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The Preview does not lower the image quality, but will fit it in the given parameters. If you use Preview to open a original image: Example: 5.5 MB file size with Dimensions of 3648 × 2736 pixels Now open the Preview Tools - Adjust Size to see the current settings. The default resolution is set to 72 which is standard for web applications. In that ...


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According to MacTracker.app: Display Connection 1 - HDMI port or Thunderbolt digital video output Display Support Supports an HDMI-compatible device while using one Thunderbolt display or support for two Thunderbolt displays Display Modes Dual display extended, video mirroring, and AirPlay Mirroring External Resolution Up to 2560 by 1600 ...


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Hi I believe it's not a dying GPU because we have same issue in all our MAC's. It started after Yosemite upgrade. https://www.dropbox.com/s/n04b4tmbbggkftd/wierdvideoproblem.mp4?dl=0 It may be Little Snitch. I disabled network traffic activity monitor, because glitch update pattern is like a data transfer pattern. I'll post updates.


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A couple of things to try. Remove the Finder preferences file. The system will automatically regenerate it. In Finder, press Shift-Command-G and enter ~/Library/Preferences. Then find com.apple.finder.plist and move it to the Trash. Right-click on the Finder icon in the dock and select Relaunch. If this doesn't work, ensure that JPG files are associated ...


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When a file is not associated with a specific application, it will not show as Icon. To change that right click on one of those files and select the Get Info, in that window select the Application to use to open, and then select apply to all (Change All).


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What you describe in the post and the comments is definitely a dying GPU. I am deeply sorry for your loss. #AlsoLostAGPUOnMyMac



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