Important part
Raspberry Pi 5 4GB
Packard Bell CT500 L15CX Monitor
(Plugged via VGA through a micro HDMI adaptor)
When the Pi is connect to the monitor without the SD insert the bootloader appears as it should.
When I plug in the SD and it boots raspberry pi os, the display cuts off.
It does display if I connect it to a different monitor or TV.
(so its defo working)
I have also tried this with my other Pi5 and the same issue occurs.
Attempts to fix
Tried safe graphics.
Tried HDMI group 2.
Tried HDMI modes.
Tried ubuntu server, pi desktop and pi lite.
Other details
When is diagnostics mode on the bootloader, the display has no EDID or much information about the display.
Raspberry Pi 5 4GB
Packard Bell CT500 L15CX Monitor
(Plugged via VGA through a micro HDMI adaptor)
When the Pi is connect to the monitor without the SD insert the bootloader appears as it should.
When I plug in the SD and it boots raspberry pi os, the display cuts off.
It does display if I connect it to a different monitor or TV.
(so its defo working)
I have also tried this with my other Pi5 and the same issue occurs.
Attempts to fix
Tried safe graphics.
Tried HDMI group 2.
Tried HDMI modes.
Tried ubuntu server, pi desktop and pi lite.
Other details
When is diagnostics mode on the bootloader, the display has no EDID or much information about the display.
Statistics: Posted by haywik — Fri Dec 26, 2025 4:38 pm — Replies 0 — Views 12