No sadly it didnt work 
, but I just thought of something, when installing EndeavourOS, I mounted my EFI in /boot/efi/ and not in /boot/ .
So if I used the command sudo grub-mkconfig -o /boot/grub/grub.cfg , wouldnt that place it in the wrong place for me? I mean I’m obviously am new to this, so idk lol
Did you create manual partitions? Normally on UEFI you create a UEFI partition 300-550 MB and it is Fat32 and you flag it /boot/efi and also flag it /boot. Then you create the other partitions. Normally you don’t have a separate /boot partition unless for a purpose.
Edit: I’ll look at the hardware log
Yes I manually partioned as I have already a Windows 11 OS on here,
I took the already existing FAT32 EFI partition that windows uses, and told Linux to mount as /boot/efi/ there with the boot flag /boot ticked
I just looked at dmesg and it indeed has been passing the grub parameters to the Linux kernel
Yes, that is the way to do it and normally & i think you would not format the existing fat32 efi partition on windows in the manual partitioning set up. So you would just keep what is existing and flag it properly.
Edit: I myself have Windows on one disk and Endeavour on another so i just create another efi partition on the disk Endeavour is installed and it finds Windows with os-prober and adds it to grub. All is good.
Anyway if none of these worked you can just remove the kernel parameters and update grub again and your good. Just have to keep looking for more info.
Okay I’ll remove them and will try to keep looking, thanks for helping! again I appreciate it greatly!
Edit You may want to look at xrandr and get the outputs of both monitors and set each up using xrandr. That may also work as you set all the output parameters for each including type of cable output and resolution, position & hz etc.
man xrandr
Thank you, I’ll have a read of it and see if I can understand it!
I’m really sorry but im having a very bad time understanding all of this, and I REALLY hate to ask this but could you please help me out with setting xrandr up with my monitor?
I’ve just discovered autorandr, where it automatically applies a script to apply resolution etc to a monitor when a hdmi cable is removed or plugged in, can I take that script and apply it so it runs when the computer wakes?
Have a look here:
If possible i would try a display Port cable.
Edit: Not sure if this laptop has display port. But i have read on other sites issues getting display to work on Hdmi @ 144Hz. If it only has Hdmi then would have to use an Hdmi to display port adapter.
Thanks, I read it all through and learnt how to do the syntax properly, and tried all of the OSI strings, but unfortunately none worked. even tried acpi_osi=‘Linux’ and no luck.
No my laptop doesn’t have a Display port, but I do have a Display cable so I will order an HDMI to Display port adapter and see if it works, although wouldn’t that be just the same as HDMI since its still going through my laptops HDMI port?
I just read on some other sites about issues on Hdmi not being able to do 144Hz. You said it does but won’t wake from sleep if set at that. I think it’s worth a try.
Is your HDMI a mini Hdmi out from the laptop?
No it’s a regular size HDMI output
I also have just found out that It will wake from sleep if set to 1920x1080 @ 144Hz, so this is beginning to really look like it cannot handle the bandwidth. which is weird because windows can handle it just fine.
I’m looking at some adapters now, but I still just have the worry that an adapter wont work since its still gotta go through the same HDMI port, so the bandwidth will just be lost, right?
I don’t know that for sure.
Edit: The adapter say’s 4KX2K resolution @30 HZ This is a passive adapter.
I just looked up some information and as I thought, the bandwidth will degrade as soon as it hits the HDMI adapter or HDMI port, so it looks as if this will not work
I found this: https://community.acer.com/en/discussion/541521/helios-confirmed-240hz-hdmi/p1
Doesn’t look like your model and Monitor is also not on here either.