Bug 1549169
Summary: | Lenovo ThinkPad T470s hang on boot while in docking station | ||||||||
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Product: | [Fedora] Fedora | Reporter: | Stepan Broz <sbroz> | ||||||
Component: | kernel | Assignee: | Kernel Maintainer List <kernel-maint> | ||||||
Status: | CLOSED DUPLICATE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||||
Severity: | urgent | Docs Contact: | |||||||
Priority: | urgent | ||||||||
Version: | 27 | CC: | airlied, ajax, alex, bskeggs, bugzilla, ewk, hdegoede, ichavero, itamar, jarodwilson, jcline, jglisse, john.j5live, jonathan, josef, kernel-maint, labbott, linville, mchehab, mjg59, mzink, pep, sbobber, steved, wgold | ||||||
Target Milestone: | --- | ||||||||
Target Release: | --- | ||||||||
Hardware: | x86_64 | ||||||||
OS: | Linux | ||||||||
Whiteboard: | |||||||||
Fixed In Version: | Doc Type: | If docs needed, set a value | |||||||
Doc Text: | Story Points: | --- | |||||||
Clone Of: | Environment: | ||||||||
Last Closed: | 2018-03-13 12:27:13 UTC | Type: | Bug | ||||||
Regression: | --- | Mount Type: | --- | ||||||
Documentation: | --- | CRM: | |||||||
Verified Versions: | Category: | --- | |||||||
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||
Cloudforms Team: | --- | Target Upstream Version: | |||||||
Embargoed: | |||||||||
Attachments: |
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Description
Stepan Broz
2018-02-26 15:24:12 UTC
Same thing with multiple T470, T570 and X270 here save for the LUKS bit. Started right after sound fix for Lenovo docks was introduced. Non of the docks have audio connected. Rolling back to pre-audio fix kernels or 4.14.x resolves the issue. So indeed might be related to https://bugzilla.redhat.com/show_bug.cgi?id=1543326 *** Bug 1547536 has been marked as a duplicate of this bug. *** Hi, thanks for the bug report. The sound fix for the T470 was dropped after 4.15.2 so if 4.15.4 doesn't work for you, it's not related. More likely it's a regression introduced from 4.14 to 4.15 if 4.14.18 works. Can you try booting without "rhgb" and "quiet" in the kernel cmdline? That should turn off the graphical boot and enable more logging. I have tracked the issue down to: - The boot hangs when the laptop was powered-on with the lid closed. - When the system is powered on with lid open, the secondary display will start mirroring and the system even boots up eventually. - In all cases with the <broken> kernel, there is a new dmesg message that was not present with the older kernel: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun A screenshot where the boot hangs when powered on with lid closed will be attached. Created attachment 1401501 [details]
screenshot1
Created attachment 1401506 [details]
screenshot2
updatedb screenshot, the previous version was taken while the system was waiting for the LUKS password.
same issue with fedora 26 on hp elitebook 850 g4 i7 with hp docking station ultraslim latest working kernel 4.14.18-200.fc26.x86_64 If you have a working and non-working kernel running git bisect is going to be the best way to figure out what's broken. *** This bug has been marked as a duplicate of bug 1549042 *** |