Re: [PATCH] Add a quirk for the Dell XPS 13 (2015) when in PS/2 mode.

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On Mon, Mar 16, 2015 at 4:57 PM, Jason Ekstrand <jason@xxxxxxxxxxxxxx> wrote:
> On Mon, Mar 16, 2015 at 1:50 PM, Mario Limonciello
> <mario_limonciello@xxxxxxxx> wrote:
>>
>> On 03/16/2015 03:42 PM, Jason Ekstrand wrote:
>>>
>>> On Mon, Mar 16, 2015 at 11:50 AM, Mario Limonciello
>>> <mario_limonciello@xxxxxxxx> wrote:
>>> Thanks,
>>> I'm now running a hacked up kernel that's Torvalds' tree from Saturday
>>> morning (same as before) + a patch from Benjamin to fix the touchpad +
>>> the DSDT hack given above.  With that, I have HDA audio (not I2S)
>>> which is working.  Also, suspend/resume now works properly with this
>>> new cocktail.
>>> --Jason
>>
>> That's great to hear and definitely confirms that it was the sound card in
>> the funky state causing the suspend/resume issues.  Testing is ongoing with
>> that BIOS and if no issues crop up should be around soon.
>
> Thanks!  I look forwarding to *not* running a hacked-up kernel soon.
>
>> Is this the patch from Benjamin that you're running?
>> http://pkgs.fedoraproject.org/cgit/kernel.git/commit/?h=f21&id=d75cb059558345e47a13881512a1600e3e17ba21
>> I haven't yet run it myself.  I'm curious, what sort of behavior change do
>> you see with it?
>
> It reports as touchpad with a single button.  This makes the kernel
> report it as a "clickpad".  In particular, this means that libinput
> knows to make clicking in the lower-right turn into a right-click.
> With out that, there was no way to right-click since it reports as
> having a single button.  Benjamin could tell you more than me.

Yes, that's the gist of it.
Mario, you might not have seen the problem because you are not running
wayland and/or libinput. The xorg synaptics driver is much more
relaxed concerning what it received from the kernel and I think it
sets most of the time the right software button area if it sees only
one button.

Cheers,
Benjamin
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