Mailinglist Archive: opensuse-factory (661 mails)

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Re: [opensuse-factory] The Future of SaX2
  • From: Stefan Dirsch <sndirsch@xxxxxxx>
  • Date: Sat, 12 Dec 2009 14:34:09 +0100
  • Message-id: <20091212133409.GA14714@xxxxxxx>
On Wed, Dec 02, 2009 at 10:14:35AM +0100, Will Stephenson wrote:
On Tuesday 01 December 2009 23:20:06 Clayton wrote:
However, if sax2 wasn't used from the beginning, there would be no
static configuration for the better monitor, X would automatically
determine the (probably) right settings instead. And if you change
the monitor, X simply picks fresh settings appropriate for the new
monitor.

Of course there are probably corner cases where the settings picked by X
aren't optimal. I guess the argument is that in these *specific* cases,
it should be possible to hand-tune the configuration using the existing
GUI tools, and that cases where manual configuration change is necessary
are rare enough for that to be a sufficient solution.

I have to say here that the auto tools are working VERY well for me on
11.2. I've tried various monitors, and even a projector (some call
them beamers), and it got it right every time. When I wanted to
adjust the auto selected resolution to something different, I just had
to use the Display settings in the KDE4 Configure Desktop and I could
select alternate resolutions. I've even had the case where a game
crashed and left the desktop at a low resolution... setting it back to
the correct resolution wasn't hard at all.

I do have one more acid test for it though :-P My LCD TV which in
theory can run at high resolutions... 1900x1040 or something like
that, but sax2 could never configure higher than 1024x768 no matter
what I did with it. Maybe I'll try it this coming weekend.

I have a similar experience when using my external digital monitors via the
VGA port of my X60 (i945GM). xrandr and the GUI tools never report the
native
screen resolutions until I tell xrandr about it with gtf, --newmode and --
addmode.

Is there an established way to troubleshoot this?

Is it a bug in...

a) my monitors (no EDID?)

b) the intel driver?

c) Xorg?

Is it my fault because xrandr can't detect monitor resolution when using the
external monitor?

Most likely a driver issue.

Is it http://bugzilla.kernel.org/show_bug.cgi?id=14176 ?

Unlikely unless you already use KMS, i.e. you load i915 module with option
"modeset=1" ("i915.modeset=1" as boot option).

CU,
Stefan

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