System Controller Hub (SCH) is a family of

Intel Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California. It is the world's largest semiconductor chip manufacturer by revenue, and is one of the developers of the x86 seri ...

microchip An integrated circuit or monolithic integrated circuit (also referred to as an IC, a chip, or a microchip) is a set of electronic circuits on one small flat piece (or "chip") of semiconductor material, usually silicon. Large numbers of tiny ...

s employed in

chipset In a computer system, a chipset is a set of electronic components An electronic component is any basic discrete device or physical entity in an electronic system used to affect electrons or their associated fields. Electronic components are ...

s for low-power

Atom Every atom is composed of a nucleus and one or more electrons bound to the nucleus. The nucleus is made of one or more protons and a number of neutrons. Only the most common variety of hydrogen has no neutrons. Every solid, liquid, gas, and ...

-based platforms. Its architecture is consistent with the

Intel Hub Architecture Intel Hub Architecture (IHA), also known as Accelerated Hub Architecture (AHA) was Intel's architecture for the 8xx family of chipsets, starting in 1999 with the Intel 810. It uses a memory controller hub (MCH) that is connected to an I/O controll ...

but combines the traditional northbridge and southbridge functions into a single

Poulsbo

Poulsbo is the codename of the first SCH and plays a key role in

's second-generation Menlow

UMPC An ultra-mobile PC, or ultra-mobile personal computer (UMPC), is a miniature version of a pen computer, a class of laptop whose specifications were launched by Microsoft and Intel in spring 2006. Sony had already made a first attempt in this ...

and MID platform chipset for

Silverthorne microprocessors. The graphics core is called

GMA 500 The Intel Graphics Media Accelerator (GMA) is a series of integrated graphics processors introduced in 2004 by Intel, replacing the earlier Intel Extreme Graphics series and being succeeded by the Intel HD and Iris Graphics series. This series ...

and unlike most graphics cores used by Intel was developed by

Imagination Technologies Imagination Technologies Limited is a British semiconductor and software design company owned by Canyon Bridge Capital Partners, a private equity fund based in Beijing that is ultimately owned by the Chinese government. With its global headquar ...

. Intel licensed the

PowerVR SGX PowerVR is a division of Imagination Technologies (formerly VideoLogic) that develops hardware and software for 2D and 3D rendering, and for video encoding, decoding, associated image processing and DirectX, OpenGL ES, OpenVG, and OpenCL accel ...

535 as a graphics core and the PowerVR VXD370 for H.264/MPEG-4 AVC playback. The video core is able to process

720p 720p (1280×720 px; also called HD ready, standard HD or just HD) is a progressive HDTV signal format with 720 horizontal lines/1280 columns and an aspect ratio (AR) of 16:9, normally known as widescreen HDTV (1.78:1). All major HDTV broadcast ...

as well as

1080i 1080i (also known as Full HD or BT.709) is a combination of frame resolution and scan type. 1080i is used in high-definition television (HDTV) and high-definition video. The number "1080" refers to the number of horizontal lines on the screen. ...

resolutions. This has the following variations:
SCH UL11L

SCH US15L

SCH US15W

SCH US15WP

SCH US15WPT

SCH US15X

GMA 500 Linux support

Although several

netbooks Netbook was a commonly used term that identified a product class of small and inexpensive laptops which were sold from 2007 to around 2013. These machines were designed primarily as cost-effective tools for consumers to access the Inte ...

using the Poulsbo chipset are shipped with some distribution of

Linux Linux ( or ) is a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically packaged as a Linux distribution, which ...

(notably the Sony Vaio P and

Dell Inspiron Mini 12 The Dell Inspiron Mini Series is a line of subnotebook/netbook computers designed by Dell. The series was introduced in September 2008 amidst the growing popularity of low-cost netbook computers introduced by competitors. 9 Series The Dell In ...

, among others), Poulsbo's graphics core GMA 500 is currently not well supported by Intel for Linux. A proprietary driver was shipped with Dell's adaptation of

Ubuntu Ubuntu ( ) is a Linux distribution based on Debian and composed mostly of free and open-source software. Ubuntu is officially released in three editions: '' Desktop'', ''Server'', and ''Core'' for Internet of things devices and robots. All ...

8.04.1 Netbook Remix, which provides 2D hardware acceleration (although users reported serious stability issues) under Linux kernel 2.6.24. A work-in-progress free driver is currently available, however the proprietary driver does not work with current Linux kernels and current versions of X. Work is under way to provide at least 2D support in current Linux kernels, although this will still rely on proprietary binary code for the 3D part of the driver. The current status of this driver runs on Fedora 10 and allows for 2D. 3D acceleration, however, is still broken. A working, proprietary driver package is available for Fedora 11. Starting with Mandriva 2010 Release Candidate 2, Poulsbo drivers are now fully supported out of the box when you use One isos. Hardware will be automatically detected and configured using XFdrake. As it needs non-free firmware, this could not be included in Free isos. A rudimentary (no 3D acceleration) driver was added to Linux 2.6.39.

Whitmore Lake

Whitmore Lake is the codename of another SCH. This has the following variations:
3100 SCH

References

{{Intel processors, * Intel products Intel chipsets

Poulsbo

GMA 500 Linux support

Whitmore Lake

See also

References