Bug 205319 - 'gpu has fallen off the bus' after return from suspend on Lenovo W540 / Nvidia Quadro K2100M
Summary: 'gpu has fallen off the bus' after return from suspend on Lenovo W540 / Nvidi...
Status: NEW
Alias: None
Product: Drivers
Classification: Unclassified
Component: PCI (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: drivers_pci@kernel-bugs.osdl.org
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2019-10-26 01:49 UTC by Wojciech Wieckowski
Modified: 2019-12-08 12:53 UTC (History)
3 users (show)

See Also:
Kernel Version: 5.3.0-19-generic
Subsystem:
Regression: No
Bisected commit-id:

Attachments
nvidia 0000:01:00.0: Refused to change power state, currently in D3 (80.40 KB, text/plain)
2019-10-26 01:49 UTC, Wojciech Wieckowski 		Details
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Description Wojciech Wieckowski 2019-10-26 01:49:49 UTC 
Created attachment 285653 [details]
nvidia 0000:01:00.0: Refused to change power state, currently in D3

Hello,
I was asked to report this bug here to involve kernel developers in recognizing problem that appeared recently on my Kubuntu laptop in the following circumstances:
Kernel was updated to 5.3.0-19,
Nvidia proprietary driver was updated to 435.21.
Nvidia DKMS driver was patched by ubuntu maintainers by removing call of pci_save_state() on switching to S3 state. Without this patch return from suspend works OK.
Kernel / Nvidia packages are from official (K)ubuntu repository.
Correction attempts and some other details can be found here: 
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1847937
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