ACK: [PATCH 0/1][SRU][OEM-5.10] Add an OEM _OSI string to workaround auto-wakeup

Colin Ian King colin.king at canonical.com
Sat Jan 16 10:44:13 UTC 2021


On 16/01/2021 00:44, Alex Hung wrote:
> BugLink: https://bugs.launchpad.net/bugs/1902577
> 
> [Impact]
> TGL systems wake up automatically from s2idle when connecting to a docking
> station with a monitor. The wake-up events are generated when BIOS sets
> ALL_MONITOR_OFF for power-saving on TGL systems.
> 
> [Fix]
> A BIOS workaround is used to skip ALL_MONITOR_OFF with an _OSI string
> "Linux-Dell-USB4-Wakeup".
> 
> [Test]
> Verified on Dell's TigerLake platforms
> 
> [Regression Potential]
> Low. This only works on platforms supporting "Linux-Dell-USB4-Wakeup".
> No other platforms will be affected.
> 
> Note: This patch was sent and merged to OEM-5.6, but BIOS fixes are
> not ready and thus this is needed in oem-5.10 too.
> 
> Alex Hung (1):
>   UBUNTU: SAUCE: ACPI: avoid auto-wakeup with an _OSI string
> 
>  drivers/acpi/osi.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
I believe this is a SAUCE patch and should be tagged as such when
applied.  Should/can this be upstreamed too?


Acked-by: Colin Ian King <colin.king at canonical.com>



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