Bug 25759 - noise (sound not video) when moving cursor or window with a x300 ( rv370 m22 ) integrated card
Summary: noise (sound not video) when moving cursor or window with a x300 ( rv370 m22 ...
Status: RESOLVED INVALID
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/Radeon (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: xf86-video-ati maintainers
QA Contact: Xorg Project Team
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2009-12-22 05:18 UTC by moebius
Modified: 2018-06-12 19:08 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

Attachments
some config files and logs (35.34 KB, text/plain)
2009-12-22 05:22 UTC, moebius 		no flags Details
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Description moebius 2009-12-22 05:18:50 UTC 
Bonjour,

It's a very strange thing that happens.
I own a toshiba m40-140 laptop with a french keyboard  (don't worry, I'm french too !!), and the video card is a m22 x300 (rv370) ati.
I always had to use the propriatory driver to avoid the present problem. But now ati doesn't support anymore this card and in jaunty or karmic ubuntu, there's no more propriatory drivers for my card.

I use the free driver radeon and I get an horrible noise when moving cursor or moving a window or watching some video.
This noise looks like heads of the hard disk moving very fastly. But perhaps is it another thing (can video card make such a noise ?) It's really ugly and make the use of my laptop very unpleasant (very very). The fan noise was enough for me !

I've looked around and find nothing after hours of searching.

I've tried the vesa driver : no noise with it but the screen is not good because the vesa resolutions don't match my screen resolution (1280x800).
I was thinking about some memory swap problem and tried to increase videoram in xorg.conf, but the driver doesn't accept more than 128000 (the xorg log seeems tell that detected memory is around 132000)

In fact it's a very old problem that I can't avoid anymore.
I've tried to correct it a lot and for a long time now....and  I hope that someone can help to solve it.
Comment 1 moebius 2009-12-22 05:22:44 UTC 
Created attachment 32244 [details]
some config files and logs
Comment 2 Alex Deucher 2009-12-22 06:04:00 UTC 
Can you try with KMS?
Comment 3 Roland Scheidegger 2009-12-22 06:36:49 UTC 
It might be possible audio chip picks up some interference. In particular unconnected mic inputs are often subject to this, so try muting audio to see if the sound comes from there. Otherwise I'm not sure where the sound could come from - what you describe doesn't look like it could be "coil whine" (I don't think that would happen with these low power mobile chips anyway).
Comment 4 moebius 2009-12-22 09:39:29 UTC 
(In reply to comment #2)
> Can you try with KMS?
> 

I don't know what is kms.....neither how to do to try with......I'm going to see around but if you can tell me exactly what to do, it would be nice.

Anyway thank for your help
Comment 5 moebius 2009-12-22 09:41:33 UTC 
(In reply to comment #3)
> It might be possible audio chip picks up some interference. In particular
> unconnected mic inputs are often subject to this, so try muting audio to see if
> the sound comes from there. Otherwise I'm not sure where the sound could come
> from - what you describe doesn't look like it could be "coil whine" (I don't
> think that would happen with these low power mobile chips anyway).
> 

Well, sound is off, the noise doesn't come from speakers.

What is "coil whine" ?

thank for your help
Comment 6 Rafał Miłecki 2009-12-22 10:05:55 UTC 
I noticed that when manually playing with registers some day. However it was newer RV620 and happened on scrolling page in browser.

Do you use reduced backlight? Can you check if backlight level affects noise?
Comment 7 moebius 2009-12-22 10:26:45 UTC 
(In reply to comment #6)
> I noticed that when manually playing with registers some day. However it was
> newer RV620 and happened on scrolling page in browser.
> 
> Do you use reduced backlight? Can you check if backlight level affects noise?
> 

Backlight is another story because the fn buttons don't work ; fortunately, I've found a little prog that do the job in sudo mode.

But changing backlight level don't change noise at all....

cordialement,
Comment 8 moebius 2009-12-26 08:58:12 UTC 
Bonjour,


Today, I've inspected more accurately the computer and removed the hdd plastic cover. Now, I'm sure, the noise doesn't come from the hdd. It seems that it come from the video card itself : I hear clearly that noise come from a part where there is an aperture to let air come in and I suspect this place to be the videocard one.

A video card that make a sound (tic tic tic tic) like heads of a hdd, it's quite strange, isn't it ?

Well, if someone has an idea to get the noise go away.

Strangely, the noise doesn't appear with the vesa driver or with the non-free ati one.......

cordialement,
Comment 9 Alex Deucher 2009-12-26 11:11:32 UTC 
It could be that the sound hw is picking up interference from the pixel clock driving the LVDS.  KMS has spread spectrum support for LVDS that might help.  See this page for more info on trying KMS:
http://wiki.x.org/wiki/radeonBuildHowTo
Comment 10 moebius 2010-01-03 01:18:36 UTC 
Bonjour,


Humm.... I wonder, because speakers are off and noise doesn't come from 
them anyway. There is only two speakers on the top of the computer 
(harman-kardon) and they don't make any noise.

I've looked at KMS with the link you provided, but it seems rather hard 
to get it work ; a lot of things to do, and I'm not very good for that....

Thank you anyway






(In reply to comment #9)
> It could be that the sound hw is picking up interference from the pixel clock
> driving the LVDS.  KMS has spread spectrum support for LVDS that might help. 
> See this page for more info on trying KMS:
> http://wiki.x.org/wiki/radeonBuildHowTo
>
Comment 11 moebius 2010-01-03 01:19:49 UTC 
Bonjour,

I've partially solved  the problem by inserting in xorg.conf the option 
NoAccel : no more noise !!!! (but so long compiz and good morning for 
slow window redraws)
So, after finding that solution,  I've tried XAA accel instead of EXA 
but with noise again.
It's strange because this card is supposed to accept acceleration....
Is it possible to accel a little bit less the hardware to avoid noise ? 
perhaps is it a silly question....

With this new result, does someone has a better idea ?

Thank for your past (and  future) help

Anyway, I'm glad to have obtained this result, even if I want more !


cordialement,
Comment 12 Adam Jackson 2018-06-12 19:08:40 UTC 
Mass closure: This bug has been untouched for more than six years, and is not
obviously still valid. Please reopen this bug or file a new report if you continue to experience issues with current releases.

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