On Thu, 2015-06-18 at 08:54 +0100, Ryan Harkin wrote:
> Hi Joao,
> 
> Your conclusion is correct.  We currently don't support HDMI on the latest
> mainline kernel, only on the LSK 3.10 kernel.

Shortly after the above was written I finished porting the HDLCD driver
to mainline and it appears to have made it out in the Linaro 2015.06
release based on the 4.1-rc8 kernel:

http://git.linaro.org/kernel/linux-linaro-tracking.git/shortlog/refs/heads/ll_20150619.0


One thing to note about HDLCD support on Juno is that it doesn't work
reliably with most monitors, due to hardware issues I believe. E.g. none
of the four monitors I own work with Juno at the native resolution, but
all work if I force a different resolution on the kernel command-line.
For recent kernels I use

  video=HDMI-A-1:1680x1050@60

and for the 3.10 kernel where the HDMI connection gets given a different
name

  video=DVI-D-1:1680x1050@60

You can actually include both on the commandline and they don't
interfere with each other, which is handy if you swap between 3.10 and
current tip kernels.

-- 
Tixy


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