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[Gnewsense-dev] Re: gNewSense-MIPS and SiliconMotion video driver

From: Daniel Clark
Subject: [Gnewsense-dev] Re: gNewSense-MIPS and SiliconMotion video driver
Date: Thu, 04 Mar 2010 02:33:13 -0500
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20100217 Shredder/3.0.3pre

On 02/28/2010 11:24 PM, Octavio Rossell wrote:
We need to recompile the Silicon Motion Driver into the gNewSense Lemote
Yeelong. There is an existing effort in this [1] but the package appears
to crash or to not work properly in some reeboot situation.

There are actually several projects / hacks to get X working better in various ways on the yeeloong. I believe all of them suffer from various problems, and most are dead ends (code that would never be accepted against upstream and/or against really old versions of X).

Bernie has a pretty comprehensive overview of the situation as it was a month or two ago posted somewhere; I'll try to gather all the mailing list posts about and put summaries/references to them on a wiki page somewhere if you tell me you would find that to be useful.

The most recent effort I've seen has code (patch file) and discussion here:

Or here if that URL is broken:

Any help, advice or information will be helpful.


(a) Check mailing list archives, monitor and keep up to date at least this mailing list, loongson-dev, #gnewsense-dev irc. Email address@hidden and ask for access to address@hidden and its archives.

(b) Get on the proper xorg lists / channels.

(c) If you don't have commit access to xorg version control, be sure to form a relationship with someone who does, and is willing to help you get your changes in. Ditto for the upstream Debian packages, unless you have resources to maintain seperate gNS-specific packages until the end of time, and kk is cool with that.

(d) Make sure any development happens in a publicly available version control repository. Tell at least this list and loongson-dev where that is once anything at all useful is there.

(e) Keep in mind that the goal is to be included in upstream xorg; avoid quick hacks that will never be accepted upstream.

(f) If the people working on this on your end are not good at English, see if you can get someone who is to translate the available doc / list threads to them and vice versa.

(g) You may also want to follow Zhang Le's Gentoo work, it seems to be the most advanced loongson2f-optimized GNU/Linux distribution at the moment (i.e. it's actually all compiled with proper mipsel abi, loongson2f optimization, loongson2f bug workarounds). Also collaborating with people working on OpenBSD/Loongson may be useful; we may disagree politically at times, but we use the same upstream xorg code.

(h) You are probably more likely to get technical help regarding the work on loongson-dev or xorg lists.

(i) Some low level info on the SM hardware is at

(j) If you need to speed up compiles bug me on #gnewsense-dev - I'm close to having an icecc setup done, and should have 10 more 2f boxes to add to the existing 4 in the farm Monday.

Happy Hacking,
Daniel JB Clark |

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