Hello Steve Would you try to other HDMI display such as PC monitor.
I suspects two points as follows. * You enabled KMS(such as vc4graphics in MACHINE_FEATURE) * Your display has not EDID. If your HDMI settings in config.txt such as follows. There is a high possibility that your HDMI display does not have EDID. ``` hdmi_group=2 hdmi_mode=87 ``` When your display has not EDID, KMS will fail in initalization. In such case, you have to create EDID file manually. I hope this helps. 2017/03/10 14:43 "Gary Thomas" <g...@mlbassoc.com>: > On 2017-03-10 01:55, Steve Plant wrote: > >> OK, I have spent the last day googling my heart out trying to find the >> Xorg.log file without any luck. >> >> >> The problem is that due to the rpi hanging on boot, the only way I can >> access the SD card to look for the file is place >> it in a USB SD card reader and use my VirtualBox based Debian to "ls" >> directores etc. >> >> Having established that there is no file located at /var/log/Xorg.log >> (there isn't a log directory) but there is a >> symbolic link in the var directory - goes nowhere. >> >> >> After goggling I discovered that the file could also be in the >> ~/.local/share/xorg/Xorg.0.log, however if I try to look >> there I get "permission denied" and cannot seem to get to the root >> directory of the card and I can't find a way around >> this as I'm trying to access this directory through the USB card reader. >> >> >> Looked everywhere with no answers, Is there anyone who could help me >> here?? >> > > /var/log is on a volatile file system (i.e. it does not live on the SD > card) > > If you can get into your board via SSH, you can copy the file and send it > > ------------------------------------------------------------ >> ------------------------------------------------------------ >> *From:* Khem Raj <raj.k...@gmail.com> >> *Sent:* Wednesday, 8 March 2017 5:17 p.m. >> *To:* Steve Plant >> *Cc:* yocto@yoctoproject.org >> *Subject:* Re: [yocto] Raspberry Pi2 Fails to boot into LXDE. >> >> On 17-03-08 12:40:51, Steve Plant wrote: >> >>> Hi All, >>> >>> >>> Very new to all this linux world, and especially Yocto. >>> >>> >>> I'm working on a embedded project at the moment using a raspberry pi2 >>> board. >>> >>> >>> I have used toaster with Morty 2.2 to compile an image >>> using"rpi-basic-image", to this I have added the following bitbake >>> variables: >>> >>> Bitbake variables >>> >>> DISTRO >>> poky >>> DL_DIR >>> /home/steve/poky/downloads >>> IMAGE_FSTYPES >>> ext3 jffs2 tar.bz2 rpi-sdimg >>> IMAGE_INSTALL_append >>> packagegroup-core-x11-base packagegroup-lxde-base connman >>> PACKAGE_CLASSES >>> package_rpm >>> SSTATE_DIR >>> /home/steve/poky/sstate-cache >>> >>> DISABLE_OVERSCAN >>> 1 >>> GPU_MEM_1024 >>> 512 >>> >>> I have dd'ed the image to an SD card increased the sdb2 partition to the >>> max size and powered up the rpi. Everything looks fine to start with, as it >>> displays the four raspberrys in the top left, then the white "Yocto >>> Project" splash screen complete with small blue dot to the side appears, >>> the progress bar moves across to 100 percent, then the screen turns black >>> with a white >>> >> cursor in the middle and it appears to freeze with only a very dim one >> second flash of the "act" led. >> >>> >>> >>> I have then connected the 7" touchscreen and apart from the added >>> multicolored square at the very beginning I get the exact same boot up >>> problem, hangs on the black screen with white cursor (good to see its all >>> resized correctly for the TfT through!!) >>> >>> >>> Before adding the packagegroup-core-x11-base and packagegroup-lxde-base >>> I successfully copied over and ran the rpi-basic-image with no problem, >>> ending up with a usable console. >>> >>> >>> Looking for any help here, I'm thinking I've missed adding a package, or >>> some type of local.conf instruction. any suggestions would be >>> appreciated............. >>> >> >> Can you send the content of /var/log/Xorg.log file ? >> > > > -- > ------------------------------------------------------------ > Gary Thomas | Consulting for the > MLB Associates | Embedded world > ------------------------------------------------------------ > -- > _______________________________________________ > yocto mailing list > yocto@yoctoproject.org > https://lists.yoctoproject.org/listinfo/yocto >
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