[meta-intel] Valleyisland graphics in Dora

Fri Apr 4 02:58:53 PDT 2014

Hi,

For rt-kernel support, we will seriously consider about enabling the feature, please stay tuned for more features in the coming releases.

About removing unwanted kernel configs, you can do the same as what you did to add configs. In your config files, use "# CONFIG_IGB is not set" and this can help you to turn off the configs.
FYI, this is not a proper way. This is meant for your own development. 
The kernel configs are set in linux-yocto-3.X meta branch. The configurations that we set are boot tested and undergone sanity tests in order to ensure our device drivers work for all. 
Since this removal of configs is specified to your case, you own the responsibility to maintain such customization locally.

Thank you.

> -----Original Message-----
> From: Keskinarkaus, Teemu [mailto:Teemu.Keskinarkaus at Maximatecc.com]
> Sent: 04 April, 2014 5:22 PM
> To: Chang, Rebecca Swee Fun; 'IGI/Falk Bauer'
> Cc: meta-intel at yoctoproject.org
> Subject: RE: Valleyisland graphics in Dora
> 
> Hi,
> 
> I can confirm this that it works. I had too old kernel version in my system. I
> updated it to 3.10.35(including the git hashes) and now the accelerated
> graphics works and I don't have that error anymore that I had before and also
> Intel-driver works on Xorg.
> 
> This brings me to another problem I encountered while updating the meta-
> intel.
> 
> We are using rt-kernel in our product and it seems that valleyisland - layer
> has only support for normal kernel. Is the rt-kernel support coming or should
> I switch to master-version to get that?
> 
> I tried updating my rt-kernel recipes to be used with new kernel version and
> valleyisland, but even though I changed the KBRANCH to
> "standard/preempt-rt/base" and updated the git hashes the compilation fails.
> It seems that the configuration of the kernel doesn't go properly and
> valleyisland-32 - kernel is configured for 64-bit etc.  I'm guessing that the
> kernel is missing the support for valleyisland-32?
> 
> One other thing regarding the configurations too. I'm not sure  if this is more
> of generic poky stuff or meta-intel, but feel free to answer if you wish. How
> is the kernel configuration going now? I mean I have those pieces of
> configuration files that has one or more config-options (Like CONFIG_IGB=y)
> and then I define them in recipe as SRC_URI and they 'just work'. That works
> when needing to add something, but how do I remove some configurations
> that I don't need/want? Ie. which is the proper way to do this? I couldn't find
> any proper documentation of this or I've missed something.
> 
> Teemu Keskinarkaus
> Software system engineer
> 
> maximatecc - Humans in control
> 
> 
> > -----Original Message-----
> > From: Chang, Rebecca Swee Fun
> > [mailto:rebecca.swee.fun.chang at intel.com]
> > Sent: 4. huhtikuuta 2014 4:03
> > To: 'IGI/Falk Bauer'; Keskinarkaus, Teemu
> > Cc: meta-intel at yoctoproject.org
> > Subject: RE: Valleyisland graphics in Dora
> >
> > Hi both,
> >
> > Based on your descriptions about the problem, I can confirm that I do
> > not see the issue on my side with the latest Dora branch meta-valleyisland
> recipes.
> > I've tested glxgears and got the glxinfo from Bayley Bay CRB and also
> > Valley Island Dev Kit. I'm building my image with
> > LICENSE_FLAGS_WHITELIST = "commercial" and also the
> > EXTRA_MACHINE_FEATURES = "tools-testapps" for testing purposes. I do
> not recommend to change the branch to standard/ltsi.
> > Standard/base has sufficient backport support for Baytrail for the
> > time being and we are working on to add more. You may go to bugzilla
> > to log down the problem you've seen and provide more information for us
