Preview slideshow pixelated

I've just upgraded from Snow Leopard to Mountain Lion, and I'm trying to figure out how to recover proper image scaling during slideshows. When the option to scale images to fit the entire screen was selected in Snow Leopard, the images were well scaled (using some kind of interpolation), and looked fairly smooth. In Mountain Lion they are horrible - no interpolation, badly pixelated. Is there any way to recover the good behavior from Snow Leopard?
To be clear, I'm not trying to rescale images permanently or one-by-one. I just want the temporary rescaling during a slideshow that Snow Leopard provided.

I'd also settle for another program that can do the same thing. I've thus far tried ViewIt, Xee, and Phoenix Slides, and they all have the same pixelation problem. (I can understand that - putting in good interpolation takes effort. What I don't understand is that Apple had good interpolation, and took it out.) Lyn does the interpolation fine, but has way too many other features - I just want a very simple slideshow.

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How do I get Preview Slideshow to appear in external monitor/projector

In Preview in Snow Leopard, I could set up a slideshow and use it for presentations through an external monitor or on a screen using a projector. I did this by dragging the Preview window onto the external monitor and then clicking on View/Slideshow. A kind of poor man's PowerPoint presentation, but very quick to set up. Now, unless the displays are mirrored, as soon as I click on View/Slideshow, the slideshow is "sucked" back onto the screen on my MacBook, leaving the external screen blank.
I have found that there are alternatives to Preview available, like Xee, but with the Preview slideshow feature, only the pictures appear on the screen, with all the background being black, which looks more "professional".
Does anyone know if there's anything I can do to stop the Preview slideshow ending up back on the MacBook?
David

There is something terribly wrong with Lion's support for two monitors, compared to previous Mac OSes, and it looks like you have found another instance of that fact. Oddly enough it seems like QuickLook may work where Preview doesn't. Anyway, I have two monitors and if I move a folder full of images to the secondary monitor, then select the images and right click and then click QuickLook in the Contextual Menu, then click the full screen arrows and the play button, the slideshow will play on the second monitor. If I open the pix in Preview, move the Preview window to the second monitor, and select "Play Slideshow" it promptly moves everything to the main screen, ditto for clicking the full screen arrows within Preview--moves to main monitor and in effect turns off secondary monitor. So give QuickLook a try and see if that will work for your purposes.
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USB Pointer problems with Preview slideshow view

I often give talks for which my slides are in PDF format (typically produced using LaTeX). Under Mountain Lion I could open the relevant PDF in Preview Slideshow View and click between slides using a Logitech pointer (Model R-RB5). Since updating to Mavericks, however, the pointer will no longer advance slides. It seems to work as expected to move between pages if Preview is not full-screen, or if it's in full-screen mode, just not in slideshow mode (and full-screen mode isn't ideal for giving talks). All seems to be fine in Adobe Reader, but I prefer Preview for one or two reasons, so any suggestions would be appreciated.

Everybody, report preview problems to apple at:
http://www.apple.com/feedback/macosx.html
My biggest problem in preview 4.0 is it freezes while trying to view large images across four apple LCD's. Sometimes I see a gray screen.

Importing RAW images, previews stay pixelated in LR

I don't remember having this problem before when I imported my images before but now when I import into Lightroom, the previews stay pixelated rather than sharpening up. I went to Bridge and took a look at them and they all sharpen up after a few se4conds when being imported. What's causing this and how do I fix it? I am using a G4 867 Tower with 1 GB of RAM, OS 10.4.11. I am new with LR, but I've been successful before and didn't have this problem. I am using a Canon 20D.

Hi, there. Finally had time to get back to the computer. I changed my Import Photos>Preview setting>standard, as well as 1:1. Still looks pixelated. I am importing about 100 images. If I choose only one image, it does the same thing. What's the next step?
I do not have Auto Import enabled, since my folders>subfolders hierarchy is complicated, but they are RAW images, not processed, just moved into folders from my CF card. So, there is no .xmp info on it, although I am importing it with my Preset Copyright info.
Yes, I know my G4 is now a dinosaur, but I haven't had this problem before. If I import it anyway, will it still be alright in LR, or will it show up that way in the database?

