VGA Port Edid patch for mojave? (T440p)

[ameeno]

Hello Thinkpadders!

I Have a t440p with Mojave/Win10.

the vga port for external displays does not work.

Do you know how i might get it working? My previous laptop the Dell e7440 had HDMI Out + Mini DP so i could comfortably use 3 Screens (laptop + 2 external)

I have read some guides focussed on the x220 Model which has VGA output with an EDID patch, And i wondered if this can be done in Mojave with an i7 - 4712MQ processor.


Basically I have switched to this laptop to get a better CPU, but the VGA not working is a huge blow after using 3 screens previously.

Could a custom EDID patch work to get the VGA port working???

Thanks in advance.

[RealBlackStuff]

Under W10 apparently Hyper-V can cause trouble, but I don't know if that also applies to mojave.

[dr_st]

No patch should be needed to get a VGA port working.

What is your exact display configuration?

Is the laptop docked?

Does the VGA port work before OS boot, in BIOS for example?

[ameeno]

Laptop not docked.

VGA does not work (Using whatevergreen) can only output to LCD and mini DPI.


i would like Minidpi + VGA + Lcd.
No dock involved.


I was told on other forums that macs dont support VGA, but it seems that they supported vga in the past.

[dr_st]

Dunno about Mac, but Windows certainly should support 3 displays on a T440p.

Is it a problem with number of displays or specifically with VGA? For example can you run VGA output only (LCD off and no miniDP)?

In a triple display configuration, does Windows at least detect the third display or is it like there is no VGA cable?

[ameeno]

it works on Linux and windows, but not MacOSX

trying to get it to work on mac, hence the post in *THIS* board

[dr_st]

it works on Linux and windows, but not MacOSX

trying to get it to work on mac, hence the post in *THIS* board

Sorry, it wasn't clear from your first post. You did say Mojave in the title, but mentioned Win10, and it wasn't clear to me until now that it works in Windows, but not in Mojave; this is indeed very likely to be something Mac-specific that is beyond my knowledge.

P.S. Many people, yours truly included don't browse by forums, but by 'recent posts'; I often don't pay attention which forum a post is in.

[ameeno]

Understood, Yea linux + Win10 works but on osx i cannot get the vga to work and i dunno how.

[axur-delmeria]

Do Macs still have a VGA port? Is it possible that OS support simply does not exist?

[Thinkpad4by3]

Do Macs still have a VGA port? Is it possible that OS support simply does not exist?

Apple did have VGA but I believe it was through a Mini-VGA port and it had a short run of ~2000 -> ~2005. This shouldn't stop the VGA port from working in theory, as any graphics card in a Mac Pro tower machine with a VGA card would have to be supported. If the graphics card works, there is no reason the VGA port can't work like any other output.

[ameeno]

I have been told by lots of people on hackintosh forums that VGA is not compatible with Modern macOS.


What apple seems to do is if the machine is too old, it will not allow you to update to the latest mac.

SO the latest MacOS Versions can only go on hardware that does not have VGA.

Basically, Mini Dp to vga works, but VGA -> VGA not working