GTX 660 glitch issue with MacOS High Sierra 10.13

[459below]

I'd like to share a little workaround to fix the glitches for a short period. Since changing the refresh rate will temporarily fix the glitching, one can change the refresh rate and set it back again. I'm using cscreen to automate this tedious process. I packaged it into a rudimentary App and now it sits in my dock bar, so that I can fix the glitches when they appear:

cat /Applications/cscreen-fix.app/Contents/MacOS/cscreen-fix
#!/bin/bash
/Applications/cscreen-fix.app/Contents/MacOS/cscreen -x 1920 -y 1080 -r 50
/Applications/cscreen-fix.app/Contents/MacOS/cscreen -x 1920 -y 1080 -r 60

 

[xheathen]

Did you test with a 660? You signature has 750 Ti

I have a 650ti that am using now, along with a 660 I was using for testing.

Unfortunately, after 4 days, they showed up. Basically, everything was working great - apps I generally use, browsing, youtube, etc., but I opened up an app I haven't used in a while and that brought the glitching back. It was the built in Calendar App. Oddly, after that triggered they showed up more often once they appeared that first time, so I'm at a loss.

What I ended up doing after just being frustrated there apparently was no fix still was just buying a GT 710 2gb card which was on sale on Amazon for $32. Uses the mac native driver and was just plug and play. I think I've thrown in the towel on getting the 650 or the 660 working.

 

[remington]

I think I was able to fix this glitch issue as I have GTX 660 card in my another computer. It's been running for 4 days without any glitches. I originally used this patch to prevent Preview from beachballing my system.

I would assume you still have Lilu.kext and WhateverGreen.kext installed.

Be sure to keep your cable connected to your dedicated video (nVidia) the whole time.

Try this:

Go into Gigabyte BIOS and set this (other brands should be similar).
- Select iGFX as primary video card
- Enable Internal Graphics
- Set DVMT Pre-Allocation -> default 64M
- Set Total GFX Memory -> default 256M
- Save and Reboot

Patch the config.plist using Clover configurator.
- Inject Intel -> enabled
- ig-platform-id (in my case for Intel HD 4600) was: 0x0d220003

Reboot the computer.

You won't see the boot screen as it will be using Intel Graphics so be sure to set Clover to autoboot Mac partition before making the changes. After the boot process is done then you will see the Mac login screen.

I'm not sure why this works but it seems to trick Mac OS into thinking that it's using Intel internal graphics.

 

[saudor]

I think I was able to fix this glitch issue as I have GTX 660 card in my another computer. It's been running for 4 days without any glitches. I originally used this patch to prevent Preview from beachballing my system.

I would assume you still have Lilu.kext and WhateverGreen.kext installed.

Be sure to keep your cable connected to your dedicated video (nVidia) the whole time.

Try this:

Go into Gigabyte BIOS and set this (other brands should be similar).
- Select iGFX as primary video card
- Enable Internal Graphics
- Set DVMT Pre-Allocation -> default 64M
- Set Total GFX Memory -> default 256M
- Save and Reboot

Patch the config.plist using Clover configurator.
- Inject Intel -> enabled
- ig-platform-id (in my case for Intel HD 4600) was: 0x0d220003

Reboot the computer.

You won't see the boot screen as it will be using Intel Graphics so be sure to set Clover to autoboot Mac partition before making the changes. After the boot process is done then you will see the Mac login screen.

I'm not sure why this works but it seems to trick Mac OS into thinking that it's using Intel internal graphics.

Interesting. Have you tried opening Photos, playing a movie in quicktime or VLC? Those tend to immediately bring the glitches

 

[remington]

Interesting. Have you tried opening Photos, playing a movie in quicktime or VLC? Those tend to immediately bring the glitches

Unfortunately after 6 days, glitch started when I launched Viber or JEdit. The solution did not work so I'm going to buy Radeon video card. I'm tired of nVidia delaying web driver releases after new macOS updates and Apple won't fix old native nVidia drivers. Apple would have fixed the glitch issue since it was discovered in High Sierra but they haven't.

 

[macs_forever]

Radeon RX560 is a good cheap card that is pretty capable. ALL my GTX 1050s and 1060s now sit on a shelf.

 

[saudor]

Unfortunately after 6 days, glitch started when I launched Viber or JEdit. The solution did not work so I'm going to buy Radeon video card. I'm tired of nVidia delaying web driver releases after new macOS updates and Apple won't fix old native nVidia drivers. Apple would have fixed the glitch issue since it was discovered in High Sierra but they haven't.

Bummer! Yeah I bit the bullet and got the sapphire nitro+ rx 580. Runs like butter and it's amazing

 

[remington]

Bummer! Yeah I bit the bullet and got the sapphire nitro+ rx 580. Runs like butter and it's amazing

I'm picking up Sapphire RX 570 tomorrow.

 

[LeBaldi]

unfortunately here in Brazil the AMD is now very expensive (all cards actually)... and I have to stay with GTX660 for more months (or years I dont know)

 

[remington]

unfortunately here in Brazil the AMD is now very expensive (all cards actually)... and I have to stay with GTX660 for more months (or years I dont know)

If you did the patch like I did then you will notice much less glitches. The glitch appeared on 6th day after several sleep/wake cycles but if you reboot or shutdown often then glitch won't appear. I did notice the difference before and after the patch. The sleep/wake cycles without rebooting the computer for awhile can have undesirable effects.

I rebooted the computer and JEdit and Viber worked okay. No glitches.