HD520 Screen comes back turned off after waking from sleep.

[Drfrag]

Did you try a fresh install following all applicable guides?

Yes, I did that.
Fresh install actually fixed Bluetooth sometimes not been available after sleep on my system.

 

[RehabMan]

Yes, I did that.
Fresh install actually fixed Bluetooth sometimes not been available after sleep on my system.

No further ideas.

 

[Drfrag]

No further ideas.

Thank you very much for your effort.
I will keep reading ad learning.

 

[Drfrag]

No further ideas.

If I use this on DSDT, am I simulating a keypress?

Method (_WAK, 1, NotSerialized)  // _WAK: Wake
    {
        RWAK (Arg0)
        \_SB.PCI0.NWAK (Arg0)
        \_SB.PCI0.LPCB.SWAK (Arg0)
        WAK (Arg0)
        Sleep(3)
        Notify(\_SB.PCI0.LPCB.PS2K, 0x0???)
        Return (WAKP)
    }

If so, where can I find the code for left arrow keypress notifying?

 

[RehabMan]

If I use this on DSDT, am I simulating a keypress?

Method (_WAK, 1, NotSerialized)  // _WAK: Wake
    {
        RWAK (Arg0)
        \_SB.PCI0.NWAK (Arg0)
        \_SB.PCI0.LPCB.SWAK (Arg0)
        WAK (Arg0)
        Sleep(3)
        Notify(\_SB.PCI0.LPCB.PS2K, 0x0???)
        Return (WAKP)
    }

If so, where can I find the code for left arrow keypress notifying?

Strange thing to do ...

PS2 code for left arrow is 'e0 4b'. You can simulate it (make and break) with notify code 0x044b.

 

[Drfrag]

Strange thing to do ...

PS2 code for left arrow is 'e0 4b'. You can simulate it (make and break) with notify code 0x044b.

Can you please do me a favor?
Mark it as solved!
We did it!!!!!
Yey!!!

 

[RehabMan]

Can you please do me a favor?
Mark it as solved!
We did it!!!!!
Yey!!!

I'll keep the issue open, as your "fix" is not really a very good one...

 

[Drfrag]

I'll keep the issue open, as your "fix" is not really a very good one...

Ok. I understand. Do as you wish.
I know it is not a so right solution, but it is an effective one.
I will keep that for now until I find the right one.
Thanks.

 

[Drfrag]

I realize that the 3 seconds wait is not necessary, so for my screen turn on after wake I just need this:

Method (_WAK, 1, NotSerialized)  // _WAK: Wake
    {
        RWAK (Arg0)
        \_SB.PCI0.NWAK (Arg0)
        \_SB.PCI0.LPCB.SWAK (Arg0)
        WAK (Arg0)
        Notify(\_SB.PCI0.LPCB.PS2K, 0x044b)
        Return (WAKP)
    }