RE: ACPI and framebuffer related problems with Linux 2.6.1-rc1

RE: ACPI and framebuffer related problems with Linux 2.6.1-rc1

[Yu, Luming]

>However, there is a problem with ACPI:
/proc/acpi/processor/CPU0/performance, 
>which was there in previous versions of the kernel and allowed me to
slow the 
>CPU down in order to save power, disappeared in Linux 2.6.1-rc1. It's
simply 
>not there anymore. Was it replaced? 

It sounds like a regression. Would you file it on
http://bugzilla.kernel.org


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RE: [ACPI] ACPI and framebuffer related problems with Linux 2.6.1-rc1

[Yu, Luming]

>However, there is a problem with ACPI:
/proc/acpi/processor/CPU0/performance, 
>which was there in previous versions of the kernel and allowed me to
slow the 
>CPU down in order to save power, disappeared in Linux 2.6.1-rc1. It's
simply 
>not there anymore. Was it replaced? 

It sounds like a regression. Would you file it on
http://bugzilla.kernel.org

Re: ACPI and framebuffer related problems with Linux 2.6.1-rc1

[Karol Kozimor]

Thus wrote Yu, Luming:
> >However, there is a problem with ACPI:
> /proc/acpi/processor/CPU0/performance, 
> >which was there in previous versions of the kernel and allowed me to
> slow the 
> >CPU down in order to save power, disappeared in Linux 2.6.1-rc1. It's
> simply 
> >not there anymore. Was it replaced? 
> 
> It sounds like a regression. Would you file it on
> http://bugzilla.kernel.org

I guess he needs rather to compile the ACPI performance CPUFreq driver and
insmod acpi.ko, or something similar. That's a pretty non-obvious change
over 2.4.
Best regards,

-- 
Karol 'sziwan' Kozimor
sziwan-DETuoxkZsSqrDJvtcaxF/A@public.gmane.org


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Re: [ACPI] ACPI and framebuffer related problems with Linux 2.6.1-rc1

[Karol Kozimor]

Thus wrote Yu, Luming:
> >However, there is a problem with ACPI:
> /proc/acpi/processor/CPU0/performance, 
> >which was there in previous versions of the kernel and allowed me to
> slow the 
> >CPU down in order to save power, disappeared in Linux 2.6.1-rc1. It's
> simply 
> >not there anymore. Was it replaced? 
> 
> It sounds like a regression. Would you file it on
> http://bugzilla.kernel.org

I guess he needs rather to compile the ACPI performance CPUFreq driver and
insmod acpi.ko, or something similar. That's a pretty non-obvious change
over 2.4.
Best regards,

-- 
Karol 'sziwan' Kozimor
sziwan@hell.org.pl

RE: ACPI and framebuffer related problems with Linux 2.6.1-rc1

[Yu, Luming]

>notebook with cpufreq, but it still looks like a regression.
try http://bugzilla.kernel.org/show_bug.cgi?id=1766.


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ACPI and framebuffer related problems with Linux 2.6.1-rc1

[Martin Loschwitz]

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Hi folks,

I'm writing this mail as I'm discovering ACPI and framebuffer related problems
on my Acer TravelMate 800LCi notebook with Linux 2.6.1-rc1. First, it's good 
to see that the synaptics-patches from -mm made it into the mainstream kernel,
they are necessary to make the synaptics work together with XFree here.

However, there is a problem with ACPI: /proc/acpi/processor/CPU0/performance, 
which was there in previous versions of the kernel and allowed me to slow the 
CPU down in order to save power, disappeared in Linux 2.6.1-rc1. It's simply 
not there anymore. Was it replaced? If so, what is the right way to do it by 
now?

Secondly, there also is a framebuffer related problem. I have VesaFB in kern
and pass 'vga=791' to it at boot time. However, at the time when it switched
to FB in previous versions of Linux, the screen by now simply stays black. 
Is this a known problem and if so is a fix available?

-- 
  .''`.   Martin Loschwitz           Debian GNU/Linux developer
 : :'  :  madkiss@madkiss.org        madkiss@debian.org
 `. `'`   http://www.madkiss.org/    people.debian.org/~madkiss/
   `-     Use Debian GNU/Linux 3.0!  See http://www.debian.org/

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 189 bytes --]

Re: ACPI and framebuffer related problems with Linux 2.6.1-rc1

[Michael Guntsche]

On Thu, 1 Jan 2004 23:06:15 +0100
Martin Loschwitz <madkiss-R0iKqZn4BxJAfugRpC6u6w@public.gmane.org> wrote:

> However, there is a problem with ACPI:
> /proc/acpi/processor/CPU0/performance, which was there in previous
> versions of the kernel and allowed me to slow the CPU down in order to
> save power, disappeared in Linux 2.6.1-rc1. It's simply not there
> anymore. Was it replaced? If so, what is the right way to do it by
> now?

After reading this E-Mail I tested it on my notebook (TarvelMate800) and
noticed that even with kernel 2.6.0 

	/proc/acpi/processor/CPU0/limit and
	/proc/acpi/processor/CPU0/performance

disappeared.

Kernel 2.4.23:
($:/)-> cat /proc/acpi/processor/CPU0/info 
processor id:            0
acpi id:                 0
bus mastering control:   yes
power management:        yes
throttling control:      no
performance management:  yes
limit interface:         yes


Kernel 2.6.0:
($:/)-> cat /proc/acpi/processor/CPU0/info 
processor id:            0
acpi id:                 0
bus mastering control:   yes
power management:        yes
throttling control:      no
performance management:  no
limit interface:         no


I don't use the performance option, since I throttle my
notebook with cpufreq, but it still looks like a regression.



/Michael


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Re: ACPI and framebuffer related problems with Linux 2.6.1-rc1

[James Simmons]

> Secondly, there also is a framebuffer related problem. I have VesaFB in kern
> and pass 'vga=791' to it at boot time. However, at the time when it switched
> to FB in previous versions of Linux, the screen by now simply stays black. 
> Is this a known problem and if so is a fix available?

First try my new patch.

http://phoenix.infradead.org/~jsimmons/fbdev.diff.gz

If that doesn't work send me your config file.




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Re: ACPI and framebuffer related problems with Linux 2.6.1-rc1

[James Simmons]

> Secondly, there also is a framebuffer related problem. I have VesaFB in kern
> and pass 'vga=791' to it at boot time. However, at the time when it switched
> to FB in previous versions of Linux, the screen by now simply stays black. 
> Is this a known problem and if so is a fix available?

First try my new patch.

http://phoenix.infradead.org/~jsimmons/fbdev.diff.gz

If that doesn't work send me your config file.

Re: ACPI and framebuffer related problems with Linux 2.6.1-rc1

[James Simmons]

> Secondly, there also is a framebuffer related problem. I have VesaFB in kern
> and pass 'vga=791' to it at boot time. However, at the time when it switched
> to FB in previous versions of Linux, the screen by now simply stays black. 
> Is this a known problem and if so is a fix available?

First try my new patch.

http://phoenix.infradead.org/~jsimmons/fbdev.diff.gz

If that doesn't work send me your config file.


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