* [Buildroot] Buildroot Touchscreen goes to coordinates 0 0
@ 2021-01-20 2:56 Sebastián Conti
2021-01-21 21:22 ` Peter Seiderer
0 siblings, 1 reply; 5+ messages in thread
From: Sebastián Conti @ 2021-01-20 2:56 UTC (permalink / raw)
To: buildroot
I think is a usb touchscreen that is plug and play and have speakers, but
when I am trying to run a example from qt that you can draw, it draws a
line from coordinates 0 0 to where my finger is.
After installing evtest and building buildroot, the final coordinates of
every touch are 0x 0y.
If I test evest on other linux distro it works perfectly.
Thanks
Init screen: https://i.stack.imgur.com/1NqWY.jpg
Qt example: https://i.stack.imgur.com/xcnq4.jpg
Evtest: https://i.stack.imgur.com/Hqzce.jpg
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^ permalink raw reply [flat|nested] 5+ messages in thread
* [Buildroot] Buildroot Touchscreen goes to coordinates 0 0
2021-01-20 2:56 [Buildroot] Buildroot Touchscreen goes to coordinates 0 0 Sebastián Conti
@ 2021-01-21 21:22 ` Peter Seiderer
2021-02-09 18:57 ` Sebastián Conti
2021-02-09 19:47 ` Sebastián Conti
0 siblings, 2 replies; 5+ messages in thread
From: Peter Seiderer @ 2021-01-21 21:22 UTC (permalink / raw)
To: buildroot
Hello Sebasti?n,
On Tue, 19 Jan 2021 23:56:12 -0300, Sebasti?n Conti <sebaconti19@gmail.com> wrote:
> I think is a usb touchscreen that is plug and play and have speakers, but
> when I am trying to run a example from qt that you can draw, it draws a
> line from coordinates 0 0 to where my finger is.
> After installing evtest and building buildroot, the final coordinates of
> every touch are 0x 0y.
>
> If I test evest on other linux distro it works perfectly.
>
> Thanks
>
> Init screen: https://i.stack.imgur.com/1NqWY.jpg
>
>
> Qt example: https://i.stack.imgur.com/xcnq4.jpg
Looks strange...
>
>
> Evtest: https://i.stack.imgur.com/Hqzce.jpg
As evtest (more or less) only shows the decoded events coming from
the kernel/driver, I would suspect some hardware/driver defect
(maybe kernel version dependent)..., did you test the exact same
touchscreen hardware on the same board with an different distro
(which kernel versions)?
As a second check your can try out as an alternative the libinput
debug events feature (see [1])...
Regards,
Peter
[1] https://wayland.freedesktop.org/libinput/doc/latest/tools.html#libinput-debug-events
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Buildroot] Buildroot Touchscreen goes to coordinates 0 0
2021-01-21 21:22 ` Peter Seiderer
@ 2021-02-09 18:57 ` Sebastián Conti
2021-02-09 19:47 ` Sebastián Conti
1 sibling, 0 replies; 5+ messages in thread
From: Sebastián Conti @ 2021-02-09 18:57 UTC (permalink / raw)
To: buildroot
Peter Seiderer wrote
> did you test the exact same
> touchscreen hardware on the same board with an different distro
> (which kernel versions)?
Yes, I tested with ubuntu raspberry pi, because I am running on a rpi4b, and
the touchscreen worked.
I tried using a different kernel version, 5.4-raspi, but it didn't work.
Also I'm building with linux mint but when I was building with ubuntu it
worked fine except for the 3000 errors that give me on building qt and qt
did not worked fine.
I do not know what else I could change...
--
Sent from: http://buildroot-busybox.2317881.n4.nabble.com/
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Buildroot] Buildroot Touchscreen goes to coordinates 0 0
2021-01-21 21:22 ` Peter Seiderer
2021-02-09 18:57 ` Sebastián Conti
@ 2021-02-09 19:47 ` Sebastián Conti
2021-02-13 15:44 ` Peter Seiderer
1 sibling, 1 reply; 5+ messages in thread
From: Sebastián Conti @ 2021-02-09 19:47 UTC (permalink / raw)
To: buildroot
I was wrong, I tried libinput and it worked,
thanks
--
Sent from: http://buildroot-busybox.2317881.n4.nabble.com/
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Buildroot] Buildroot Touchscreen goes to coordinates 0 0
2021-02-09 19:47 ` Sebastián Conti
@ 2021-02-13 15:44 ` Peter Seiderer
0 siblings, 0 replies; 5+ messages in thread
From: Peter Seiderer @ 2021-02-13 15:44 UTC (permalink / raw)
To: buildroot
Hello Sebasti?n,
On Tue, 9 Feb 2021 13:47:44 -0600 (CST), Sebasti?n Conti <sebaconti1911@gmail.com> wrote:
> I was wrong, I tried libinput and it worked,
>
> thanks
Thanks for the feedback...., seems the extra libinput layer/handling
is doing the right thing...
Regards,
Peter
>
>
>
> --
> Sent from: http://buildroot-busybox.2317881.n4.nabble.com/
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2021-02-13 15:44 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2021-01-20 2:56 [Buildroot] Buildroot Touchscreen goes to coordinates 0 0 Sebastián Conti
2021-01-21 21:22 ` Peter Seiderer
2021-02-09 18:57 ` Sebastián Conti
2021-02-09 19:47 ` Sebastián Conti
2021-02-13 15:44 ` Peter Seiderer
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