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Testing For The Latest Linux Kernel Power Regression

Filed under
Graphics/Benchmarks

Frame-buffer compression (FBC) support was disabled by default in the Linux 3.15 stable series for Haswell hardware and newer since the support wasn't mature and there were Intel HD Graphics users reporting issues with this feature being turned on, so it was disabled by default and hidden behind a kernel module parameter. After an Arch Linux user experienced a 4+ Watt increase in power draw for his Apple laptop, he bisected it to this FBC feature, but Intel Linux developers weren't expecting FBC to make such a huge difference in power draw. The matter is still being investigated but FBC simply can't be flipped back on by default since the code is incomplete and there's still some unmerged patches under review that won't make it until at least the Linux 3.18 kernel.

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Ardour 4.0 released

The Ardour project is pleased to announce the release of Ardour 4.0. This release brings many technical improvements, as well as new features and over a thousand bug fixes. The biggest changes in this release: Better cross platform support. Ardour now runs on GNU/Linux, OS X and for the first time, Windows. JACK is no longer required, making it easier than ever for new users to get Ardour up and running (though JACK is still usable with Ardour). The user interface has seen a thorough overhaul, leading to a more modern and polished experience. Read more

Android Leftovers

today's howtos

Leftovers: Software