Thanks Gerald, I will have to confirm this by wiring up another LCD panel to the expansion headers. It's unfortunate to learn that there is a 16-bit color limitation via HDMI output. On the Raspberry Pi I can issue the "fbset -depth 24" bash command and the HDMI output switches to 24-bit color depth. When I try that command on the BBB it returns with the error "ioctl FBIOPUT_VSCREENINFO: Invalid argument". Only 8 and 16 work as valid bit depths with the BBB.
On Tuesday, November 12, 2013 9:41:30 AM UTC-5, Gerald wrote: > > All 24 bits are available on the expansion headers. I cannot speak for 4D > systems as to how their board is designed and if they support 24b mode or > not. > > HDMI only has 16 bits connected, so you cannot get 24b color on it. > > Gerald > > > > On Tue, Nov 12, 2013 at 8:37 AM, <d...@donduper.com <javascript:>> wrote: > >> I'd like to refine my question to you Gerald... >> >> How can I get 24-bit color with the BBB via either HDMI or LCD (assuming >> the LCD I wire up is a 24/32-bit color panel)? I thought the TI spec >> indicated the BBB could drive true-color but all I can manage to get out of >> the BBB is 16-bit color regardless if I use HDMI or the LCD from 4D Systems. >> >> >> On Monday, November 11, 2013 2:26:02 PM UTC-5, d...@donduper.com wrote: >>> >>> Great, now how does one specify a particular resolution and audio option >>> upon startup? >>> >>> On Saturday, November 2, 2013 4:32:32 PM UTC-4, Gerald wrote: >>>> >>>> 1920x1080@24HZ is the best it can do. >>>> >>>> Gerald >>>> >>>> >>>> >>>> On Sat, Nov 2, 2013 at 1:19 PM, <sri...@gmail.com> wrote: >>>> >>>>> Per above, it seemed that 1920x1080 was possible in the 50-60Hz range >>>>> without audio. Has the community been able to figure out a way to get >>>>> that >>>>> to work? >>>>> Thanks! >>>>> >>>>> >>>>> On Friday, November 1, 2013 3:24:35 AM UTC-4, draw...@gmail.com wrote: >>>>>> >>>>>> People, read your docs… According to the latest System Reference >>>>>> Manual, BBB added support for 1920x1080@24Hz resolution: >>>>>> https://github.com/CircuitCo/BeagleBone-Black/tree/master/BBB_SRM.pdf<https://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&cad=rja&ved=0CFwQFjAD&url=https%3A%2F%2Fgithub.com%2FCircuitCo%2FBeagleBone-Black%2Fblob%2Fmaster%2FBBB_SRM.pdf%3Fraw%3Dtrue&ei=NVVzUrLINaO62AWi9oCgBA&usg=AFQjCNGHgKSW6eN6wCnTOUguqfvWLjtP8Q&sig2=b12eANaFMCe-U0hiVGZLpw&bvm=bv.55819444,d.b2I> >>>>>> >>>>>> >>>>>> 6.10 HDMI Interface >>>>>> >>>>>> The BeagleBone Black has an onboard HDMI framer that converts the LCD >>>>>> signals and audio signals to drive a HDMI monitor. The design uses an >>>>>> NXP TDA19988 >>>>>> HDMI Framer. >>>>>> >>>>>> The following sections provide more detail into the design of this >>>>>> interface. >>>>>> >>>>>> 6.10.1 Supported Resolutions >>>>>> >>>>>> The maximum resolution supported by the BeagleBone Black is 1280x1024 >>>>>> @ 60Hz. Table 9 below shows the supported resolutions. Not all >>>>>> resolutions may work on all monitors, but these have been tested and >>>>>> shown >>>>>> to work on at least one monitor. EDID is supported on the BeagleBone >>>>>> Black. >>>>>> Based on the EDID reading from the connected monitor, the highest >>>>>> compatible resolution is selected. >>>>>> >>>>>> Table 9. HDMI Supported Monitor Resolutions >>>>>> [image: page71image9400] [image: page71image9824] [image: >>>>>> page71image10248] [image: page71image11640] >>>>>> >>>>>> RESOLUTION >>>>>> [image: page71image12800] [image: page71image13416] [image: >>>>>> page71image13576] >>>>>> >>>>>> AUDIO >>>>>> [image: page71image14600] [image: page71image14760] [image: >>>>>> page71image15352] [image: page71image15920] [image: >>>>>> page71image16344] >>>>>> >>>>>> 800 x 600 @60Hz >>>>>> >>>>>> 800 x 600 @56Hz >>>>>> [image: page71image20208] >>>>>> >>>>>> 640 x 480 @75Hz >>>>>> [image: page71image23392] [image: page71image24296] >>>>>> >>>>>> 640 x 480 @60Hz >>>>>> >>>>>> YES >>>>>> >>>>>> 720 x 400 @70Hz >>>>>> [image: page71image29160] >>>>>> >>>>>> 1280 x 1024 @75Hz >>>>>> [image: page71image32416] [image: page71image33184] >>>>>> >>>>>> 1024 x 768 @75Hz >>>>>> [image: page71image35248] [image: page71image36016] >>>>>> >>>>>> 1024 x 768 @70Hz >>>>>> [image: page71image38080] [image: page71image38848] >>>>>> >>>>>> 1024 x 768 @60Hz >>>>>> [image: page71image41264] [image: page71image41744] [image: >>>>>> page71image42632] >>>>>> >>>>>> 800 x 600 @75Hz >>>>>> [image: page71image44912] >>>>>> >>>>>> 800 x 600 @72Hz >>>>>> >>>>>> 720 x 480 @60Hz >>>>>> >>>>>> YES >>>>>> >>>>>> 1280 x 720 @60Hz >>>>>> >>>>>> YES >>>>>> [image: page71image53920] >>>>>> >>>>>> 1920x1080@24Hz >>>>>> >>>>>> YES >>>>>> [image: page71image57840] [image: page71image58304] [image: >>>>>> page71image58784] >>>>>> >>>>>> *NOTE: The updated software image used on the Rev A5B board added >>>>>> support for 1920x1080@24HZ.* >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> On Wednesday, 8 May 2013 03:05:24 UTC-7, ric...@aardvark.com.auwrote: >>>>>>> >>>>>>> The Beagle Board Black system reference manual rev A5.2 says (in >>>>>>> the HDMI section): >>>>>>> >>>>>>> Currently the following resolutions are supported via the software: >>>>>>> 1280 x 1024 >>>>>>> 1440 x 900 >>>>>>> 1024 x 768 >>>>>>> 1280 x 720 >>>>>>> >>>>>>> This is a bit disappointing because we don't have 1920 x 1080... >>>>>>> arguable "full HD". I believe the current Raspberry Pie has more than >>>>>>> 1920 >>>>>>> x 1080. >>>>>>> Is this limit imposed by the hardware of the software? Are we >>>>>>> expecting higher resolutions in future software releases? >>>>>>> >>>>>>> Thnaks >>>>>>> >>>>>>> Richard. >>>>>>> >>>>>>> >>>>>>> >>>>>>> -- >>>>> 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 beagleboard...@googlegroups.com. >>>>> For more options, visit https://groups.google.com/groups/opt_out. >>>>> >>>> >>>> -- >> 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 beagleboard...@googlegroups.com <javascript:>. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
