[Intel-gfx] xrandr issue

[Paulo Zanoni]

Hi

When you have this type of question, please always CC our mailing
list, since you're more likely to get a fast answer when using it. And
it also helps documenting all the common problems people have.

2014-08-09 13:31 GMT-03:00 Brayden Williams <redstar504 at gmail.com>:
> Hi Paulo,
>
> I have been desperately trying to get my 3 monitor setup to work with Intel
> graphics in Ubuntu.  After hours of Googling I finally came across your
> comment on this bug report
> (https://bugs.freedesktop.org/show_bug.cgi?id=68485) but I am still having
> trouble getting it working.   Ubuntu gives me the following error:
>
> [    4.700920] [drm:intel_ddi_pll_mode_set] *ERROR* No WRPLLs available!
>
> The output of my xrandr --verbose command can be found at
> https://gist.github.com/redstar504/6b630e3e664d0db6a2f5
>
> It seems like the pixel clock is the same for HDMI1 and HDMI2 so this should
> be working shouldn't it?

Yes, it should be working, but only if you have a Kernel that actually
contains the patch mentioned in the bugzilla. Which Kernel version are
you running?

You could also try to set things manually after you boot:

xrandr --output HDMI1 --mode 0x4a
xrandr --output HDMI2 --mode 0x4a
xrandr --output HDMI3 --mode 0x4a

If your Kernel is old, you could try to use the DP or VGA outputs
instead of using HDMI for every port.

DId you try to use any newer Kernels? If this problem happens with the
latest development or stable Kernels, you should probably open another
bug (or reopen the one you mentioned).

>
> I'd truly appreciate any help you can provide.
>
> Thank You,
> Brayden Williams



-- 
Paulo Zanoni