How to run qt program tray display with root

[leisureg]

I can run qt program in ordinary user to display the tray, but cannot run with root permission to display the tray

[mrjj]

Hi and welcome to the forums
Why not?
What happens?
Does it say error?
What OS are you on?
What tray are you talking about?

[leisureg]

@leisureg said in How to run qt program tray display with root:

tray

Command line display：QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-root'
tray error

I am using ubuntu18.04
I want it to appear like a power source in the upper right corner of the operating system

    if (!QSystemTrayIcon::isSystemTrayAvailable())
    {
            qDebug() << "tray error" << endl;
    }

sudo run it will into qDebug，but general authority don't

[SGaist]

Hi and welcome to devnet,

From what I remember, by default access to the X server is disabled for root for security reasons. You have to explicitly allow it.