[SOLVED] N2 Ubuntu18.04 touch screen not working

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potato1992
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[SOLVED] N2 Ubuntu18.04 touch screen not working

Unread post by potato1992 » Thu Jun 06, 2019 12:00 pm

I have a 7 inch waveshare touch sreen with VID and PID as 0x0eef:0x0005, working perfect with N2+Android via disable VU7 like:
viewtopic.php?f=178&t=35189
And also works perfect with raspberry pi3.
However no such option in boot.ini inside image(20190325) with Ubuntu for odroid N2.

I have tried
setenv disable_vu7 "true"
and adding
if test "${disable_vu7}" = "false"; then setenv hid_quirks "usbhid.quirks=0x0eef:0x0005:0x0004"; fi
just before # Boot Args

I do not know how to modify the kernel to avoid this conflict. I just wondered how could I use this touch screen? Will there be new image adding this option?

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Re: N2 Ubuntu18.04 touch screen not working

Unread post by odroid » Thu Jun 06, 2019 8:46 pm

Can you show us your dmesg output?

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Re: N2 Ubuntu18.04 touch screen not working

Unread post by potato1992 » Fri Jun 07, 2019 10:43 am

odroid wrote:
Thu Jun 06, 2019 8:46 pm
Can you show us your dmesg output?
it's wrongly recognized as VU7

[ 576.975279] usb 1-1.3: Product: WaveShare Touchscreen
[ 576.975325] usb 1-1.3: Manufacturer: WaveShare
[ 576.975371] usb 1-1.3: SerialNumber: 2016-11-06
[ 577.017836] input: WaveShare WaveShare Touchscreen as /devices/platform/ff500000.dwc3/xhci-hcd.0.auto/usb1/1-1/1-1.3/1-1.3:1.0/input/input7
[ 577.021501] dwav_usb_mt 1-1.3:1.0: ODROID VU7 MultiTouch(800x480)

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Re: N2 Ubuntu18.04 touch screen not working

Unread post by odroid » Fri Jun 07, 2019 3:52 pm

I want to see the Kernel parameters in the very early stage of the dmesg output.

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Re: N2 Ubuntu18.04 touch screen not working

Unread post by odroid » Fri Jun 07, 2019 7:00 pm

We've tried but it doesn't work with hid_quirks option. Sorry about that.
We will try to find a solution early next week since it is already Friday evening here Korea.

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Re: N2 Ubuntu18.04 touch screen not working

Unread post by potato1992 » Sat Jun 08, 2019 11:20 am

Thank you for your effort!
The dmesg file is as attached.
odroid wrote:
Fri Jun 07, 2019 7:00 pm
We've tried but it doesn't work with hid_quirks option. Sorry about that.
We will try to find a solution early next week since it is already Friday evening here Korea.
Attachments
123.txt
(65.87 KiB) Downloaded 10 times

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Re: N2 Ubuntu18.04 touch screen not working

Unread post by odroid » Tue Jun 11, 2019 11:22 am

Update the Kernel to 4.9.180-30 via sudo apt update && sudo apt upgrade && sudo apt dist-upgrade.
It will fix the issue.

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Re: N2 Ubuntu18.04 touch screen not working

Unread post by potato1992 » Tue Jun 11, 2019 5:54 pm

Solved, thank you very much!
odroid wrote:
Tue Jun 11, 2019 11:22 am
Update the Kernel to 4.9.180-30 via sudo apt update && sudo apt upgrade && sudo apt dist-upgrade.
It will fix the issue.

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Re: N2 Ubuntu18.04 touch screen not working

Unread post by odroid » Tue Jun 11, 2019 6:09 pm

Glad to hear that. :)

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