On 04/01/2014 05:38 PM, Shuduo Sang wrote: > > > On Tue, Apr 1, 2014 at 10:21 PM, Bo Lorentsen <bl@xxxxxxx > <mailto:bl@xxxxxxx>> wrote: > > On 04/01/2014 04:15 PM, Shuduo Sang wrote: > > Hi Bo, > > Can you post your .config? > > But of cause :-) please note that this is the default for Debian > Jessie (3.14rc7 amd64), I have not changed anything. > > /BL > > > Interesting. I encountered a similar issue on a Lenovo laptop and has > been fixed by the patch which mentioned > in http://marc.info/?l=linux-acpi&m=137568804802772&w=2. So I thought > latest vanilla kernel tree should contains the patch. While looking at the latest 3.14 kernel release (just released yesterday), it looks like something like it are present : https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/gpu/drm/i915/intel_panel.c?id=refs/tags/v3.14#n513 It seems like they just added other max values, but basically it looks like it is there ? /BL > > > Shuduo > > > > On Tue, Apr 1, 2014 at 9:17 PM, Bo Lorentsen <bl@xxxxxxx > <mailto:bl@xxxxxxx> <mailto:bl@xxxxxxx <mailto:bl@xxxxxxx>>> > wrote: > > Hi ... > > Now that my X1C are working I am quite happy about it, and > now I > am looking at the details. > > When I boot the laptop (Debian Jessie + 3.14rc7 + Shuduo's > patch) > I end up in a blank screen, the only way to get anywhere is to > suspend it and resume, and then i have a beautiful login > screen, > and the laptop works nicely until next reboot. > > In the dmesg i get the following remarks : > > [ 1.605320] thinkpad_acpi: ThinkPad BIOS GRET32WW (1.09 > ), EC > unknown > [ 1.605322] thinkpad_acpi: Lenovo ThinkPad X1 Carbon > 2nd, model > 20A7005LMD > [ 1.607060] thinkpad_acpi: Unsupported brightness > interface, > please contact ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx > <mailto:ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx> > <mailto:ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx > <mailto:ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx>> > > [ 1.607142] thinkpad_acpi: unknown version of the HKEY > interface: 0x200 > [ 1.607198] thinkpad_acpi: please report this to > ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx > <mailto:ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx> > <mailto:ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx > <mailto:ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx>> > > > I know the HKEY problem is worked on, but could the > "brightness > interface" problem be related to the blank screen after > boot problem ? > > /BL > > > > ------------------------------------------------------------------------------ _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel
