Feature #751: Add function to find X.org VT - libpibox - Graphics Muse Issue Tracker

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Feature #751

closed

Add function to find X.org VT

Added by Hammel over 4 years ago. Updated over 4 years ago.

Status:

Closed

Priority:

Immediate

Assignee:

Hammel

Target version:

PiBox - 2.0 - Harkonnen

Start date:

10 Mar 2020

Due date:

% Done:

100%

Estimated time:

Severity:

01 - Critical

Description

This can be done with this command:

ps -l | grep "X :0" | grep -v grep | tr -s " "| cut -f7 -d" "

This doesn't appear to fail under ash (Busybox shell) if the first grep doesn't find anything. We can use this to find the correct "vtsrc" for any app.

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Updated by Hammel over 4 years ago

Severity changed from 03 - Medium to 01 - Critical

This was a problem during release testing for 1.1 on B/B+ models so I'm moving it up in severity.

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Updated by Hammel over 4 years ago

Priority changed from High to Immediate

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Updated by Hammel over 4 years ago

Status changed from New to In Progress
% Done changed from 0 to 10

Programmatic option (maybe): https://www.helpnetsecurity.com/2002/04/08/console-ioctls-under-linux/
Example code: https://img2.helpnetsecurity.com/dl/articles/txt/console18.txt

Look for VT_GETSTATE.

Also see console_ioctl in man pages.

The library should get the VT the app was started on. Then it can have set_vt() and restore_vt() modes to move away from and back to the original VT.

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Updated by Hammel over 4 years ago

% Done changed from 10 to 20

I Have a branch with functions for supporting getting the VT for the current process (getVTNum) and any named process (getVT) in the RM-751 branch of libpibox.
The merge request for this is here: https://gitlab.com/pibox/libpibox/-/merge_requests/1

These functions need to be tested. There are unit tests already written. There is no app currently using this so I think adding it to videofe would be the best place to start (since it needs it most).

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Updated by Hammel over 4 years ago

% Done changed from 20 to 50

Unit tests are implemented and run successfully.

Now I need to test with videofe.

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Updated by Hammel over 4 years ago

% Done changed from 50 to 60

Initial test without full media system shows piboxGetVTNum() works as expected in videofe. It finds the vt that X is on. This was true even when I remotely logged in, set DISPLAY=unix:0.0 and ran videofe.

A more complete test is needed to make sure videofe switches vts correctly given the use of the new piboxGetVTNum() api.

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