Black spots appear in ps liquefaction of Mojave 10. 14 system when Apple mac is upgraded.

After upgrading to 10. 14. 1, the problem has been solved perfectly, but when I upgraded to 10. 14.3, the problem appeared again. It seems that only 15 pro will liquefy black pixels. Here are two solutions.

The first way

Ps preferences-performance? Turning off the hook using the graphics processor will not cause this problem in liquefaction, but liquefaction will be very difficult and face recognition seems useless.

Second ways

Because the first method was feasible, it turned out to be a problem with the graphics card, so I turned off the monitor directly and forced to use the integrated graphics card, so there was no need to remove the hook of the graphics processor. Face recognition is available, liquefaction will not get stuck. The only uncomfortable thing is that I can't plug in the monitor. Here's a way to turn off the monitor.

Method of mac forced switching between integrated graphics card and independent graphics card

1, open the terminal.

2. Enter the following command, and then press Enter.

Sudopset-a GPU Switch 0- Mandatory use of integrated graphics card

Sudopset- a GPU switch 1- forces the use of discrete graphics cards.

Sudopset- a GPU switch 2- automatically switches the graphics card

3. Enter the password to confirm the execution of the above command.

4. Restart takes effect.

The terminal is here.