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]

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


-------------------------------------------------------
This SF.net email is sponsored by: IBM Linux Tutorials.
Become an expert in LINUX or just sharpen your skills.  Sign up for IBM's
Free Linux Tutorials.  Learn everything from the bash shell to sys admin.
Click now! http://ads.osdn.com/?ad_id\x1278&alloc_id371&op=click

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.


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/




-------------------------------------------------------
This SF.Net email is sponsored by: IBM Linux Tutorials
Free Linux tutorial presented by Daniel Robbins, President and CEO of
GenToo technologies. Learn everything from fundamentals to system
administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click

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.




-------------------------------------------------------
This SF.net email is sponsored by: IBM Linux Tutorials.
Become an expert in LINUX or just sharpen your skills.  Sign up for IBM's
Free Linux Tutorials.  Learn everything from the bash shell to sys admin.
Click now! http://ads.osdn.com/?ad_id=1278&alloc_id=3371&op=click

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

[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


-------------------------------------------------------
This SF.net email is sponsored by: IBM Linux Tutorials.
Become an expert in LINUX or just sharpen your skills.  Sign up for IBM's
Free Linux Tutorials.  Learn everything from the bash shell to sys admin.
Click now! http://ads.osdn.com/?ad_id=1278&alloc_id=3371&op=click

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


-------------------------------------------------------
This SF.net email is sponsored by: IBM Linux Tutorials.
Become an expert in LINUX or just sharpen your skills.  Sign up for IBM's
Free Linux Tutorials.  Learn everything from the bash shell to sys admin.
Click now! http://ads.osdn.com/?ad_id=1278&alloc_id=3371&op=click

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


-------------------------------------------------------
This SF.net email is sponsored by: IBM Linux Tutorials.
Become an expert in LINUX or just sharpen your skills.  Sign up for IBM's
Free Linux Tutorials.  Learn everything from the bash shell to sys admin.
Click now! http://ads.osdn.com/?ad_id\x1278&alloc_id371&op=click

ACPI and framebuffer related problems with Linux 2.6.1-rc1

[Martin Loschwitz]

[-- Attachment #1: Type: text/plain, Size: 1201 bytes --]

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 --]