Re: can't disable Thinkpad touchpad
On Fri, 10 Jul 2015, Jape Person wrote:
> One idea (maybe far-fetched) did occur to me. Are you using the
> intel-microcode / iucode-tool (or the AMD alternative) for updating the
> microcode at boot time? If so, I guess its remotely possible that a fix in
> the microcode update is defeating your attempt at turning the touchpad off
Meh, I've had weird things blamed on the *-microcode packages before, but
THAT is a new one :-)
The USB keyboard and encrypted root password prompt issues in jessie are
almost always caused by: missing modules or missing USB firmware in the
initramfs; a required module not being autoloaded for some reason (list it
in /etc/modules to fix -- and rebuild the initramfs, of course); and several
issues in the cryptsetup support for encrypted root in the initramfs in
systemd mode, which I *thought* were already fixed.
Reading through the initramfs-tools and cryptsetup bug tracker pages
might help.
http://bugs.debian.org/initramfs-tools
http://bugs.debian.org/cryptsetup
The Synaptics touchpad in the Thinkpad X250 is new hardware, and it is not
fully supported even by kernel 4.1, as there is still a rather nasty issue
in the way the current driver operates related to either multitouch or
gesture support, I think. It is being addressed upstream, search the LKML
archives of the last month for threads with 'synaptics' in the name.
This page has good details on Debian support for the X250:
http://www.corsac.net/X250/
> You could also make sure that you're running the latest version of the BIOS,
That's pretty much a non-optional rule for thinkpads, *especially* recently
lauched ones. Keep your firmware up-to-date.
--
"One disk to rule them all, One disk to find them. One disk to bring
them all and in the darkness grind them. In the Land of Redmond
where the shadows lie." -- The Silicon Valley Tarot
Henrique Holschuh
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