Re: Unsupported brightness interface on X1 Carbon (1st gen)

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Any thoughts guys? This laptop has been out for a while so I'm not sure why it would be unsupported. I'd be happy to help code something up if we need to fix something and you point me in the right direction.

-Tyler

On Sat, Apr 5, 2014 at 10:23 PM, Tyler Brock <tyler.brock@xxxxxxxxx> wrote:
I'm running the latest BIOS (2.63) if that makes any difference.

-Tyler


On Sat, Apr 5, 2014 at 9:40 PM, Tyler Brock <tyler.brock@xxxxxxxxx> wrote:
I see this error in red during boot so I thought I'd contact you:

"Unsupported brightness interface, please contact ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx"

This is the full output from thinkpad_acpi from journalctl:

Apr 01 19:01:36 laphog kernel: thinkpad_acpi: ThinkPad ACPI Extras v0.25
Apr 01 19:01:36 laphog kernel: thinkpad_acpi: http://ibm-acpi.sf.net/
Apr 01 19:01:36 laphog kernel: thinkpad_acpi: ThinkPad BIOS G6ETA1WW (2.61 ), EC unknown
Apr 01 19:01:36 laphog kernel: thinkpad_acpi: Lenovo ThinkPad X1 Carbon, model 344822U
Apr 01 19:01:36 laphog kernel: thinkpad_acpi: Unsupported brightness interface, please contact ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx
Apr 01 19:01:36 laphog kernel: thinkpad_acpi: radio switch found; radios are enabled
Apr 01 19:01:36 laphog kernel: thinkpad_acpi: possible tablet mode switch found; ThinkPad in laptop mode
Apr 01 19:01:36 laphog kernel: thinkpad_acpi: This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver
Apr 01 19:01:36 laphog kernel: thinkpad_acpi: Disabling thinkpad-acpi brightness events by default...

-Tyler


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