OpenSuse 11.4 high CPU usage on scrolling

Hi,
as the title says my CPU goes on C0 state (100%) on every scroll and then returns down after a couple of seconds.

Is it normal?

I’ve checked this with powertop (and with my ears because I hear the fan noise…)

Only when you make boot and turn on your pc?

No, every time that I scroll with touchpad or mouse on every application …

I had that problem when I was running 10.1. It was due to a mismatch between the display and the graphics resolution. I switched to an nvidia driver, and that fixed the problem.

I never had that problem in 11.0, 11.3 or 11.4, so presumably the default linux drivers now handle my graphics card and display correctly.

I’m guessing that you, too, are having a video adapter problem.

No I have not problems with my graphic’s drivers. I have AMD RADEON 6990 in my pc and I wait drivers for it. Which graphics card do you have?

My comment was to StillLife, who started this thread.

I have nVidia GeForce 6150 LE. But I am not currently having a problem. I did have a problem back in 2007.

Now you have problems with CPU temperature?

On 04/05/2011 05:06 PM, StillLife wrote:
>
> as the title says my CPU goes on C0 state (100%) on every scroll

-=welcome=- new poster…

but since we don’t a crystal ball we don’t know much about what you have
there…so please give us some more info:

what operating system and version are you using?
what desktop environment and version?
are both running in a VM or directly on the machine?

what graphics chip?
have you installed the best driver? see http://tinyurl.com/37v9y7m

you say it happens in all applications…would that include Firefox,
Thunderbird, KMail, Evolution, Opera, Konsole, OpenOffice, Okular, GIMP
and in a terminal a long list in ‘less’?

if so, then in addition to checking your graphics driver i’d check with
the system manufacturer and see if there is a BIOS update or recall…

by the way, you didn’t mention if yours is a netbook or a rackmounted
server on the other side of the earth that you are accessing via a
remote desktop…so, tell us about your hardware, please…

or, maybe you need a new driver for the touchpad/mouse–is your hardware
certified for Linux? (or have a Penguin on box it came in?)

again, welcome…


CAVEAT: http://is.gd/bpoMD [NNTP via openSUSE 11.3 + KDE4.5.5 +
Thunderbird3.1.8] Can you believe it? This guy Ralph wins $181 million
in the lottery last Wednesday, and then finds the love of his life just
2 days later. Talk about LUCK!

Thank you all for helping. I’ve done a mistake and now I’ll try to explain better.

First of all I have KDE4.6.0-OpenSuse 11.4 in an HP notebook with updated BIOS and a NVIDIA GForce 8400m gs with nvidia drivers (installed by the official 11.4 repository). I need that driver because I need 3D accelerated graphics and OpenGL support.

The problem that I have is not relative to the C-state (as I wrongly said before) of the processor but is relative to the CPU consuming of Xorg. I explain better:

when I scroll with firefox, okular, thunderbird, libreoffice and other apps, xorg takes 25% of CPU and the fan (unique fan both for CPU than video card) starts to make noise. After the scroll xorg returns to 2% of CPU. This occurs both with touchpad than with usb mouse. My touchpad is the standard HP touchpad.

Is it normal?
Can I configure my xorg.conf in an optimal way?

Thanks a lot

On 04/06/2011 06:06 PM, StillLife wrote:
>
> Is it normal?

thanks for the new details…unfortunately, with it i can only say that
it may or may not be ‘normal’…

i know (from reading around in the forums for three years) that some HP
notbooks like Linux better than some others…some work perfect with the
power savings and cpu throttling stuff with ultra quiet fans in openSUSE
and some don’t…

also, some HPs are old and lots of cat hair and chicken bones floating
around inside…and, therefore have a heat build up problem and run
fans like crazy…

and, some HPs which ran great on 10.3 are noisy on 11.3 (and vice versa)…

also, some HPs run great (and quite) with openSUSE and not so great with
Ubuntu/Red Hat/etc (and vice versa)

and, some HPs run quietly with WinX and not with any Linux–which some
HPs run silently with some Linux distros and not with WinX

tell me, is your HP certified for Linux or Windows or both…(they sell
machines for either, but as far as i know, not for both)

have you looked on the HP site to see if there is an BIOS update
available? or any information on using the machine with anything other
than Windows?

so, to determine what is normal we need to find some other folks running
openSUSE 11.4 on the same model number as yours, and learn if yours is
normal, or not…

is there an HP forum where you might find a bunch of folks running Linux
on your model?

another way to do that is with google, maybe a search string like

site:opensuse.org “11.4” “HP [model number]” “GForce 8400m” “fan noise”
OR loud OR “noisy fan”

if you don’t get much from that, drop off the graphics or change up some
of the other stuff…

and, maybe drop the site specific and see if there is a generic Linux
problem with your model, like this

linux “HP [model number]” “GForce 8400m” “fan noise” OR loud OR “noisy
fan” OR problem OR trouble

> Can I configure my xorg.conf in an optimal way?

if you are lucky you will find someone with your exact model who had the
same problem AND figured out how to solve it AND wrote that into a post,
somewhere…

by the way: do you have an xorg.conf?


