Bug 213615 - Native display black after kernel update from 5.11 --> 5.12. External monitor works fine.
Summary: Native display black after kernel update from 5.11 --> 5.12. External monitor...
Status: NEW
Alias: None
Product: Drivers
Classification: Unclassified
Component: Video(AGP) (show other bugs)
Hardware: Intel Linux
: P1 high
Assignee: Jean Delvare
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-06-29 07:47 UTC by ilia.volkov
Modified: 2021-06-29 10:37 UTC (History)
0 users

See Also:
Kernel Version: 5.12.12
Subsystem:
Regression: No
Bisected commit-id:

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Description ilia.volkov 2021-06-29 07:47:05 UTC 
After update kernel from 5.11 --> 5.12 native display on thinkpad t440p is black. Downgrade to 5.11 fix it. Xrandr detect native monitor as normal. Screen turns black after GRUB loaded, in elogin screen. 

Specs:

CPU: Intel i7-4700MQ (8) @ 3.400GHz
GPU: Intel 4th Gen Core Processor

Drivers:

00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06)
        Subsystem: Lenovo ThinkPad T440p
        Kernel driver in use: i915
        Kernel modules: i915
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