> Date: Tue, 14 Dec 2021 02:20:11 +0000 > From: Renato Aguiar <[email protected]> > > I did some investigation over the weekend and I was able to get more > information about the problem and find a better workaround. > > There are 3 devices attaching to `dwiic* at pci0': > > dwiic0 at pci0 dev 21 function 0 "Intel 500 Series I2C" rev 0x20: apic 2 int > 27 > > I have no idea what this one is for, but it keeps sending interrupts > after resume and that is what is causing the laptop to freeze. > Disabling this device alone "fixes" suspend/resume for me. > > dwiic1 at pci0 dev 21 function 1 "Intel 500 Series I2C" rev 0x20: apic 2 int > 40 > > This is for some special keyboard keys, like brightness control.
BTW, these keyboard keys might need the i2c ihidev(4) equivalent of the ucc(4) driver.
