On Tue, Jul 14, 2015 at 2:08 PM, Bruce Boyes <[email protected]> wrote: > I just updated several BBB Rev C to Ubuntu 14.04.2 July 08 and managed to > get a simple Flask demo running, which was pretty cool. Apache 2 was also > running and serving the default page. Together, with HTOP, that uses less > than 15% CPU and less than 35 MB RAM. Next up: installing a full LAMP stack > and trying to get some legacy PHP to run. > > I'm using the HDMI output to a variety of monitors, some with HDMI and some > with only DVI (for development), and also some HDMI LCD touchscreens (what > we ultimately want to use in the final product). I don't want a GUI desktop; > rather we will use the HDMI touchscreen as a user-facing interface for a > kiosk and environment control system, all custom programmed to relate to > that. The sytems will be otherwise headless and remotely administered. > > Higher end DVI monitors such as HP ZR24W (1920x1200), or the older HP LP2065 > (1600x1200) synch right up in 1280x1024, so does a 1920x1080 HDMI Acer > H226HQL. A DVI Samsung 710TM, native 1280x1024, mostly won't synch, ever. I > plan to look at the serial connection while booting and see if I can force > it. > > Not all LCD panels synch either. 1280x1024 is not a common resolution, but > 1366x768 is, and so is 1280x800. > > I've been reading the online docs about LCD support, and have bought some > breakouts so I can sniff the EDID coming from the monitor and see if I can > figure out why some work and some don't. > > Would updating to Kernel 4.1 help or should I stay away due to all the > reported 4.1 issues with various peripherals?
You can try... If it doesn't work, it's probally out of range.. > > Is there a kernel version change log? I went to > https://github.com/beagleboard/linux but after some blundering around > looking for something to do with releases I did not find anything. For > example what are the "pm/cpuidle fixes", where can I read about them, and > might the Kernel 4 have some HDMI related improvements? I'm giving it a go, > worst case I can go back to the older kernel... Look at the top commit of every tag: https://github.com/beagleboard/linux/tree/4.1.2-ti-r3 https://github.com/beagleboard/linux/commit/3c34b46918cab4eb5dcc7c42173cb743578dbd23 I post the ti delta: https://github.com/RobertCNelson/ti-linux-kernel/compare/31ae2ddea8e0ef24a8d952d39f47b82c05c51a45...e70ea0c682ff00986715631783d684bee96ffed1 Which gives you the ti changes in every tag.. As we are using: http://git.ti.com/gitweb/?p=ti-linux-kernel/ti-linux-kernel.git;a=shortlog;h=refs/heads/ti-linux-4.1.y You can also follow: https://github.com/RobertCNelson/ti-linux-kernel-dev/commits/ti-linux-4.1.y as we sync up with: http://git.ti.com/gitweb/?p=ti-linux-kernel/ti-linux-kernel.git;a=shortlog;h=refs/heads/ti-linux-4.1.y and include our patches.. Regards, -- Robert Nelson https://rcn-ee.com/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
