Failed to connect to Mir: Failed to connect to server socket: No such file or directory
I attached a keyboard to my board and opened it's terminal(by right-click inside it's openbox window) and executed my program successfully and it showed my picture in the SPI LCD!
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WDR
Updated on September 18, 2022Comments
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WDR almost 2 years
I have installed
libgtk-3-dev
and wrote and compiled this code successfully(without errors I mean):#include <gtk/gtk.h> void destroy(void) { gtk_main_quit(); } int main (int argc, char** argv) { GtkWidget* window; GtkWidget* image; gtk_init (&argc, &argv); window = gtk_window_new(GTK_WINDOW_TOPLEVEL); image = gtk_image_new_from_file(argv[1]); g_signal_connect(G_OBJECT (window), "destroy", G_CALLBACK (destroy), NULL); gtk_container_add(GTK_CONTAINER (window), image); gtk_widget_show_all(window); gtk_main(); return 0; }
But after trying to run the executable it says:
(process:5771): Gtk-WARNING **: Locale not supported by C library. Using the fallback 'C' locale. Failed to connect to Mir: Failed to connect to server socket: No such file or directory Unable to init server: Could not connect: Connection refused (img:5771): Gtk-WARNING **: cannot open display:
I should say I use Ubuntu-server 16/04 and installed
xorg, xserver-xorg-video-fbdev, openbox
packages too. I have a gray blank screen with a black mouse and right-click menu after boot.EDIT: I used this command to connect to my board:
ssh [email protected] -X
Then program worked and it opened the image by./img 1.png
but in my laptop that I used for ssh! I liked to open the image in my board's LCD, not in my laptop!Also it gives me this message in terminal:
(process:1909): Gtk-WARNING **: Locale not supported by C library. Using the fallback 'C' locale.
SOLUTION:I attached a keyboard to my board and opened it's terminal(by right-click inside it's openbox window) and executed my program successfully and it showed my picture in the SPI LCD!
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karel over 6 years
./test 1.png
works perfectly on my computer so your code works OK, there must be some problem with the operating system, probably related to the gray blank screen with a black mouse and right-click menu after boot. If the code is OK and there is an OS problem then this question is on topic. For example theFailed to connect to Mir: Failed to connect to server socket: No such file or directory
error may be because you executed a command as root that didn't need to be executed as root. -
WDR over 6 years@karel: here I said how did I run my display! I think the problem is here: unix.stackexchange.com/questions/401884/…
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WDR over 6 yearsI used
startx
command inside/etc/rc.local
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