[Guide] Lenovo Ideapad S340 Laptop on Catalina

[Nunu00]

For some days I have installed macOS following this guide but I have noticed that the CPU temperature is slightly high and the fans always run very slowly. On Windows this problem does not presents. Is there any way to increase the fan speed without changing the setting from the bios?

 

[uflores]

I updated from Catalina 10.15.3 to 10.15.6, everything worked except HDMI (my laptop reboot when i connect the HDMI cable). Does anyone solved this?

 

[uflores]

updated without a hitch.

Does the HDMI in your ideapad S-340 work?

 

[mahikoxd]

I updated from Catalina 10.15.3 to 10.15.6, everything worked except HDMI (my laptop reboot when i connect the HDMI cable). Does anyone solved this?

I have not found a way to get HDMI

 

[uflores]

I have not found a way to get HDMI

I had to reinstall 10.15.3

 

[curtistn]

Does the HDMI in your ideapad S-340 work?

I have not found a way to get HDMI

I had to reinstall 10.15.3

Hi all. FYI mine works with HDMI.
I believe in 10.15.4 there were changes in the framebuffer handling. Check your framebuffer patching, make sure your device-id is set to 0x3E9B0000
Also, be sure WhateverGreen is the latest version.

More/complete framebuffer patching would be this:
<key>PciRoot(0x0)/Pci(0x2,0x0)</key>
<dict>
<key>AAPL,GfxYTile</key>
<data>AQAAAA==</data>
<key>AAPL,ig-platform-id</key>
<data>CQClPg==</data>
<key>AAPL,slot-name</key>
<string>Internal@0,2,0</string>
<key>device-id</key>
<data>mz4AAA==</data>
<key>device_type</key>
<string>VGA compatible controller</string>
<key>enable-hdmi-dividers-fix</key>
<data>AQAAAA==</data>
<key>enable-hdmi20</key>
<data>AQAAAA==</data>
<key>enable-lspcon-support</key>
<data>AQAAAA==</data>
<key>framebuffer-con0-enable</key>
<data>AQAAAA==</data>
<key>framebuffer-con0-pipe</key>
<data>EgAAAA==</data>
<key>framebuffer-con1-busid</key>
<data>BAAAAA==</data>
<key>framebuffer-con1-enable</key>
<data>AQAAAA==</data>
<key>framebuffer-con1-has-lspcon</key>
<data>AQAAAA==</data>
<key>framebuffer-con1-pipe</key>
<data>EgAAAA==</data>
<key>framebuffer-con1-type</key>
<data>AAgAAA==</data>
<key>framebuffer-con2-busid</key>
<data>AgAAAA==</data>
<key>framebuffer-con2-enable</key>
<data>AQAAAA==</data>
<key>framebuffer-con2-pipe</key>
<data>EgAAAA==</data>
<key>framebuffer-con2-type</key>
<data>AAgAAA==</data>
<key>framebuffer-patch-enable</key>
<data>AQAAAA==</data>
<key>framebuffer-unifiedmem</key>
<data>AAAAgA==</data>
<key>model</key>
<string>Intel UHD Graphics 630 (Mobile)</string>
</dict>

 

[mahikoxd]

Hi all. FYI mine works with HDMI.
I believe in 10.15.4 there were changes in the framebuffer handling. Check your framebuffer patching, make sure your device-id is set to 0x3E9B0000
Also, be sure WhateverGreen is the latest version.

More/complete framebuffer patching would be this:
<key>PciRoot(0x0)/Pci(0x2,0x0)</key>
<dict>
<key>AAPL,GfxYTile</key>
<data>AQAAAA==</data>
<key>AAPL,ig-platform-id</key>
<data>CQClPg==</data>
<key>AAPL,slot-name</key>
<string>Internal@0,2,0</string>
<key>device-id</key>
<data>mz4AAA==</data>
<key>device_type</key>
<string>VGA compatible controller</string>
<key>enable-hdmi-dividers-fix</key>
<data>AQAAAA==</data>
<key>enable-hdmi20</key>
<data>AQAAAA==</data>
<key>enable-lspcon-support</key>
<data>AQAAAA==</data>
<key>framebuffer-con0-enable</key>
<data>AQAAAA==</data>
<key>framebuffer-con0-pipe</key>
<data>EgAAAA==</data>
<key>framebuffer-con1-busid</key>
<data>BAAAAA==</data>
<key>framebuffer-con1-enable</key>
<data>AQAAAA==</data>
<key>framebuffer-con1-has-lspcon</key>
<data>AQAAAA==</data>
<key>framebuffer-con1-pipe</key>
<data>EgAAAA==</data>
<key>framebuffer-con1-type</key>
<data>AAgAAA==</data>
<key>framebuffer-con2-busid</key>
<data>AgAAAA==</data>
<key>framebuffer-con2-enable</key>
<data>AQAAAA==</data>
<key>framebuffer-con2-pipe</key>
<data>EgAAAA==</data>
<key>framebuffer-con2-type</key>
<data>AAgAAA==</data>
<key>framebuffer-patch-enable</key>
<data>AQAAAA==</data>
<key>framebuffer-unifiedmem</key>
<data>AAAAgA==</data>
<key>model</key>
<string>Intel UHD Graphics 630 (Mobile)</string>
</dict>

Thanks, it really works, but I had to change SMBIOS to MacBookPro14,1

 

[uflores]

Thanks, it really works, but I had to change SMBIOS to MacBookPro14,1

Could you share your EFI files?
I can't make the HDMI work.

 

[mahikoxd]

Could you share your EFI files?
I can't make the HDMI work.

I am using Opencore, the config must be opened through opencore configurator.

 

[uflores]

I am using Opencore, the config must be opened through opencore configurator.

I'm using Clover. I just replaced the whole section beginning with <key>PciRoot(0x0)/Pci(0x2,0x0)</key> to my config.plist and It worked!!!!! My HDMI is working again.


Thanks a lot !!!!