Bug 7851
| Summary: | cpufreq shows bad/incomplete infos | ||
|---|---|---|---|
| Product: | Power Management | Reporter: | Patrizio Bassi (patrizio.bassi) |
| Component: | cpufreq | Assignee: | cpufreq (cpufreq) |
| Status: | REJECTED INVALID | ||
| Severity: | normal | ||
| Priority: | P2 | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Kernel Version: | 2.6.19.1 | Subsystem: | |
| Regression: | --- | Bisected commit-id: | |
E6300 lowest frequency multiplier is 6. This means that if you have FSB at 1066MHz, base CPU frequency is 1066/4=266, and lowest frequency your CPU may appear at is 266*6=1.6Ghz, exactly what you see. i'm quite surprised of this as another user reported me from 1.8 to 1.0 ghz. is speedstep implementation cutting only 200mhz on e6300? You can get 1.0G on mobile Core (2) Duo, just because it uses 166x4 FSB. E6300 is _not_ mobile part. |
Most recent kernel where this bug did *NOT* occur: Distribution: Gentoo Hardware Environment: Asus P5B Deluxe (P965 chipset), Core 2 Duo E6300 Software Environment: Gentoo 64bit Problem Description: cpufreq-info shows limiti hardware: 1.60 GHz - 1.86 GHz frequenze disponibili: 1.86 GHz, 1.86 GHz, 1.86 GHz, 1.86 GHz, 1.86 GHz, 1.86 GHz, 1.86 GHz, 1.86 GHz, 1.86 GHz, 1.60 GHz while it should go down until 1 ghz. /sys/devices/system/cpu/cpu{0,1}/cpufreq/scaling_available_frequencies says the same. i'm using the centrino /speedstep module. i tried acpi-speedstep but it does't detect anything and i have no freq scaling. according to http://forums.gentoo.org/viewtopic-p-3837305.html#3837305 an mm patch should be in place. if so, just tell me i'll be happy to test next week Steps to reproduce: run cpufreq-info