Raspberry Pi Official touchscreen (+Dual Display) support on GDP11 image

Friedrich, Eugen (ADITG/SW1) efriedrich at de.adit-jv.com
Tue Sep 27 11:29:05 EDT 2016


Hi Jocelyn,

The Weston startup log output might  help to see what is used and available in the DRM level. 

Best regards

Eugen Friedrich
Software Group I (ADITG/SW1)

Tel. +49 5121 49 6921

> -----Original Message-----
> From: Tom Pollard [mailto:tom.pollard at codethink.co.uk]
> Sent: Dienstag, 27. September 2016 15:19
> To: LEHEUP Jocelyn; Friedrich, Eugen (ADITG/SW1); genivi-
> projects at lists.genivi.org; the
> Subject: Re: Raspberry Pi Official touchscreen (+Dual Display) support on
> GDP11 image
> 
> Hi Jocelyn
> 
> On 27/09/16 14:02, LEHEUP Jocelyn wrote:
> > Thanks Friedrich
> >
> >
> >
> > I already had a look to it to mailing list discussion
> > (enivi-ivi-layer-management at lists.genivi.org
> > <mailto:enivi-ivi-layer-management at lists.genivi.org> &
> >  genivi-projects at lists.genivi.org
> > <mailto:genivi-projects at lists.genivi.org>) to support the multi display
> > support
> >
> >
> >
> > I want to avoid any baseline recompilation.
> >
> >
> >
> > So Based on GDP11 image (official release for RPI2 gdp-11-rpi.sdimg.gz
> > <http://docs.projects.genivi.org/gdp_files/v11/GDP11/raspberrypi2/gdp-
> 11-rpi.sdimg.gz>),
> >
> > I have simply modified /etc/xdg/weston/weston.ini
> >
> >
> >
> > To add output for RPI touchscreen
> >
> > #HDMI
> >
> > [output]
> >
> > name=HDMI1
> >
> > mode=1920x1080
> >
> >
> >
> > #Touchscreen
> >
> > [output]
> >
> > name=LVDS1 (or name=DSI1 ?)
> 
> The raspi official touchscreen is DSI-1, and hdmi is HDMI-A-1. Both can
> be enabled / disabled with 'mode=off/on' in the respective output
> subsection.
> 
> Regards,
> 
> Tom Pollard
> 
> >
> > mode=800x480
> >
> >
> >
> > and relaunch weston with drm as backend
> >
> > weston  --backend=drm-backend.so --tty=2
> >
> >
> >
> > but I still see only one screen on LayerControlManager
> >
> > LayerManagerControl get screens
> >
> > 1 Screen(s):
> >
> > - Screen 0 (0x0)
> >
> >
> >
> > So clearly one modification is missing, probably during boottime to load
> > the touchscreen driver
> >
> > Do you have an idea ?
> >
> > Or do I really need to get and recompile the main baseline (and make
> > menuconfig to force DSI touchscreen loading) to get the 2 screens
> >
> >
> >
> > Thanks in advance
> >
> >
> >
> > Regards
> >
> >
> >
> > Jocelyn
> >
> >
> >
> >
> >
> > *De :*Friedrich, Eugen (ADITG/SW1) [mailto:efriedrich at de.adit-jv.com]
> > *Envoyé :* mardi 27 septembre 2016 11:31
> > *À :* LEHEUP Jocelyn <jocelyn.leheup at renault.com>;
> > genivi-projects at lists.genivi.org
> > *Objet :* RE: Raspberry Pi Official touchscreen (+Dual Display) support
> > on GDP11 image
> >
> >
> >
> > Hello Jocelyn,
> >
> >
> >
> > Please follow the discussion on the
> > genivi-ivi-layer-management at lists.genivi.org
> > <mailto:genivi-ivi-layer-management at lists.genivi.org> list about the
> > multi display support
> >
> >
> >
> > I will add you email in my replay
> >
> >
> >
> > Best regards
> >
> > *Eugen Friedrich*
> > Software Group I (ADITG/SW1)
> >
> > Tel. +49 5121 49 6921
> >
> > *From:*genivi-projects [mailto:genivi-projects-bounces at lists.genivi.org]
> > *On Behalf Of *LEHEUP Jocelyn
> > *Sent:* Montag, 26. September 2016 18:33
> > *To:* genivi-projects at lists.genivi.org
> > <mailto:genivi-projects at lists.genivi.org>
> > *Subject:* Raspberry Pi Official touchscreen (+Dual Display) support on
> > GDP11 image
> >
> >
> >
> > Hello
> >
> >
> >
> > I am new with genivi (working as SW architect at Renault)
> >
> >
> >
> > I currently wanted to test the weston IVI shell dual display feature on
> > PI2 (HDMI + RPI2/RPI3 Official touchscreen)
> >
> >
> >
> > Currently I just wanted to get the GDP11 RPI2 official image (currently
> > only GDP11RC1 image available) and modify the Weston.ini and Weston
> > backend accordingly to activate the 2 outputs
> >
> >
> >
> > My questions are :
> >
> > -          Is Raspberry Pi Official touchscreen currently integrated on
> > GDP11RC1 ? planned for GDP11 ? or only available on Main (as mentioned
> > by GDP-206 <https://at.projects.genivi.org/jira/browse/GDP-206>)
> >
> > -          Condidering  Raspberry Pi Official touchscreen driver
> > integrated on GDP11, what are the exact steps to activated the 2
> > displays simultaneously ? (only Weston.ini modifications necessary +
> > Weston reloading with DRM backend) ?
> >
> >
> >
> > Regards
> >
> >
> >
> >
> >
> > *Jocelyn Leheup*
> >
> >
> >
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