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Usplash
Usplash is a software project in the Ubuntu community. Historically, scrolling text "verbose mode" has typically appeared on Linux computers during boot. Usplash replaces the scrolling-text screens with a graphical splash screen. It was designed to replace Bootsplash, which did the same thing on the kernel space level. Since usplash operates in user space, it can be updated without recompiling the kernel. Usplash uses the Linux framebuffer interface or, alternatively, direct VESA access to display the splash screen. In Ubuntu 9.10 "Karmic Koala", Usplash is only used in the preliminary stages of booting, after which XSplash takes over. In Ubuntu 10.04 LTS "Lucid Lynx", Usplash has been fully replaced by Plymouth, which uses Direct Rendering Manager (DRM) and KMS driver. See also * Plymouth Plymouth ( ) is a port city status in the United Kingdom, city and unitary authority in Devon, South West England. It is located on Devon's south coast between the rivers River ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bootsplash
A bootsplash, also known as a bootscreen, is a graphical representation of the boot process of the operating system. A bootsplash can be a simple visualization of the scrolling boot messages in the console, but it can also present graphics or some combinations of both. Unlike splash screens, a bootsplash is not necessarily designed for marketing purposes; it can be intended to enhance the experience of the user as eye candy, or provide the user with messages (with an added advantage of color-coding facility) to diagnose the state of the system. Microsoft Windows All versions of Microsoft Windows feature a boot screen, which is loaded during the startup process. With extra, third-party utilities, it is possible to replace the default Windows boot screen with custom images, text, and/or animations. Windows Vista In Windows Vista, the default boot screen is represented by a green indeterminate progress indicator. The boot screen can be changed so that it displays a static i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Debian
Debian () is a free and open-source software, free and open source Linux distribution, developed by the Debian Project, which was established by Ian Murdock in August 1993. Debian is one of the oldest operating systems based on the Linux kernel, and is the basis of List of Linux distributions#Debian-based, many other Linux distributions. As of September 2023, Debian is the second-oldest Linux distribution still in active development: only Slackware is older. The project is coordinated over the Internet by a team of volunteers guided by the List of Debian project leaders, Debian Project Leader and three foundational documents: the Debian Social Contract, the Debian Constitution, and the Debian Free Software Guidelines. In general, Debian has been developed openly and distributed freely according to some of the principles of the GNU Project and Free Software. Because of this, the Free Software Foundation sponsored the project from November 1994 to November 1995. However, Debian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Video Electronics Standards Association
VESA (), formally known as Video Electronics Standards Association, is an American technical standards organization for computer display standards. The organization was incorporated in California in July 1989To retrieve the information, search for Entity Number C1645094. and has its office in San Jose. It claims a membership of over 300 companies. In November 1988, NEC Home Electronics announced its creation of the association to develop and promote a Super VGA computer display standard as a successor to IBM's proprietary Video Graphics Array (VGA) display standard. Super VGA enabled graphics display resolutions up to 800×600 pixels, compared to VGA's maximum resolution of 640×480 pixels—a 56% increase. The organization has since issued several additional standards related to computer video displays. Widely used VESA standards include DisplayHDR, DisplayPort, and Flat Display Mounting Interface. Standards * Feature connector (VFC), obsolete connector that wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Booting
In computing, booting is the process of starting a computer as initiated via Computer hardware, hardware such as a physical button on the computer or by a software command. After it is switched on, a computer's central processing unit (CPU) has no software in its main memory, so some process must load software into memory before it can be executed. This may be done by hardware or firmware in the CPU, or by a separate processor in the computer system. On some systems a power-on reset (POR) does not initiate booting and the operator must initiate booting after POR completes. IBM uses the term Initial Program Load (IPL) on someE.g., System/360 through IBM Z, RS/6000 and System/38 through IBM Power Systems product lines. Restarting a computer also is called Reboot (computing), ''rebooting'', which can be "hard", e.g. after electrical power to the CPU is switched from off to on, or "soft", where the power is not cut. On some systems, a soft boot may optionally clear RAM to zero. Bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
KMS Driver
The Direct Rendering Manager (DRM) is a subsystem of the Linux kernel responsible for interfacing with GPUs of modern video cards. DRM exposes an API that user-space programs can use to send commands and data to the GPU and perform operations such as configuring the mode setting of the display. DRM was first developed as the kernel-space component of the X Server Direct Rendering Infrastructure, but since then it has been used by other graphic stack alternatives such as Wayland and standalone applications and libraries such as SDL2 and Kodi. User-space programs can use the DRM API to command the GPU to do hardware-accelerated 3D rendering and video decoding, as well as GPGPU computing. Overview The Linux kernel already had an API called fbdev, used to manage the framebuffer of a graphics adapter, but it couldn't be used to handle the needs of modern 3D-accelerated GPU-based video hardware. These devices usually require setting and managing a command queue in thei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Direct Rendering Manager
