Slideshow Fails in LRC 14

[johannes_9303]

Just installed the opdate for LRC 14: Since then the slideshow does not work anymore. An Error Message Apears "Dynamic Link-Medienserver konnte nicht gestartet werden" (Dynamic linc media server could not be launched). Tried a full re-install fron scratch  - even with empty catalogue. Problem persists.

[JLCKJC2015]

I have the same problem. Did you find a solution?

[johannes_9303]

No, I rolled back to LRC13

[JLCKJC2015]

OK, thanks for the feedback. I am waiting for a call from Adobe tier 2 support to continue trouble shooting this issue further. Will report back if it is resolved.

[johannes_9303]

Hi again, did anything come out from Adobe support?

Thanks! J

[DdeGannes]

@johannes_9303 , Lightroom Classic has been updated to version 14.2, have you tried updating to see if it now works?

[JLCKJC2015]

Thanks for the idea but unfortunately 14.2 and high is not compatible with my Windows system.

[johannes_9303]

I,ll check out 14.2 and let you know

Thanks for the recommendation

J

[johnrellis]

 "Dynamic Link Media Server failed to start."

"Thanks for the idea but unfortunately 14.2 and high is not compatible with my Windows system."

LR uses the component Dynamic Link Media Server to display video, including the video produced by the Slideshow module.  That component is maintained by another Adobe team.  The LR team released LR 14.0 without realizing that the latest version of Dynamic Link Media Server dropped support for older Intel CPUs, those without the AVX2 instructions. When uses on those older CPUs tried to run LR 14.0 and export video or use the Slideshow module, they got these errors.

So Adobe changed the system requirements of LR 14.1 and later to require CPUs with AVX2 instructions (introduced by Intel in 2013). If you have such a computer, and you wish to use video and slideshows in LR, your only option is to roll back to LR 13, which can be difficult if you've already done lots of editing in LR 14.

[JLCKJC2015]

I will pass this information on to the Tier 2 support team to see if they can trace this down. I suppect somthing changed because the problem only started after the last "compatible" LR update I installed. Anything after that is listed as incompatible. Thanks for the information.

[johnrellis]

We can most likely get to an authoritative resolution right now without wasting any more time with Adobe support. Do the LR menu command Help > System Info and copy/paste the entire contents here. That will confirm whether your computer supports AVX2 instructions.

See also this post from Adobe employee Rikk Flohr about the change to LR 14 system requirements:

https://community.adobe.com/t5/lightroom-classic-ideas/p-allow-cpus-without-avx2-to-install-adobe-pr...

[JLCKJC2015]

Thanks for the additional information. I was starting to wonder if the lastest version snuck in an incompatibility. Unfortunately I am now stuck--I can't go forward and I don't want to go backward due to a lot of edits done on Ver 14+.

It's unfortunate that sloppy version control is affecting Adobe customers like this. I will run this past the Tier 2 guys to see if there a possible resolution.

Again, thanks.

[johnrellis]

There is no resolution that will allow LR 14.1 and greater to run on CPUs that don't support AVX2 instructions. If there were, it would have been posted in the authoritative thread moderated by Adobe employee Rikk Flohr:

https://community.adobe.com/t5/lightroom-classic-ideas/p-allow-cpus-without-avx2-to-install-adobe-pr...

Your choice is to keep running LR 14.0 and live without slideshows and video support, or roll back to LR 13. People here can help you with how to roll back to LR 13 without losing your develop settings and metadata changes (though you'll lose stacking and collection changes made in LR 14).  Don't rely on Adobe support for this -- they're not to be trusted.

[JLCKJC2015]

I am working with Adobe Tier 2. They have tried a number of fixes but so far nothing has solved the problem. I am suppose to have another session with them next week after they spent some time researching the issue. Hopefully they will have some new ideas to explore. Again, if there are any developments I will report them back here.