744 reputation
819
bio website neal.mcburnett.org
location Boulder, CO
age
visits member for 3 years, 8 months
seen yesterday

I like to engage in "Technology Serving Community" via free software.

Consultant, Ubuntu member, Wikipedia contributor since 2002, ElectionAudits developer, Boulder Community Network co-founder, Internet2 consultant for IDtrust, author of pgpstat, Android enthusiast, ex-Bell Labs web/security/standards maven....

See my web site for way more: http://neal.mcburnett.org/


Jun
19
comment Find duplicate files and folders and move these to a different folder
I agree with @AndersonGreen that the question of finding duplicate folders / directories needs an answer. See one option at Find all folders in a directory with the same content - Unix & Linux Stack Exchange
Jun
18
comment How to control UPS via nut rather than gnome-power-manager?
@AShelly What release are you running? What are your symptoms?
Jun
6
comment How to use Rhythmbox python console
Note that at least as of Ubuntu Trusty tahr 14.04, rhythmbox embeds python 3.4.0. So the command 'print "hello world"' is a syntax error ;) Instead, use the new Python 3 print function: 'print("hello world")'
Jun
1
comment Installing Java 7 Update 25 on 12.04 LTS?
PPAs can indeed be dangerous. But they can also be smart and more secure than a direct download, in the sense that they automate the process of upgrading. If the people running the ppa are trustworthy, and they sign their packages etc, then they are a good alternative to having people check the checksums of the tar.gz themselves, do the intstalls, and then constantly watch for notice of the need for a security update, and do it all over again. Note also that the ppa package does a number of other "update-alternatives" calls, for various installed programs that use java.
Apr
30
comment Can a Raspberry Pi run Ubuntu?
See the answer below by @0xF2 for helpful details (which would be worth adding to this answer....)
Apr
28
comment Can I control brightness on second monitor?
This is not in the normal repos, but is in the software center at least for 12.04. It does not change the backlight brighness, but does change the overall brightness, though I'm not sure how. It says it uses a proprietary license, but also says it is "gpl-3". Very odd. And I'd like a command-line interface that I can script to gradually lower brightness in the evening. But I'm still glad to have it - thanks!
Mar
5
comment What are the differences between 32-bit and 64-bit, and which should I choose?
@Sergey But I'm pointing out that even with 8 GB, I typically have some swap due to tons of browser tabs. And in both cases in your charts with Firefox, there is swapping (in 1 GB), so I can't learn much there. If I could get, say, 50 of my typical browser tabs without swapping using 32-bit, while I'd start to swap at 40 browser tabs with 64-bit (I'm making the numbers up of course), then 32-bit starts looking nice. But I don't know if the 30% vs 10% rule applies to javascript/web pages/threads in modern browsers.
Mar
4
comment What are the differences between 32-bit and 64-bit, and which should I choose?
I'm curious how modern browsers with lots of open tabs and javascript fare here. I often run into swap (even with 8 GB RAM) by opening up lots of tabs, and modern web sites use lots of javascript libraries etc. How do the memory and cpu speed compare for heavy chrome or firefox usage?
Dec
28
comment Ubuntu cgroup architecture: cgroup-lite vs cgroup-bin and default config for lxc, libvirt-bin?
I've seen some bugs that may be related, such as lxc-start: failed to spawn
Dec
28
comment lxc-start: failed to spawn
@NeilenMarais lxc doesn't depend on cgroup-lite, but recommends it (or cgroup-bin). That could be the problem.
Dec
28
comment Is it recommended to create a cgroup per process?
It would help to describe what kind of monitoring data you want to get, and alternative options you've considered, and why you'd avoid both systemd and upstart, and how you start your daemons in that case.
Dec
27
comment Why most people recommend to reduce swappiness to 10-20?
Those sites you list don't explain why they're recommending changing the default. The answers here are much better, for this tricky choice about a complicated issue.
Nov
21
comment Tool for automating video splicing at slide transitions?
I don't want to manually figure out where the transitions are. Can kdenlive analyze the video and automatically suggest timestamps which might be good transitions? They're pretty clear transitions (e.g. a video of a slide show, the only big changes being between one slide and the next, though some of the time someone is writing on the slides you see the writing, but not the person)
Oct
25
comment Video editing software options?
Much easier interface than Openshot: visible audio waveform, video thumbnails on the timeline, good keyboard shortcuts, copy-paste from timestamp, which is more precise, not a cpu hog.
Oct
23
comment How do I detect and remove Python packages installed via pip?
@oli pip freeze, in precise at least, also lists packages installed by apt, as other answers here describe.
Oct
23
comment Is there a command-line program to read tags from .m4a files?
Thanks! Is there an Ubuntu or Debian package, or something that pip or easy_install can handle?
Oct
16
comment What to use to quickly cut Audio/Video
Thanks! avconv is blazingly fast and clear and convenient for splitting out clips if you know what start/stop times you want. No need to figure out which OpenShot video format your source file corresponds to, which I still don't know for sure....
Oct
14
comment What to use to quickly cut Audio/Video
Thanks! But these ppa versions are out-of-date. Are the versions in Precise 12.04 good? Or can someone suggest better ones?
Oct
5
comment How to track Firefox beta via a PPA, but not Thunderbird daily builds etc?
Re "What's the best way to install just one package from a PPA that has many packages?", see apt - How do I cherry pick packages from a PPA? - Ask Ubuntu
Aug
22
comment How to find out which backported packages are available, and avoid losing packages when manually upgrading?
Thanks for your patience. OK, I agree that given the unambiguous meaning of the commands given, that's what apt has to do. So I guess I'm looking for a different command that would "do the right thing" for this sort of common case and make it easier to upgrade, e.g., all the binary packages that come from a given backported source package and are currently installed or are new and required. Perhaps it could just look for anything it is removing and see if that exists in the repository specified by -t. I'm basically trying to get closer to the ease of upgrades when backports aren't pinned low.