> On Aug 26, 2020, at 08:27, Brian Norris <briannor...@chromium.org> wrote: > > On Mon, Aug 24, 2020 at 2:32 AM Kai-Heng Feng > <kai.heng.f...@canonical.com> wrote: >> >> Sometimes system freeze on cold/warm boot when rtw88 is probing. >> >> According to [1], platform firmware may not properly power manage the >> device during shutdown. I did some expirements and putting the device to >> D3 can workaround the issue. >> >> So let's power cycle the device by putting the device to D3 at shutdown >> to prevent the issue from happening. >> >> [1] https://bugzilla.kernel.org/show_bug.cgi?id=206411#c9 >> >> Signed-off-by: Kai-Heng Feng <kai.heng.f...@canonical.com> > > Can you at least include some more details, like which hardware > version and firmware? 8723DE, 8822BE and 8822CE are affected [1]. > And which platform? Many x86 laptops. Some users claim BIOS update can fix the issue, however some are still affected. > It seems a bit harsh to > include a platform workaround to run for everyone, unless there's > truly no downside. But even then, it's good to log what you're working > with, in case there are ever problems with this in the future. Ok. I can send V2 with more detailed commit message. [1] https://bugs.launchpad.net/bugs/1872984 Kai-Heng > > Brian
