Ceci est une ancienne révision du document !
Q I have a double-width, half-length, video card with two DVI connectors and two HDMI connectors. It has a fan and an 8-pin power connector. The silkscreening assures me that it was made by Nvidia, but does not disclose a model number. According to lspci and lshw, it's an NVIDIA GeForce GTX 760. How can I learn more?
A (Thanks to efflandt in the Ubuntu Forums) Once you install an Nvidia driver package (which you can do from Additional Drivers), there is the nvidia-smi command which can tell much more about the card, especially with -q.
Q I get errors from this command: sudo apt-get update && apt-get upgrade && apt-get install
A (Thanks to lisati in the Ubuntu Forums) You might wish to try this:
sudo apt-get update && sudo apt-get upgrade && sudo apt-get install
Q I can't connect to my main wifi router from my laptop. My network card stopped seeing it. This is the network card: Broadcom Corporation BCM43225 802.11b/g/n (rev 01)
A (Thanks to jeremy31 in the Ubuntu Forums) You may have issues with the internal Broadcom card if the access point is on a channel higher than 11 in 2.4GHz.
Q I have some media on a mounted drive (mounted to /mnt/hdd1 in fstab) that I can double-click to open/play with video player, but when I open with “other application” and select VLC, it will not play. If I open up VLC and try to browse, it sees only the home directory so I'm guessing it's a permission issue.
A (Thanks to mc4man in the Ubuntu Forums) You are probably using the snap version of VLC, which is confined to your home folder. So remove it with:
sudo snap remove vlc
Then install the deb package version.
Q Firefox 52 disables Java support. However, I can't use some important web sites without it. How can I enable it?
A (Thanks to Joey Sneddon at OMGUbuntu) There is a way to enable Java, Silverlight, etc, “NPAPI” plugins in Firefox 52 using an about:config setting. Add new Boolean string “plugin.load_flash_only” and set it to false. Then restart the browser.
Q I'm trying to work out how to turn a Ruby on Rails app into a .deb package.
A (Thanks to the OP, sbutton in the Ubuntu Forums) I can see that using “dpkg-deb –build” is the way to go for this.
Top questions at Askubuntu
* Why is some software not in the official Ubuntu repositories? https://goo.gl/5lbOuq
* What is the difference between using “touch file” and “> file” in creating a new file? https://goo.gl/Uy2Svd
* How do I disable the touchpad while typing? https://goo.gl/z3d8lL
* Is it safe to have no /home partition? https://goo.gl/LC2rNJ
* Is it possible to run Ubuntu Server 16.04 alongside Windows 10 Pro? https://goo.gl/9TbIIn
* Can I make Unity Hot Corners run custom commands? https://goo.gl/rZdxNE
* Why isn't Chromium up-to-date in all the Ubuntu LTS repos, like Firefox is? https://goo.gl/7LFfn9
* Is there a command to display a Calendar in the terminal? https://goo.gl/W684tB
* Anti Censorship software? https://goo.gl/zrTGYd
Tips and Techniques
IoT: problem or solution?
One of the hottest technologies recently has been “the Internet of Things“ (IoT), adding intelligence to (mostly) mundane appliances.
Sadly, many implementations have been flawed. They are based on Android as of a certain date, and have no facility for applying updates to close security holes which are discovered later. Hackers exploit these flaws, and take over the device to send you spam email or mount denial-of-service attacks on whichever website has annoyed them lately.
When all the smart lightbulbs concentrate on sending garbage traffic to your bank's website, you will probably be denied from doing online banking.
Relief may be in sight. Canonical has developed Ubuntu Core, which is designed to be the OS for IoT devices – and it allows for updating. Now the question is, how successful will they be in marketing Ubuntu Core? We can only wish them well.