This is the latest ubuntu LTS (14.04 iirc) I will double check when I get home.
That said, the suspend functionality apparently works now, but this regression did occur after I installed an ssd and reinstalled with the latest LTS ubuntu.
On Thu, May 7, 2015 at 1:17 PM, Henrique de Moraes Holschuh <hmh@xxxxxxxxxx> wrote:
On Thu, May 7, 2015, at 14:19, Henrique de Moraes Holschuh wrote: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.I replied too soon. This is either an Ubuntu or Debian with a 3.16 kernel, correct? Apparently there is some sort of change (and a regression) in the 3.16-ckt longterm kernel series which both distros use for their kernels.It is still very weird that it caused an user-visible change in brightness handling, but I need to know what changed in that kernel to understand what is happening.--"One disk to rule them all, One disk to find them. One disk to bringthem all and in the darkness grind them. In the Land of Redmondwhere the shadows lie." -- The Silicon Valley TarotHenrique Holschuh
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