Re: default resolution on distro boot
Am Dienstag, 24. Januar 2012 schrieb Darac Marjal:
> On Mon, Jan 23, 2012 at 03:47:10PM -0700, mikezb@softhome.net wrote:
> > Given that several Linux distros identify (on boot) my display brand
> > and type, get the size only slightly wrong, but default to a
> > resolution that isn't native and doesn't work correctly, how do I
> > identify just what package, module, or kernel part this "bug" hides
> > in?
> > I'm using a Sharp 32" LCD tv via hdmi cable, and it's identified as a
> > 37". That's not as important as the default resolution, which comes
> > up as 1280x720, but should be 1360x768 (or 1024x768 if wxga isn't
> > doable).
[… EDID …]
> You should get a page of information telling you the manufacturer,
> model etc of the display plus a list of modes it claims to support. It
> MAY BE that native is not in that list (unlikely, but it has
> happened), in which case you'll need to tell X to ignore it's
> autodetected resolution and give it a modeline, just like in the old
> days :)
For getting modelines try cvt or gtf:
martin@merkaba:~> cvt 1920 1080 60
# 1920x1080 59.96 Hz (CVT 2.07M9) hsync: 67.16 kHz; pclk: 173.00 MHz
Modeline "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088
1120 -hsync +vsync
martin@merkaba:~> gtf 1280 1024 60
# 1280x1024 @ 60.00 Hz (GTF) hsync: 63.60 kHz; pclk: 108.88 MHz
Modeline "1280x1024_60.00" 108.88 1280 1360 1496 1712 1024 1025 1028
1060 -HSync +Vsync
--
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7
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