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Kenduro
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Posts: 4
Registered: ‎10-06-2018
Location: AT
Views: 1,602
Message 1 of 7

Thinkpad e485 bios 1.45 resume from suspend failed - Linux

after bios update to 1.45 resume from suspend failed. it didn't wake up or write anything to the logfiles. 

(only a blank screen / no ssh )

 

resume worked fine with 1.32.  tested with fedora 29 and arch linux. 

 

 

 

 

 

 

marvinda
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Posts: 3
Registered: ‎09-11-2018
Location: DE
Views: 1,422
Message 2 of 7

Re: Thinkpad e485 bios 1.45 resume from suspend failed - Linux

Same problem with Ubuntu 18.04 (Kernel 4.19 rc8). Suspend/Resume worked perfectly fine with BIOS 1.32, but it is broken with BIOS 1.45.
hErMeS_0815
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Posts: 3
Registered: ‎10-18-2018
Location: DE
Views: 1,134
Message 3 of 7

Re: Thinkpad e485 bios 1.45 resume from suspend failed - Linux

Same problem here.

 

Current arch linux version

Kenduro
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Posts: 4
Registered: ‎10-06-2018
Location: AT
Views: 972
Message 4 of 7

Re: Thinkpad e485 bios 1.45 resume from suspend failed - Linux

have found a workaround that works for me now.

 

bios:

disable bluetooth and amd vmm

 

linux

before suspend unload ath10k_pci and ath10k_core

 

remove some udev rules for powersaving, discharge rate is now around 7W.

arch linux / kernel 4.20rc2 / boot parameter: iommu=soft amdgpu.ppfeaturemask=0xffffbfff

 

Kenduro
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Posts: 4
Registered: ‎10-06-2018
Location: AT
Views: 477
Message 5 of 7

Re: Thinkpad e485 bios 1.45 resume from suspend failed - Linux

update:

switching from arch linux to ubuntu.

 

ubuntu 18.10 with iommu=soft works very well. 

 

 

Kenduro
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Posts: 4
Registered: ‎10-06-2018
Location: AT
Views: 376
Message 6 of 7

Re: Thinkpad e485 bios 1.45 resume from suspend failed - Linux

update 05.12.18

 

archlinux with kernel 4.18.12 works very good.   (no need for works around - resume works after 8h and longer) 

after kernel 4.18.12 resume is broken. 

 

kernel linux-next 051218 works but after resume display is black - need to type brightness key. (testing)

 

kernel boot still needs: iommu=soft 

 

 

Micander
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Posts: 1
Registered: ‎12-09-2018
Location: DE
Views: 199
Message 7 of 7

Re: Thinkpad e485 bios 1.45 resume from suspend failed - Linux

Same Problem with 1.46 and Arch Kernel 4.19.4 - Standby and hybrid standby both don't come back. Black Screen - sometimes with frozen Mousepointer.

 

As kenduro pointed out unloading the modules works.

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