Categories
Linux Mastering Development

Why the USB serial port or openocd won’t open without root permission?

minicom or openocd command won’t run without root permission on a Ubuntu 16.04 system. In the past, I was able to open serial port without root permission. I verified that the current user exist in dialout and plugdev groups. Also, I don’t know if it matters but since this looks like a USB issue, I […]

Categories
Linux Mastering Development

Why the USB serial port or openocd won’t open without root permission?

minicom or openocd command won’t run without root permission on a Ubuntu 16.04 system. In the past, I was able to open serial port without root permission. I verified that the current user exist in dialout and plugdev groups. Also, I don’t know if it matters but since this looks like a USB issue, I […]

Categories
Linux Mastering Development Ubuntu

Why can’t I open USB serial port or connect openocd without root permission?

minicom or openocd command won’t run without root permission on a Ubuntu 16.04 system. The issue was noticed yesterday, until then I didn’t have to use root permission. Recent changes to system: 3-4 days ago my display would blackout after few seconds. While debugging the issue I installed/reinstalled a few drivers like lightdm, libpam-kwallet5, libpam-kwallet4, […]