Re: [REGRESSION] drm/amd/dc: Add dc display driver (v2)

From: Harry Wentland
Date: Mon Apr 30 2018 - 11:40:58 EST


Replied on the ticket.

If this is about non-functioning LVDS or VGA I'm aware of it and trying to find time to find a good solution.

Harry

On 2018-04-30 11:14 AM, Joseph Salisbury wrote:
> Hi Harry,
>
> A kernel bug report was opened against Ubuntu [0]. After a kernel
> bisect, it was found the following commit introduced the bug:
>
>
> commit 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c
> Author: Harry Wentland <harry.wentland@xxxxxxx>
> Date:ÂÂ Tue Sep 12 15:58:20 2017 -0400
>
> ÂÂÂ drm/amd/dc: Add dc display driver (v2)
>
>
> The regression was introduced as of v4.15-rc1 and still exists in
> current mainline. The commit does not need to be reverted to resolve
> the bug. Disabling the CONFIG_DRM_AMD_DC_PRE_VEGA option makes the bug
> go away.
> ÂÂÂ
> I was hoping to get your feedback, since you are the patch author. Do
> you think gathering any additional data will help diagnose this issue?
> ÂÂÂ
>
> Thanks,
>
> Joe
>
>
> [0] http://pad.lv/1761751
>