[oi-dev] [developer] Updated Graphics DRM support for OI

[Yuri Pankov]

On Sat, 3 Dec 2016 20:09:08 +0300, Yuri Pankov wrote:
> On Sat, 3 Dec 2016 09:01:02 -0800 (PST), Randyf wrote:
>>
>>
>> On Sat, 3 Dec 2016, Yuri Pankov wrote:
>>
>>> On Sun, 27 Nov 2016 11:33:47 -0500, Gordon Ross wrote:
>>>> We have some new graphics direct rendering manager (DRM) code to
>>>> announce for OpenIndiana/hipster.  This version should work better
>>>> on systems where hipster currently shows only a black screen.
>>>>
>>>> If you'd like to try out the new DRM code, you can create a
>>>> (temporary) testing boot environment as described here:
>>>> https://www.illumos.org/projects/gfx-drm/wiki/
>>>>  How_to_create_a_BE_running_the_new_DRM_code
>>>>
>>>> Alternatively, you can download and boot the ISO images here:
>>>>   http://dlc-int.openindiana.org/hipster/20161124/
>>>> and see how it works for you without installing.
>>>
>>> Tried the usb image, got the following:
>>>
>>> https://ibin.co/345M98Ie3zyF.jpg
>>>
>>> I'm not sure if older DRM bits work OK as I wasn't able to install anything
>>> other than from this image (due to different issues).
>>>
>>> Xorg log attached (just in case it's useful).
>>>
>>
>> This is an interesting case where some SNB machines (so far, seem to only
>> be Lenovo's) miscalculate FDI timing.
>>
>> At the end of /etc/system, add:
>>
>>      set i915:i915_lane_workaround=0x1
>>
>> and reboot.
>
> That helped, thanks!

But I wonder why it's not needed with the drm version in illumos-gate? 
Looks like a small regression.