HDMI fix does not work

[lihjacky]

Hello, In the very last steps, the HDMI audio fix is not working. Once I plug the HDMI cable, the laptop restart at once. I have tried your config.plist and also tried the config_patches.plist. Moreover, I also follow the guide in https://www.tonymacx86.com/threads/guide-intel-igpu-hdmi-dp-audio-all-sandy-bridge-kaby-lake-and-likely-later.189495/. And it still reboots every time.

Do you have any ideas to fix the HDMI audio and reboots in X1c6?

ps. I found the HDAU device in X1c 6gen is not B0D3 but B0D4

[tylernguyen]

You must override EDID to completely fix the HDMI issue. I'm currently testing out a few different DisplayOverride configurations and will update the repo with the appropriate files as soon as possible. Please bear with me.

[jeremylan]

Hi

I had the same problem and the best solution I could find was to install the HiDpi script:

https://github.com/xzhih/one-key-hidpi

and then patch the resulting EDID with the usual method using Darwin Dumper and FixEDID.
All details here:

https://www.tonymacx86.com/threads/hidpi-resolution.268187/#post-1885447

You also need the Skylake spoof patch described here, section 'Problems with Kaby Lake Graphics':

https://www.tonymacx86.com/threads/readme-common-problems-and-workarounds-on-10-14-mojave.255823/

I get a really nice HiDpi resolution and full external monitor support via HDMI.
The only issue is on sleep, where the resolution gets lost on wake up, I still don't know how to fix that one.

Hope it helps.

If you want to read all the stuff I tried. it's all in this thread:

https://www.tonymacx86.com/threads/lenovo-x1-carbon-g6-hdmi-out-rebooting.267429/

[tylernguyen]

@jeremylan Thank you for your help. Do you mind providing me with your DisplayOverride folder?

[jeremylan]

Hi @tylernguyen
No probs, thank you very much for publishing your guide, it was useful to me.
I attached my DisplayOverride folder, hope it helps.
Thanks

DisplayVendorID-30e4.zip

[swsjack]

Hi,
Any update for exact method or step to follow to make HDMI output to work. My X1 carbon still reboot every time I connect HDMI cable. Please help..

[tylernguyen]

Hi,
Any update for exact method or step to follow to make HDMI output to work. My X1 carbon still reboot every time I connect HDMI cable. Please help..

@swsjack @lihjacky Please try again using my OpenCore configurations. The issue has been fixed on my machine.