After upgrading to 10.12.4, some graphics problems

[xzpjerry]

My device: HP 8470P with AMD ONLY, BIOS setting:
- Disable FastBoot
- Native UEFI (Without CSM)
- Disable LAN/WLAN Switching
- Disable Direct I/O Virtualization
- Disable Serial Port
- HDD in AHCI mode
- Disable Wake on USB/LAN/WLAN
- Disable Intel Deep Sleep

Clover: Latest 4035

What happens:
1. Color flashing -> Just found a workaround, using switchResX and select Millions of colors can solve the problem
2. DisplayPort is not working; when plugging in, built-in display would frozen, and the attached display would show nothing but darkness.

These problems appeared only after updating to the 10.12.4, any ideas?

 

[xzpjerry]

Also, I have a small trackpad issue, it cannot perform drag gesture, which used to be ok; I used to drag windows, selecting a snippet of text by dragging.
I'm using the latest VoodooPS2 now, by the way.

 

[RehabMan]

My device: HP 8470P with AMD ONLY, BIOS setting:
- Disable FastBoot
- Native UEFI (Without CSM)
- Disable LAN/WLAN Switching
- Disable Direct I/O Virtualization
- Disable Serial Port
- HDD in AHCI mode
- Disable Wake on USB/LAN/WLAN
- Disable Intel Deep Sleep

Clover: Latest 4035

What happens:
1. Color flashing -> Just found a workaround, using switchResX and select Millions of colors can solve the problem
2. DisplayPort is not working; when plugging in, built-in display would frozen, and the attached display would show nothing but darkness.

These problems appeared only after updating to the 10.12.4, any ideas?

Sounds like something changed in the AMD/ATI drivers...

 

[RehabMan]

Also, I have a small trackpad issue, it cannot perform drag gesture, which used to be ok; I used to drag windows, selecting a snippet of text by dragging.
I'm using the latest VoodooPS2 now, by the way.

Check your settings in SysPrefs->Accessibility.

 

[xzpjerry]

Sounds like something changed in the AMD/ATI drivers...

Thanks for replying! Yeah, maybe it's for implementing the night-shift function. But it's not a big deal in the short term. Have you encountered similar issues?

Check your settings in SysPrefs->Accessibility.

Got it! I remembered this option used to be at the trackpad pane. Anyway, many thanks!

 

[RehabMan]

Have you encountered similar issues?

I don't have anything with AMD graphics hardware.