(In reply to comment #28)
> (In reply to comment #27)
> > Tried with 2014-01-28 nightly and didn't work (screen on boot, blank on
> > resume from suspend).
> > Output from dmesg with drm.debug=0xe added.
>
> Why "acpi_osi=" in kernel cmdline?
Fixes a couple of other issues : Airplane mode key and Screen backlight control key (doesn't work otherwise, c.f. https://bugs.launchpad.net/ubuntu/+bug/1270661) Yeah, that laptop is a gift :)
(In reply to comment #28)
> (In reply to comment #27)
> > Tried with 2014-01-28 nightly and didn't work (screen on boot, blank on
> > resume from suspend).
> > Output from dmesg with drm.debug=0xe added.
>
> Why "acpi_osi=" in kernel cmdline?
Fixes a couple of other issues : Airplane mode key and Screen backlight control key (doesn't work otherwise, c.f. https:/ /bugs.launchpad .net/ubuntu/ +bug/1270661) Yeah, that laptop is a gift :)