Language Selection

English French German Italian Portuguese Spanish

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.

Read more

More in Tux Machines

Kubuntu 15.04 Beta 2 Released with KDE Plasma 5 as Default Desktop - Screenshot Tour

Today’s announcement for Ubuntu 15.04 (Vivid Vervet) Final Beta also mentioned the immediate availability for download and testing of Kubuntu 15.04 Beta 2, an official Ubuntu flavor built around the modern and attractive KDE Plasma 5 desktop environment, as well as the KDE Applications project. Read more

today's leftovers

New GNOME 3.16 Getting a Lot of Attention for Improvements

Red Hat garnered much of the press today with the release of their fourth quarter 2015 earnings report last night. Red Hat stock prices rose today after the announcement on this a down day on Wall Street and continued to gain a bit in after hours trading. The other big winner today was GNOME 3.16, whose headlines began yesterday with its release announcement. Just what is causing all the buzz? Read more

today's howtos