the 1920 LVDS-40P2C6B-005A.
No idea what it means but maybe it would be possible to reconfigure the original cable to match the laptop one that probably is not dual channel.

 

Well for the connectors it would appear one of them is configured for 1Channel (40P 1C6B) and the other for 2Channel (40P 2C6B) looking at the naming.

So, the blurriness could be that there is insufficient bandwidth to push the full signal from the GPU to the display.

In the single channel configuration the cable OEM may have simply not wired all of the pins saving them 2 cents.

I will say this.... "where there is a will, there is a way" when it comes to reconfiguring cabling. There's all sorts of adapters and stuff that you can use in line or if you're handy with soldering you can do a DIY as well. The downside of a DIY is if you mess it up you need a backup cable to be functional again or keep trying to move the wires until it works again.

When I was doing my panel swap there were 2 30 pin cable options in the service manual and a 40 pin option as well. Whether or not there was physically a difference in the wire layout on the 30pin options could be debated w/o physically examining them it's hard to say.

Getting a 2 channel cable doesn't seem to be hard to find. Matching up both ends / length sometimes can be an issue.

 

Could look at the original cable wiring and add two cables to the working one also looking at panels datasheet to check diffs.
...
it doesn't seem easy at all to modify a cable