OK, in case someone finds this useful - got the Lid working as well.
Disabling everything suspicious and not needed in the BIOS seems to have
done the job. (esp. disabling the Intel Rapid Start, as it seems to
interfere with sleep states. But this could be just a coincidence).

X1 Carbon 2nd Gen is now 99% operational (harmless Intel drm errors
remaining).





On 28 May 2015 at 21:36, Bojan Nastic <[email protected]> wrote:

> As an update - fiddling with BIOS and holding power button for 2-3 seconds
> seems to wake up the machine now!
>
> (Again, this is an i7-4550u with HD5000 GPU)
>
> What works:
> - Waking up!
>
> What doesn't quite work:
> - Lid opening still doesn't wake
> - HD5000 driver is spewing errors on sleep/wake,
> so waking from within X will show console errors
> before rendering the screen properly.
>
>
>
> On 26 May 2015 at 20:58, Bojan Nastic <[email protected]> wrote:
>
>>
>>
>> On 26 May 2015 at 10:44, Laurence Tratt <[email protected]> wrote:
>>
>>> On Mon, May 25, 2015 at 08:21:19PM +0100, Bojan Nastic wrote:
>>>
>>> > Anyone having much luck with 5.7 or -current on Thinkpad X1 Carbon 2nd
>>> gen
>>> > (Haswell chip)?
>>>
>>> It works pretty well (including wireless), although on my machine the
>>> lack
>>> of a specific video driver means that things in X can be painfully slow
>>> (forget about watching a video!).
>>>
>>> > Everything seems to be working fine, except for waking from suspend.
>>> > Suspend works fine, either via 'zzz' or closing the lid, but waking it
>>> up
>>> > doesn't work -- hardware seems unresponsive, the sleep light stays on
>>> > regardless of what I do to it (pressing buttons, opening the lid...)
>>>
>>> When I do this, the OS is still working, but the screen doesn't wake
>>> back up
>>> (whether this is related to X running in the background or not, I don't
>>> know
>>> -- I never run without X). I can see this happening as follows. Log in as
>>> root on console 1. Suspend with zzz (I don't use suspend-with-lid).
>>> Resume
>>> by pressing the power button. [At this point the screen is blank.] Type
>>> "reboot". Wait a little while and the machine will reboot. I appreciate
>>> that's not hugely useful, but it does mean that, if I want to test
>>> suspend/resume support ever so often, I don't have to fsck afterwards...
>>>
>>>
>> Thanks for the tip, but unfortunatelly, it doesn't work in this case.
>> The whole machine goes to sleep, so even the LED strip at the top,
>> with F "keys", is switched off, no way to switch to console.
>>
>> Apparently, this all works fine for people with Haswell and HD4000 GPU,
>> but mine is an i7 Haswell with HD5000. (Fwiw, it does throw video
>> driver errors when switching from X to console).
>>
>>
>> --Bojan

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