If the image resolution on the screen does not match the display resolution, you can change the resolution using the command line.

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After the transition from 19.2 "tina" на 19.3 "Tracia", in the Linux window, an exclamation mark appeared. What is it connected with?

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ОднOnce I had to give an employee a USB flash drive on which both programs and personal photos were stored. I deleted the photos, but they remained in the sectors and their employee could restore them if he wanted. Therefore, we need a way to clean up free disk space. I found a command on how to do this - it works with NTFS, FAT and EXT3 file systems. The command line program is called SFill.

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The user brought a disk with files covered with bad sectors. An attempt to copy information was interrupted with a read error. Victoria's remap operation resulted in numerous reports of the UNCR sector being unable to recover. As a result, I came to the HDDSuperClone program for Linux, in which I copy information from disk or disk that can be saved.

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A specially developed version of Linux will replace Windows 7 in the Chinese public sector. CNews article.

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Most smartphones in video cameras record a video with a constant frame rate - 30 or 60 frames per second.
However, in the GCam application when shooting at night, you can set the frame rate automatically - it drops to 14 and below when there is not enough light, but the image in the frame becomes brighter. Recording with a variable frame rate (VFR) must be re-encoded with a constant frame rate (CFR) of 30 fps.

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Various public services portals accept files in electronic form of a strictly limited size. The usual requirement is a file size less than 5 MB. But many PDF files have a larger size due to the fact that the PDF format has recently been used for storing scanned documents. This message shows two ways to reduce the size of PDF files.

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The FT8 digital mode has gained incredible popularity and recognition around the world. Radio amateurs want to use it not only for long-distance DX QSOs on short waves, but also in competitions, including on ultra-short waves 144 and 432 MHz. The WSJT-X program provides an operating mode for European competitions using FT8 modulation.

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When the RAM runs out, the computer becomes very slow as it accesses the swap file on the hard drive. To solve this problem, the zswap module was invented. By default, it is disabled in the Linux operating system, but you can enable it.

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For diagnostic purposes, I have boot-time messages enabled in /etc/default/grub (line GRUB_CMDLINE_LINUX=""
).
When starting a computer running Linux Mint 19.2, errors like FAILED Failed to start AppArmor are visible. The problem started after reinstalling the MySQL service to manage relational databases. The solution to the "Failed to start AppArmor" problem is given below...

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