Yosemite - login screen on low res

Hello all,
i'm facing strange issue. After update to Yosemite on my MacBook Pro Retina ( Mid 2012 ) login screen appears in low-res.
I've tried changing resolution and several restarts but no luck so far. Anyone had same issue?
Thanks for any advice.

Also experiencing this on my Late-2013 15" rMBP...it wasn't present during the early OSX 10.10 betas but has been persistent over the last few and now with the full release.
I have done a full, clean install as well to see if something was fubared in the settings but nope. What a really silly issue to have. 10.10 wasn't ready for primetime, these aren't the type of bugs that people should be experiencing.
What I can say though is that for me, this issue is limited to when i'm using an external display. If I use my laptop without anything connected externally it doesn't happen.

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Hi,
the VDI login screen/desktop selector uses the configured default locale from the Sun Ray kiosk session. You can change the default by logging into the Sun Ray admin UI (http://yourserver:1660) and selecting the Advanced - Kiosk Mode tab. Click on Edit and enter the desired locale (e.g. de_utf8) in the Locale field. Click OK to store your changes.
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Also experiencing this on my Late-2013 15" rMBP...it wasn't present during the early OSX 10.10 betas but has been persistent over the last few and now with the full release.
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Make a "Genius" appointment at an Apple Store, or go to another authorized service provider. You may have to leave the machine there for several days.
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Etienne TSS wrote:
Thanks for the advise. I was about to follow your instructions. Then came along another advise which seems to be less risky.
glad you fixed it but FYI resetting PRAM is NOT a risky operation. it's quite on par with just turning the computer off/on. it's an absolutely standard troubleshooting procedure which carries zero risk.
That solved the problem
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Dominic23,
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Reinstall third-party software from original media or fresh downloads—not from a backup, which may be contaminated.
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I'm new to apple so bear with me....I work at a college and facutly members are have problems sharing there screen to the students.....
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I'm new to apple so bear with me....I work at a college and facutly members are have problems sharing there screen to the students.....
A professor will try to share a picture and the clients see get a "posterized" or "grainy" low resolution picture on there computer....we are running tiger with all the updates including ARD 3.2.
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Hi..
I am so beaten down by these constant problems with my MBP. Looks like I'm going in for a third repair, again, with multiple problems. And again, not all problems will warrant their even looking at them all.
For instance, they didn't give my crooked fitting battery as much as a glance last repair, because the screen was the main issue.
Again, the screen is an issue this time. It looks like it's showing in low resolution. I know the problem is mechanical, because moving the lid will cause the screen to flicker, display lines, and eventually solve the problem temporarily once the exact right angle is found.
But why does this keep happening? It must be a crimped cable or a bad card, right? But in additon, the computer has been running hotter lateley. It seems to have a problem with high demands on video apps, even running small QT files.
And for the second time, my charge cable literally melted right through, and was about to catch fire. My computer is incredibly hot as I type this.
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Why not ask Applecare to replace the whole laptop ?
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Yosemite - login screen on low res

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