Thank you Sniki so much for the amazing guide! :clap: I am planning on buying either T440s or T440p. Can anyone confirm if either of them can output 4K resolution via miniDP to an external monitor in Catalina? Thanks.
I've experienced similar behavior in Windows, seems like video signal is routed through nvidia. Also when you run a userbenchmark test with USB-C, it benchmarks the Nvidia gpu. Unfortunately I don't have experience with framebuffer patching or experimenting with ig-platform-id values, but I...
As I mentioned earlier I bought a USB-C to DisplayPort adapter which doesn't work with the current EFI from xiaoM4095. But the more of us the better, maybe someone will figure it out. My main concern would be if USB-C was routed through the Nvidia gpu, in which case we wouldn't be able to get it...
With regards to getting the external monitor working, is the USB-C actually wired to the CPU (UHD 630) or to Nvidia GPU? I noticed those who managed to get the external monitor working were using a USB adapter, not USB-C. If in theory it should work, then maybe I'm missing a USB-C/thunderbolt...
USB-C 3.1 to DP cable arrived (brand name I-Tec), but I get no signal to my 4k monitor, not even 1080p. Tried enabling thunderbolt in BIOS which didn't help. I thought maybe DVMT prealloc is too low (heard that 128MB is needed for 4k), but since I have no signal maybe it's a different problem...
Just want to say thank you @xiaoM4095 for sharing your EFI and scripts, everything works almost 100% on my Y530. The touchpad right-click hardware button doesn't work but I actually don't need it as I set left-click as 1-finger tap, right-click as 2-finger tap and enabled dragging in...
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