macOS 13 Ventura BREAKS Panasonic TV connection via HDMI

The bug remains in macOS 13.5 (22G74) Ventura. Apple: please, please, please, fix it. Some Intel Macs cannot be upgraded beyond Ventura. Thanks!

I also have this problem. Apple WTF, fix this ASAP.

i can pretty much guarantee this won’t be fixed. There’s no way they will dedicate engineers into this intel related issue. I basically have a huge Panasonic monitor mounted above my Mac that I’ve not been able to use for the best part of a year. I’ve been following this bug for such a long time that now that Ive realised it’s just never gonna be fixed.

This is very idiotic of Apple. The upgrade to Ventura provided me only pain, I think I will try to downgrade to Big Sur, who worked just fine for everything I need.

This is just too bad, Apple! In the future I will think twice about buying products from a company like Apple which simply decides to make your expensive up-to-date (!) periphery unusable without any discernible reason. I used Panasonic TVs as screens both in our department as well as at home. What to do now? Talking about sustainability...

Does anybody by any chance know any workarounds – perhaps an interface (in the form of a small box?) which one could interpose between our Intel-Ventura-Macs and the Panasonic TVs?

Hello,

same issue here with a MBP 2020 i4 running Ventura. I’ve run out of options since nothing works. (Safe mode, display detection, other adapters, NVRAM PRAM reset, other HDMI cables, other HDMI ports on TV, TV reset)

I sent a full feedback onto apple dedicated website as previously suggested.

Though when I looked up “Panasonic”, the search query returned no results.

Every involved end customers in the thread should indeed escalate it back to Apple.

I will try to obtain technical data with Panasonic Customer Care such as DisplayPort supported versions and supported resolutions. DP-Alt compatibility and so on? Could we start a class action ?

Request to Panasonic (Belgium) sent!

#Incident: ****

”Dear,

for about several months, many users of a Panasonic such as me, of a TV and Mac under Ventura 13.5 computers are experiencing no image displayed at all.

See:

macOS 13 Ventura BREAKS Panasonic TV conn… - Apple Community

My TV runs the latest update. Ver.3.1222

Apple seems on the other hand reluctant to find a workaround to Ventura users. Therefore could you please ask Panasonic headquarters for the technical specifications of my TV regarding these very important points:

-Supported DisplayPort versions;

-Supported refresh rates and screen resolutions;

-Support of DisplayPort Alt modus;

-Any other relevant information regarding the communication happening through HDMI between a computer and this TV.

Best regards, and thank you for your cooperation,

Nicolas L.”

[Edited by Moderator]

Confirming that I have lost external Apple display monitor after Ventura 13.5 update.

I have seen other post were changing the version of HDMI used by the TV in its on screen menu as helped other people with different TVs. Is there such a setting in the Panasonic TV?

ApMaX wrote:

Thanks Barney-15E, but that does not fix it, since the Panasonic TV software was already updated. For instance, Panasonic TV system software version 3885-10502 for Panasonic TX-L47DT60E. As shown at

That's not what I was talking about. There are various versions of HDMI. Some TVs have the ability through the onscreen menu system to change the HDMI version used.