Course Introduction：The keyboard does not work in the virtual machine, mainly due to the incoming device not mapped, missing drivers or system settings errors. Solutions include: 1. Close the program that may occupy the keyboard and restart the virtual machine manager; 2. Check the keyboard enabled status in the virtual machine settings. VMware users need to ensure that the USB controller is connected, and VirtualBox users need to enable the USB controller and keyboard; 3. Try to reconnect the keyboard through "Device" → "USB Device" during runtime; 4. Install or update VMTools/GuestAdditions to provide necessary driver support; 5. The Linux system can manually load evdev or check whether the device file exists. Each step needs to be checked one by one, paying special attention to configuration and driver issues.
2025-07-14 comment 0 768
Course Introduction：CSS Media Queries and Device Orientation: Overcoming the Soft-Keyboard IssueIntroductionMedia queries in CSS provide a powerful mechanism for...
2024-10-26 comment 0 1128
Course Introduction：Keyboard not typing is usually caused by connections, drivers, system settings, or physical damage, and most can be solved by themselves. 1. Check the connection problem: The wireless keyboard confirms that it is powered and re-pairs, try to plug and unplug the 2.4G receiver, and replace the USB interface with the wired keyboard. 2. Troubleshoot driver and system problems: Check whether the keyboard is recognized in the device manager or system information, update or reinstall the driver, and try safe mode testing. 3. Clean the keyboard: Use an air blowing ball or soft brush to clean the dust. If the water is inlet, the electricity will be cut off and dried. The mechanical keyboard can be detached and the key caps can be cleaned in depth. 4. If the keys fail due to wear or spring fatigue, consider replacing the keys or keyboard. After following the steps to troubleshoot, it still cannot be solved. Replace the new keyboard.
2025-07-16 comment 0 693
Course Introduction：Fixing Fixed Navigation Elements in Mobile SafariEnsuring fixed navigation elements remain in place when the virtual keyboard opens in Mobile...
2024-10-28 comment 0 661
Course Introduction：The problem of accidentally popping up the keyboard can be solved by the following methods: 1. Check whether the device is misjudged and the keyboard is connected, try to re-plug and unplug the external keyboard or restart the device and uninstall the keyboard driver; 2. Turn off the touch screen keyboard automatic pop-up function in Windows settings; 3. Disable predicted text or related accessibility functions in Android devices, and check whether the application forces the keyboard to open; 4. Troubleshoot the impact of auto-focus fields and third-party extensions in web pages or applications. Checking one by one in order can effectively solve the abnormal pop-up problem in most cases.
2025-07-17 comment 0 607
Course Elementary 13779
Course Introduction：Scala Tutorial Scala is a multi-paradigm programming language, designed to integrate various features of object-oriented programming and functional programming.
Course Elementary 82295
Course Introduction："CSS Online Manual" is the official CSS online reference manual. This CSS online development manual contains various CSS properties, definitions, usage methods, example operations, etc. It is an indispensable online query manual for WEB programming learners and developers! CSS: Cascading Style Sheets (English full name: Cascading Style Sheets) is an application used to express HTML (Standard Universal Markup Language).
Course Elementary 13148
Course Introduction：SVG is a markup language for vector graphics in HTML5. It maintains powerful drawing capabilities and at the same time has a very high-end interface to operate graphics by directly operating Dom nodes. This "SVG Tutorial" is intended to allow students to master the SVG language and some of its corresponding APIs, combined with the knowledge of 2D drawing, so that students can render and control complex graphics on the page.
Course Elementary 24595
Course Introduction：In the "AngularJS Chinese Reference Manual", AngularJS extends HTML with new attributes and expressions. AngularJS can build a single page application (SPAs: Single Page Applications). AngularJS is very easy to learn.
Course Elementary 27455
Course Introduction：Go is a new language, a concurrent, garbage-collected, fast-compiled language. It can compile a large Go program in a few seconds on a single computer. Go provides a model for software construction that makes dependency analysis easier and avoids most C-style include files and library headers. Go is a statically typed language, and its type system has no hierarchy. Therefore users do not need to spend time defining relationships between types, which feels more lightweight than typical object-oriented languages. Go is a completely garbage-collected language and provides basic support for concurrent execution and communication. By its design, Go is intended to provide a method for constructing system software on multi-core machines.
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