On 07/24/2018 06:54 PM, Pali Rohár wrote: > On Monday 11 September 2017 13:26:30 Juanito wrote: >> Hi Masaki Ota, >> >> Thanks! >> >> On 11.09.2017 04:38, Masaki Ota wrote: >>> Hi, Juanito, >>> >>> In my information, ALPS Touchpad is used on Thinkpad E series and L series. >>> I don't know the device that is ALPS Touchpad + other vendor TrackStick. >>> But Lenovo might use ALPS Touchpad on such a combination. >>> >> >> Well, that is probably my fault, as it is not the original touchpad that >> was delievered with the laptop. I bought the touchpad (that included >> the three buttons) separately because I didn't like the clickpad that >> came with my laptop. >> >>> And I have found that the V7 protocol device has a special ID for Lenovo. >>> ALPS assigns the value that is the model type to 0xC399 address. >>> >>> Could you check 0xC399 address value such like a below code? >>> reg_val = alps_command_mode_read_reg(psmouse, 0xC399); >>> >>> If the value is 0x1 or 0x2 or 0x6 or 0x10 or 0xF, it has a Stick buttons. >>> >> >> I will check this as soon as I can (I don't have access to the laptop >> right now). > > Hi Juanito! Hi Pali, Thank you very much for this! > > Now one friend told that he bought on ebay "usable touchpad" to replace > default one on Thinkpad T440 (that one without physical buttons). > > One which he bought is ALPS V7 and it works fine on that T440. And also > trackpoint with buttons are working. > > He told that first time he had connected & assembled it, trackpoint have > not worked. And it was because he forgot to connect something in > trackpoint. So he need to disassemble it again, check, connect and > assemble laptop back. > > So now I have confirmed that replaced ALPS V7 is working fine at least > on some T440 laptops. > > So if you wrote that buttons (above touchpad) are working, but > trackpoint not, maybe you have same problem? Forgot to properly connect > trackpoint? If it is really disconnected, then ALPS touchpad is not able > to detect it and therefore tell kernel that trackpoint is not available. > What actually bothers me is that the buttons above the touchpad *don't* work. With Ubuntu 14.04 (I think), they definitely worked. *And* I could scroll with two fingers too. It also did work with the crappy patch I sent, although I haven't managed to correctly compile the kernel since then. I am not sure if the trackpoint ever worked because I never really cared for it. I will re-open the laptop at some point and see if there is a flying cable somewhere. Again, thank you very much for taking the time to point this out. Cheers, Juanito
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