Re: dirty artefacts on bootup

[Dirk Henning Gerdes <mail@dirk-gerdes.de>]

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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