[PATCH] drm, drm/i915/lvds: Honour video= parameter to override LVDS fixed mode

Steven Newbury steve at snewbury.org.uk
Mon Mar 28 14:33:01 PDT 2011

----- Original message -----
> On Wed, 2011-02-09 at 15:01 +0000, Chris Wilson wrote:
> > The LVDS code ignores any connector for which it cannot find a fixed
> > mode (through an EDID, vBIOS tables or the current active mode). Some
> > platforms may include an LVDS header on the board and this may then be
> > partnered with a panel without an EDID. This results in us ignoring the
> > connector and not lighting up the panel.
> Yeah not like this.
> you want to make the command line the *last* option we use, the final
> fallback. LVDS panels have EDID and VBT hardcoded modes for a good
> reason, they don't work with other modes that well. You always want to
> use a scaler on the LVDS panel to do modes not the native mode. So if I
> have a VBT or EDID and you set video= I should get a scaled mode, not
> garbage.
> So what I suspect you really want is to leave video= alone or enhance it
> somehow, or maybe add i915.lvds_native_mode= parameter.

Hi Chris

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