| 00:00.20 | ln2 | I know of the 703N. I really like that device actually. Where did you find it for $18? |
| 00:02.34 | ln2 | One project I am interested in is using a USBAsp with V-USB as a cheap USB GPIO extender for devices like the 703N or MK802. It is much slower than native IO but works. But that adds more cost, two locux can be had for the price of one 703N + slow gpio. At the same time wireless is only $4 to add to the Locux. They are very close. |
| 00:04.29 | rm | mkay, not $18, from $21 on Aliexpress |
| 00:04.57 | rm | not sure what's V-USB or USBAsp, but can't you use an MSP430 |
| 00:05.01 | rm | or an arduino |
| 00:05.08 | rm | as GPIO for MK802 |
| 00:05.53 | ln2 | A USBAsp is basically an Atmega8 wired to a USB plug. V-USB is an AVR library that "emulates" USB which means it can interface with USB without an expensive USB converter chip. |
| 00:06.56 | ln2 | So the end result is a $5 pre-built avr board with USB and I think eight usable GPIO pins. |
| 00:07.02 | rm | check http://www.firmata.org/wiki/Main_Page |
| 00:07.47 | ln2 | V-USB uses generic HID profiles. It requires no drivers to be used in any OS. 8) |
| 00:08.09 | ln2 | The cheapest Asp that I know of is available here. http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=21321 |
| 00:08.55 | ln2 | Theoretically you can use that device as a GPIO expander. I haven't found any examples of it being used for that purpose. But I'm about 99% sure you can. |
| 00:11.16 | ln2 | So you are looking at about $26 for a 703N with ~10 GPIO (if you also rewire the LED pins). Of course software GPIO is slow so it depends on your needs. In comparison the Locux has full speed GPIO. Lots of them... |
| 00:11.51 | ln2 | For $12 ($17 with wireless). The competition is very close and pretty much based on the project needs. |
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| 00:19.04 | ln2 | rm: http://hobbyelektronik.org/w/index.php?title=USBLotIO |
| 00:19.50 | ln2 | In that project they use v-usb with an attiny45 as a USB GPIO extender. So the USBAsp would work for sure. You could probably use their firmware. 8) |
| 00:20.56 | ln2 | He also adds a shift register to add more IO (the attiny45 has only 4 available in that configuration). But that isn't an issue with the ASP. |
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| 00:24.24 | L84Supper | someone on the ML mentioned that the i.mx6's are now available through Farnell. Has anyone actually purchased and received any? |
| 00:24.57 | L84Supper | http://uk.farnell.com/freescale-semiconductor/mcimx6u5dvm10ab/mpu-i-mx6-dual-1ghz-624mapbga/dp/2253174 |
| 00:25.18 | L84Supper | Availability: Awaiting Delivery (figures) |
| 00:26.22 | L84Supper | Coming Soon item - register your interest here ... heh, same story for the past year :) |
| 00:26.48 | L84Supper | http://uk.farnell.com/jsp/search/browse.jsp?N=2031+203063&Ntk=gensearch&Ntt=MCIMX6&Ntx=mode+matchallpartial |
| 00:34.24 | ln2 | In case anyone is interested in adding GPIO to ARM devices with USB. http://code.google.com/p/openami/wiki/avrBridge#Requirements |
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| 03:28.00 | L84Supper | http://www.youtube.com/watch?feature=player_embedded&v=S4pvFSG10R8#! OLPC XO Tablet, XO Learning System.... worth watching just to hear her thick accent |
| 03:28.31 | L84Supper | <PROTECTED> |
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| 03:31.19 | L84Supper | another article has the XO-4 as " Marvell Armada PXA2128 dual-core 1.2Ghz 40nm processor" |
| 03:31.45 | L84Supper | http://www.youtube.com/watch?v=Fa5pKmhCgd4 laptop version |
| 03:33.54 | L84Supper | $30 Smile Plug Server "It is available now for $200 from Globalscale Technologies" http://www.youtube.com/watch?feature=player_embedded&v=SSl-AE_v13Q |
