MatiWaldi Posted July 7, 2020 Share Posted July 7, 2020 Hello folks. I have an Lattitude 7400 (successor of 7490) and I'm facing also same problem with making trackpad working under OC. Currently I'm using Clover, as everything working perfect, I was trying to switch to OC, and it was almost success. The only thing not working was trackpad. Tried many guides but with no luck. sadly, I'm not so advanced in programming, but tried my best. Maybe someone will find a solution for that. Fingers crossed. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted July 7, 2020 Moderators Share Posted July 7, 2020 Please post both Clover and OC folder. I'll try to help you. Link to comment Share on other sites More sharing options...
MatiWaldi Posted July 9, 2020 Author Share Posted July 9, 2020 Hi Jake Lo, below you'll find attached full Clover and OC folder. Thankd a lot for your help. CLOVER.zip OC.zip DSDT.aml.zip Link to comment Share on other sites More sharing options...
MatiWaldi Posted July 16, 2020 Author Share Posted July 16, 2020 @Jake Lo HI, did you have by any chance time to look at my files? Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted July 22, 2020 Moderators Share Posted July 22, 2020 @MatiWaldi Give this a try. Replace Config and add SSDT to ACPI folder 7400_OC_I2C.zip Link to comment Share on other sites More sharing options...
MatiWaldi Posted July 27, 2020 Author Share Posted July 27, 2020 @Jake Lo Good morning. with your config I'm no able to boot. OC gives some "critical error" straight after choosing SSD with Catalina. Below photos of errors. Those regard kexts. I tried several versions, including newest one. no luck unfortunately... :-( I tried to disable VooDooGPIO, then I get error with VooDooI2C. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted July 27, 2020 Moderators Share Posted July 27, 2020 You need to select Reset NVRam at OC Picker after any file changes. Link to comment Share on other sites More sharing options...
MatiWaldi Posted July 27, 2020 Author Share Posted July 27, 2020 Unfortunately that not helped. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted July 27, 2020 Moderators Share Posted July 27, 2020 Same error as above? What happens if you restore your Config file? Link to comment Share on other sites More sharing options...
MatiWaldi Posted July 27, 2020 Author Share Posted July 27, 2020 I was able to boot with my config, using your TDPX file disabling my existing patches , but trackpad working as a mouse. Below picture attached. Link to comment Share on other sites More sharing options...
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