dirty artefacts on bootup

dirty artefacts on bootup

[Dirk Henning Gerdes]

Hi Benjamin,

I'm using the radeon framebuffer driver on a sony-notebook with a radeon
9200 mobile.

During bootup I get dirty artefacts on the screen. 
It's hard to explain. The text first is clear on the screen, but then
there come so many dirty lines on top of it, that you cannot read
anything.
When the xserver is started, the problem is away. switching to a console
with [Alt][CTRL][F1] works perfectly. And then you can read the text
normally.

I have compiled the driver with the debug-option, which brought the
following output.
I'm not quite sur, if this can help, because I got it, when the console
worked after starting X.

[  148.839846] hStart = 1040, hEnd = 1176, hTotal = 1344
[  148.839851] vStart = 770, vEnd = 776, vTotal = 806
[  148.839855] h_total_disp = 0x7f00ync_strt_wid = 0x11040a
[  148.839858] v_total_disp = 0x2ff0325noti login: [  148.839846] hStart
= 1040, hEnd = 1176, hTotal = 1344
[  148.839851] vStart = 770, vEnd = 776, vTotal = 806
[  148.839855] h_total_disp = 0x7f00a7ync_strt_wid = 0x60301
[  148.839860] pixclock = 15384
[  148.839862] freq = 6500

Is there anything I can do to get this dirty lines away?

Thanks for your help 

Dirk





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Re: dirty artefacts on bootup

[Benjamin Herrenschmidt]

On Tue, 2005-12-06 at 13:25 +0100, Dirk Henning Gerdes wrote:
> Hi Benjamin,
> 
> I'm using the radeon framebuffer driver on a sony-notebook with a radeon
> 9200 mobile.
> 
> During bootup I get dirty artefacts on the screen. 
> It's hard to explain. The text first is clear on the screen, but then
> there come so many dirty lines on top of it, that you cannot read
> anything.
> When the xserver is started, the problem is away. switching to a console
> with [Alt][CTRL][F1] works perfectly. And then you can read the text
> normally.
> 
> I have compiled the driver with the debug-option, which brought the
> following output.
> I'm not quite sur, if this can help, because I got it, when the console
> worked after starting X.
> 
> [  148.839846] hStart = 1040, hEnd = 1176, hTotal = 1344
> [  148.839851] vStart = 770, vEnd = 776, vTotal = 806
> [  148.839855] h_total_disp = 0x7f00ync_strt_wid = 0x11040a
> [  148.839858] v_total_disp = 0x2ff0325noti login: [  148.839846] hStart
> = 1040, hEnd = 1176, hTotal = 1344
> [  148.839851] vStart = 770, vEnd = 776, vTotal = 806
> [  148.839855] h_total_disp = 0x7f00a7ync_strt_wid = 0x60301
> [  148.839860] pixclock = 15384
> [  148.839862] freq = 6500
> 
> Is there anything I can do to get this dirty lines away?

Not sure yet. It seems to only happen on machine I have no access to, so
I haven't been able to properly figure it out at this point.

Ben.




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Re: dirty artefacts on bootup

[Dirk Henning Gerdes]

I'm not familiar with the code of the driver, but if you had any hints,
i would like to try them out.
I have the suspicion, that there is something written to the registers
which shouldn't.
Is there any initialising function, that is called, when X starts ?
We then could try to call it earlier during boot up.

Dirk


Am Mittwoch, den 07.12.2005, 08:05 +1100 schrieb Benjamin Herrenschmidt:
> On Tue, 2005-12-06 at 13:25 +0100, Dirk Henning Gerdes wrote:
> > Hi Benjamin,
> > 
> > I'm using the radeon framebuffer driver on a sony-notebook with a radeon
> > 9200 mobile.
> > 
> > During bootup I get dirty artefacts on the screen. 
> > It's hard to explain. The text first is clear on the screen, but then
> > there come so many dirty lines on top of it, that you cannot read
> > anything.
> > When the xserver is started, the problem is away. switching to a console
> > with [Alt][CTRL][F1] works perfectly. And then you can read the text
> > normally.
> > 
> > I have compiled the driver with the debug-option, which brought the
> > following output.
> > I'm not quite sur, if this can help, because I got it, when the console
> > worked after starting X.
> > 
> > [  148.839846] hStart = 1040, hEnd = 1176, hTotal = 1344
> > [  148.839851] vStart = 770, vEnd = 776, vTotal = 806
> > [  148.839855] h_total_disp = 0x7f00ync_strt_wid = 0x11040a
> > [  148.839858] v_total_disp = 0x2ff0325noti login: [  148.839846] hStart
> > = 1040, hEnd = 1176, hTotal = 1344
> > [  148.839851] vStart = 770, vEnd = 776, vTotal = 806
> > [  148.839855] h_total_disp = 0x7f00a7ync_strt_wid = 0x60301
> > [  148.839860] pixclock = 15384
> > [  148.839862] freq = 6500
> > 
> > Is there anything I can do to get this dirty lines away?
> 
> Not sure yet. It seems to only happen on machine I have no access to, so
> I haven't been able to properly figure it out at this point.
> 
> Ben.
> 
> 
> 
-- 
Dirk Henning Gerdes
Bönnersdyk 47
47803 Krefeld

Tel:  02151-755745
      0174-7776640
Mail: mail@dirk-gerdes.de



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