HT201237: Final Cut Pro X: Version 10.1.3 release notes
Learn about Final Cut Pro X: Version 10.1.3 release notes
Q: lines on screen when exporting video
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Jun 30, 2016 9:19 AMby David Bogie Chq-1,A hardware or graphics card problem would show up in other applications as well.
If a simple restart of your Mac doesn't fix this, if your'e sure it's not your GPU, and if you've deleted your FCPX prefs once or twice, you can delete the application and easily/quickly download it again form the app store if you have your original login credentials for your app store account under which you purchased FCPX originally. Do not delete the FCPX app unless you know you can restore it from the app store.
However, your screenshot sure looks like a graphics card issue to me.
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Jun 30, 2016 11:51 AMby David Bogie Chq-1,Tom Wolsky wrote:
Not necessarily. FCP probably puts more demands on the graphics card by far than other other application or even the OS, but agree with everything else.
Stressing a GPU depends on the application's ability to use the thing. A patient web search will turn up several GPU stress applications that might or might not indicate anything except they work your chips MUCH harder than FCPX can.
A screen shot in this article looks surprisingly familiar to the OP's issues although it's related to a Radeo chip failure from a few years ago:
https://people.cam.cornell.edu/~zc227/extras/early2011mbp_graphics.html
Symptoms
You will be working on your computer using a more GPU-intensive application (Google Maps, Safari, Photoshop, the list goes on...) or have an external display plugged in. Your computer may suddenly "blank" into horizontal lines:
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by Tom Wolsky,Jun 30, 2016 11:55 AM
Tom Wolsky
Jun 30, 2016 11:55 AM
in response to David Bogie Chq-1
Level 10
(118,152 points)
Apple TVI remember that problem. Had a number of machines in trainings that did that back in the day. Bad graphics cards. Think FCP far surpasses those in GPU usage when process output files. All the rendering heavily lifting is on the GPU now.
