I'm using a new Thinkpad T420 laptop with SandyBridge with OpenSUSE 11.4 and OpenSUSE ThumbleWeed with KDE. If the battery is empty and the system is in aggressive powersave mode, the screen becomes black if I plug in the power cable. Looks like the system is still working, but the screen is shut down. Even when changing to tty1 or when changing back to tty7/KDE, the screen remains black and unusable. With dmesg I saw this errors: [ 300.752879] [Hardware Error]: Machine check events logged [ 307.790734] thinkpad_acpi: unknown possible thermal alarm or keyboard event received [ 307.790760] thinkpad_acpi: unhandled HKEY event 0x6040 [ 307.790762] thinkpad_acpi: please report the conditions when this event happened to ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx [ 307.792318] thinkpad_acpi: EC reports that Thermal Table has changed => Major bug, because it's not possible to work on the laptop if agressive powersave mode has already been reached. The system has to be rebooted after the power cable has been attached. Data loss is possible! I also added this bug zu Novell's Bugzilla at: https://bugzilla.novell.com/show_bug.cgi?id=727628 I'm not on the list, please send questions and answers directly to my mailaddress. Peer -- Heinlein Professional Linux Support GmbH Linux: Akademie - Support - Hosting http://www.heinlein-support.de Tel: 030 / 40 50 51 - 0 Fax: 030 / 40 50 51 - 19 Zwangsangaben lt. §35a GmbHG: HRB 93818 B / Amtsgericht Berlin-Charlottenburg, Geschäftsführer: Peer Heinlein -- Sitz: Berlin ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-novd2d _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel