
Lenovo ThinkPad W520
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ProcKernelCmdLine: BOOT_IMAGE= /boot/vmlinuz- 2.6.38- 8-generic root=UUID= df7a5cd8- 18b4-4b7a- 92c8-6cc8f3647c c9 ro quiet splash vt.handoff=7 dmi.modalias: dmi:bvnLENOVO: bvr8BET30WW( 1.06):bd03/ 02/2011: svnLENOVO: pn427638U: pvrThinkPadW520 :rvnLENOVO: rn427638U: rvrNotAvailable :cvnLENOVO: ct10:cvrNotAvai lable:
Bug #776999 in linux (Ubuntu): “[Lenovo W520] laptop freezes on ACPI-related actions”
Category:W520 - ThinkWiki
The W520 comes with a special 170W AC adapter (P/N 0A36227) that is currently not shipped with any other Thinkpad. Note that it is different from the W700 170W AC adapter (P/N 41R4421) . The W520 AC adapter is larger but lighter than the W510 135W AC adapter. Most newer (20V) Thinkpad AC adapters have a compatible plug with the W520, but not all of them will work due to power constraints. The following table shows which AC adapters can be used to run the W520:How to enable integrated fingerprint reader with BioAPI - ThinkWiki
Select ThinkPads feature a Pantone Huey PRO Colorimeter by X-Rite in the palm rest. This is used for calibrating the colours of the LCD display. The way calibration works is that you close the LID and the display remains on with a special test screen, and the sensor in the palm rest does its thing. This sensor works with argyllcms and dispcalGUI under openSUSE 11.3. However, the sensor is not recognized properly under Ubuntu 10.04 or Debian (Lenny and Etch).

