- Jun 24, 2014
- ASUS Maximus VII Hero
- i7 4790k
- HD 4600 + GTX 970
- Mobile Phone
...Alright, I tested on my 1440p display and it works fine. However, similar to mazakiss, I had to remove the HDMI cable and put it back in, or open and close the laptop a second time in order to restore the output to the laptop display.
Anyway, back to my first issue. It seems like the laptop is trying to output 4k@60hz to my 4k display, which is the default setting. This clearly doesn't work with the HDMI output. I'm guessing that I need to somehow disable these resolution options for the display in order to get it to work properly.....
After testing I can confirm your thoughts. It's def trying to output 4K 60Hz b/c its actually an option when I have it plugged in sometimes through HDMI. Damn Dell for putting a HDMI 1.4 out instead of 2.0. Makes no sense to cheap out when we purchased their flagships.
Due to your usage I have updated our Framebuffers to be "more" complete. I'll probably update the Clover version again soon and possibly for the last time till Catalina. Still made no difference b/c I think all MBP 14,1 can out put 4K 60hz through their TB/USB-C ports, they obviously don't have an HDMI 1.4 out.
So a solution I think would be to edit the EDID for the display. There's an app FixEDID and Darwin Dumper that may help you achieve this. As a last resort you may be able to spoof the Framebuffer to Skylake which may fix it but I personally wouldn't recommend it. I have a post probably ~10 pages back showing how to do so.
Please keep us updated and good luck!