Screen Goes Black after a few minutes

I've noticed that the problem never happens when watching a DVD or a TV show purchased from the itunes store.

Otherwise, the screen seems to always go blank after about five-ish minutes without any trackpad/mouse or other input.

For me it's been more of a minor annoyance but I'm looking forward to a solution nonetheless.

Noticed this as well. Seems there must be a call in iTunes which prevents display sleep when viewing video content. I'm hoping the upcoming 10.5.2 update addresses this very annoying bug.

Not just iTunes. I use VLC Player, screen doesn't dim when using it.

Bad news, today my MBP screen goes black after 2-4 minutes "With the screen set to never sleep"

I bought my MBP 2.4 one month ago with Leopard pre-installed. I noticed I have the same problem. I set the energy settings so the screen should never turn off, but it still goes black after a few minutes.

Very annoying issue. I hope Apple is monitering this issue and will send an update soon.

I did take my computer back to the Apple store, they did an archive/install, but the problem remains.

I have another problem with Front Row locking up on me occassionally as well..

is this problem only affecting mbp, intel machines? or is it hit or miss? my powerbook and my sister macbook have run leopard just fine and don't have the display issue, however, my mbp has the issue. thanks in advance.

I'm having the same problem, with a brand new MBP 2.2 running Leopard 10.5.1 !!!

i think i solved it on my machine. after 2 clean installs and 2 upgrade installs from a back up, i think i finally beat this bug. i checked the box that says automatically reduce the brightness of the display... it's been 9 minutes now and the screen hasn't gone to sleep. it was going to display sleep in 3 minutes or less before, so i'm hoping this is it.

ok, i waited about 15 mins and finally went back into system pref. and unclicked the automatically reduce the brightness... and now it's been 8 mins and it hasn't gone into display sleep.

So what exactly was your solution? I'm not following it....Do clean installs multiple times until it magically seems to go away? I was hoping for something a bit more...err...scientific. 😉

BTW, I've reinstalled Leopard about 5 times on this laptop, from 10.5 discs, upgraded to 10.5.1, and the problem still remains.

no, i don't think the installs did anything. i was just trying anything at the time. but checking the brightness has worked for now.

Yes, it works, but I do not like how my screen saver is
now very overshadowed.

Hope things return in the right way with 10.5.2

What I have noticed is that this seems to be a problem with MacBook Pros with LED backlights. I worked on a previous model MBP (was purchased 10/06) that never suffered this problem. When I got a newer LED model I noticed this anomaly but then began having problems with the Mac waking from sleep until the display wouldn't light up at all. This was the problem I ultimately went to see a genius about who seemed completely mystified by it. If such problems had occurred in their store models they hadn't noticed. They switched mine out for a new one which, up until today (today when I changed the displays sleep time to something besides "never") hadn't shown any signs of the past problems. I assumed when I took mine in that these problems were connected but perhaps they're not?

I'm not having any problems with the sleep issue yet (Genius said that was a bad inverter) but it's disheartening that all Santa Rosa/LED MacBook Pros seems to suffer from this and that Apple hasn't produced a fix (or recall) for it.

I've had this problem too and it was clearly a compatibility issue between Leo and my screen saver. It always happened when I used the Marine Aquarium screen saver which officially doesn't like Leo very much. It worked fine in Tiger. Once I've changed to newer screen savers, the problem disappeared. It's a shame as I very much like to watch the fish but on the other hand the 3 min black screen was driving me mad. I think only few screen savers work flawless with Leo but for anyone who would like to try: I've had NO black screen since switching to i.e. the SETI@home screen saver.

I have this problem with no screensaver.