> to look into it. Thanks.
> >
> > Rebecca
> >
> >
> > > -----Original Message-----
> > > From: meta-intel-bounces at yoctoproject.org [mailto:meta-intel-
> > > bounces at yoctoproject.org] On Behalf Of IGI/Falk Bauer
> > > Sent: 03 April, 2014 9:30 PM
> > > To: Keskinarkaus, Teemu
> > > Cc: meta-intel at yoctoproject.org
> > > Subject: Re: [meta-intel] Valleyisland graphics in Dora
> > >
> > > Teemu,
> > > i had similar problems a few days ago with our E3825 based hardware.
> > > The most important thing is that you switched to the ltsi kernel
> > > where the Bay Trail support is backported from newer kernel
> > > versions. Bay Trail support was introduced from version 3.11 i think.
> > > You have to look for the following message in the kernel message buffer:
> > > [drm:i915_pci_probe] *ERROR* Preliminary hardware support disabled
> > > This means that the device file /dev/dri/card0 is not created and so
> > > the intel driver says that the device is not found. This message
> > > appears if you use the standard/base kernel version in yocto.
> > >
> > > To switch to the ltsi kernel you have to set the following statement
> > > in the
> > > meta-isg/meta-valleyisland/recipes-kernel/linux/linux-
> yocto_3.10.bbappend:
> > > KBRANCH_valleyisland-32 = "standard/ltsi"
> > > SRCREV is also changed to the commit id for the tagged version of ltsi
> 3.10.32:
> > > SRCREV_machine_valleyisland-32 =
> > > "78afd3095c9b37efbbfbfdc25eb3833ef3c6a718"
> > >
> > > Yet I do not know how to manage such changes in a layer overlay. I
> > > have directly hacked the bbappend file currently.
> > >
> > > Hope this is of help for you.
> > >
> > > Falk
> > >
> > >
> > > ------------------------------------------------------
> > > IGI - Ingenieur-Gesellschaft fuer Interfaces mbH Dipl.-Ing. Falk
> > > Bauer Applications Engineer Langenauer Str. 46
> > > 57223 Kreuztal, Germany
> > > Tel.: +49 2732 5525 0
> > > Fax: +49 2732 5525 25
> > > E-mail: f.bauer at igi-systems.com
> > > Internet: www.igi-systems.com
> > > -----------------------------------------------------------Ursprüngl
> > > ic
> > > he Nachricht-----
> > > Von: meta-intel-bounces at yoctoproject.org [mailto:meta-intel-
> > > bounces at yoctoproject.org] Im Auftrag von Keskinarkaus, Teemu
> > > Gesendet: Donnerstag, 3. April 2014 13:04
> > > An: meta-intel at yoctoproject.org
> > > Betreff: [meta-intel] Valleyisland graphics in Dora
> > >
> > > Hi,
> > >
> > > I noticed that Dora branch has also finally got its Valleyisland
> > > support so I downloaded latest Dora-branch of meta-intel and also
> > > updated Dora-branch of Poky.
> > >
> > > I then rebuild my own image of it and it booted ok. The thing is
> > > that when I try to use any gl applications (for example glxinfo or
> > > glxgears) I get the following error:
> > >
> > > sh-4.2# glxinfo
> > > name of display: :0.0
> > > Error: couldn't find RGB GLX visual or fbconfig
> > > Error: couldn't find RGB GLX visual or fbconfig
> > >
> > > What am I missing or is there a bug somewhere?
> > >
> > > I also have to use Vesa-driver for Xorg and not Intel driver. If I
> > > try to use Intel driver it says device not found. Any idea what
> > > might cause that? I thought that the Intel driver should support
> > > that HW with acceleration? I think Vesa- driver doesn't support
> > > acceleration or doe it? The HW I use have beta version of BIOS so
> > > could that be the display part of the BIOS is missing some display
> > > things or is that
> > bug/configuration issue in software?
> > >
> > > I'm running Yocto on E3826 HW.
> > >
> > > Teemu Keskinarkaus
> > > Software system engineer
> > >
> > > maximatecc - Humans in control
> > >
> > >
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