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How Microsoft shattered Gnome's unity with Windows 95

Who needs prior art when you've got lawyers?

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There isn't even prior art for most of the distinctive features of Windows 95. RISC OS already had its Icon Bar, but that doesn't have an app launcher or a way to switch windows. NeXTStep had its Dock, but that doesn't have menus or a status icon. Neither did window-switching. Windows 95 might have been inspired by these – but it implemented them rather differently.

The RISC OS 3.7 desktop from the late 1990s (Credit: Guidebook Gallery)

The problem is that GNOME and KDE and so on didn't. Their versions are precise replicas of Windows 95.

The Linux community seemed unconcerned by Microsoft's patent claim, but what happened next is significant.

Novell, owners of primary KDE backers SUSE, signed a patent-sharing deal with Microsoft. Xandros, at that time a significant Linux vendor on the back of Asus' EEE, had already signed in 2006. Red Hat (still a primary sponsor of GNOME development) and Ubuntu (the leading desktop GNOME distributor) wouldn't sign.

In 2008, GNOME was labelled as "decadent" and a radically different Version 3 was announced. Ubuntu was initially involved, but when its proposals weren't adopted, the company went its own way and developed the Mac-OS-X-like Unity desktop.

In 2011, the two leading GNOME distributors both switched to new desktops. The similarities are conspicuous. Both have removed anything resembling a Start menu or taskbar, replacing some of this functionality with NeXT/Apple-like icon docks down the left hand screen edge, plus full-screen, search-driven app browsers. Both have rearranged window-title-bar buttons and Ubuntu has even banished in-window menu bars. Both have been wildly controversial and are widely disliked.

The same year, SUSE declared that KDE would once again be its default desktop.

Since then, GNOME has forked repeatedly.

The biggest of the Ubuntu remixes, Linux Mint, is carving out a new niche for itself, offering more "traditional" – meaning Windows-like – GNOME-based desktops. First came its own Cinnamon desktop, built upon GNOME 3 but with a taskbar-and-launch-menu shell. Mint is also the only mainstream distro to offer MATE, a fork of the GNOME 2 codebase.

MATE is the only one of these desktops to run happily with 2D graphics – GNOME 3, Unity and Cinnamon all require 3D compositing, rendered either in hardware or (more slowly) in software. GNOME 3 used to offer a non-composited 2D desktop called "Fallback Mode", which looked and worked much like GNOME 2, but was based on Gtk3 and much less customisable. However, GNOME 3.8 has now dropped this feature, resulting in Fallback Mode quickly being forked to create the Consort Desktop Environment.

In its place, the GNOME project has announced Classic Mode, part of the GNOME 3.8 update. This is based on the 3D-composited Shell but with extensions to provide a taskbar and an app menu – in other words, exactly what Mint has done with Cinnamon, but developed separately.

When the first Long Term Support version of Ubuntu was released, there was a single desktop used by every major Linux distribution. As Microsoft rattled its sabre over the following two years, Novell, Linspire and Xandros – all KDE-centric vendors – signed their patent deals with Microsoft.

What the Gnome 3.8 desktop normally looks like - showing some apps in this case. Click to enlarge (Credit: GNOME Project, used under licence)

Six years after Microsoft's threats, there are six different GNOME desktops: GNOME Shell, Unity, Cinnamon, MATE, Consort and now Classic Mode. As a result, developer effort is spread pretty thinly, and the users are revolting.

The phrase "divide and conquer" - of splitting your enemies up in order to reduce their combined threat - is attributed to many mighty rulers down history, but it comes to mind when looking back at the Linux desktop. And it's a strategy that suited Microsoft because it won without spending a cent in court.

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Hang on, though, aren't most of these GNOME spin-offs very Windows-like? Aren't they at risk?

No, not any more. Microsoft has taken no legal action since 2007 and thus under the legal principle of laches it has forfeited the right to sue. Indeed, with Windows 8, the company itself moved away from the classic Start Menu-based desktop to a touch-oriented one.

Doesn't matter, though – the job was done by the time GNOME Shell and Unity came out. Meantime, it's been good news for the Xfce and LXDE desktops, which are still picking up disgruntled GNOME 2 emigrés – meaning yet more fragmentation of the Linux community. ®

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