LinuxQuestions.org - neonsignal

upgrade to bookworm

Posted 04-19-2023 at 11:12 PM by neonsignal
Updated 04-19-2023 at 11:14 PM by neonsignal

have upgraded to Debian bookworm (technically still unreleased, but is now in hard freeze)

mostly a painless upgrade, but had a few problems

when starting fluxbox without a display manager, it was failing
firefox was very slow to start, and thunderbird was unable to save files
sound applications were hanging

I did not diagnose the fluxbox startup, but capitulated and installed a display manager instead. Notably it started a different window manager by default,...

neonsignal

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Pepper Flash plugin for Chromium browser

Posted 06-16-2013 at 07:01 PM by neonsignal
Updated 06-16-2013 at 07:46 PM by neonsignal

A few sites require the the newer version of Adobe Flash with the Pepper API.

This is included in the closed Chrome browser package, but it can also be used with the open source Chromium browser from which Chrome is derived. The Pepper API is not supported by Firefox.

There are packages available for some distros, but it can also be installed manually.

First download the current Chrome package to suit your architecture, eg:

Code:

wget https://dl.google.com/linux/direct/google-chrome-stable-current_

...

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user space access to parallel port

Posted 06-17-2012 at 09:53 PM by neonsignal

When using a parallel port for a printer, typically it will be accessed through a kernel printer driver.

However, the parallel port can also be used as a multi-purpose bit port from user space. This can be done by loading the ppdev driver:

Code:

modprobe ppdev

In the past, you would also have to create the access node, but this is now scripted and will happen automatically:

Code:

mknod /dev/parport0 c 99 0 -m 660

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user mounted filesystems

Posted 06-14-2012 at 10:51 PM by neonsignal

Rather than mount a filesystem as root (whether from the command line or through /etc/fstab), non-privileged users can make use of the fuse (filesystem in userspace) system. This requires the installation of the fuse-utils package, and the user has to be added to the fuse group.

There are a number of useful systems implemented on top of fuse.

For example, an ISO system might be required to run a particular application, and just mounted temporarily by the user executing...

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shutdown instead of reboot from ctrl-alt-del

Posted 06-14-2012 at 03:30 AM by neonsignal

Typically the ctrl-alt-del in Debian will cause the system to reboot (or the GUI may bring up a dialog).

If the preference is to have this shut down the system instead, the relevant line in /etc/inittab is changed from:

Code:

ca:12345:ctrlaltdel:/sbin/shutdown -t1 -a -r now

to:

Code:

ca:12345:ctrlaltdel:/sbin/shutdown -t1 -a -h now

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