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Old 04-30-2011, 01:08 AM
Jonathan Nieder
 
Default Bug#624549: every 10s I get " *ERROR* EDID checksum is invalid ..."

forcemerge 624549 624486 622993
quit

Lisandro Damián Nicanor Pérez Meyer wrote:

> With a dual screen setup. Not so long ago (less than a week) both monitors
> (ViewSonic VG2021wm) were working fine. Somehow the monitor connected to the
> DVI port started not being detected correctly on boot (wrong edid?). Dmesg
> shows:

Thanks. Could you try the patch from

https://bugs.freedesktop.org/show_bug.cgi?id=27708#c7

and see what happens when booting with the drm.edid_strict=0 option?



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Old 04-30-2011, 01:14 AM
Lisandro Damián Nicanor Pérez Meyer
 
Default Bug#624549: every 10s I get " *ERROR* EDID checksum is invalid ..."

On Vie 29 Abr 2011 22:08:09 Jonathan Nieder escribió:
> forcemerge 624549 624486 622993
> quit
>
> Lisandro Damián Nicanor Pérez Meyer wrote:
> > With a dual screen setup. Not so long ago (less than a week) both
> > monitors (ViewSonic VG2021wm) were working fine. Somehow the monitor
> > connected to the DVI port started not being detected correctly on boot
> > (wrong edid?). Dmesg
>
> > shows:
> Thanks. Could you try the patch from
>
> https://bugs.freedesktop.org/show_bug.cgi?id=27708#c7
>
> and see what happens when booting with the drm.edid_strict=0 option?

Sure! Just out of ignorance: do I have to compile the complete kernel again or
there is a way around this?

Kinds regards, Lisandro.

--
<des> lo que conseguís != lo que buscás
<des> por regla general
<des> lo importante es que:
(lo que buscas - lo que conseguís)/lo que buscas ~= 1

Lisandro Damián Nicanor Pérez Meyer
http://perezmeyer.com.ar/
http://perezmeyer.blogspot.com/
 
Old 04-30-2011, 01:19 AM
Jonathan Nieder
 
Default Bug#624549: every 10s I get " *ERROR* EDID checksum is invalid ..."

Lisandro Damián Nicanor Pérez Meyer wrote:
> On Vie 29 Abr 2011 22:08:09 Jonathan Nieder escribió:

>> Thanks. Could you try the patch from
>>
>> https://bugs.freedesktop.org/show_bug.cgi?id=27708#c7
>>
>> and see what happens when booting with the drm.edid_strict=0 option?
>
> Sure! Just out of ignorance: do I have to compile the complete kernel again or
> there is a way around this?

A recompile is the only way I know, I'm afraid (but I'd be happy if
others can correct me).

The good news is that nowadays the kernel provides a "make deb-pkg"
rule that does not require running "make clean" between compiles. So
if there are any other experiments you want to run later, they can be
fast.

[1] explains the process in detail.

Sorry,
Jonathan

[1] http://kernel-handbook.alioth.debian.org/ch-common-tasks.html#s-common-building



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Old 04-30-2011, 01:24 AM
Lisandro Damián Nicanor Pérez Meyer
 
Default Bug#624549: every 10s I get " *ERROR* EDID checksum is invalid ..."

On Vie 29 Abr 2011 22:19:41 Jonathan Nieder escribió:
[snip]
> A recompile is the only way I know, I'm afraid (but I'd be happy if
> others can correct me).
>
> The good news is that nowadays the kernel provides a "make deb-pkg"
> rule that does not require running "make clean" between compiles. So
> if there are any other experiments you want to run later, they can be
> fast.
>
> [1] explains the process in detail.

Nice, thanks

> Sorry,
> Jonathan

There's nothing to be sorry about... Let's try to get that bug ironed out ;-)

--
6: Cual es el boton del mouse que permite acceder a las acciones mas
comunes del manejo de archivos
* Depende el tipo de accion mas comun
Damian Nadales
http://mx.grulic.org.ar/lurker/message/20080307.141449.a70fb2fc.es.html

Lisandro Damián Nicanor Pérez Meyer
http://perezmeyer.com.ar/
http://perezmeyer.blogspot.com/
 
Old 04-30-2011, 02:59 AM
Lisandro Damián Nicanor Pérez Meyer
 
Default Bug#624549: every 10s I get " *ERROR* EDID checksum is invalid ..."

On Vie 29 Abr 2011 22:08:09 Jonathan Nieder escribió:
[snip]
> Thanks. Could you try the patch from
>
> https://bugs.freedesktop.org/show_bug.cgi?id=27708#c7
>
> and see what happens when booting with the drm.edid_strict=0 option?

The patch works perfectly, so at least I have a workaround :-) Thank you!

Now the question is why the DVI port gets a corrupt EDID while the VGA port
gets it right. Or maybe the code processing the EDID of the DVI port is wrong?

Don't heasitate in contacting me if I can be of any further help.

Kinds regards, Lisandro.

--
A proprietary undocumented text format as the de facto standard
-- and that's what .doc is -- is a shame for all parties involved.
It's like using a special patented ink that can only be read with
special patented sun glasses. Who would want to use that for all
their scientific, private and business documents? Probably nobody.
Why they do so with computers is beyond me.
Matthias Ettrich, founder of the KDE project.
http://www.efytimes.com/efytimes/25412/news.htm

Lisandro Damián Nicanor Pérez Meyer
http://perezmeyer.com.ar/
http://perezmeyer.blogspot.com/
 

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