/srv/irclogs.ubuntu.com/2011/04/04/#ubuntu-arm.txt

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zumbihi! if at Debian set a subarch name for Freescale i.MX51, i.e., "mx5" would likely break Ubuntu stuff? could you migrate your code base to new subarch name? http://lists.debian.org/debian-arm/2011/04/msg00009.html15:07
ndecogra_: hi!15:10
ndecogra_: have you had a look at the UCM stuff?15:10
ndecogra_: i am sorry I don't have much time to look into this in details...15:11
ogra_ndec, well, i expected one config file and two PA patches ... somehow it got a lot more, TheMuso will take a look at it tomorrow he promised15:20
ndecogra_: there are several config files, because there are several profiles. if you want to take just 1 profile, that should be doable.15:25
ogra_ndec, well, lets wait for TheMuso, he is our alsa/pulse maintainer, if he has issues i can get him connected with alejandro15:27
ogra_i just didnt expect that amount of patches, i honestly didnt look at them yet waiting for an experts opinion15:28
GrueMasterogra_: None of the omap images are building.  Stuck buildd?15:59
ogra_GrueMaster, yep, lamont pinged already15:59
GrueMasterk15:59
ogra_as long as omap4 is fine ...15:59
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sveinseHow is the performance of X and OMAP3 (w/SGX)?17:19
sveinseWe are currently developing Qt against QWS and are looking for more performance. I suspect X is better optimized and more mainstream and thus has more focus17:19
sveinseOne suggestion is to run X and one full screen Qt app17:20
rsalvetisveinse: with omap3 I'd avoid running with X17:20
rsalvetiwhen possible, as it's not properly integrated17:21
sveinsenot properly integrated = missing dri drivers?17:21
rsalvetisveinse: yes17:21
sveinsealas17:21
rsalveticurrently it's just a hack with some locking with the X11 server to write at the correct place at the framebuffer17:21
sveinseThere are some free desktop SW bundled with the sgx driver. Are they unusable?17:22
sveinseSo X i basically SW redering framebuffer17:22
rsalvetisveinse: it probably works, but not optimal17:23
rsalvetinot sw rendering, but not respecting the x11 dri architecture17:23
rsalvetisveinse: talk with michaedw at #linaro, he's working with omap3 and also creating something with Qt and QWS17:23
rsalvetibut using just the framebuffer, and he's getting quite nice performance values17:24
sveinsersalveti: Thanks, it helps not to have to learn everything for yourself from scratch!17:25
suihkulokkisveinse: look at Qt lighthouse: http://qt.nokia.com/developer/learning/online/talks/developerdays2010/tech-talks/project-lighthouse/17:26
sveinsesuihkulokki: AFAIK the biggest problem is translating the Qt graphics primitives into HW accelerated graphics, as it requires insight into the closed SGX/PowerVR module. Right?17:30
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rsalvetisveinse: nops, you would just use gles normally17:30
rsalvetigenerally you don't need to touch sgx besides normally using gles17:31
rsalvetiI know michaedw did some optimizations for sgx, but don't think he's touching it directly17:31
davidmGrueMaster, you about?17:32
GrueMasteryes17:32
sveinseah, so you use lighthouse to bind Qt primitives and the gles lib from imagem/TI17:32
suihkulokkisveinse: indeed there is nothing about the closed nature you need to care.. the opengl es api is where you work at. the big deal is that traditional qwidgets are painted serially while gpu's are good are doing things parellely17:32
sveinsehmm, I have obviously lots to learn of how the graphics parts are interconnected17:33
suihkulokkisveinse: the video on my link is good start =)17:35
sveinseperhaps a stupid question: could one then make s X driver using the gles to achieve HW accel in X then?17:35
sveinseYes, i will right now, thanks17:35
rsalvetisveinse: well, you could, but generally people are worried only with 2d bits at the xdriver17:37
rsalvetiand for that you could use pvr2d, neon or even other hardware when available17:37
rsalvetito accelerate EXA17:37
rsalvetiand once you have DRI support it should be fine17:37
sveinseGenerally I'm looking for the solution of Qt apps which gives us the most both in respect of performance and with less development effort17:40
sveinsersalveti: BTW: Have you taken a look at 4.03.00.02 ? Anything interesting new stuff here?17:40
sveinse(for OMAP3)17:41
rsalvetisveinse: still need to test that with the xserver, planned for this week17:42
sveinseOne thing though is that it now support active power management in OMAP35x/37x, see http://processors.wiki.ti.com/index.php/RN_4_03_00_0217:43
sveinseNice for mobile / low-power devices17:44
zumbitcl2010rocks17:52
zumbi:P17:52
* rsalveti lunch17:55
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pressHi,20:50
pressI'm an amateur-journalist wanting to write an article about Ubuntu on ARM.20:50
pressWho would be the best person to help me / answer my questions?20:50
pressThought this was a good place to ask...20:50
rsalvetipress: sure, just ask your question20:53
pressOK, my name is Hans BTW.20:53
rsalvetipress: http://irclogs.ubuntu.com/2011/04/01/%23ubuntu-classroom.html#t17:3120:54
pressthnx20:54
rsalvetiwe had one session at ubuntu-classroom with davidm last week, that can also help you answering some questions20:55
pressGonna read that first20:55
rsalvetipress: sure, then just ask later your questions20:57
rsalvetias it's an irc, don't expect them to be answered at the same moment20:58
rsalvetipress: as you're using a web irc, you can check the channel logs later20:58
rsalvetibut we're usually around20:58
pressOK, thanks very much.21:20
pressI'm pretty much a n00b when it comes to ARM/Linux development.21:21
pressSo will read some more 'old' #Ubuntu-ARM logs tomorrow, make up some nice questions and come back later.21:21
rsalvetipress: cool21:23

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