| View previous topic :: View next topic |
| Author |
Message |
dolohow
Tux's lil' helper
Joined: 17 Jan 2010
Posts: 98
Location: Poland
|
 Posted: Thu Jul 05, 2012 8:31 pm Post subject: CPU frequency scalling |
 |
|
Hello!
Frequency scaling does not work on my A6-3500 AMD Llano
http://pastebin.com/raw.php?i=M8J9X6SD
I set up "ondemand"
Previously I had had Intel Q6600 and frequency scaling works without cpufreq
Last edited by dolohow on Fri Jul 06, 2012 10:47 am; edited 2 times in total |
|
| Back to top |
|
 |
BillWho
Veteran
Joined: 03 Mar 2012
Posts: 1600
Location: US
|
| Posted: Thu Jul 05, 2012 9:42 pm Post subject: |
|
|
dolohow,
What does cpufreq-info -o return 
_________________
Good luck 
Since installing gentoo, my life has become one long emerge  |
|
| Back to top |
|
|
dolohow
Tux's lil' helper
Joined: 17 Jan 2010
Posts: 98
Location: Poland
|
| Posted: Thu Jul 05, 2012 9:57 pm Post subject: |
|
|
| Just like I said I don't wanna use cpufreq |
|
| Back to top |
|
|
Gusar
Advocate
Joined: 09 Apr 2005
Posts: 2665
Location: Slovenia
|
| Posted: Thu Jul 05, 2012 10:20 pm Post subject: |
|
|
| dolohow wrote: | | Just like I said I don't wanna use cpufreq |
I assume you mean cpufreq-tools here. And my question is: Why? You have a problem and you don't want to use tools that would help diagnose it? What sense does that make?
Sure you could manually poke at stuff in /sys directly, it's not like cpufreq-tools does anything different than that. But you could also use a tool that does the low-level stuff for you.
Also, use pastebin to post the output of dmesg. |
|
| Back to top |
|
|
LoneFox
n00b
Joined: 10 Jan 2012
Posts: 8
|
| Posted: Fri Jul 06, 2012 4:10 am Post subject: |
|
|
The problem is here, you are using wrong driver:
| Quote: | CONFIG_X86_ACPI_CPUFREQ=y
# CONFIG_X86_POWERNOW_K8 is not set |
Enable the AMD (K8) driver, and it should just work. |
|
| Back to top |
|
|
Gusar
Advocate
Joined: 09 Apr 2005
Posts: 2665
Location: Slovenia
|
| Posted: Fri Jul 06, 2012 9:35 am Post subject: |
|
|
LoneFox, are you sure about that? Isn't powernow-k8 only for actual k8 processors, while modern AMD processors use acpi_cpufreq? A google search seems to agree with me: http://lwn.net/Articles/443375/. Of course it doesn't hurt to try powernow-k8 anyway.
Edit: Hmm, after a quick look at the kernel source, it seems that code isn't in there. So ok, powernow-k8 it is. |
|
| Back to top |
|
|
dolohow
Tux's lil' helper
Joined: 17 Jan 2010
Posts: 98
Location: Poland
|
| Posted: Fri Jul 06, 2012 10:40 am Post subject: |
|
|
| Now it works fine with powernow-k8 |
|
| Back to top |
|
|
|
Kernel & Hardware
