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7 Posts

10-16-2018

GB

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  • Posts: 7
  • Registered: ‎10-16-2018
  • Location: GB
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[E480] Lenovo, could you please enable L1 substates for our PCIe lanes?

2018-10-16, 13:26 PM

I am using an E480 with the latest BIOS (1.24) and just realised that the L1 substates for all PCIe ports are disabled. I don't know if this was the case with previous BIOSes as well, but it is certainly wasting us battery life: the WLAN card, for instance, supports L1 substates but it's not activating them. Enabling would probably be just a matter of turning a switch in the Advanced BIOS tab, if it was available to end users, but since it's not we have to beg for an update from Lenovo.

 

Could you, Lenovo, please?

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