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SubjectRe: lvds downclocking breaks on G45/thinkpad T500
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On Sun, 2009-12-27 at 22:18 +0800, Andres Freund wrote:
> On Sunday 27 December 2009 14:10:55 ykzhao wrote:
> > On Sun, 2009-12-27 at 01:41 +0800, Andres Freund wrote:
> > > On Saturday 26 December 2009 17:49:29 Andres Freund wrote:
> > > > On 2.6.33-rc1 I noticed that the display of my T500 with a G45 reacts
> > > > very slowly (you can see the text appearing) and colors take a time to
> > > > "solidify". I.e. making a white terminal black takes some seconds. ...
> > > > Anything I can do to help analyzing the issue?
> > >
> > > Thats with recent git checkouts of xorg btw, if thats relevant (which I
> > > doubt a bit).
> > >
> > > The missing config is attached now as well.
> >
> > It will be great if you can open a new bug on
> > bugs.freedesktop.org(Product=xorg, component = driver/intel) and attach
> > the following info:
> > 1. add the boot option of "drm.debug=0x06" and attach the output of
> > dmesg.
> > 2. attach the output of "xrandr -q --verbose"
> > 3. attach the vbios.dump, which can be obtained by using the
> > following command:
> > echo 1 > /sys/devices/pci0000:00/0000:00:02.0/rom
> > cat /sys/devices/pci0000:00/0000:00:02.0/rom
> > 4. attach the output of Xorg.0.log
> Is it relevant whether I boot a kernel with the patch really enabled?

I don't know whether it is relevant with my patch. In fact my patch only
checks whether the LVDS downclock is found and then set the
corresponding flag.

Anyway, please open a new bug and I will investigate it.

thanks.
Yakui
>
> Andres



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