Messages in this thread | | | Date | Tue, 10 Mar 2015 08:23:15 +0100 | From | Hans de Goede <> | Subject | Re: [PATCH v2 0/7] New Lenovos 2015 touchpads: party time! |
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Hi,
On 10-03-15 07:17, Steven Noonan wrote: > Hi Benjamin, > > I just got a ThinkPad X250 in today and have tried out your patches on > 3.19.1. Before the patches, the top TrackPoint buttons weren't working > at all, but the clickpad was working fine. For the most part, your > patches fixed the TrackPoint. > > There's something weird going on though. If I control the mouse cursor > with the trackpoint nub, it feels "slow". At first I though it was > running the video mode at half the normal refresh rate, because the > pointer was only moving at what felt like a 30Hz refresh rate. But > then I tried the trackpad, and it behaves as expected (snappy and > responsive). Note that this is a definite difference between the BDW > generation and the HSW generation, as my HSW ThinkPad Yoga feels fine. > > Is there something in the driver that controls the TrackPoint nub's > sampling rate?
Actually the trackpoint sensitivity is of (less sensitive) on the t440 / x240 generation too. There it seems slower then with previous thinkpads as well. I was hoping this would be fixed with the t450, but given that they've recycled the keyboard it makes sense that it is not fixed.
I still have writing a kernel patch for this on my todo list. In the mean time you can change the sensitivity as documented here:
http://www.thinkwiki.org/wiki/How_to_configure_the_TrackPoint#Sensitivity_.26_Speed
I plan to write a kernel patch to set a different sensitivity by default on these newer models to fix this ootb. If you can let me know what seems to be a good sensitivity that would be useful.
Regards,
Hans
> > - Steven > > On Mon, Mar 9, 2015 at 12:36 PM, Benjamin Tissoires > <benjamin.tissoires@gmail.com> wrote: >> On Mon, Mar 9, 2015 at 4:24 AM, Hans de Goede <hdegoede@redhat.com> wrote: >>> Hi, >>> >>> >>> On 09-03-15 07:46, Dmitry Torokhov wrote: >>>> >>>> On Wed, Feb 25, 2015 at 03:58:20PM +0100, Hans de Goede wrote: >>>>> >>>>> Hi, >>>>> >>>>> On 25-02-15 15:36, Benjamin Tissoires wrote: >>>>>> >>>>>> On Mon, Feb 16, 2015 at 10:23 PM, Benjamin Tissoires >>>>>> <benjamin.tissoires@gmail.com> wrote: >>>>>>> >>>>>>> On Fri, Feb 6, 2015 at 3:04 PM, Benjamin Tissoires >>>>>>> <benjamin.tissoires@redhat.com> wrote: >>>>>>>> >>>>>>>> Hi, >>>>>>>> >>>>>>>> This is the second episode of the Lenovo 2015 party :) >>>>>>>> >>>>>>>> Thanks to Andrew, we now have an idea within the driver of what are >>>>>>>> the extra >>>>>>>> buttons aimed for, and the patch series looks cleaner. >>>>>>>> Many thanks for your help. >>>>>>>> >>>>>>>> I marked only patches 1/7, 2/7 and 3/7 as stable because they are >>>>>>>> really >>>>>>>> stable fixes. Without the rest of the series, user-space can cope with >>>>>>>> the >>>>>>>> kernel result, and so there is IMO no need to backport too many >>>>>>>> patches in >>>>>>>> stable. I bet distributions will cherry-pick the rest of the series >>>>>>>> however. >>>>>>>> >>>>>>> >>>>>>> Guys, >>>>>>> >>>>>>> any chances we consider this for 3.20 (or whatever it will be >>>>>>> numbered)? >>>>>>> I'd really like to see this accepted upstream in one way or one other >>>>>>> so we will prevent the mess we had to deal with last year. >>>>>>> >>>>>> >>>>>> Hans, Dmitry, >>>>>> >>>>>> well, it's been 3 weeks since I received the loaner I have to support >>>>>> these touchpads. I will have to return it next week or the week after >>>>>> at most. That means that I will not be able to conduct more tests at >>>>>> that point. >>>>>> Can I ask you to please review the series? >>>>> >>>>> >>>>> Ah, sorry I missed you did a v2 (I did review v1). >>>>> >>>>> Series looks good to me and is: >>>>> >>>>> Acked-by: Hans de Goede <hdegoede@redhat.com> >>>> >>>> >>>> I did a few edits of the patches in the 2 series so I created a separate >>>> branch "synaptics" based on 3.19. I'd appreciate if you could give it q >>>> quick spin before I will send it for 4.0. >>> >>> >>> I don't have access to the hardware in question, but Benjamin does, so >>> we'll have to wait (a bit) for him to wake up :) >>> >> >> It took me a little bit of time to retrieve the laptop and get it tested. >> So far, so good: >> - t440s (2013) shows the correct behavior >> - x1 carbon 3 has the buttons properly forwarded through the >> trackstick interface and are reacting as expected. >> >> Thanks Dmitry! >> >> I've added Daniel to the thread and asked it this morning if he could >> also give a try to the series. >> >> Cheers, >> Benjamin >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> Please read the FAQ at http://www.tux.org/lkml/
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