Re: Alps touchpad generates IRQ storm after S3

[Kai-Heng Feng]

Hi Xiaojian,

at 14:51, Xiaojian Cao <xiaojian.cao@xxxxxxxxxxx> wrote:

> Hi Ota-san,
>
> OK, we will look into it.
>
>
> Hi Kai-Heng,
>
> We will try to reproduce this issue first, could you please tell me the  
> target Ubuntu version?

Itâs distro-agnostic, any distro with mainline Linux can reproduce the issue.

Kai-Heng

> Best regards,
> Jason
>
> -----Original Message-----
> From: åç çå Masaki Ota <masaki.ota@xxxxxxxxxxxxxx>
> Sent: Wednesday, August 28, 2019 2:35 PM
> To: æ æå Xiaojian Cao <xiaojian.cao@xxxxxxxxxxx>; Kai-Heng Feng  
> <kai.heng.feng@xxxxxxxxxxxxx>
> Cc: Mario Limonciello <mario.limonciello@xxxxxxxx>; open list:HID CORE  
> LAYER <linux-input@xxxxxxxxxxxxxxx>; Linux Kernel Mailing List  
> <linux-kernel@xxxxxxxxxxxxxxx>; æè çæ Naoki Saito  
> <naoki.saito@xxxxxxxxxxxxxx>
> Subject: RE: Alps touchpad generates IRQ storm after S3
>
> Hi, Kai-Heng,
>
> Sorry, I'm not in charge of Linux task now.
>
> Hi, XiaoJian,
>
> Please check the following mail.
> If you have any question, please ask Kai-Heng.
>
> Best Regards,
> Masaki Ota
> -----Original Message-----
> From: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx>
> Sent: Wednesday, August 28, 2019 3:22 PM
> To: åç çå Masaki Ota <masaki.ota@xxxxxxxxxxxxxx>
> Cc: Mario Limonciello <mario.limonciello@xxxxxxxx>; open list:HID CORE  
> LAYER <linux-input@xxxxxxxxxxxxxxx>; Linux Kernel Mailing List  
> <linux-kernel@xxxxxxxxxxxxxxx>
> Subject: Alps touchpad generates IRQ storm after S3
>
> Hi Masaki,
>
> The Alps touchpad (044E:1220) on Dell Precision 7530 causes IRQ storm  
> after system suspend (S3).
> Commit "HID: i2c-hid: Don't reset device upon system resumeâ which solves  
> the same issue for other vendors, cause the issue on Alps touchpad.
> So Iâd like to know the correct command Alps touchpad expects after  
> system resume.
>
> Also Cc Mario because this could relate to BIOS.
>
> Kai-Heng