Linux

Wacom tablet not connecting with Ubuntu Linux

1.0 Error Wacom tablet connected to a laptop Wacom One CTL-672/KO-CX tablet was not connecting with a laptop running Ubuntu Linux 18.04 LTS. It was working fine earlier, with the wacom driver obtained from the Linux Wacom Project. The Linux kernel on the laptop had been updated recently. The following error messages were observed. $ …

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Connecting Wacom One CTL-672/KO-CX tablet to Ubuntu Linux

Wacom One CTL-672/KO-CX is an 8.5 inch x 5.3 inch graphic tablet which can be connected to a computer via a USB port. The tablet comes with a pressure sensitive cordless pen. Once connected to a computer via a USB port, pen and tablet work like a mouse on a mouse pad, giving a very …

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MCE hardware error cpu 0

1.0 Error While running Ubuntu 18.04.1 on a laptop, the following errors were observed. mce: hardware error cpu 0 machine check 0 bank 6 ae0000000040110a mce: hardware error tsc 0 addr ffb07540 misc 238a0000086 mce: hardware error processor 0:40651 time 1540082330 socket 0 Apic 0 microcode 24 ipmi dmi invalid offset 0 The system would …

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systemd – System and service manager in Linux

1.0 Introduction systemd is the newer init system used in most Linux distributions since 2015. The first widely used init system was the System V init process, sysvinit. Ubuntu introduced the Upstart init system with Ubuntu 6.10 in 2006. Ubuntu fully migrated to systemd with Ubuntu 15.04 in 2015. Indeed, we can see that /sbin/init …

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Syslog

1.0 Syslog Syslog is a protocol for conveying event notification messages. Syslog was first developed by Eric Allman for logging as a part of the Sendmail project in the 1980s. It soon became a de-facto standard for logging on Unix-like systems. Syslog was formally specified in RFC 3164 in 2001 as “The BSD syslog Protocol” …

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Dovecot: imap Error: open (/var/mail/username) failed

While configuring mail on a Ubuntu Linux server running the Postfix mail server and Dovecot IMAP server, the following errors were observed in the mail log files, dovecot: imap(user1): Error: open(/var/mail/user1) failed: Permission denied (euid=1002(user1) egid=1002(user1) missing +w perm: /var/mail, we’re not in group 8(mail), dir owned by 0:8 mode=0775) dovecot: imap(user1): Error: Failed to …

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Not able to access files on Android device in Nautilus from Linux desktop

1.0 Error After connecting an Android based phone with a Linux desktop using the USB cable, the files on the device are not shown by the Nautilus file manager. After clicking the tab for the device, an empty screen is displayed. Empty screen displayed after opening the device tab in Nautilus. 2.0 Solution When we …

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