An internal error has occurred: ?:0: attempt to index a nil value after installing LR5.5 update and trying to play or preview slideshow

An internal error has occurred: ?:0: attempt to index a nil value after installing LR5.5 update and trying to play or preview slideshow. Never had this problem before. I went to forums and see that this is a problem with previous versions and this only occurred after installing lastest update.

Jeannine,
If you follow the advice of the previous poster Julie Kmoch and then gradualy add presets back in one at a time you might be able to find the one that is causing the issue. I may be guessing, but I believe the issue has something to do with either an incompatible Preset setting (eg a older preset in newer version of LR) or a corrupt Preset.
Say you bought LR2 and imported a bunch of Presets from the internet, cuz 'Hey these effects are cool and I don't have to recreate the wheel', and then you upgraded to LR3 (not a clean install) and now one of the Presets that calls a certain slider setting or value that is different in LR3 doesn't work anymore. This might be why it throws the error, but again I am just speculating.
Location of LR Preset folder in Windows Vista/ Windows 7
C:/Users/<YourUserName>/AppData/Roaming/Adobe/Lightroom/Develop Presets
If you do not see the folder AppData, you may need to change the settings in Windows Explorer to 'Show Hidden Files and Folders'. To do that in Windows Vista/ Windows 7, open a Windows Explorer window, Click on Organize, then Foler and Search Options. Then click on the View tab and select the option button next to Show hidden files, folders and drives.
Hope this helps a bit,
Glenn

Using the Preview Slideshow

Is there any way to set the time for displaying a picture using the slideshow feature in Preview. There doesn't seem to be any way to set it in Preview Preferences.

Sorry for the late reply. I've been having issues with my cable connection. The only reason for the Preview slideshow is that I can do a slideshow from the pictures off my memory card, without downloading them to iPhoto. In Preview Preferences, I select "Open all images in one window". I have a card reader & all I do is select the files on the memory card & then Preview slideshow. If you take a bunch of pictures & want to see them right away, without having to download them, for me, it's a lot easier to do a slideshow that way.

Internal error when trying to preview slideshow

Hi all, this seems like an error a few people have had but I cant seem to find an answer for this.
Regarding Lightroom Slideshow module: When I click on the preview button I get the following error:
An internal error has occurred: ?:0: attempt at index a nil value.
This occurs with any group of images I select in my catalog.
I feel this is due to a permissions fault. I was previewing slideshows fine until yesterday when I deleted one of the users profiles on my windows PC. Since then the problem has occured. I now have only one user profile (password protected admin).
Anybody any help? This is a real pain and I'm having to wait a long time exporting slideshows rather than a quick preview.
I've tried in LR5 and the newly downloaded LR CC.
Any help appreciated.
Regards,
Dan

Hi there,
Are you able to reproduce the issue consistantly with the project. Can you please ask your coworker to publish a blank project and see its working fine or not?. In case if the issue is project specific, then can you please send the .cptx file to us so that we can investigate the issue at our end. Please upload it to a shared workspace(Acrobat.com) and send me the link at [email protected]
Thanks,
Nimmy Sukumaran.

How to prevent energy saver while viewing Preview slideshow?

If you have the energy saver set to black out the screen relatively quickly, it will kick in while Preview is displaying a slideshow. For some other applications this does not happen, like DVD Player. Is this just an oversight? I cannot find any setting for this.

Yes, it does seem to me like what works in iMovie and DVD Player should work in a Preview slideshow too. Too bad that it doesn't.
You can file an enhancement request at http://bugreport.apple.com. It requires a (free) ADC membership. If Apple considers your request worth implementing, you can look for it in a subsequent software update.

