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Bug 4404

Summary: [PATCH] Uninitialized KMSDRM fixes
Product: SDL Reporter: Sergey Zhuravlevich <zhurxx>
Component: videoAssignee: Ryan C. Gordon <icculus>
Status: RESOLVED FIXED QA Contact: Sam Lantinga <slouken>
Severity: normal    
Priority: P2 CC: icculus
Version: 2.0.9   
Hardware: ARM   
OS: Linux   
Attachments: [PATCH] Uninitialized KMSDRM fixes

Description Sergey Zhuravlevich 2018-11-30 12:11:41 UTC 
Created attachment 3516 [details]
[PATCH] Uninitialized KMSDRM fixes

On our imx6 based etnaviv platform when CONFIG_DRM_FBDEV_EMULATION is disabled KMSDRM is not initialized by default, thus SDL2 can't use it. The attached patch fixes few things:

    * Search for valid encoder in connector when it doesn't have an
      encoder ID set.

    * Search for valid CRTC in resources and encoder's possible CRTCs
      when encoder doesn't have one set.

    * Select default mode if CRTC doesn't have a valid one.

    * Pick current_mode's W/H/Refresh Rate basing on current and
      valid CRTC mode, not the saved one.
Comment 1 Ryan C. Gordon 2018-12-01 18:09:38 UTC 
This patch is now https://hg.libsdl.org/SDL/rev/2b450a35f471, thanks!

--ryan.