On Thu, May 8, 2014 at 3:43 PM, Chris Tapp <[email protected]> wrote:
> On 8 May 2014, at 18:52, r10kindsofpeople <[email protected]> > wrote: > > > On Thu, May 8, 2014 at 12:39 PM, Chris Tapp <[email protected]> > wrote: > > Hi John, > > > > On 8 May 2014, at 16:25, r10kindsofpeople <[email protected]> > wrote: > > > > > I'm trying to experiment with the SATO build on a DN2800MT with a VGA > monitor, but can't seem to get going. The binaries from Daisy and > genericX86 get as far as the Yocto progress bar complete, and then go > black. Any quick hints? > > > > Have a look in the README file for the cedartrail BSP. At the bottom you > will find: > > > > Work Around for VGA and LVDS Display issue in PVR driver > > -------------------------------------------------------- > > > > The PVR driver has a issue that for some systems it causes > > it to incorrectly assume that a LVDS display is connected > > while infact a VGA display is connected and Vice Versa. > > If your VGA or LVDS display does not work with > > "cedartrail" MACHINE, then if you have connected a VGA display, > > add the following to the kernel command line: > > > > video=LVDS-1:d video=VGA-1:e > > > > <snip> > > > > I suspect it's this. Watch out if you use HDMI as well - the VGA fix > seems to break HDMI. On my systems the VGA then works, but the HDMI pauses > a lot running the same image! I think you can use similar magic for HDMI > (or did I just take it out?). > > > > > I note also that genericX86 looks like a complete Yocto tree rather > than just BSP layers. Am I right, and are there hints on how to combine > this with a generic Daisy tree for other processors/projects? > > > > > > > Yocto_11_0_0/genericx86-daisy-11.0.0/meta-yocto-bsp/recipes-graphics/xorg-xserver/xserver-xf86-config/genericx86/xorg.conf > is a zero length file. ? > > > > > > John > > > -- > > > _______________________________________________ > > > yocto mailing list > > > [email protected] > > > https://lists.yoctoproject.org/listinfo/yocto > > > > Chris Tapp > > > > [email protected] > > www.keylevel.com > > > > > > > > Chris, > > > > Thanks! What version Yocto are you using? I ask because you suggest I > check the README file for the cedartrail BSP, but I've been unable to FIND > a cedartrail BSP in anything newer than Denzil, and that only by searching > the git trees. genericX86 is said to cover cedartrail, but it does seem, > well, generic, with nothing particularly specific to cedartrail, and much > more than what I'm used to in a Yocto BSP. > > I'm using 'danny' as that's the latest version which includes video > hardware acceleration for the DN2800. > > > At any rate, I'll try what you suggest in terms of the kernel command > line. > > The README says this fixes the issue for the PVR drivers, but I don't > think they're included in later versions. > > If you've still got problems, it may be worth posting to the meta-intel > mailing list as well as that's where Intel BSPs are discussed. > > > Thanks again, > > > > John > > Chris Tapp > > [email protected] > www.keylevel.com > > > > For what it's worth, it seems to do the trick with Daisy. In local.conf APPEND_genericx86 = "video=LVDS-1:d video=VGA-1:e" THANKS! John
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