HP 15-ax252nr BIOS Request (sp79340) OR EFI Help

[tical2k]

BIOS:  http://ftp.hp.com/pub/softpaq/sp79001-79500/sp79340.exe

Advanced menu unlock would be great.  

Alternately, I was able to get the variables I want to set, but I am unable to set them in my efi shell.  I tried setup_var and setup_var2 to no avail.  If anyone could help me, this would also be acceptable.  Perhaps I'm doing it wrong?  Here is the relevant section I extracted:

Code:

0x9B83A         Suppress If: {0A 82}
0x9B83C             Variable 0xADA equals 0x4 {12 86 DA 0A 04 00}
0x9B842                 Not {17 02}
0x9B844             End {29 02}
0x9B846             Setting: Primary Display, Variable: 0x104 {05 91 62 11 63 11 B3 01 02 00 04 01 10 10 00 03 00}
0x9B857                 Option: Auto, Value: 0x3 {09 07 CB 0F 30 00 03}
0x9B85E                 Option: IGFX, Value: 0x0 {09 07 64 11 00 00 00}
0x9B865                 Option: PEG, Value: 0x1 {09 07 65 11 00 00 01}
0x9B86C                 Option: PCI, Value: 0x2 {09 07 66 11 00 00 02}
0x9B873             End of Options {29 02}
0x9B875         End If {29 02}
0x9B877         Suppress If: {0A 82}
0x9B879             Variable 0xAD9 equals 0x20 {12 06 D9 0A 20 00}
0x9B87F             Setting: Internal Graphics, Variable: 0x10A {05 91 76 11 77 11 B4 01 02 00 0A 01 10 10 00 02 00}
0x9B890                 Default: Other {5B 85 00 00 08}
0x9B895                     Value {5A 82}
0x9B897                         Variable 0xAD9 equals value in list (0x14, 0x1A, 0x1B, 0x46, 0x45) {14 90 D9 0A 05 00 14 00 1A 00 1B 00 46 00 45 00}
0x9B8A7                             Variable 0xAD9 equals value in list (0x73, 0x74) {14 0A D9 0A 02 00 73 00 74 00}
0x9B8B1                             64 Bit Unsigned Int: 0x2 {45 0A 02 00 00 00 00 00 00 00}
0x9B8BB                             64 Bit Unsigned Int: 0x0 {45 0A 00 00 00 00 00 00 00 00}
0x9B8C5                             Conditional {50 02}
0x9B8C7                             64 Bit Unsigned Int: 0x1 {45 0A 01 00 00 00 00 00 00 00}
0x9B8D1                             Conditional {50 02}
0x9B8D3                         End {29 02}
0x9B8D5                     End {29 02}
0x9B8D7                 End {29 02}
0x9B8D9                 Option: Auto, Value: 0x2 {09 07 CB 0F 30 00 02}
0x9B8E0                 Option: Disabled, Value: 0x0 {09 07 CD 0F 00 00 00}
0x9B8E7                 Option: Enabled, Value: 0x1 {09 07 CC 0F 00 00 01}
0x9B8EE             End of Options {29 02}
0x9B8F0         End If {29 02}

I was trying:

Code:

setup_var 0x10A 0x0
setup_var 0x104 0x3

Didn't seem to work.  Maybe it's locked on setting variables?  How can I check that?  Also maybe my efi shell isn't up to date?  Any help would be appreciated.

Thanks!

[tical2k]

Anyone have ANY info? I fear this must mean it's variable locked.

[mclarke2355]

You might be able to change some settings this way (needs to be adapted): http://www.geektech.co.nz/how-to-unlock-...enovo-y700

[tical2k]

You might be able to change some settings this way (needs to be adapted): http://www.geektech.co.nz/how-to-unlock-...enovo-y700

Holy crap!  This is very promising.  Thank you for the lead!

[tical2k]

Thanks for the suggestion, but it appears that won't work either:

Code:

"Setup" {A04A27F4-DF00-4D42-B552-39511302113D} - write variable FAIL!!

Guess I'll have to bust out the rom programmer.

[bobafetthotmail]

Did you use the BOOTx64.efi as said in the thread about EFI?

That's not the efi shell, it's a modified GRUB linux bootloader with a custom command added, the EFI shell does not have that command.
The creator's page is here, it explains better how to use it. http://feature-enable.blogspot.it/ (his links are dead though)

Also, what are you trying to do by editing that option? All modern laptops have screen and video ports connected to Intel GPU, so it has to be the primary. Dedicated GPU is headless, it has no output ports. If you switch to that you softbrick the laptop (i.e. you get a black screen).

EDIT: I also cannot change variables with that method. I get "error cannot set variable using EFI (error 0x00000000000000001a)"

[tical2k]

Did you use the BOOTx64.efi as said in the thread about EFI?

That's not the efi shell, it's a modified GRUB linux bootloader with a custom command added, the EFI shell does not have that command.
The creator's page is here, it explains better how to use it. http://feature-enable.blogspot.it/ (his links are dead though)

Also, what are you trying to do by editing that option? All modern laptops have screen and video ports connected to Intel GPU, so it has to be the primary. Dedicated GPU is headless, it has no output ports. If you switch to that you softbrick the laptop (i.e. you get a black screen).

EDIT: I also cannot change variables with that method. I get "error cannot set variable using EFI (error 0x00000000000000001a)"

Yeah thats the error I get as well.  I also tried the using the H20UVE utility.  It appears the variable to enable that is set to 0x0 (Setting: H2OUVE Support, Variable: 0x1A7), but I cannot set even that variable.  

So the end result I want is to use the 1050 TI in osx.  I have everything else functioning, but not this gfx card, even though the kexts (drivers) load.  If I have to, I'll just keep using my intel gfx.  

I guess in linux and windows, optimus handles that accordingly.   I would really like to see a document or spec indicating all dedicated cards no longer have output ports.

[HighlanderC]

Did you use the BOOTx64.efi as said in the thread about EFI?

That's not the efi shell, it's a modified GRUB linux bootloader with a custom command added, the EFI shell does not have that command.
The creator's page is here, it explains better how to use it. http://feature-enable.blogspot.it/ (his links are dead though)

Also, what are you trying to do by editing that option? All modern laptops have screen and video ports connected to Intel GPU, so it has to be the primary. Dedicated GPU is headless, it has no output ports. If you switch to that you softbrick the laptop (i.e. you get a black screen).

EDIT: I also cannot change variables with that method. I get "error cannot set variable using EFI (error 0x00000000000000001a)"

Yeah thats the error I get as well.  I also tried the using the H20UVE utility.  It appears the variable to enable that is set to 0x0 (Setting: H2OUVE Support, Variable: 0x1A7), but I cannot set even that variable.  

So the end result I want is to use the 1050 TI in osx.  I have everything else functioning, but not this gfx card, even though the kexts (drivers) load.  If I have to, I'll just keep using my intel gfx.  

I guess in linux and windows, optimus handles that accordingly.   I would really like to see a document or spec indicating all dedicated cards no longer have output ports.

Would you mind sharing your instructions/OS Binary for getting OSX installed on this machine?

[tical2k]

Sorry, I periodically check this forum.  I could attach my clover config (without serial) if you're still looking.  That should get you up and going I think.  I do run OSX with a nvme drive, but first things first.  Send me a PM if you are still after the config.