[HELP] My Switchable Graphics option in BIOS keeps resetting after reboot!

[marcTempAccount]

Maybe is BIOS issue. Do you have the latest?
Also, you could try without the RTC fix patch.

BIOS is latest version. A18. Also happened when I was on A04.

Well it still occured when I had no ACPI patches at all, so also no RTC fix.

Is there no other way to force enable Switchable Graphics on boot or at least force iGPU? Like - any other way to use iGPU even when Switchable Graphics is off?

I don't really want to enable Switchable Graphics every boot.. This can't be a permanent thing without any solutions..

 

[RehabMan]

BIOS is latest version. A18. Also happened when I was on A04.

Well it still occured when I had no ACPI patches at all, so also no RTC fix.

Is there no other way to force enable Switchable Graphics on boot or at least force iGPU? Like - any other way to use iGPU even when Switchable Graphics is off?

I don't really want to enable Switchable Graphics every boot.. This can't be a permanent thing without any solutions..

No further ideas for that issue. Perhaps you should search for existing threads for same/similar laptop and consult with others that also have the same laptop...

 

[marcTempAccount]

No further ideas for that issue. Perhaps you should search for existing threads for same/similar laptop and consult with others that also have the same laptop...

When you have any info on this, please post here or send me a message, the bug makes my hackintosh pretty unusable :/

Thank you very much for the guides & help!

 

[marcTempAccount]

No further ideas for that issue. Perhaps you should search for existing threads for same/similar laptop and consult with others that also have the same laptop...

This (attached image) is the System Log > Power Events in my BIOS, do they tell you anything? It says Battery removed...??

(I've entered BIOS, cleared the Logs, exited BIOS and booted into MacOS, then I clicked Shutdown in MacOS, booted again (once it fails to boot like I described in my original post), entered BIOS and this is what it says now.)

 

[RehabMan]

This (attached image) is the System Log > Power Events in my BIOS, do they tell you anything? It says Battery removed...??

(I've entered BIOS, cleared the Logs, exited BIOS and booted into MacOS, then I clicked Shutdown in MacOS, booted again (once it fails to boot like I described in my original post), entered BIOS and this is what it says now.)

No other ideas since post #52.

 

[Precision M6800]

This (attached image) is the System Log > Power Events in my BIOS, do they tell you anything? It says Battery removed...??

(I've entered BIOS, cleared the Logs, exited BIOS and booted into MacOS, then I clicked Shutdown in MacOS, booted again (once it fails to boot like I described in my original post), entered BIOS and this is what it says now.)

Did you solve it ?
If not I have a solution for your issue ;
Share your EFI and I will upload it with fix

Here's the Fix for your issue

https://www.tonymacx86.com/threads/...cision-m6800-workstation.262199/#post-1862990