On Tue, Apr 21, 2015, at 16:04, Andrew Wienecke wrote:
This was working previously, was working during the netboot install, is no longer working. Fixes online didn't. I'm going to try a few more things, but this is about all the useful stuff I'm aware that I should provide, let me know if you need more.[ 3.470352] thinkpad_acpi: ThinkPad ACPI Extras v0.25[ 3.470360] thinkpad_acpi: http://ibm-acpi.sf.net/[ 3.470363] thinkpad_acpi: ThinkPad BIOS GSET60WW (2.05 ), EC unknown[ 3.470366] thinkpad_acpi: Lenovo ThinkPad X140e, model 20BLS00400[ 3.476142] thinkpad_acpi: Unsupported brightness interface, please contact ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx[ 3.483092] thinkpad_acpi: radio switch found; radios are enabled[ 3.483124] thinkpad_acpi: possible tablet mode switch found; ThinkPad in laptop mode[ 3.483148] thinkpad_acpi: This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver[ 3.483151] thinkpad_acpi: Disabling thinkpad-acpi brightness events by default...
Well, brightness control for the X140e goes through the GPU drivers, and not thinkpad-acpi. Check the ATI Radeon driver stack, etc.
IOW, the issue is unlikely (but not impossible) to be related to thinkpad-acpi.
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