Public bug reported:
[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.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Incomplete
** Description changed:
Some TGL systems wake up automatically from s2idle when connecting to a
docking station with a monitor. The wake-up events are generated when
- BIOS turns off ALL_MONITOR_OFF for power-saving on TGL systems.
+ BIOS sets ALL_MONITOR_OFF for power-saving on TGL systems.
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https://bugs.launchpad.net/bugs/1902577
Title:
TGL system automatically resumes from s2idle when connecting to a
docking station with a monitor
Status in linux package in Ubuntu:
Incomplete
Bug description:
[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.
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https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1902577/+subscriptions
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