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External display stops working since 10.10.3

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Joined
Oct 21, 2012
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3,392
Motherboard
HP Elitebook 8470p
CPU
i5 3320M
Graphics
HD 4000, 1600x900
Mobile Phone
  1. iOS
I just checked my friend's HD4000 1366x768 laptop and my HP HD4000 1600x900 laptop, both (his HDMI port and my DP port) stop working after updating 10.10.3. I checked the patch for my laptop and they still match the new kext, but it does not work anymore.

Are there anyone having same problems with me?
 
Still works with no problems for me, I installed using your Clover guide (first time I follow an install guide here and it was painless).
 
Still works with no problems for me, I installed using your Clover guide (first time I follow an install guide here and it was painless).

Thanks, I should try other display then. I used a DP-to-HDMI adapter, how about you?
 
Thanks, I should try other display then. I used a DP-to-HDMI adapter, how about you?
Same, DP-to-HDMI adapter-to-HDMI switch-to-HDMI display.

Are you using a different patch or method?
 
Same, DP-to-HDMI adapter-to-HDMI switch-to-HDMI display.

Are you using a different patch or method?

No, I'm using the same one as in the guide.
 
No, I'm using the same one as in the guide.

Since we are on the topic, I am new to clover (and the HP Probook Installer Clover Edition), how do you inject the Capri patch, where can I access it if I would want to modify something?
 
Since we are on the topic, I am new to clover (and the HP Probook Installer Clover Edition), how do you inject the Capri patch, where can I access it if I would want to modify something?

Use Clover Configurator to mount EFI partition, then import the /EFI/Clover/config.plist, go to kernel and kext patches, there will be a patch for HDMI-DP port.
 
Use Clover Configurator to mount EFI partition, then import the /EFI/Clover/config.plist, go to kernel and kext patches, there will be a patch for HDMI-DP port.
Thx, was missing the import part :)

Keep us updated, the patch should still work normally, the key phrases didn't change.
 
No, I'm using the same one as in the guide.

Make sure the patches are being applied. Check ioreg for signs that HDMI-audio is enabled (connector-type 00 08 00 00). Keep in mind Clover can patch a kext only when it is in kernel cache or when booting without cache. Perhaps the graphics kext is not in the cache (fix: rebuild cache... make sure it is error free).
 
I just checked my friend's HD4000 1366x768 laptop and my HP HD4000 1600x900 laptop, both (his HDMI port and my DP port) stop working after updating 10.10.3. I checked the patch for my laptop and they still match the new kext, but it does not work anymore.

Are there anyone having same problems with me?

I have exactly the same issue. I have rebuilt the cache for several times, no luck.
8470P, HD4000, 1600x900, DP to HDMI coverter.
 
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