The Direct Rendering Manager (DRM) is a subsystem of the Linux kernel responsible for interfacing with Graphics processing unit, GPUs of modern video cards. DRM exposes an Application programming interface, API that user-space programs can use to send commands and data to the GPU and perform operations such as configuring the mode setting of the display. DRM was first developed as the kernel-space component of the X.Org Server, X Server Direct Rendering Infrastructure, but since then it has been used by other graphic stack alternatives such as Wayland (display server protocol), Wayland and standalone applications and libraries such as Simple DirectMedia Layer , SDL2 and Kodi (software) , Kodi. User-space programs can use the DRM API to command the GPU to do hardware acceleration, hardware-accelerated 3D rendering and video decoding, as well as General-purpose computing on graphics processing units, GPGPU computing. Overview The Linux kernel already had an Application program ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plymouth (software)
Plymouth is an application which provides a graphical boot experience for Linux. Plymouth supports animations using Direct Rendering Manager (DRM) and the KMS driver. Plymouth is bundled with an initial ramdisk which allows it to run before the file system is mounted. Some sources claim that Plymouth is named after Plymouth Rock, symbolizing the program's role as the first thing a user sees, but this has not been confirmed in any official capacity. History The development of Plymouth began in May 2007 at Red Hat as a replacement for Red Hat Graphical Boot (RHGB). Fedora became the first distribution to ship Plymouth as default in Fedora 10, replacing RHGB. Ubuntu has included it in since Ubuntu 10.04 LTS "Lucid Lynx". Plymouth can now be found in much of the desktop Linux space. Some notable examples include: Ubuntu, Fedora, Debian, Linux Mint, MX Linux, and Manjaro Linux. Design Plymouth is made up of two components: * plymouthd, the daemon (or server) component is resp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
User Space
A modern computer operating system usually uses virtual memory to provide separate address spaces or regions of a single address space, called user space and kernel space. This separation primarily provides memory protection and hardware protection from malicious or errant software behaviour. Kernel space is strictly reserved for running a privileged operating system kernel, kernel extensions, and most device drivers. In contrast, user space is the memory area where application software and some drivers execute, typically with one address space per process. Overview The term user space (or userland) refers to all code that runs outside the operating system's kernel. User space usually refers to the various programs and libraries that the operating system uses to interact with the kernel: software that performs input/output, manipulates file system objects, application software, etc. Each user space process usually runs in its own virtual memory space, and, unless explici ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linux Framebuffer
The framebuffer subsystem in the Linux kernel fbdev is used to show graphics on a computer monitor, typically on the system console. It was designed as a hardware-independent API to give user space software access to the framebuffer (the part of a computer's video memory containing a current video frame) using only the Linux kernel's own basic facilities and its device file system interface, avoiding the need for libraries like SVGAlib which effectively implemented video drivers in user space. In most applications, fbdev has been superseded by the Linux Direct Rendering Manager (DRM) subsystem, but as of 2022, several drivers provide both DRM and fbdev APIs for backwards compatibility with software that has not been updated to use the DRM system, and there are still fbdev drivers for older (mostly embedded) hardware that does not have a DRM driver. Applications There are three applications of the Linux framebuffer: * An implementation of text Linux console that doesn't ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canonical Ltd
Canonical Ltd. is a privately-held computer software company based in London, England. It was founded and funded by South African entrepreneur Mark Shuttleworth to market commercial support and related services for Ubuntu and related projects. Canonical employs staff in more than 70 countries and maintains offices in London, Austin, Boston, Shanghai, Beijing, Taipei, Tokyo and the Isle of Man. Projects Canonical Ltd. has created and continues to back several projects. Principally these are free and open-source software ( FOSS) or tools designed to improve collaboration between free software developers and contributors. Some projects require a Contributor License Agreement to be signed. Open-source software * Ubuntu, a Debian-based Linux distribution with GNOME (formerly with Unity) desktop ** Ubuntu Core, a tiny and transactional version of Ubuntu * GNU Bazaar, a decentralized revision control system * Storm, an object-relational mapper for Python, part of the Launchpad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
User Space
A modern computer operating system usually uses virtual memory to provide separate address spaces or regions of a single address space, called user space and kernel space. This separation primarily provides memory protection and hardware protection from malicious or errant software behaviour. Kernel space is strictly reserved for running a privileged operating system kernel, kernel extensions, and most device drivers. In contrast, user space is the memory area where application software and some drivers execute, typically with one address space per process. Overview The term user space (or userland) refers to all code that runs outside the operating system's kernel. User space usually refers to the various programs and libraries that the operating system uses to interact with the kernel: software that performs input/output, manipulates file system objects, application software, etc. Each user space process usually runs in its own virtual memory space, and, unless explici ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
