On Wed, 05 Nov 2008, Chris Jones wrote: > Henrique de Moraes Holschuh wrote: > > Actually, it is very low risk, as long as the current LED control is already working fine on the X301. > > The LEDs on my X300 have been working exactly as I would expect. > > > I don't know if this will help you decide, but I can truthfully say that I would do all those tests in any X-series I owned without any fear > > My bravery is not all that great, but I did the first set: > > > echo 0x0c 0x0d >/proc/acpi/ibm/ecdump (should turn off thinkvantage led) > > Verified. > > > echo 0x0c 0x8d >/proc/acpi/ibm/ecdump (should turn on thinkvantage led) > > Verified, although it's not very bright. > > > echo 0x0c 0xcd >/proc/acpi/ibm/ecdump (should blink thinkvantage led) > > Verified, makes the "on" state much brighter, and the blink period is > quite slow. Ok. This suggests that the new bits are brightness control and we are leaving them at their lowest or something. You don't need to do the testing if it makes you unconfortable, but there is a easy and safe way to at least get a bit more evidence about it. When the BIOS turns the thinkvantage LED on, is it brighter than when you did echo 0x0c 0x8d >/proc/acpi/ibm/ecdump ? -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel
