> On Nov 13, 2019, at 11:42 AM, John Donnelly <john.p.donnelly@xxxxxxxxxx> wrote:
>
> Hi Thomas: See below
>
>> On Nov 13, 2019, at 2:17 AM, Thomas Zimmermann <tzimmermann@xxxxxxx> wrote:
>>
>> Hi John
>>
>> Am 12.11.19 um 20:13 schrieb John Donnelly:
>>>
>>> In short . I started with :
>>>
>>> git bisect start
>>>
>>> git bisect bad be8454afc50f
>>>
>>> git bisect good fec88ab0af97
>>>
>>> And at the the end of bisects showed this was the offending commit :
>>>
>>> c0a74c732568
>>>
>>> commit c0a74c732568ad347f7b3de281922808dab30504 (refs/bisect/bad)
>>> Author: Jani Nikula <jani.nikula@xxxxxxxxx>
>>> Date: Fri May 24 20:35:22 2019 +0300
>>>
>>> drm/i915: Update DRIVER_DATE to 20190524
>>>
>>> Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
>>>
>>> That does not have any real relevance
>>
>> No, that doesn't look right. The other bad commits you list below also
>> don't seem to be related.
>
>
>
> Thank you for your patience ; I started over and the bisect took to me to this change that certainly reflects the behavior I am seeing :
>
> commit 81da87f63a1edebcf8cbb811d387e353d9f89c7a (refs/bisect/bad)
> Author: Thomas Zimmermann <tzimmermann@xxxxxxx>
> Date: Tue May 21 13:08:29 2019 +0200
>
> drm: Replace drm_gem_vram_push_to_system() with kunmap + unpin
>
> The push-to-system function forces a buffer out of video RAM. This decision
> should rather be made by the memory manager. By replacing the function with
> calls to the kunmap and unpin functions, the buffer's memory becomes available,
> but the buffer remains in VRAM until it's evicted by a pin operation.
>
> This patch replaces the remaining instances of drm_gem_vram_push_to_system()
> in ast and mgag200, and removes the function from DRM.
>
>
> My 1st impression is we need a method that restores the previous behavior that pushes the content to the device .
It appears many of the code changes that were involved in 81da87f63a1 ( above ) have been superseded by :
commit 5d17718997367c435dbe5341a8e270d9b19478d3
Author: Thomas Zimmermann <tzimmermann@xxxxxxx>
Date: Thu Jun 27 10:09:09 2019 +0200
drm/mgag200: Replace struct mga_framebuffer with GEM framebuffer helpers
Are there any other methods (tools ) you could recommend outside of starting Gnome that I could use to get a display activity shown on the console ?
===. snipped ===
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