Re: вопрос по suspend/resume в goodix

[Bastien Nocera <hadess@hadess.net>]

On Thu, 2019-12-12 at 11:20 -0800, Dmitry Torokhov wrote:
> Hi Dmitry,
> 
> On Thu, Dec 12, 2019 at 06:34:46PM +0300, Dmitry Mastykin wrote:
> > Здравствуйте, Дмитрий.
> > Простите, что отвлекаю, если что - не отвечайте и в лучшем случае
> > пошлите в mail-list)
> > У меня есть планшет с x86, вариантом Debian с ядром 4.15 и
> > контроллером тач-скрина gt928.
> 
> What is the model of the tablet?
> 
> > После suspend/resume не всегда, но очень часто тачскрин перестает
> > работать и постоянно выводит:
> > [ 3276.729412] Goodix-TS i2c-GDIX1002:00: I2C write end_cmd error
> > [ 3276.770153] Goodix-TS i2c-GDIX1002:00: I2C transfer error: -121
> 
> When this happens, are these messages appear constantly, or only in
> response to actual touch? Can you still interact with the device?
> 
> Could you please send the full dmesg so we know more about the
> device.
> 
> Hans, Bastien, have you seen such issues with Goodix occasionally
> misbehaving on resume?

Good thing that Hans seems to have a handle on that, because this is
outside of my realm of knowledge (and I don't have easy access to a
device with a Goodix touchscreen anymore).

Cheers

> > По i2cget/i2cset контроллер успешно отвечает.
> 
> The fact that you can talk to the controller like that is
> interesting.
> Just to confirm, does it return sane data, or garbage?
> 
> Thanks.
>