Bug 113351
Summary: | i7-6500U CPU on Thinkpad X1 Yoga does not boot without intel_pstate=no_hwp | ||
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Product: | Power Management | Reporter: | Mario Geiger (geiger.mario) |
Component: | intel_pstate | Assignee: | Chen Yu (yu.c.chen) |
Status: | CLOSED DUPLICATE | ||
Severity: | normal | CC: | jacek, kernel.org, lenb, lubko+kernel, rui.zhang, srinivas.pandruvada, yu.c.chen |
Priority: | P1 | ||
Hardware: | Intel | ||
OS: | Linux | ||
Kernel Version: | 4.4 | Subsystem: | |
Regression: | No | Bisected commit-id: |
Description
Mario Geiger
2016-02-27 22:51:04 UTC
I am experiencing the same issue with kernel 4.5.0.rc4. could you please test with: boot kernel with intel_pstate=no_hwp # modprobe msr # rdmsr 0x770 0 # wrmsr 0x773 0 # rdmsr 0x773 # wrmsr ox770 1 does it hang? I suspect this is related to https://bugzilla.kernel.org/show_bug.cgi?id=110941 The machine did not hang right after executing command, but froze completely a minute later when I pressed the mute button. # modprobe msr # rdmsr 0x770 0 # wrmsr 0x773 0 # rdmsr 0x773 0 # wrmsr 0x770 1 [hang immediately] Can you try to boot with idle=nomwait and see if you can boot (without intel_pstate=no_hwp or intel_pstate=disable)? I could not boot with idle=nomwait option. most likely a duplicate of #110941 https://bugzilla.kernel.org/show_bug.cgi?id=110941 *** This bug has been marked as a duplicate of bug 110941 *** |