[for] how to configure Ubuntu server LTS20.04 not shown on the display terminal login information-CodePudding

I have one atom of industrial computer, installed Ubuntu LTS20.04 server, without a graphical interface, want to develop their own qt application interface, an external monitor with VGA interface display, but Ubuntu server will be displayed on the display after the user login information, there will be a part of the cover qt interface, everyone a great god, and how to close the Ubuntu server on the display shows the user login information?

CodePudding user response:

Is the terminal still on?

CodePudding user response:

reference 1st floor mouse_zhu response:

is in the end still on?

What meaning, don't understand,
At first, an external monitor, the boot process will produce some kernel log, start will be displayed after the completion of the user login prompt, I modify the grub a printout of the kernel log to a serial port, but the user login prompt is still there, don't know how to configure is not shown on the display,

CodePudding user response:

Best to photograph

CodePudding user response:

The unknown

I guess, login should be automatic login, and then make the kernel information output to other places, but the login information is not all the way and the kernel log, still will be displayed, then the qt program should be started automatically, or after the login, the login information out before you start, then part of qt interface was covered

That should put qt login information out before you start, then refresh interface or login information,

Have a stupid way, you can write a shell script, delay qt start, clear the screen before start the qt, by the way,

CodePudding user response:

reference 5 floor niuiic reply:

unknown parameters
I guess, login should be automatic login, and then make the kernel information output to other places, but the login information is not all the way and the kernel log, still will be displayed, then the qt program should be started automatically, or after the login, the login information out before you start, then part of qt interface was covered

That should put qt login information out before you start, then refresh interface or login information,

Have a stupid way, you can write a shell script, qt start delay, by the way, clear the screen before start the qt,

Should be launched a virtual terminal, don't know where can I modify the virtual terminal to the serial port

CodePudding user response:

I'm a little don't understand where your qt is running, continue to guess,

There is no desktop, then naturally is to enter the terminal, but also is not a virtual terminal, is the terminal system, has been shown above is devices tty1 (desktop environment is running on devices tty1),

Well, it seems that you are no boot automatically logged in, so if you have a graphical interface, should be run on the devices tty1, if you install an X, and the qt run on X, it should be in the terminal operations,

If there is no boot from the start, would be to use a command can be run, there should not be covered, unless you're still has application background in the output information, such as a DHCPCD & amp; And the output information will cover the qt interface,