Q: Mac Pro 2013 + Swit S-1221F monitor

Hello,

I have an issue when I'm trying to connect my Swit S-1221F monitor on my brand new Mac Pro 2013.

Image is blinking all the time (less than 1s with image then 4-5s black). Same on HDMI and Thunderbolt ports, with various cables... HDMI output working fine with another monitor. Swit monitor working fine on a MacBook Pro, and iMac with Belkin TB > HDMI cable.

Any idea?

Cheers,

Jerome

Posted on Jan 9, 2015 9:25 AM

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Q: Mac Pro 2013 + Swit S-1221F monitor

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by Jason L,

Jason L Jan 11, 2015 9:03 AM in response to jroussel
Community Specialists

Jan 11, 2015 9:03 AM in response to jroussel

Hey jroussel,
Welcome to Apple Support Communities.

It sounds like there is a flickering issue with the external display when it's connected to your Mac Pro. The article linked below provides a lot of great information and troubleshooting tips that will resolve most issues like this one.
Apple computers: Troubleshooting issues with video on internal or external displays - Apple Support

So long,
-Jason
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by jroussel,

jroussel Jan 11, 2015 9:15 AM in response to Jason L
Level 1 (10 points)

Jan 11, 2015 9:15 AM in response to Jason L

Thanks Jason, I tried everything on this page but it does't change anything...
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by DenBrass,

DenBrass Sep 25, 2015 11:50 AM in response to jroussel
Level 1 (0 points)

Sep 25, 2015 11:50 AM in response to jroussel

Hi, jroussel, i have a same problem, my swit 1221 flash 1 sec and disappears for 5 sec, i search in web for solution but nothing.

Do you have find something ?

Thanks
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by Grant Bennet-Alder,

Grant Bennet-Alder Sep 25, 2015 12:52 PM in response to jroussel
Level 9 (61,385 points)

Desktops

Sep 25, 2015 12:52 PM in response to jroussel

That problem could be caused by the display struggling to sync with the signal provided by the computer. There are tons of custom settings in the display, and the manufacturer may have some guidance about what should be adjusted for best picture stability.

I found a manual here, but no specific recommendations in it:

http://ep.yimg.com/ty/cdn/yhst-49736532031788/S-1221F-User-Manual.pdf

.
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Q: Mac Pro 2013 + Swit S-1221F monitor

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by Jason L,

by jroussel,

by DenBrass,

by Grant Bennet-Alder,

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