No VIDEO Signal after System Clone

[Toni Sirkiä]

I booted into recovery environment and used Disk Utility to restore my installed macOS Sequoia to a new SSD - drive .

The new SSD - drive was connected via USB during the restoration . Disk Utility informed, that the restoration process was completed successfully ;

Oh, well I thought ...

but now as I ripped the former SATA - drive off and replaced it with the new cloned / SSD - drive I get no video signal .

I can see the hard drive is being read and after a while the indicator led stops from flashing, this all proceeds in much less time, than with the former SATA - drive .

I guess the OS (macOS Sequoia) is fully booted, but as stated no sign of life on my HDMI - connected LG-TV / display .

I know it must be a software issue on the macOS - level, c'os both of my displays are working as I'm typing this on the same PC / Windows 10 .

I'd really much appreciate it, if someone gave a helping "hand" here .

 

/ Toni .

[Alexia Amber]

On 7/13/2026 at 1:15 AM, Toni Sirkiä said:

I booted into recovery environment and used Disk Utility to restore my installed macOS Sequoia to a new SSD - drive .

The new SSD - drive was connected via USB during the restoration . Disk Utility informed, that the restoration process was completed successfully ;

Oh, well I thought ...

but now as I ripped the former SATA - drive off and replaced it with the new cloned / SSD - drive I get no video signal .

I can see the hard drive is being read and after a while the indicator led stops from flashing, this all proceeds in much less time, than with the former SATA - drive .

I guess the OS (macOS Sequoia) is fully booted, but as stated no sign of life on my HDMI - connected LG-TV / display .

I know it must be a software issue on the macOS - level, c'os both of my displays are working as I'm typing this on the same PC / Windows 10 .

I'd really much appreciate it, if someone gave a helping "hand" here .

 

/ Toni .

Have you tried booting into Safe Mode with the new SSD installed, or resetting NVRAM if your hardware supports it? Since the old SATA drive still works, it might be worth booting from it and checking whether the cloned system has the correct graphics configuration and boot settings. Does the new SSD show the same issue when connected through USB, or only when installed internally? That might help narrow down whether it’s related to the clone or the drive setup.