Preview "Slideshow Mode"

Hey everyone,
When I view a PDF in "slideshow mode" in Preview, I miss two features. Maybe I am blind and you can point out what to do:
1) The PDF always opens up on the main screen (I have a second screen attached to the MacBook, which I normally would use for a presentation.. Think of a projector..)
2) One cannot use the Remote Control!? How come I can use it in virtually any other program, including Keynotes etc. but not for simple PDFs?
If this shouldnt be possible with Preview under Tiger, is it possible with Leopard?
Cheers,
-Hendrik

Thanks for your swift reply M.
I think I should've been more clear in my post. I'm used to using the arrow keys on my keyboard for flicking through the pages of the pdf and this doesn't work when entering slideshow-mode, it used to work in Tiger.
Your solution is similar to the "Index"-sheet thing I used to do. When you hit the play-button you can't immediately start browsing the pdf, you have to wait until the second page loads, right? After that the arrows are working as they should, I think this behaviour should be initiated immediately upon entering the slideshow-mode.

Viewing preview slideshow on two monitors

When I have two monitors working at the same time (20" apple flat + my 12" powerbook I have this problem: i go to view a slideshow from preview, nothing appears but a blank black screen. When I press the index sheet button, all the pictures appear in the index format clearly visible. I then press a picture from the index sheet and the selected photo zooms in to fill the screen where for a short moment ( say 1 second ) it stays before disappearing again to the black screen. Could anyone be so kind to let me know how to rectify this problem. But when I just use the powerbook to use preview's slideshow, it works. Please does any one know what the problem is here, and if there is a solution?

Sorry if I was unclear.
Like the screen saver, I wish to play my slideshow on 2 monitors simultaneously (not either/or, one at a time, as your suggestion does).
Screen saver alternates between my 2 monitors, zooming and panning à la the Ken Burns effect. With hundreds of pics, it can go through them in half the time, without having to cut the individual slide duration in half.
I then go to iTunes separately to start a playlist playing.
It appears that when Aperture says that it can make use of 2 monitors, it's only one at a time. I use shift-s to create a quick slideshow that I show to customers; I have to hem-and-haw when they ask, "Why don't you show it on both monitors? Even Screen Saver can do that. I thought Aperture was a pro application."

Can Preview Slideshows Target A Different Display?

Can the Slideshow feature of Preview use a different display (without mirroring or rearranging displays)? I can drag Preview's Slideshow controls onto a different display, but there doesn't seem to be a way to tell Preview to use a different display for the Slideshow itself.
GraphicConverter, and PowerPoint have a preference. I would have thought Preview would be cool like Keynote, and use the display its primary active window is on.
Thanks in advance.
PowerBook G4 Mac OS X (10.4.6) 1 GB RAM

It sounds like the screen may be zoomed in slightly. Go into System Preferences/Universal Access and turn screen zooming off.

Preview Slideshow Transitions Help

Hi Folks, we're running OSX Mavericks and are troubleshooting this little issue: on all previous versions of Preview, one could run a full-screen slideshow using a group of photos/pdfs/whatever, and each 'slide' would transition to the next using a smooth crossfade effect. Now I just get a a hard cut from one photo to the next; no smooth transition at all. I've not found anything in Preferences that allows me to change this. Our broadcast facility uses Preview extensively as a down-and-dirty get-it-on-the-air-quick photo display platform, and the hard cuts look really crappy and amateurish compared to Preview's old smooth crossfades. Any ideas? Thanks!

In the Menu section of the preferences, try changing from hardware encoding to software encoding. Also try converting your slideshow to a track.

