Ventura 13.3 broke my screensaver--

interestingly if I wait long enough the screen saver eventually appears on both displays. Not sure how long that is and I only caught this behavior a couple of times.

I reported the bug, thanks to rotorblades for posting the link. I hope there are a thousand bug reports on this. Apple needs to know that they are getting really sloppy with their software releases.

I am having a similar problem since updating to 13.3.1 on my Mac Studio with three monitors - a Samsung 27" curved as my main display, a 2011-vintage Vizio 24" TV, and a Wacom Cintiq 24" as my extended displays.

I was able to run Flying Toasters screensavers on all three displays just fine prior to update. Now I get three black screens, even trying different versions of the screensaver (but it will still show the clock overlay!). Sometimes during initial preview the screensaver will display but only on the Cintiq, which is connected to the Mac Studio w/USB-C, while the other displays are connected via HDMI. Other third-party screensaver modules are also affected, such as SaveHollywood.

Ever since Steve Jobs passed, Apple has gone downhill. If he was still here Apple would be in a much better place than now!

I have the same screensaver issue and it is amazing that they don't have better quality control and testing in place.

They used to have the stock screensavers with predefined photos and then they just take it away in Monterey with no explanation! They add useless features and take away ones that people liked.

The same happens to me. It worked fine with three monitors ( one main, one 4K & one 2K connect via type-C cables ) from all previous versions. After upgrading to 13.3.1, it broke and now only work with 2 monitors, no more

After some simple tests, it appears that the screen that is selected as "Main Display" is the one that will not show any photos.

As someone else suggested, a different screensaver will work on both monitors, but NOT if it uses images from Photos (at least as far as I can tell).

2021 Macbook Pro M1 Pro

I just want to add that I have this screensaver problem also since upgrading to 13.3 on my Mac Studio.

I use Heiko Kretschmer's Flying Toasters screensaver and I've only seen it appear on my "Extended Display" since the update - not on my Main Display.

That has never been the case for me. I have 3 extended displays and none have ever played a screen saver that uses photos with this latest update. This is the same exact problem from a year or two ago with another macOS update. There is no fix or trick on our end to perform. I suggest just wait for apple and choose a non-photo based screen saver for now.

I have the same issue. I use my MacBook Pro screen closed and I only use another large monitor. the screensaver never comes up. It runs like the screensaver and the power managements are all turned off.

No, the screensaver preview has always showed just one screen in the past. It is clearly not the problem.

LePrezAtHome wrote:

Clearly a problem with the screen saver parameters, while Background and Screens parameters shows the

multiple displays I use, the Screen saver show only one display like if it is ignoring all the displays... and any photos related screen savers won't work.

No, it depends on the architecture, as I've said multiple times. Any screensaver that runs in the LegacyScreenSaver engine has the bug. Apple is working on it, as others have said.

Why does this thread keep going? Doesn't anyone read the thread?

Steve Mills wrote:

Why does this thread keep going? Doesn't anyone read the thread?

People who are not regulars in the forum generally seem to end up in a thread as the result of an internet search. They read the original post and then reply. So, no, frequently, they don't read the entirety of the thread. Not ideal, I agree.

Just chiming in that I'm having the same issue. I just updated to 13.3.1. And along with several other issues, I'm seeing my screen saver photos ONLY on my external monitor, not on my desktop iMac's screen. Up until this update, I would see them on both monitors.

Mac Studio here.

I finally got around to the latest Ventura update and the first thing I noticed was that it changed my display arrangement. I have 2 rows with a single monitor up top and 2 below. It put them all in a single row, and changed which monitor was the main screen.

As well, only 1 of the extended displays shows the screen saver images if at all. Other times, all displays are either black or show "No Pictures".

I had the same issue for about a month. I just tried unplugging the external monitor from my iMac and then plugged it back in and now the screensaver works on both screens again.

EDITED - oops, never mind. It only works on Preview, it won't work when it runs regularly.

Hi, not sure if someone else noticed that it is not a permanent error but intermittent.

I've been using the amazing Matrix screensaver https://github.com/monroewilliams/MatrixDownload/issues/11#issuecomment-1531082185 and when clicking on Preview many times, it happened approximately one in 10 attempts the screensaver engine worked fine.

I also had the screensaver kicking in properly once in many wrong cases (when it appears only on the external in the size of my laptop display).