Display dsi check

[jax7121]

hi guys, is there a way to check if the dsi touchscreen display (of a remote raspberry) is working or not?

[DougieLawson]

A tvservice -s command will return this:

Code: Select all

pi@tranquility:~$ tvservice -s
state 0x400000 [LCD], 800x480 @ 60.00Hz, progressive
pi@tranquility:~$

[jax7121]

hi, thanks for the reply. I was already aware of the "tvservice -s" command.
But my goal is to monitor the display in real time. Let me explain: If I start the raspberry with the display connected (powered separately from the rasp) and run the command "tvservice -s" the answer is as you say "state 0x400000 [LCD], 800x480 @ 60.00Hz, progressive". But if I disconnect the power of the display alone and relaunch the control command I get the same answer.
Is there an alternative command to identify correct operation in real time without restarting the rasp? Thanks in advance.

[DougieLawson]

There's nothing to monitor. If the display goes off you can't restart it without a reboot.