AMD Radeon 8330 graphics with Trisquel?
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Hi,
I was wondering what is the status of support of the AMD Radeon 8330
chipsets in Trisquel? Are there 100% free open source drivers supporting
3d/acceleration? Are those available for Trisquel?
Thanks for any information, I didn't find anything in previous posts and
several online resources seem outdated.
F.
- --
Fabián Rodríguez - XMPP/Jabber+OTR: name at domain
http://fsf.magicfab.ca
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The open source Radeon drivers require nonfree firmware for
acceleration, so it won't work on free systems. Modesetting often
works, while there are driver bugs that might lead to a black screen or
errors on suspend/resume. I don't know if these problems occur on 8330.
В 17:14 +0100 на 18.02.2014 (вт), Michał Masłowski написа:
> The open source Radeon drivers require nonfree firmware for
> acceleration, so it won't work on free systems. Modesetting often
> works, while there are driver bugs that might lead to a black screen or
> errors on suspend/resume.
Recently I've tested version 3.12 of the Linux kernel on Debian
testing with another card – Radeon HD 6310. It seems completely
useless with free software as the non-free firmware is required for
modesetting. Without modesetting the card starts in vesa mode. For the
little time I had to dedicate to the issue it seemed that the driver
refuses to load at all without the non-free firmware. I found
information on the Internet that there are other such AMD cards. I had
no time to investigate if this is going to be fixed or introduced for
all AMD cards in newer kernels. It might be coincidence with the
unusable nature of Debian testing, but the 6310 is not stable and
usable … no matter the firmware and the mode the kernel starts it in.
My point is that some AMD cards might be unusable at all with free
software even for 2D.
I had a similar issue on Radeon HD4350 (RV710) when the RLC microcode
was introduced. It was later fixed, I used Trisquel and Parabola on
that machine. It's probably worse with newer cards.
Linux-libre has working modesetting for more Radeons than Debian without
firmware: Debian intentionally disables it [0] despite it working on
some cards. While it works on e.g. HD3200 and HD4350, all h-node.org
reports of it working with HD6310 are with Trisquel (one fails on
Parabola), so it's probably due to vesa, not radeon driver.
В 20:17 +0100 на 18.02.2014 (вт), Michał Masłowski написа:
> Linux-libre has working modesetting for more Radeons than Debian without
> firmware: Debian intentionally disables it [0] despite it working on
> some cards.
That is an idea. I'll test it as soon as I have some spare time at
work (where the machine with the card is) to play with it. Thanks!
I was trying to test the software rendering of GNOME Shell in the 3.8
series, because of the lack of free software 3D implementation and
just stumbled upon this which set me back … I don't know decades. :/
The FireGL V5250 in my T60p seems to fall into that category.. I get intermittent crashes with it under the open source drivers, but I don't have the same issues with fglrx on a non-libre kernel. It's really bumming me out, I love this machine, I want to run Trisquel 6 on it and be stable :( Unfortunately I'm not yet skilled enough with hardware issue troubleshooting in GNU/Linux to know where to start trying to fix the problem.
Update: As is often the way for me, right after I complained about the above I thought of something new to try - I updated the kernel to the belenos kernel. So far, no crashes.. I'm hoping that's the end of that!
As far as I'm aware, there is no reverse-engineering effort with AMD GPUs, which means paradoxically that AMD cooperating half-way is even worse for our community than not cooperating at all, like Nvidia does.