Am Samstag, den 15.06.2013, 11:43 +0200 schrieb Thierry Reding:
> On Sat, Jun 15, 2013 at 11:37:46AM +0200, Thomas Meyer wrote:
> > Am Freitag, den 14.06.2013, 23:26 +0200 schrieb Thierry Reding:
> > > On Fri, Jun 14, 2013 at 10:59:00PM +0200, Thomas Meyer wrote:
> > > > Am 14.06.2013 um 22:37 schrieb Thierry Reding <thierry.reding@xxxxxxxxx>:
> > > [...]
> > > > > I think I've seen a similar issue
> > > > > when that's not loaded, in which case DRM will turn off all outputs
> > > > > because there's nothing to display. Alternatively you could try to run
> > > > > an X server using the xf86-video-opentegra or xf86-video-modesetting
> > > > > drivers. That should definitely get you output on HDMI.
> > > >
> > > > I did login blindly on tty2 and started xfce using the open tegra driver,
> > > > but still no hdmi output. I can send you the Xorg log file if you want
> > > > to.
> > >
> > > Yes, Xorg output would be good. Additionally, dmesg output might help.
> > > Don't forget to pass drm.debug=0xf on the kernel command-line.
> > >
> > > > Xfce seems to run correctly, as far as I can see all necessary processes
> > > > are running. The monitor I connect to the hdmi is an dvi monitor using
> > > > an dvi to hdmi adapter, so no sound is connected. But that shouldn't be
> > > > a problem.
> >
> > btw. switching the mode with
> > $ xrandr -d :0 --output HDMI-0 --mode 1680x1050
> >
> > makes the external monitor output the display correctly...
> >
> > also switching to the highest possible resolution works after the first
> > mode switch:
> > $ xrandr -d :0 --output HDMI-0 --mode 1920x1080
>
> So perhaps the default configuration chosen at startup isn't one that
> tegra-drm can properly deal with. Can you provide the output of
>
> $ xrandr --query
>
> run immediately after booting (that is with the default configuration
> before you make it work by setting a 1680x1050 mode).
sorry, I wasn't able to get the infos. xrandr refused to connect to the
X server spawned by lightdm but I don't know why. Maybe some missing
Xauthority or something like that.
But I got these infos, after a fresh boot:
$ fbset -i
mode "1920x1080"
geometry 1920 1080 1920 1080 32
timings 0 0 0 0 0 0 0
accel true
rgba 8/16,8/8,8/0,0/0
endmode
Frame buffer device information:
Name :
Address : 0x1a100000
Size : 8294400
Type : PACKED PIXELS
Visual : TRUECOLOR
XPanStep : 1
YPanStep : 1
YWrapStep : 0
LineLength : 7680
Accelerator : No
$ fbset -i -fb /dev/fb1
mode "1024x768"
geometry 1024 768 1024 768 16
timings 0 0 0 0 0 0 0
accel true
rgba 5/11,6/5,5/0,0/0
endmode
Frame buffer device information:
Name : udldrmfb
Address : 0xe0dbc000
Size : 1572864
Type : PACKED PIXELS
Visual : TRUECOLOR
XPanStep : 1
YPanStep : 1
YWrapStep : 0
LineLength : 2048
Accelerator : No
When I add the boot option "video=HDMI-A-1:1680x1050" I get a working fb
console even while booting up. Later on I can start X manually and then
X switches to 1920x1080 and everything works okay.
>
> Thierry
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