Preview Slideshow

Whenever I open a batch of pics in Preview and choose the option to view them as a Slideshow the pics display in a completely random order.
Is there any way that I can get them to display in numerical order? i.e the order I took them in.

not to offend anyone, but with all respect that isn't a solution. There are many reasons why someone would want to view images in Preview in the order they were taken or some other sorted order. A slideshow program is not a PREVIEW program. Preview is a program for doing exactly what it says PREVIEWING. Unfortunatley Apple has stricken it with many limitations that make it less than desirable for PREVIEWING sets of images efficiently. hopefully though, i can help you with your problem.
as for your issue, i personally do not have that problem when viewing images. i see you're running 10.4, so i assume you've also run all software updates that it has thrown your way. if that is the case, im stumped as to why your Preview would behave differently than mine.
so here are a few things to look at, if you've not been aware of them to this point.
have you right-clicked (ctrl-clicked) on an image in the drawer before going to Slideshow mode? If you do this it gives you options for sorting your images in a particular order. You can also drag and drop the images in the image drawer to change their order. you can also drag images from the Finder into the image drawer to add them to the set. i've tested these features and when i go to Slideshow they appear in Slideshow in the order I sorted or placed them in. MAKE SURE you realize that whichever image in the drawer is currently selected when you choose Slideshow, that it will be the first image to be shown. Selecting the first image in the drawer will get Preview to start with the first image in your set when you go into Slideshow mode. You should also notice that if you go to Index view when in Slideshow, that your images should appear from Left-to-Right-Top-to-Bottom (like reading a book) in the same order as they appeared in the image drawer (Top-to-Bottom) before entering Slideshow mode.
i hope this helps. if you continue to have problems, i would suggest next taking a look at your filenames. i've not been able to test this theory, but if the images you're viewing don't share a similar structure (ie, DSC001.jpg, DSC002.jpg) but are random filenames (ie JohnBoylaughing.jpg , 2007vacationpic.jpg) then it could be possible that the Image Drawer is sorting "properly", but the Slideshow component of Preview is interpretting the names, dates, etc different. To test this, rename the files 001,002,003, etc, and see if that makes a difference for you.
again i hope that helps.
i personally struggle with the fact that when an external display is attached to my laptop, i am unable to get Preview to go into Slideshow (fullscreen) mode on the attached display. It always defaults to the laptops display. oddly you can drag the Slideshow controls to the external display, and it will stay there, EVEN if you leave Slideshow and return, it'll stay on the External display, but the Slideshow will default to the built-in one. but thats a whole different discussion now isn't it
good luck
ralph

Preview Slideshow stop screensaver

When I am using the Slideshow from Preview (version 4.0 (469)) on OS X 10.5.1 the screen saver comes on in the middle of slideshow.
Does any body know how to stop this?
I would expect the screen saver to come on when the slideshow gets to the end but not in the middle!
thanks
Morgy

No. It's only for the full screen slideshow.
OT

Preview.app - pixel selection dimensions are back!

Here's another of Snow Leopard's little unreported fixes.
I asked a question in the "Using Mac OS X Leopard forum" back in January 2008:
"In Tiger (OS X 10.4), when I wanted to crop an image in Preview, I would make a rectangular selection by clicking and dragging. If I held down the Option key while doing so, a little window would appear next to my cursor that displayed the pixel dimensions of the selected area. This allowed me to adjust the selection to precisely the size I wanted, which was very useful. However, in Leopard (OS X 10.5), this feature seems to have disappeared. I hold down the Option key but that little selection dimension display doesn't show. Did Preview lose a feature in the Leopard upgrade, or am I doing something wrong?"
In Snow Leopard, this feature has been reinstated and appears to behave the same as it did in Tiger. Hooray! Thanks for listening, Apple!

Sounds great -- but is that possible?
Sure is. I just launched the Tiger Preview, and it is still working in 10.5.2 (and you can still constrain to a square by holding down the Shift key). See the directions in this thread:
http://discussions.apple.com/thread.jspa?messageID=5889735
If you have a problem, see my reply near the bottom. I needed to do one more step than the original hint to get it to work for me.
Francine
Francine
Schwieder

Preview slideshow pixelated

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