So what works and what doesn't with the Intel P55 and Lynnfield processors when it comes to Linux? Well, we have just had the hardware for about a week, but so far the experience is relatively pleasant after first sorting out a few issues. When it comes to the Intel P55 motherboard we tested, the Intel DP55KG, the motherboard had worked with Ubuntu 9.04 and its Linux 2.6.28 kernel except for the Gigabit Ethernet adapter was not detected. When upgrading to Ubuntu 9.10 Alpha 5 with the Linux 2.6.31 kernel, the network adapter was now supported. One area also lacking in the Linux support for the Intel Lynnfield / Ibex Peak with both the motherboard and the CPU is the lack of any LM_Sensors system monitoring support for being able to read the fan speeds, temperatures, and voltages. Nothing was detected by LM_Sensors found in the latest Ubuntu 9.10 code. Besides those two caveats, the Intel P55 motherboard had ran fine on Linux.