Bug 209671

Summary: 1st Gen Ryzen laptop freeze with CONFIG_PCIEASPM_POWERSAVE=y
Product: Drivers Reporter: Kai-Heng Feng (kai.heng.feng)
Component: PCIAssignee: drivers_pci (drivers_pci)
Status: NEW ---    
Severity: normal    
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: mainline Subsystem:
Regression: No Bisected commit-id:
Attachments: dmesg
lspci, CONFIG_PCIEASPM_POWERSAVE=y, patch applied

Description Kai-Heng Feng 2020-10-14 08:32:11 UTC
When CONFIG_PCIEASPM_POWERSAVE=y, Latitude 5495, which is a 1st Gen Ryzen Laptop, freeze immediately after boot.

Patch [1] can solve the issue, the system no longer freezes with CONFIG_PCIEASPM_POWERSAVE=y.

[1] https://lore.kernel.org/linux-pci/20201007132808.647589-1-ian.kumlien@gmail.com/
Comment 1 Kai-Heng Feng 2020-10-14 08:32:39 UTC
Created attachment 292953 [details]
Comment 2 Kai-Heng Feng 2020-10-14 08:33:20 UTC
Created attachment 292955 [details]
Comment 3 Kai-Heng Feng 2020-10-14 08:33:40 UTC
Created attachment 292957 [details]
lspci, CONFIG_PCIEASPM_POWERSAVE=y, patch applied