M2 Mac Mini / Display on HDMI does not wake up

[bedawi]

I have installed the Fedora Asahi Remix on my M2 Mac Mini. I connected an LG 4K Display to HDMI.

Problem:
When the screen is being turned off (after locked screen or suspend) it does not turn on again. The monitor wakes up but turns off again because it does not receive a signal.

Please let me know what information you need to diagnose this issue.
Thank you very much for bringing Linux to the Mac.

[code-mart]

I am seeing the same behavior, but I haven't been able to solve it either.

[code-mart]

Meanwhile, I have disabled suspend and automatic screen off in the settings.

[code-mart]

Meanwhile, I have disabled suspend and automatic screen off in the settings.

Unfortunately, that apparently did nothing to solve the problem 😬

[akhanpara1]

i also have mac mini m2 when installation done after that only see asahi logo and nothing not boot ubuntu

[code-mart]

Still having this issue after updating today, but maybe this is not the correct repository for this issue to be reported in? It's not a documentation issue, after all. @marcan, should this issue be moved to a different place?

[E-man-dev]

I can report that the same thing happens with the HDMI on my 2021 MBP 16”. Works before sleep, does not send a signal after sleep.

[sithmike]

Also same issue on m2 mac mini, just installed gentoo so freshly compiled kernel, and the same thing happens

[TomasOliveiraSilva]

I installed Asahi linux yesterday on an M2 Mac mini and all went smoothly. Awesome! My Mac mini is connected via HDMI to a Dell monitor, which is also connected to another computer. I lose the HDMI signal on the Mac after telling the monitor to display the connection to the other computer; when I switch back, the display says there is no HDMI signal and enters power save mode. Likewise if I disconnect and reconnect the HDMI cable. Fortunately for me, I had already installed and activated the ssh server, so I can still work remotely. Still, this is a major nuisance. Hopefully, this will be corrected in the near future.

dmesg says (there are other messages, but this one is omnious):
[87535.364237] apple-dcp 271c00000.dcp: RTKit: syslog message: nifiedPipeline.cpp:7739: setmode failed

[cxvisa]

I got my M2 Ultra based Mac Studio and the Asahi Fedora mix rocks on it. I have switched over all of my development related activity on to it and in general very happy. Thank you team.

But, I m also facing very similar issue. The display on HDMI does not wake up after some idle time.

[jb747]

I have been testing using a KVM with a mix of Intel and Apple Silicon Mac minis running Fedora 40.

They all switch successfully running OSX on Apple Silicon and Fedora 40 on Intel, sometimes taking 3-4 seconds to switch.

When I boot the OSX systems to Asahi Fedora 40 server they no longer switch consistently. Sometimes the keyboard will flash. Other times it won't. Sometimes the display will switch. Other times it will announce "No signal detected". A few times, not often, the switch works.

It seems that the Asahi implementation may abandon the switching process earlier than the other operating systems.

[jb747]

A Malarpon HDMI EDID Emulator, 3rd generation, 1920 x 1080@59 Hz plugged into the Apple Silicon Mac Mini HDMI ports enables smooth switching in my environment. There are quite a few similar devices at different price points - YMMV.

[edencaldas]

Same thing happens to me. The only way it detects the monitor back is if I restart he mac.

[milindnirgun]

Facing the same issue on M2 Mac Studio. Started happening after last update.