Bug 5951 - Acer Aspire BIOS 3A29 reports to high min. frequency
Summary: Acer Aspire BIOS 3A29 reports to high min. frequency
Status: REJECTED DOCUMENTED
Alias: None
Product: Power Management
Classification: Unclassified
Component: cpufreq (show other bugs)
Hardware: i386 Linux
: P2 normal
Assignee: cpufreq
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2006-01-25 04:13 UTC by Danny Tholen
Modified: 2008-09-22 16:13 UTC (History)
2 users (show)

See Also:
Kernel Version: 2.6.16-rc1
Subsystem:
Regression: ---
Bisected commit-id:

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Description Danny Tholen 2006-01-25 04:13:14 UTC 
Acer Aspires used to have cpfreq problems because of broken PST tables. The 
powernow-k7 module works around this by falling back to ACPI. It seems more 
recent BIOS versions (3A29) have the problem again. This causes the cpu speed 
not to drop below 1450 MHz. Perhaps this version should be blacklisted as 
well. For more info, please look here: 
 
http://qa.mandriva.com/show_bug.cgi?id=18746 
 
 
Regards, 
 
Danny
Comment 1 Natalie Protasevich 2008-03-15 11:51:00 UTC 
The workaround there was "powernow-k7 acpi_force=1" on load.
Is this sufficient resolution? Does powernow-k7 require fixing? Or should this bug be closed.
Thanks.
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