"choppy" slide transition during presentation

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Level 1

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"choppy" slide transition during presentation

Whenever the slides in my presentation contain charts or graphs, the transition to that slide becomes "choppy" and slow. I press the spacebar to go to the next slide and it lags for about 10 seconds before going to that slide with graphs. Other times, when I use more dramatic transitions, it simply becomes "choppy". Why does it hang during presentation, and how can i fix it?

*NEED HELP PLEASE*

+Many Thanks+.

MacBook Pro, Mac OS X (10.5.2)

Posted on Apr 28, 2008 6:30 AM

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Answer 1

Tulse

Level 5

5,812 points

Apr 28, 2008 7:19 AM in response to doc_bna

What kind of system are you running on? Some transitions and builds take more graphic horsepower, and some graphics and images can take time to load on a system with relatively little RAM. Generally, I find that performance on a presentation improves greatly if you run through it once immediately prior to presenting -- Keynote seems to cache the presentation in memory, and thus doesn't have to read it in from disk.

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Answer 2

doc_bna Author

Level 1

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May 1, 2008 12:21 AM in response to Tulse

Am using a Mac OS X 10.5.2 (2.16 GHz Intel Core 2 Duo, 1 GB 667 MHz DDR2 SDRAM) system.
Yes, i had tried your suggestion previously - it works BUT the same choppy transition repeats itself after every presentation). Any permanent solution? Many thanks, but still hope for a more permanent solution.

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Answer 3

Kyn Drake

Level 7

21,597 points

May 1, 2008 3:53 AM in response to doc_bna

What's on the slide both before and after the transition? Maybe the problem is with Keynote trying to render everything while also performing that effect (if it's choppy, I'm assuming it's a 3D effect like Cube?).

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Answer 4

May 1, 2008 4:47 AM in response to doc_bna

Hi
Looks like your machine should be up to the job.
Try setting your Keynote pixel size to the same size as your presentation monitor. That way Keynote is not trying the do any resizing

regards

lee

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Answer 5

doc_bna Author

Level 1

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May 3, 2008 4:59 AM in response to Kyn Drake

Yes, the "dramatic" transitions i refer to: cube, doorway, droplet, color planes and the like. The "choppy" or slow transition however happens only when i display charts and grafts in the "3D" format.
Need HELP Pls.

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Answer 6

Kyn Drake

Level 7

21,597 points

May 3, 2008 9:18 AM in response to doc_bna

Ok, try copying passing the chart through preview to change it from something that needs to be calculated on the fly to something that is JUST a chart. (First, be sure to save off your original presentation so that if you need to change some values, you can do that easily).

With this backup presentation, select the chart, Copy, Open Preview, Do Command-N, Copy, then paste back into Keynote over the other chart. Delete the original chart and then try the presentation like that. If it works better, then just keep that as a separate "presenting" document, making updates as needed from your original.

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Answer 7

doc_bna Author

Level 1

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May 7, 2008 8:51 AM in response to Kyn Drake

Kyn D., Your suggestion WORKED wonders. In fact, i even learned a quicker method - that is, by just dragging the original slide (with "choppy" transition) to the desktop, then reloading it into a new empty slide, and WOW - all the "choppy" transition issue resolved. Many thanks.

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Answer 8

Kyn Drake

Level 7

21,597 points

May 7, 2008 2:08 PM in response to doc_bna

Fantastic! Glad it worked for you 🙂

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Answer 9

May 19, 2008 4:02 PM in response to doc_bna

I'm having the same transition issue using my Macbook Pro.
When I'm using "cubes" in the transition, it becomes choppy and a bit slow.
It only does this when connected to the LCD projector. When I disconnect the computer from the LCD, it runs fine.
I tried it on other LCD projectors and am having the same issue. I never had a problem before, I must have changed something in the settings--but what?

Any ideas?
Thanks

Message was edited by: scullymulder

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Answer 10

cjyetman

Level 1

0 points

Jun 29, 2008 12:36 PM in response to doc_bna

Possible Solution:

Open Keynote's preferences and go to the Slideshow pane. Uncheck "Scale slides up to fit display"

This fixed my issue 100%. Charts were fine on my slides until I stretched them... then the slide would be completely unresponsive and it would take 30-40 seconds to display. Turning off scaling makes them work perfectly.

-cj

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