CAVEAT: http://is.gd/bpoMD [NNTP via openSUSE 11.3 + KDE4.5.5 +
Thunderbird3.1.8] Can you believe it? This guy Ralph wins $181 million
in the lottery last Wednesday, and then finds the love of his life just
2 days later. Talk about LUCK!

ok… but, is 25% of CPU (for a simple scroll) correct?

and yes, I have xorg.conf (nvidia drivers use it…)

Maybe responsible for that problem is these drivers. Try to remove them and check if that solves this problem.

On 04/07/2011 12:36 AM, StillLife wrote:
>
> ok… but, is 25% of CPU (for a simple scroll) correct?

it is not ‘correct’ for this machine, with my graphics and drivers, and
my suite of software, and if i used desktop effects (or not), any my
mouse scroll wheel drivers, and trackpad drivers (if i had a track pad)…

here my CPU usage hardly moves when i scroll…how was it on your
machine with openSUSE 11.3 (with its different kernel, different KDE,
etc etc etc

sorry, but i can’t quantify ‘normal’ or ‘correct’ any better for you…i
can say that it is very normal for hardware manufacturers (like HP) to
work closely with software makers to make SURE the two work correctly
together…and if your machine was specificially engineered to work
great (quiet, cool, long battery life, smooth low CPU use when
scrolling, etc) with Win7 it may or may not give the same performance
with either openSUSE or WinVista)…

have you checked the hardware compatibility list to see if others have
had similar experience?

> and yes, I have xorg.conf (nvidia drivers use it…)

ah, yes…


CAVEAT: http://is.gd/bpoMD [NNTP via openSUSE 11.3 + KDE4.5.5 +
Thunderbird3.1.8] Can you believe it? This guy Ralph wins $181 million
in the lottery last Wednesday, and then finds the love of his life just
2 days later. Talk about LUCK!

I do not know about that, I thing maybe these drivers are responsible.

Off topic. Sorry for my curiosity now you are online or offline. How do make this?:slight_smile:

On 04/07/2011 12:36 PM, stamostolias wrote:
> Off topic. Sorry for my curiosity now you are online or offline. How do
> make this?:slight_smile:

i am very seldom “on line” with http://forums.opensuse.org, but almost
always on line, and often read/post to the the forums via nntp using
Thunderbird…

for me, i find it much more convenient, efficient and far faster to find
new posting, read more here:

http://forums.opensuse.org/faq.php?faq=novfor#faq_nntp


CAVEAT: http://is.gd/bpoMD [NNTP via openSUSE 11.3 + KDE4.5.5 +
Thunderbird3.1.8] Can you believe it? This guy Ralph wins $181 million
in the lottery last Wednesday, and then finds the love of his life just
2 days later. Talk about LUCK!

Ahhh. Ok I understand now. Thank you for info.:slight_smile:

Given your configuration, I’d say no. I have an older HP laptop with GEForce 6xxx (can’t remember the exact model) and a single-core Turion, oS 11.2 + KDE4.5. There’s a small but perceptible X/CPU usage during scroll, but nothing near 25%. It is most evident in firefox with 3D effects enabled.

This may relate to the nvidia driver, kwin settings, a number of other things, and usually end up being fixed in a later update.

As a workaround does disabling 3D effects (ALT+SHIFT+F12 in KDE) help?

That’s not so anymore. The default configs have been split in various files in /etc/X11/xorg.conf.d. You’ll only have one if you create one - with nvidia-settings, for example.

Regarding nvidia-settings, maybe the Sync to VBlank options can improve your issue with scrolling.

Hello, I have a very similar problem. When I resize a window CPU usage goes up to 80% or more.

My laptop is a Dell Latitude E6410 with an Intel i7 processor, an nVidia Corporation GT218 [NVS 3100M] graphic card and 8GB of RAM.

I am using the proprietary driver from nVidia (version 260.19.44) and desktop effects are enabled. After disabling desktop effects the situation clearly improves.

With OpenSUSE 11.3 everything was working correctly. However, after upgrading to 11.4 I started to notice this problem.

Does anyone know how to fix this problem?

Thank you.

Thank you for helping.
I’ll try to disable desktop effects and I’ll tell you if this solves my problem