https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=229791
Bug ID: 229791
Summary: ig4 autoload breaks S3 (ig4iic_pci0 controller error
during attach-2)
Product: Base System
Version: CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: misc
Assignee: [email protected]
Reporter: [email protected]
In reference to the commit r336141, which adds PNP table for the ig4 module,
when the module gets loaded on my Thinkpad T480, it drops the following
messages:
ig4iic_pci0: <Intel Sunrise Point-LP I2C Controller-0> mem
0xec154000-0xec154fff at device 21.0 on pci0
ig4iic_pci0: Using MSI
ig4iic_pci0: controller error during attach-2
iicbus0: <Philips I2C bus> on ig4iic_pci0
Now with the module loaded, S3 suspend (which works perfectly without the
module being loaded) fails, last message I see is
[drm:wait_for_engines] Failed to idle engines, declaring wedged!
and then the system hangs.
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