Bug 1320922

Summary: Kernel 4.6 will not boot on Lenovo T500
Product: [Fedora] Fedora Reporter: Russel Winder <russel>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED RAWHIDE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: rawhideCC: gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda, mchehab
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2016-08-15 06:29:22 UTC Type: Bug
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Flags
Photo of final screen of failed boot. none

Description Russel Winder 2016-03-24 10:18:19 UTC 
The 4.6 kernels seem to work fine on Lenovo X201 and X1 Carbon, but fails to work on T500. The 4.5 kernel boots fine on all.

I am not sure how to collect useful data, other that photographing the screen of the various failure states. Please advise what would be helpful.
Comment 1 Josh Boyer 2016-03-24 11:30:06 UTC 
Photos of the screen would be a start.  Also, if you can narrow down which particular 4.6 kernel build this started with, that would also be very helpful.
Comment 2 Russel Winder 2016-03-30 17:57:58 UTC 
I'll try and get some snapshots.

As far as I can remember no 4.6 kernel has booted. 4.5 still boots fine (well apart from a WiFi network problem).
Comment 3 Russel Winder 2016-04-01 13:39:34 UTC 
Using 4.6.0-0.rc1.git0.1.fc25.x86_64 booting gives the me final screen as per the photos attached.
Comment 4 Russel Winder 2016-04-01 13:42:29 UTC 
Created attachment 1142569 [details]
Photo of final screen of failed boot.

Hopefully this can be read when zoomed on display. It is the result of booting 4.6.0-0.rc1.git0.1.fc25.x86_64 on a Lenovo T500 2016-04-01T13:57+01:00
Comment 5 Russel Winder 2016-04-24 06:51:27 UTC 
Something has changed, I find that:

4.6.0-0.rc4.git2.1.fc25.x86_64

boots fine on the T500 as well as X201, X1 and Dell Precision T5400.
Comment 6 Russel Winder 2016-08-15 06:29:22 UTC 
Time has passed on this bug as far as I am concerned, 4.7 and 4.8 are now here.