| 03:42.45 | WarheadsSE | the $30 goal wasnt for the consumer price, ever. also, idk where they came up with that number, |
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| 04:42.46 | L84Supper | to bad OLPC sold out to Marvell, but at least they hired Giulia |
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| 05:31.52 | sky770 | Anyone knows abt approx. MRP for rk3088/3081 (the upcoming quad) ? |
| 05:32.01 | sky770 | Sampling starts this month |
| 05:32.55 | sky770 | Ahh..no the MRP per se' but approx. $$ range? |
| 05:37.09 | sky770 | zzzzZZZ... :¦ |
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| 12:48.27 | torindel | -.-, 30MB of oops traces after night, all about list corruptions and it was left alone |
| 12:48.46 | torindel | (a10) |
| 12:57.55 | hramrach | once the list is corrupted .. |
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| 13:08.16 | torindel | hramrach: seen that before? looks like that list was somewhere in vma cide |
| 13:08.20 | torindel | code* |
| 13:08.58 | hramrach | I do not wantch my logs too much |
| 13:09.59 | hramrach | zgrep -i oops /var/log/messages* gives nothing |
| 13:10.14 | torindel | i would not notice that if i didnt check logs, as i looked it worked fine, but logs just grep ^^ |
| 13:10.19 | torindel | grow* |
| 13:10.40 | hramrach | so I guess my A10 runs flawlessly unless it locks up on startup |
| 13:11.07 | hramrach | or crashes on kernel start due to alignment error so early it is not logged |
| 13:11.29 | torindel | hramrach: http://bpaste.net/show/74986/ |
| 13:11.36 | torindel | that was first one |
| 13:12.13 | torindel | plus gazilion afterwards called from diffrent places but all using vma_prio_ folks |
| 13:12.15 | hramrach | also I may not have list debugging so the kernel might be happily frobbing corrupted lists all the time |
| 13:13.19 | torindel | guess i'll turn debug back on again, as i mostly turned it off -.- |
| 13:13.37 | hramrach | you never know if you are running into upstream bug which is long fixed but still lurking in the ancient sunxi tree |
| 13:14.19 | torindel | yea -.- |
| 13:14.21 | hramrach | as in if a sunxi driver is not in the backtrace you can probably just forget it |
| 13:14.49 | hramrach | running 3.0 or 3.4? |
| 13:14.54 | torindel | 3.0 |
| 13:14.58 | hramrach | 3.4 here |
| 13:15.23 | torindel | funnier thing orginal lichee android kernel didnt hit that and that thing got debug turned on |
| 13:15.55 | hramrach | the question is how often it gets corrupted |
| 13:16.06 | hramrach | and what you have to do to trigger the issue |
| 13:16.19 | hramrach | possibly some userspace action that nver happens on android |
| 13:16.26 | torindel | as far as i can tell it happened when it was left allone |
| 13:16.39 | torindel | with turned off everything except sshd |
| 13:16.40 | hramrach | cron? |
| 13:16.53 | torindel | nope |
| 13:16.53 | torindel | syslog+sshd |
| 13:17.12 | torindel | and udev |
| 13:17.13 | hramrach | sshd attack? |
| 13:17.24 | torindel | private network |
| 13:17.28 | torindel | so nope |
| 13:18.29 | torindel | add to that wpa_supplicant and dhcpcd and that would be all that was running on it, and it was laying doing nothing |
| 13:21.40 | hramrach | just read some article about Windows crashing when the system is idle and the disk goes to sleep |
| 13:22.15 | hramrach | letting system idle is something that stresses code paths normally unused |
| 13:24.07 | torindel | 3.4 sources have everything ported from 3.0? |
| 13:24.19 | hramrach | should have |
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| 13:24.38 | torindel | i'll compile it later |
| 13:24.41 | torindel | and we'll see |
| 13:25.14 | hramrach | unless you can realiably trigger the corruption it does not say anything |
