User:Wishi/Samsung RC530

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This is valid for many newer Samsung laptops. The system tested here is a Samsung RC 530. Since the models do not differ greatly in their overall design chances are good that the whole RC series is covered by the following steps.

* Optimus setup (bumblebee, bbswitch)
* CPU frequency sheduling (cputools)
* vendor specific kernel extensions (samsung_tools)

uname-a                                                                                                                       Linux 3.5.3-1-ARCH #1 SMP PREEMPT

Good news everyone!

 * 100% compatibility

Quirks:

 * do not use acpi_call (https://aur.archlinux.org/packages.php?ID=39470) since it breaks hibernation/suspend with pm-utils
 * ensure that you do not use Window Manager specific hotkeys like Fn + FX to adjust anything if you intend to keep the samsung_tools config for xbindkeys

{{bc| Hardware (lshw): - Nvidia/Intel Optimus

 *-display               
      description: VGA compatible controller
      product: 2nd Generation Core Processor Family Integrated Graphics Controller
      vendor: Intel Corporation
      physical id: 2
      bus info: pci@0000:00:02.0
      version: 09
      width: 64 bits
      clock: 33MHz
      capabilities: vga_controller bus_master cap_list rom
      configuration: driver=i915 latency=0
      resources: irq:43 memory:f6400000-f67fffff memory:d0000000-dfffffff ioport:e000(size=64)

- Intel i7: *-cpu product: Intel(R) Core(TM) i7-2630QM CPU @ 2.00GHz vendor: Intel Corp. physical id: 1 bus info: cpu@0 size: 800MHz capacity: 800MHz width: 64 bits capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp x86-64 constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer xsave avx lahf_lm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid cpufreq <nowki> - Intel Wireless

wireless=IEEE 802.11bgn
               resources: irq:45 memory:f7200000-f7201fff
       *-pci:2
            description: PCI bridge
            product: 6 Series/C200 Series Chipset Family PCI Express Root Port 4
            vendor: Intel Corporation
            physical id: 1c.3
            bus info: pci@0000:00:1c.3
            version: b4
            width: 32 bits
            clock: 33MHz
            capabilities: pci normal_decode bus_master cap_list
            configuration: driver=pcieport
            resources: irq:19 ioport:b000(size=4096) memory:f6800000-f71fffff ioport:f2100000(size=10485760)

</nowiki>

Samsung Tools - fan-control and power-management

The Samsung Tools are crucial to save power. On a Samsung RC 530 sample results are 4-5h work-time, using the standard battery as power suply (using laptop-mode, samsung_tools, low brightness, active WLAN and no Bluetooth).

Description

"It enables control in a friendly way of the devices found on Samsung laptops (bluetooth, wireless, webcam, backlight, CPU fan, special keys) and the control of various aspects related to power management, like the CPU undervolting (when a PHC-enabled kernel is available).

URL: https://launchpad.net/samsung-tools

It's a kernel extension, which can be installed via AUR: https://aur.archlinux.org/packages.php?ID=37713

Laptop Mode Tools

Another useful step is to install laptop-tools. Ensure that you carefully read the hdparm section.

URL: Laptop Mode Tools

Optimus

Use bbswitch and add it to your kernel modules sections:

URL: Bumblebee