[gentoo-user] Do you see circle? I see ellipse

[gentoo-user] Do you see circle? I see ellipse

[Andrew Gaydenko]

Hi!

Some time ago I used GeForce card and was able (with own ModeLine
in xorg.conf) to set 1280x960 mode at 83Hz (with both 'nv' and 'nvidia'
drivers).

After migrating to another hardware I use integrated to motherboard
video Intel DRM x3000 (motherboard is ASUS P5B-VM). 'i810' driver is
in use.

Problem 1.

When my old ModeLine is in use, I see strange (shifted) desktop fragment,
mouse pointer is not in sync with desktop, horizontal refresh is 65Hz and
so on.

Problem 2.

OK, I need to work, so I decided to use 1280x1024 at 75 Hz. All works fine
except for graphics which has wrong scale: circle height is less than must
be. I have played with monitor sizes in xorg.conf - only fonts rendering
changes (and DPI has also different values in xorg log file in accordance
with monitor sizes).

I use KDE.
Where to dig in? Please, point me to circles! :-)


Andrew
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Re: [gentoo-user] Do you see circle? I see ellipse

[Hemmann, Volker Armin]

On Saturday 30 December 2006 18:18, Andrew Gaydenko wrote:
> Hi!
>
> Some time ago I used GeForce card and was able (with own ModeLine
> in xorg.conf) to set 1280x960 mode at 83Hz (with both 'nv' and 'nvidia'
> drivers).
>
> After migrating to another hardware I use integrated to motherboard
> video Intel DRM x3000 (motherboard is ASUS P5B-VM). 'i810' driver is
> in use.
>
> Problem 1.
>
> When my old ModeLine is in use, I see strange (shifted) desktop fragment,
> mouse pointer is not in sync with desktop, horizontal refresh is 65Hz and
> so on.
>

so make a new one. Or try without modelines.

> Problem 2.
>
> OK, I need to work, so I decided to use 1280x1024 at 75 Hz. All works fine
> except for graphics which has wrong scale: circle height is less than must
> be. I have played with monitor sizes in xorg.conf - only fonts rendering
> changes (and DPI has also different values in xorg log file in accordance
> with monitor sizes).

1280x1024 is not 4:3. So there is nothing you can do on a 4:3 sized monitor. 
Go back to 1280x960. 
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Re: [gentoo-user] Do you see circle? I see ellipse

[Andrew Gaydenko]

Without modelines xorg selects 1280x1024 mode.

Well, I have played with 'videogen', tried plenty of different params
without any success. Are there other similar utils which can help here?

Is the driver (i810) known to do work at 1280x960?

1280x1024 is one of the most spreaded mode, I think. Does it mean millions
PC users see ellipses instead of circles? :-)

======= On Saturday 30 December 2006 21:21, Hemmann, Volker Armin wrote: =======
...
> Problem 1.
>
> When my old ModeLine is in use, I see strange (shifted) desktop fragment,
> mouse pointer is not in sync with desktop, horizontal refresh is 65Hz and
> so on.
>

so make a new one. Or try without modelines.

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Re: [gentoo-user] Do you see circle? I see ellipse

[Hemmann, Volker Armin]

On Saturday 30 December 2006 19:38, Andrew Gaydenko wrote:
> Without modelines xorg selects 1280x1024 mode.
>
> Well, I have played with 'videogen', tried plenty of different params
> without any success. Are there other similar utils which can help here?
>
> Is the driver (i810) known to do work at 1280x960?
>
> 1280x1024 is one of the most spreaded mode, I think. Does it mean millions
> PC users see ellipses instead of circles? :-)
>

yes, or they have monitors who are built for that resolution, like countless 
tft displays ;)

I have not used modelines in years. Monitor attached, max freqs set in 
xorg.conf, loading ddc and set 1280x960 as default resolution. But I am using 
nvidia ;)
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Re: [gentoo-user] Do you see circle? I see ellipse

[Andrew Gaydenko]

Aha... May be ddc submodule is more clever than it needed? :-) Is it
possible to prevent the submodule loading? 'man xorg.conf' has nothing
about 'ddc'. I have looked at xorg log from old case (when my modeline
worked fine). There isn't anything about ddc. Currently the submodule
is under using.

======= On Sunday 31 December 2006 00:38, Hemmann, Volker Armin wrote: =======
... loading ddc ...
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Re: [gentoo-user] Do you see circle? I see ellipse

[T.G. Reaper]

> On Saturday 30 December 2006 19:38, Andrew Gaydenko wrote:
>> Without modelines xorg selects 1280x1024 mode.
>>
>> Well, I have played with 'videogen', tried plenty of different params
>> without any success. Are there other similar utils which can help here?
>>
>> Is the driver (i810) known to do work at 1280x960?
>>
>> 1280x1024 is one of the most spreaded mode, I think. Does it mean 
>> millions
>> PC users see ellipses instead of circles? :-)
>>

This isn't actually a Gentoo or even a hardware issue, what you describe is 
exactly what should be expected. The issue is that most CRT, and many LCD 
monitors are designed to display a "4 by 3" aspect ratio, the actual pixel 
elements that make up the phyiscal surface of the display are actually this 
size . 1280x960 IS 4:3 (1280/4 = 960/3)  1280x1024 is NOT 4:3 (1280/4 != 
1024/3). If you created something that generated circles in an environment 
that was NOT 4:3, you can't expect it to also generate circles in an 
environment that IS 4:3, and vice versa.

-- 
HTH
Bob Young 

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Re: [gentoo-user] Do you see circle? I see ellipse

[Hemmann, Volker Armin]

On Saturday 30 December 2006 23:07, Andrew Gaydenko wrote:
> Aha... May be ddc submodule is more clever than it needed? :-) Is it
> possible to prevent the submodule loading? 'man xorg.conf' has nothing
> about 'ddc'. I have looked at xorg log from old case (when my modeline
> worked fine). There isn't anything about ddc. Currently the submodule
> is under using.

check for driver options. There are some for nvidia user, but I don't know any 
intel options - never used intel graphics.
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Re: [gentoo-user] Do you see circle? I see ellipse

[Andrew Gaydenko]

Have found how and disabled ddc. Unfortunately, driver doesn't like
my modeline: https://bugs.freedesktop.org/show_bug.cgi?id=643
Will wait... and will live with ellipses :-)

Thanks for your compassion!

======= On Sunday 31 December 2006 01:14, Hemmann, Volker Armin wrote: =======
...

check for driver options. There are some for nvidia user, but I don't know any 
intel options - never used intel graphics.
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