Bug#441181: xserver-xorg-video-ati: does not detect monitor

[Michal Suchanek]

On 14/09/2007, Alex Deucher <alexdeucher at gmail.com> wrote:
> On 9/10/07, Michal Suchanek <hramrach at centrum.cz> wrote:
> > On 07/09/2007, Brice Goglin <Brice.Goglin at ens-lyon.org> wrote:
> > > Debian Live user wrote:
> > > > Package: xserver-xorg-video-ati
> > > > Version: 1:6.6.3-2
> > > > Severity: normal
> > > >
> > > >
> > > > I connected EIZO FlexScan L465 to the vga connector an an DVI+VGA radeon
> > > > 9200 card. The screen is detected but wrong mode is selected.
> > > > Maybe it is a dexconf bug that it sets up the xorg.conf incorrectly.
> > > > However, selecting a mode larger than the panel size seems wrong even if
> > > > the frequncies are specified incorrectly.
> > > >
> > > > 01:00.0 VGA compatible controller: ATI Technologies Inc RV280 [Radeon
> > > > 9200 SE] (rev 01)
> > > >
> > > >
> > >
> > > xserver -xorg-video-ati 1:6.6.3-2 is very old, lots of changes were made
> > > since then, but no new stable version has been released. So there are 2
> > > major release candidates that you could try:
> > >
> > > * 1:6.6.193-1 is the natural successor of 1:6.6.3-2 with several fixes,
> > > it is available from http://people.debian.org/~bgoglin/ati-for-sid/
> > >
> > > * Then the driver got a large rework, especially in the area regarding
> > > monitor/mode detection, with randr-1.2 support. So 1:6.7.192-1 is
> > > available for unstable from
> > > http://snapshot.debian.net/archive/2007/08/05/debian/pool/main/x/xserver-xorg-video-ati/
> > >
> > > Please try with any of these versions.
> >
> > I tried with a Radeon 9250. This time dexconf got the monitor right,
> > it did not include bogus refresh rates and limited the resolution to
> > 1280x1024 by explicitly naming some resolutions in a display
> > subsection.
> >
> > After removing this subsection the problem was the same: a mode larger
> > than the physical resolution was chosen.
> >
> > I tried installing the new driver (looks like only 1:6.7.192-1 is
> > available by now) and this time only the ddc modes were used. However,
> > the log messages do not look too reassuring. The built in modes are
> > rejected because of bad clock/interlace/doublescan, nothing is printed
> > about screen physical resolution.
> >
>
> What seems to be the problem?  The monitor's preferred mode is 1280 by
> 1024 and the physical size is  according to the edid from the monitor:
>
Detects and throws away part of the information would be more precise.
It gets the sync rates and calculates a mode that fits into these but
is larger than physical size.

It sort of works with 6.7.192 (in this setup it does not choose modes
larger than 1280x1024, probably just accidentally) but it crashes on
Radeon 9200, at least in Ubuntu.

https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/139210

Thanks

Michal