Mailinglist Archive: opensuse-bugs (4669 mails)

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[Bug 623250] external screen resolution always set to 1024x768 (should be 1280x1024) after kde login
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Thu, 2 Sep 2010 13:03:07 +0000
  • Message-id: <20100902130307.6C33924551D@xxxxxxxxxxxxxxxxxxxxxx>

--- Comment #12 from Carlos Mafra <crmafra@xxxxxxxxx> 2010-09-02 13:03:06 UTC
(In reply to comment #11)
(In reply to comment #10)
My laptop has 1280x800 and I use two different external monitors,
one at my home with 1680x1050 and the other at the institute with
1920x1200. And for _both_ the Xserver default is useless and it makes
no sense.

Hey, it's just the login screen (xdm, gdm, kdm), which shows this resolution.
Imagine the external 1920x1200 monitor is turned off, but still connected (you
forgot about that or even don't know that). The displaymanager will likely
optimize everything for the big external screen and you can't reach any longer
the gdm panel or even user/password text field. We had such bug reports in the
past. No kidding! We really need a safe setup to avoid such situations.

You are right. I hadn't thought about that, sorry.

But that also points out a deficiency in xorg, IHMO. Why can't we have
_both_ screens showing the same things at their native resolutions?
That's what the kernel seems to do while booting.

I don't know the details, but from my observation it seems there is
a huge opportunity to improvement here.

So is there no hope for me to get the resolutions correct in a flicker-free
boot process? The kernel got it right already, that's what disturbs me.
When xorg loads it screws up the resolutions which the kernel thought were
good, and I thought the point with the kernel mode setting was to avoid
this resolution changes from boot.

Good point, but not everybody is using more than one monitor with different

Yeah, so I can wait till that becomes the standard or if some xorg
hacker has the same problem :-)

But from my user standpoint the kernel does a much better job than xorg
now. During boot I get both screens working nicely together, each one
at their native resolution.

So I wonder why xorg can't do that too. In the above case you mention,
there would be no problem because the laptop screen would be working
with native resolution too.

So I am sorry to write all this, but as things stand now they don't look
like they make sense. I fear that I will have to patch the xserver myself
and use it instead, but that is painful and it will go away once I move to
opensuse 11.4 etc.

Your decision of course, which we need to accept. We try the best to make most
users happy, which obviously doesn't work out for everybody. That's the way it

Ok, thanks a lot. I felt out of the "most users" set, but hey, that's OK
too. I will use my freedom to modify the sources etc once I have the time.
I was simply hoping that this bug could be solved by other means.

Also I'm not sure why you're discussing this now in this bugreport. IMHO it
belongs to Bug #537488.

Heh, right. But here is the bug where the conversation is, and I don't
know how to reply to your present comment and make it appear in the
other bug report.

But I want to thank you. You made it possible for me to try
to find my own best solution. That's what I like about open source
to begin with! So all is fine, really.

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