With the help of the Clover Laptop guide I have fixed a few things including: audio, ethernet, WLAN, bluetooth, and USB!
Issues Remaining:
- HDMI port does not work
- SD Card
- Brightness Slider and Fn keys for backlight do not work
- The laptop keeps going to sleep and then waking back up.
- I am not sure if I have disabled my discreet graphics. How to tell?
- My touchpad seems very touchy/glitchy. Anything to check into?
Not too worried about the SD Card, but I'd like to fix any power/battery/display issues if possible.
Thanks for any feedback
I am also using a L521X with Mojave on 10.14.4. I have not tried HDMI/SD Card, but I might be able to help you with the rest.
For backlight, I am using the Brightness app by bergdesign. No matter what I have tried, there was no way to make it work natively, but this app is great and the only small inconvenience is the fact that it does not have keyboard shortcuts. Avoid App Store app as they only put a dark filter on the screen as opposed to truly reducing the backlight level.
For the sleep issue, I have never experienced that so I will not be able to help much with it.
To disable the discrete graphics card I used an SSDT (or DSDT, can't remember which one) patch described by RehabMan. I will paste the instructions that I wrote (PLEASE DO NOT OVERWRITE YOUR FILES, back them up first; you might break something else that you have fixed):
Disable discrete graphics:
- restart and press f4 and fn + f4
- copy files from origin to a folder in desktop
- copy iasl to desktop
- run sudo cp iasl /usr/bin
- cd to folder with ssdts and run iasl -da -dl *.aml
- run grep -l Method.*_OFF *.dsl
- open result file and apply patches:
Code:
into method label _INI parent_label \_SB.PCI0.PEG0.PEGP insert
begin
//added to turn nvidia/radeon off\n
//External(\_SB.PCI0.PEG0.PEGP._OFF, MethodObj)\n
_OFF()\n
end;
- and:
into device label WMI1 remove_entry;
into_all all code_regex .*WMI1.* removeall_matched;
into_all method label MXMX remove_entry;
into_all method label _DSM remove_entry;
into_all method label HDSM remove_entry;
into_all method label HGAS remove_entry;
into_all method label HNOT remove_entry;
into_all method label HDOS remove_entry;
into all code_regex Name\s+\(_IRC,\s+([^\)].*)\) replace_matched
begin
Method(_IRC, 0, NotSerialized) { Return(%1) }
end;
# if using refs.txt (recommended), this patch not needed
into method label _BCM code_regex (\s*)(Arg0)$ replace_matched begin %1//%2 end;
- save resulting file in patched as ACPI Machine Language etc.
- restart, should now be silent (no fan spin unless temps get too high).
If you need further help with this please let me know.
For the trackpad, I have not found the best solution, but a great solution is RehabMan's VoodooPS2Controller, which allows you to have 3-finger swipe gestures (they trigger a keyboard combination though, so you need to set them up in keyboard shortcuts by doing the gesture while in the shortcut field).
I hope I was able to help you solve some of the issues. Please let me know if you have other issues that I might be able to help you with.
I would be glad if you could help me with an issue that I have been trying to solve myself for AGES:
BLUETOOTH.
I had almost lost hope for it, but I can see from your IOReg report that yours is working perfectly and you have probably the same wireless card as me. I have a BCM94352HBM. My WiFi is working, but nothing, absolutely nothing I have tried for bluetooth has worked. It is simply not detected at all, anywhere, although it works in Linux or Windows. If you could please let me know how you managed to make yours work, I would be grateful forever
.
I think we can make an almost perfect setup for our L521X, this machine is very powerful for its age and looks great!
EDIT:
I forgot to mention that I have managed to get audio working by using VoodooHDA but it is not really a great solution. What method did you use? Thanks in advance!
