Issue #477 has been reported by Stan Janssen.
---------------------------------------- Feature #477: Excessive Power Draw with USB-PD https://ticket.coreboot.org/issues/477
* Author: Stan Janssen * Status: New * Priority: Normal * Target version: none * Start date: 2023-03-31 * Affected hardware: Starbook MK V ---------------------------------------- I have a StarBook MK V with Coreboot connected to a Dell S2719DC external monitor that supplies 45 W of power over USB-C. However, the laptop draws more than the available 45W of power and the display shuts down with a warning message: "Excessive Power Draw from connected device".
I understand that this power management feature could be handled in Coreboot. Is this a feature that could be supported in Coreboot in the future? Is there something that I could do to support the development of this feature? Is there a workaround in the meantime?
Thanks!
Issue #477 has been updated by Sean Rhodes.
Already advised to set the power profile to `Power Saver`, as that limits overall draw to 30W.
Currently no way to write MSRs with UPL handling SMM.
---------------------------------------- Feature #477: Excessive Power Draw with USB-PD https://ticket.coreboot.org/issues/477#change-1457
* Author: Stan Janssen * Status: New * Priority: Normal * Target version: none * Start date: 2023-03-31 * Affected hardware: Starbook MK V ---------------------------------------- I have a StarBook MK V with Coreboot connected to a Dell S2719DC external monitor that supplies 45 W of power over USB-C. However, the laptop draws more than the available 45W of power and the display shuts down with a warning message: "Excessive Power Draw from connected device".
I understand that this power management feature could be handled in Coreboot. Is this a feature that could be supported in Coreboot in the future? Is there something that I could do to support the development of this feature? Is there a workaround in the meantime?
Thanks!
Issue #477 has been updated by Stan Janssen.
While setting the power profile to `Power Saver` works to limit the power draw if the battery is already full, it did not work while the battery was only 20% charged.
---------------------------------------- Feature #477: Excessive Power Draw with USB-PD https://ticket.coreboot.org/issues/477#change-1458
* Author: Stan Janssen * Status: New * Priority: Normal * Target version: none * Start date: 2023-03-31 * Affected hardware: Starbook MK V ---------------------------------------- I have a StarBook MK V with Coreboot connected to a Dell S2719DC external monitor that supplies 45 W of power over USB-C. However, the laptop draws more than the available 45W of power and the display shuts down with a warning message: "Excessive Power Draw from connected device".
I understand that this power management feature could be handled in Coreboot. Is this a feature that could be supported in Coreboot in the future? Is there something that I could do to support the development of this feature? Is there a workaround in the meantime?
Thanks!
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Sean Rhodes -
Stan Janssen