linux-kernel - Re: xf86-video-armada via UDL [was: Re: UDL's fbdev doesn't work for user-space apps]

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Message-ID: <c49275d9-6cb3-c6ab-15c8-c18e5a8bc0b0@synopsys.com>
Date:   Tue, 5 Dec 2017 10:39:21 +0000
From:   Jose Abreu <Jose.Abreu@...opsys.com>
To:     Alexey Brodkin <Alexey.Brodkin@...opsys.com>,
        "l.stach@...gutronix.de" <l.stach@...gutronix.de>
CC:     "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "airlied@...il.com" <airlied@...il.com>,
        "airlied@...hat.com" <airlied@...hat.com>,
        "daniel.vetter@...ll.ch" <daniel.vetter@...ll.ch>,
        "linux-snps-arc@...ts.infradead.org" 
        <linux-snps-arc@...ts.infradead.org>
Subject: Re: xf86-video-armada via UDL [was: Re: UDL's fbdev doesn't work for
 user-space apps]

Hi Alexey,

On 04-12-2017 17:29, Alexey Brodkin wrote:
>
> Indeed, in case of kmscube etnaviv is a renderer while UDL
> outputs the picture on the screen.

Thats nice :)

Ok, from your logs I was not able to see anything wrong. X server
does not error exit and Prime seems to be working in DRM ...

Lets try one more thing: Enable all debug in DRM (drm.debug=0x3f)
and try to correlate the log with the actions. i.e.

[boot]
[log]
[x start]
[log]
[xclock start]
[log]
[glmark2-es2 start]
[log]

If that does not give any more info then maybe someone with
better understanding of etnaviv, UDL and X can help (maybe cc X
devel list also ...)

Best Regards,
Jose Miguel Abreu