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| 13:50.59 | torindel | hramrach: yea i know |
| 13:51.18 | torindel | it just that there bug somewhere but not where |
| 13:51.25 | torindel | says* |
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| 14:46.10 | gzamboni | do i have to have x11 to make a csi v4l2 camera sensor to work ? |
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| 15:07.06 | hramrach | gzamboni: technically you don't need X11 |
| 15:07.23 | hramrach | but since most tools that use v4l sources would be X11 applications |
| 15:07.53 | rm | if it's just a /dev/videoX V4L device, then no |
| 15:08.20 | rm | there's a lot of X11-less V4L-capture programs |
| 15:08.35 | hramrach | there are |
| 15:08.47 | hramrach | but how do you see what you have captured then? |
| 15:08.52 | hramrach | export over nfs? |
| 15:08.55 | rm | duh |
| 15:08.55 | oliv3r | webinterface |
| 15:08.58 | oliv3r | motion :p |
| 15:08.59 | rm | saving into a jpeg file |
| 15:09.06 | oliv3r | motion.sourceforge.net i guess |
| 15:09.09 | rm | serving over any networking FS or scp or http etc |
| 15:10.06 | rm | my mk802 handles a "security camera" as one of its uses |
| 15:10.27 | rm | a webcam with picture from it accessible from the web |
| 15:12.09 | gzamboni | i tried to stream it using avconv but im getting some errors |
| 15:12.45 | rm | try easy things first, e.g. if you can capture a bmp or a jpg file |
| 15:13.16 | rm | I use vgrabbj |
| 15:14.52 | gzamboni | i did put an omnivision ov7670 csi camera on my cubieboard |
| 15:15.22 | gzamboni | i can successfly load the csi1 module |
| 15:15.43 | gzamboni | everything seems to work, but when i try to do something with /dev/video1 i get some errors |
| 15:16.48 | gzamboni | i will try with vgrabbj, thanks rm |
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| 15:24.05 | rm | V4L is kind of complex stuff |
| 15:24.32 | rm | I remember vgrabbj has a lot of parameters on how to set up the V4L camera |
| 15:24.56 | fra79Wii | I guys, I can't make my goodix_touch to work |
| 15:24.59 | rm | maybe you're setting shome thing wrong, hence errors |
| 15:25.17 | fra79Wii | it should use the driver gt_801 "2+1" |
| 15:30.42 | fra79Wii | I'm using the kernel 3.4.24 from linux-sunxi project |
| 15:31.54 | fra79Wii | sing the goodix_touch module it load fine in dmesg, but then it doesn't work
and I don't know how to debug it wither... |
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| 15:33.48 | fra79Wii | hmm..sorry for the million typos I managed to do :P
|
| 15:35.14 | fra79Wii | does someone now if is worthed to port the drivers gt801_2plus1 from lichee 3.0.8 to the master branches? |
| 15:35.41 | fra79Wii | now = know
|
| 15:42.37 | GeorgeIoak | ssvb: Still not sure why but I never did get Mali loaded correctly. I did go back and have VLC w/ Cedar working and somewhat integrated into a browser too |
| 15:43.54 | GeorgeIoak | Q: Seems like boot take a while to load the Mali drivers, can you take a look at my .config (for 3.0.57r1) and see what's save to remove if I'm relying on VLC/Cedar |
| 15:44.13 | GeorgeIoak | the .config is at http://pastebin.com/uNhDgv9G |
| 15:47.02 | gzamboni | i dont know why but the csi only works when i set csi_mode to 0 in the csi1_para section of the fex |
| 15:47.31 | gzamboni | anyone know what it is this for ? |
| 15:51.12 | ssvb | GeorgeIoak: maybe we both are missing something trivial, but I have no other ideas about what could be wrong with the Mali drivers on your system |
| 15:52.48 | GeorgeIoak | ssvb: it's really crazy because I started with a fresh kernel and rootfs and then followed the Mali400 wiki steps but still ended up getting software renderer on the glmark2-es2 demo |
