Re: Progess with GeoPad Tablet

[Hans de Goede <hdegoede@redhat.com>]

Hi Henry,

On 5-Apr-25 6:12 PM, Henry Isaac wrote:
> Hello Hans
> 
> Very sorry to email you directly again, I somehow lost the the emails with the community cc in, feel free to add them back or point me in that direction. No idea how I lost the emails. 
> 
> I think I may have made some progress. Before when running 
> 
> sudo i2cdetect -y -r 9 
> 
> We would get no output, just the lines all across. However withing the BIOS I found that settings for the touch panel could be changed. When switching from Goodix GT7385 device (which works in windows) to Goodix touch device when running the command again I get a new output 
> 
> Line 50 d 
> 
> Unsure if this is progress? 

Yes this is definitely progress for some reason changing
the BIOS option seems to have turned on the touchscreen.

The output now looking like this:

[henry@archlinux ~]$ sudo i2cdetect -y -r 9
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:                         -- -- -- -- -- -- -- -- 
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
50: -- -- -- -- -- -- -- -- -- -- -- -- -- 5d -- -- 
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
70: -- -- -- -- -- -- -- --                         

Indicates that the touchscreen is at the expected 0x5d
address, which matches with the "Goodix GT7385 Device"
option in the BIOS.

I wonder what happens if you change the BIOS option back
to "Goodix GT7385 Device" ?

Does "sudo i2cdetect -y -r 9" still show the 5d entry
then and/or does the touchscreen maybe start to work.

> I'm wondering if the bios has 2 different options. One for windows driver and one for generic Linux? (If that's a thing) 

No that is not it the "Goodix Touch Device" option
you chose is for a different Goodix touchscreen
at address 0x14. The touchscreen now showing up
at address 0x5d matches with the original
"Goodix GT7385 Device" selection.

Regards,

Hans