Bug#462582: xserver-xorg-video-ati: regression, size configuration incredibly broken, on bog-standard display size

[Andreas Mohr <andi@lisas.de>]

Hi,

On Sun, Mar 07, 2010 at 11:03:49AM +0100, Brice Goglin wrote:
> On Fri, Jan 25, 2008 at 09:33:48PM +0100, Andreas Mohr wrote:
> > Package: xserver-xorg-video-ati
> > Version: 1:6.7.197-1
> > Severity: important
> > 
> > Hi,
> > 
> > my 14"(!) VGA-connected 1024x768 _desktop_ LCD was working just fine with my
> > config file on 1:6.6.193, however both 1:6.7.197-1 and
> > 6.7.198~git20080117.6bd510a2 manage to mess up size detection in a
> > spectacularly awful way, it seems (either with or without xorg.conf).
> > 
> > - there are 12 references to 1024x768 resolution in the log (DDC detection
> >   etc.), however it chooses to pick 1280x800 which has never been announced
> >   _anywhere_!
> > - the DPI calculations are not "WAY off" as in another Debian bug report,
> >   they're "rather very extremely off" (147, 145 instead of 89, 92 previously)
> > 
> > The display size detection of 290x210mm seems _correct_ since it matches
> > physical dimensions.
> 
> Do you still have these problems with latest packages in unstable?

[same hardware still]

No, on 1:6.12.3-1 (slightly older testing package) at least,
it does not happen any more both with my usual xorg.conf
and when renaming the file.

It started to work relatively soon thereafter I believe (even though
I didn't realize the exact event since I simply left it un-upgraded for
a while).

BUT, I have bad news now:
Just did an upgrade to 1:6.12.5-1 testing (causing a large bunch of
other xorg stuff to get updated), and directly after having started
1:6.12.3-1, the screen is now quite a LOT darker than before
(in a weird twilight way, no contrast, no brightness, nothing).
Reverting to 6.12.4-2 (the only one readily available) did not help
either. And I DON'T think it's a (very) sudden monitor issue
(the OSD still shows with original colors)

Obviously I'm not too happy about this state of affairs ;)

Any ideas? What should I test?

Thank you very much for your re-inquiry!

Andreas Mohr