Hervé

You're gonna have to tell us which external display is detected. Somehow, I doubt the VGA output can properly work (it's probably wired to the DVI port, hence the mirroring). Bear in mind that there's been no support for VGA since Ivy Bridge HD4000 era and it could last be patched on SandyBridge HD3000 platforms (granted some Haswell laptops with HD4400 graphics do have VGA working OOB but these usually had a dGPU too).. Use IORegistryExplorer to identify the output port of the detected display or plug only 1 at a time and see which gets detected. Though one would have expected you to have done this already. If you want 2 x independant external displays, I'm pretty sure you'll have to use DVI and/or DP on the PR03x and/or HDMI on your laptop. You forgot to mention whether your system has SKL iGPU only or if it's fitted with the AMD dGPU too. I would not expect VGA output in the former case but you might get it OOB (like with some Haswell laptops) in the latter case. So, post your graphics specs or add your E5470 specs in your signature (which is the desired mode on Hackintosh forums).

As I said, move all your add-on kexts to /L/E, repair permissions and rebuild your cache. Your DSDT already has a PNLF device that seems properly defined so I'd say all looks Ok on that front. Personally speaking, I don't use the IntelBacklight or IntelGraphicsFixup kexts on my Ivy Bridge/HD4000 E6230 laptop and all is Ok regarding LCD brightness and its settings bar. Why don't you try without?

Check what add-on kexts you had previously installed in /S/L/E and/or /L/E. These may clash with kexts you inject from Clover EFI folder. Ideally, move (not copy) your Clover kexts to /L/E to cache them. It's much better than injecting kexts.

Your DSDT injects layout 3. Your Clover config shows AppleHDA patches for ALC269. No idea about the dummy ALC269 kext for codec definition, you've not mentioned it. I can only assume you previously had audio working under the previous version of Sierra so make sure to rebuild your cache because that's what Clover patches. https://osxlatitude.com/index.php?/topic/9961-how-do-i-repair-permissions-and-rebuild-the-cache-yosemite-and-later/

Thread sanitised...

Stick to Chameleon.

Tried Display Menu app yet? It has an option to set mirroring on and off. https://osxlatitude.com/index.php?/topic/2366-finders-bar-display-tool/

Try without the generated SSDT, without the AICPUPM patch and with P States + C states generation.

You'll have to use the original MLPF tool (normally still available on the web through Google) or the newest MacPostFactor and use a similar process as described all those years ago for our old Dell Latitude D series. http://www.osxlatitude.com/mountain-lion-on-gma950x3100-nvs-110m-systems/ You may not use EDP of course, so re-use all those add-on kexts you currently use for Lion. I would advise you proceed as follows: 1) install ML on your X61 (without full graphics acceleration) 2) if applicable, update to ML 10.8.5 and install all further updates 3) apply the MLPF tool as described in the guides (ignore the fact your X61 may report 10.8.4 in the end, it's just cosmetic and can be adjusted) Bear in mind that this type of ML hacked installation remains a little bit buggy and iMessage may not even work.

"Replace" as in re-fit/re-plug.

Try and rebuild your cache: https://osxlatitude.com/index.php?/topic/9961-how-do-i-repair-permissions-and-rebuild-the-cache-yosemite-and-later/

Do you have CPU power management/SpeedStep properly working for your i5-560M? I ask because: your files include a CPU power management SSDT table generated by Pike R Alpha's tool your Clover config does not generate P-States/C-States your Clover config has AICPUPM patch enabled i.e. you use the CPU power management setup usually applicable to SandyBridge/IvyBridge, not to Arrandale.

That's what "move" means, in contrast to "copy"...

If you're not using the DSDT specifically tuned for USB ports under EC (and later), make sure to use the Clover built-in USB patches (section ACPI, renaming of EHCx devices to EH0x). You'll also need a USB injector kext. You may look at the contents (DSDT table + USBInjector kext) of the Extra folder posted in this E6220 El Capitan guide.

Different CPU, so you have to generate a new SSDT. DSDT should not have to change provided the other hardware specs remained identical. The advantages of moving the kexts from the Clover EFI folder to /L/E will be to cache them rather than inject them at boot time.

https://osxlatitude.com/index.php?/topic/9961-how-do-i-repair-permissions-and-rebuild-the-cache-yosemite-and-later/

Old tools such as Kext Wizard are most probably totally obsolete and best avoided these days. They date back to Leopard/Snow Leopard and Chameleon days. I'm pretty sure they're unsuitable for recent OS X/macOS versions. Long gone are the days when one deleted the Extensions.mkext file in /S/L to rebuild the cache... I would strongly advocate for manual (line command) kext manipulations, permissions repair and cache rebuilding as detailed in the FAQ section.

Afaik, this laptop if fitted with an I2C Synaptics Touchpad.

Guys, you need to be a little creative. Like setting the QMI mode (outside OS X/macOS if necessary) before attempting the macOS patch.

Yup, that's the expected and proper CPU behaviour.

Yes, we all know that too; it's a rather old machine that has been discussed under all possible angles many many years ago you know. 'not sure we need to revisit it all again....

You can't use HDD in RAID mode. Please configure your E6320 BIOS according to those listed here.

Did you disable hibernation at all? Check your sleep parameters with Terminal command pmset -g and, if necessary, adjust according to the related FAQ thread.

Use Clover Configurator -> ACPI tab...

I suggest you read post #1 of this thread and derive your own conclusions.