[Letux-kernel] DSI & DPI panels with omapdrm on 4.20-rc

Andreas Kemnade andreas at kemnade.info
Wed Nov 14 20:13:21 CET 2018


On Wed, 14 Nov 2018 17:13:36 +0100
"H. Nikolaus Schaller" <hns at goldelico.com> wrote:

> Hi Andreas,
> 
> > Am 14.11.2018 um 12:19 schrieb Andreas Kemnade <andreas at kemnade.info>:
> > 
> > Hi,
> > 
> > On Wed, 14 Nov 2018 11:42:56 +0100
> > "H. Nikolaus Schaller" <hns at goldelico.com> wrote:
> >   
> >> Hi Tomi,
> >> I now also have a problem with a DPI panel on an OMAP3.
> >>   
> > There used to be  some graphs inconsistency warnings during dtb compile,
> > so maybe they are just now start to harm? So the panel-tpo-td028ttec1
> > is somehow not completely overwritten.  
> 
> Yes, DTC became much more critical...
> 
> It now warns about a bad i2c address if you choose chip at 08 instead of chip at 8 for the DT node...
> 
> Previously we just had a "status = "disabled" in the DT for the tpo panel.
> 
> I have fixed that already by using /delete-node/ but it does not improve
> (except that DTC becomes more happy). So it is not the reason of the problem.
> 
> > I will probably test dpi this evening.  
> 
> Please, so that we have a second check.
> 
one quick check:

xinit gives right half: black
upper left: white (the xterm)
lower left can be controlled with xsetroot -solid xxxx
Displaying some other thing tends to give striper.
It reminds me of something in 4.11.0

Regards,
Andreas
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