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Development Linux Ubuntu

Stuck in XScreenSaver

I have crouton with Ubuntu installed on my Chromebook and I left it idle for about 30 mins. When I got back it was on XScreenSaver and I cannot get out of it. I’ve tried turning off the computer but it doesn’t work.

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Development Linux Ubuntu

Squid as cache proxy

The only internet connection I have is through mobile data, although I have an unlimited use in the browsers for the cache, to optimize the bandwidth and not have to be downloading the css and js files again maybe because of the time of expiration that the sites have defined. I would like to install […]

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Development Linux Ubuntu

dpkg: error processing package (after apt-get upgrade)

I recently deleted my all python files from dpkg info to solve this but that did’nt worked, even damaged. Then after installing ubuntu-desktop, again facing with same issues. Errors were encountered while processing: python2.7 python-minimal apport E: Sub-process /usr/bin/dpkg returned an error code (1)

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Development Linux Ubuntu

how to fix graphical lags Ubuntu 19.10

since i have i have installed Ubuntu 19 on my laptop, i had some graphical lags: when i try to open all applications it is lagging, but my laptop can still handle my games in 60 fps, (on a 1680×1050 resolution). I have tried to search for drivers, but nothing was found. I already asked […]

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Development Linux Ubuntu

Extract a specific pdf from a zip file with lots of pdfs

Given: Name and Location of Zip-File. Example: collectionOfPdfFiles2017.zip Zip File is a collection of PDFs without folder structure Name of PDF File in Zip-File. Example: someFileFrom2017.pdf Wanted: Console way of extracting the named PDF from the given zip file The file should be unmodified. Basically the extracted file should be in the same condition as […]

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Development Linux Ubuntu

Dummy output in 19.10 with realtek ALC892

Hello I have a Dell venue 10 pro 5055 and I recently installed Ubuntu on it. 19.10 is absolutely beautiful and great with touchscreens. The only persisting problem is the audio. When I go into settings all I find is dummy output! I have already covered all my bases (i.e. reinstalling pulse audio) although if […]

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Development Linux Ubuntu

Xubuntu 19.10 – Black screen with mouse pointer

Xubuntu 19.10 on Dell Optiplex 755 – works perfectly. Only issue is when I leave the pc unattended for some time, I find that there is only a black screen with the mouse pointer visible. Otherwise there is nothing on the screen. I am able to ctrl-alt-f1 and login via terminal and reboot and everything […]

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Development Linux Ubuntu

No Camera Found, Ubuntu18.04, Dell 5548 Please help !! Interview?

Cheese No Camera Found Hangout no camera detected Terminal commands if necessary

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Development Linux Ubuntu

Problem while installing iwlwifi on Ubuntu 16.04

I’m a new one on Ubuntu and using UP BOARD with Ubuntu 16.04 installed on it. I install iwlwifi according this: https://github.com/HappyZ/iw_intel8260_localization/wiki/Enable-802.11mc-FTM-on-Intel-8260 While installing, after “sudo make -j4”, I got many “symbolmap: 00000001: invalid section”,just like this: ”’ symbolmap: 00000001: invalid section CC [M] /lib/firmware/backport-iwlwifi/net/mac80211/aes_gcm.o symbolmap: 00000001: invalid section CC [M] /lib/firmware/backport-iwlwifi/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info.o symbolmap: 00000001: invalid […]

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Development Linux Ubuntu

what does ‘-c’ or ‘-m’ mean in the command line?

I am a beginner of Linux, so this is maybe a silly question. But can someone tell me what does the ‘-c’ or ‘-m’ mean in the command line? for example ‘python3 -c ‘from ….’