4540S LCD Screen (1080p replacement)

[RehabMan]

Hi RehabMan,

I have a 1 ch display cable and 768p display

Without doing this step
¨1. Remove /Extra/dsdt.aml. If you have a high-resolution screen, install Mini-SSDT-DualLink.aml to /Extra/ssdt-1.aml. Then reboot. After reboot, you are running without a DSDT (no audio, WiFi, battery, etc)¨
which one of these will work?

1. replace the display cable with a dual channel one
2. replace the display with a full HD one

I don´t think I´ll manage to get them both in the first place so the question arised

Or does any of those require your step one?


Thank you

You need to replace both the screen and the cable at the same time. Then follow the instructions for re-patching DSDT.

 

[renks79]

You need to replace both the screen and the cable at the same time. Then follow the instructions for re-patching DSDT.

Thanks a lot RehabMan.

Don´t know a thread to address this. I found out video ram memory could be extended with some tweaks on macs. First someone noticed it´s only faking the readings, but in the posting 18 here it seems it works
http://forums.macrumors.com/showthread.php?t=1766384

Does this work for probooks?

Thank you

 

[RehabMan]

Thanks a lot RehabMan.

Don´t know a thread to address this. I found out video ram memory could be extended with some tweaks on macs. First someone noticed it´s only faking the readings, but in the posting 18 here it seems it works
http://forums.macrumors.com/showthread.php?t=1766384

Does this work for probooks?

Thank you

Off-topic, but yes you can control the amount of video memory with patches to the framebuffer kext.

 

[npx]

I resolved my HDMI issue by doing a clean reinstallation following the guide - my previous installation was kinda hacked together. Native resolution isn't available on my 1440x900 external display, but 720p works fine.

Now I have issues with artifacts on my screen when I boot without AC plugged in. I still have minor artifacts on the very top of my screen when i boot with AC power, again this kinda solves itself when I get to the OSX desktop, but with only the battery my screen is illegible until I get to my desktop.

Doex this sound like a damaged cable? I'm planning to replace my battery, but I'm not very excited about possibly redoing the cable installation.

 

[RehabMan]

I resolved my HDMI issue by doing a clean reinstallation following the guide - my previous installation was kinda hacked together. Native resolution isn't available on my 1440x900 external display, but 720p works fine.

Now I have issues with artifacts on my screen when I boot without AC plugged in. I still have minor artifacts on the very top of my screen when i boot with AC power, again this kinda solves itself when I get to the OSX desktop, but with only the battery my screen is illegible until I get to my desktop.

Doex this sound like a damaged cable? I'm planning to replace my battery, but I'm not very excited about possibly redoing the cable installation.

Download patchmatic: https://bitbucket.org/RehabMan/os-x-maciasl-patchmatic/downloads/RehabMan-patchmatic-2015-0107.zip
Extract the 'patchmatic' binary from the ZIP. Copy it to /usr/bin, such that you have the binary at /usr/bin/patchmatic.

In terminal,

rm -R ~/Downloads/RehabMan
mkdir ~/Downloads/RehabMan
cd ~/Downloads/RehabMan
patchmatic -extract

Post contents of Downloads/RehabMan directory (as ZIP).

Also, post ioreg: http://www.tonymacx86.com/audio/58368-guide-how-make-copy-ioreg.html. Please, use the IORegistryExplorer v2.1 attached to the post! DO NOT reply with an ioreg from any other version of IORegistryExplorer.app.

And output from:

kextstat|grep -y acpiplat
kextstat|grep -y appleintelcpu

 

[renks79]

Off-topic, but yes you can control the amount of video memory with patches to the framebuffer kext.

Thank you.

Just in case, how can you do a proper revertion to standard settings?
I´m asking this because here, at posting 13 it seems it takes some kext repairing, utility add-on and so.
http://forums.macrumors.com/showthread.php?t=1766384&highlight=hd3000+vram

Can you please create a thread for extending vram on hd3000 or to be more generic extending (increasing) vram if fine?
It might be useful for it´s a lot to talk about and adjust there. First would be is it worth it?
Some say no - the extra ram is for texture memory, right for playing 1080p video in full screen. Main ram is slower that discrete video ram
Some say yes - posting 20 here says so
http://forums.macrumors.com/showthread.php?t=1766384&highlight=hd3000+vram

Can you please show the right steps to safely do the tweaks from that page?
http://forums.macrumors.com/showthread.php?t=1766384&highlight=hd3000+vram

First would be the terminal command thing in posting 1 and then Info.plis edit in posting 18?
How it´s made the extra ¨patch and fix the extensions with Kext Utility¨ mentioned in the same posting?
Some say this might happen in between - posting 13
http://forums.macrumors.com/showthread.php?t=1766384&highlight=hd3000+vram


Thanks a lot

 

[npx]

Post contents of Downloads/RehabMan directory (as ZIP).

Done. Thanks! I'm thinking this might be a hardware problem :/

 

[RehabMan]

Thank you.

Just in case, how can you do a proper revertion to standard settings?
I´m asking this because here, at posting 13 it seems it takes some kext repairing, utility add-on and so.
http://forums.macrumors.com/showthread.php?t=1766384&highlight=hd3000+vram

Can you please create a thread for extending vram on hd3000 or to be more generic extending (increasing) vram if fine?
It might be useful for it´s a lot to talk about and adjust there. First would be is it worth it?
Some say no - the extra ram is for texture memory, right for playing 1080p video in full screen. Main ram is slower that discrete video ram
Some say yes - posting 20 here says so
http://forums.macrumors.com/showthread.php?t=1766384&highlight=hd3000+vram

Can you please show the right steps to safely do the tweaks from that page?
http://forums.macrumors.com/showthread.php?t=1766384&highlight=hd3000+vram

First would be the terminal command thing in posting 1 and then Info.plis edit in posting 18?
How it´s made the extra ¨patch and fix the extensions with Kext Utility¨ mentioned in the same posting?
Some say this might happen in between - posting 13
http://forums.macrumors.com/showthread.php?t=1766384&highlight=hd3000+vram


Thanks a lot

Since you can increase the VRAM simply by adding RAM to the computer (8GB=512MB VRAM), I don't think tweaking the framebuffer kext is a good idea.

 

[RehabMan]

Done. Thanks! I'm thinking this might be a hardware problem :/

I do not need a ZIP containing the patchmatic binary (I wrote it).

Please read carefully.

 

[npx]

I do not need a ZIP containing the patchmatic binary (I wrote it).

Please read carefully.

Oh, I'm sorry, I just sloppily named the patchmatic output "patchmatic" - that's not actually a binary!