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Date:      Mon, 13 Apr 2020 15:41:09 +0200
From:      Andrea Venturoli <ml@netfence.it>
To:        Niclas Zeising <zeising@freebsd.org>, x11@FreeBSD.org
Subject:   Re: Users of x11-drivers/xf86-video-ati-legacy
Message-ID:  <1c29f581-5048-8c1f-195a-6b22f8487163@netfence.it>
In-Reply-To: <dc23b150-39c1-f875-2ee1-d38c919f498d@freebsd.org>
References:  <ef0ba8bc-e029-1918-5747-941fd9a3f2ae@freebsd.org> <16c93a1a-cc60-b9a5-da48-889f48aa6005@netfence.it> <d1133d52-0edd-aeae-afc0-32c4339c99b0@netfence.it> <c36ed3ba-1aad-ad70-1f90-1fa1f9370b59@netfence.it> <9352b468-9f09-ad30-0b9e-acd896cadb17@freebsd.org> <0c34355a-9f91-a966-7e46-aefcd2806fbd@netfence.it> <dc23b150-39c1-f875-2ee1-d38c919f498d@freebsd.org>

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On 2020-04-13 12:45, Niclas Zeising wrote:

> I don't know exactly what makes xf86-video-ati-legacy crash, but if you 
> want to get it working, I think that the best course of action is to 
> move it back to 7.9, and then try to backport just as much as needed to 
> get it to compile with xserver 1.20, but still work on drm-legacy-kmod. 

Thanks for the hint.
I'll eventually try this.
I'd be happier if I got non-legacy drm to work on my card, though.




> Graphics cards, even in the same series, can be quite different, 
> unfortunately.  This is one of the reasons this work is so hard, because 
> even if one adapter in a family works, it does not mean all of them does.
> Looking quickly at wikipedia [1], it looks like the HD4200 card uses the 
> 785G chipset, but HD4250 uses 880G (a generation later, as I understand 
> it), meaning they are probably quite different.  Yes, this is super 
> confusing.

Agree on the basic part.
However, the same Wikipedia page says 785G/880G, but code name is RS880 
for both... yes very confusing.



  bye & Thanks
	av.



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