| 15:54.20 | GeorgeIoak | now i have everything loaded but i don't think they're needed for general 2D or Cedar. i needed to improve boot time so i wanted to remove some drivers if they're not needed |
| 15:57.06 | Turl | fra79Wii: do you have code for the "2+1" one? |
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| 16:06.25 | fra79Wii | yes.. it's here: |
| 16:06.35 | fra79Wii | https://github.com/linux-sunxi/linux-sunxi/blob/lichee-3.0.8-sun4i-an7g3/drivers/input/touchscreen/gt801_2plus1.c |
| 16:06.43 | fra79Wii | I did not test it tough |
| 16:07.24 | fra79Wii | using gt_811 I have a /dev/input/mouse1.. which doesn't output enything.... |
| 16:07.47 | fra79Wii | goodix_touch doesn't do anything at all
. |
| 16:08.35 | fra79Wii | I have to go now.. maybe in the evening I'll try to test the old kernel |
| 16:10.04 | fra79Wii | Turl: I saw your patch.. but it wasn't compiling in the current master 3.0/3.4 |
| 16:10.32 | fra79Wii | see you |
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| 17:38.35 | gzamboni | rm using vgrabbj: [ 6120.040000] [CSI_ERR]v4l2 sub device queryctrl error! Floating point exception |
| 17:43.53 | aholler_ | as the kernel doesn't use floats, the problem is likely in userspace (your app which seems to be vgrabbj) |
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| 17:46.11 | rm | that's interesting |
| 17:46.17 | rm | do you use armel or armhf? |
| 17:46.24 | gzamboni | armhf |
| 17:47.11 | gzamboni | im using the sunxi-bsp with a debian distro image made by rella |
| 17:47.41 | gzamboni | of course i modified the fex for the csi1 support |
| 17:48.09 | rm | maybe the driver is bad |
| 17:48.24 | rm | and it tries to do some floating point in the kernel, and this turns out not to be allowed |
| 17:48.40 | rm | I use vgrabbj in Debian armhf on A10 |
| 17:48.44 | rm | but not with CSI |
| 17:48.52 | rm | just with an USB web cam |
| 17:49.31 | gzamboni | i have an usb web cam, let me try it here |
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| 18:09.39 | fra79Wii | Turl: I've seen your patch but I couldn't compile the module, does it works? |
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| 18:17.25 | Turl | fra79Wii: I'm pretty sure it builds, I got it from ZaEarl |
| 18:19.37 | fra79Wii | this commit? |
| 18:19.37 | fra79Wii | https://github.com/linux-sunxi/linux-sunxi/commit/82bcb1aaf |
| 18:20.17 | fra79Wii | Ok.. :) I'll try to patch the current 3.4 |
| 18:24.50 | Turl | hm I don't see the one I got from ZaEarl now |
| 18:25.09 | Turl | fra79Wii: that one looks from the sdk import, was it on lichee branch? |
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| 18:45.27 | jochensp | Hi Guest25737 (techn?) we talked about sound issues with a10 yesterday, right? |
| 18:45.37 | Guest25737 | jochensp: yes |
| 18:46.12 | jochensp | I've booted the android kernel you pointed me to but sound was the same |
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| 18:46.42 | techn_ | jochensp: :( |
| 18:47.13 | jochensp | techn_: is there any other (newer) kernel source? |
| 18:47.59 | techn_ | no :/ |
| 18:48.10 | techn_ | unless some other vendor has released something |
| 18:57.06 | techn_ | is network boot available in our main u-boot branch? |
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| 19:00.38 | fra79Wii | hmm I might try to look for the one of ZaEarl |
| 19:01.13 | ZaEarl | fra79Wii, touchscreen driver? |
| 19:01.27 | fra79Wii | huu.. yeas :) |
| 19:01.47 | fra79Wii | I'm struggling with the gt_801 2+1 driver.. |
| 19:03.00 | fra79Wii | odroid I use to load gt_801_2_plus_1, on Lix both the gt_811 and the goodix_touch load with no error but nothing really happen... |
| 19:03.05 | fra79Wii | linux.. |
| 19:05.19 | fra79Wii | ZaEarl: Turl told me you gave him a patch for the goodix 801 2+1 |
| 19:07.04 | fra79Wii | I was looking online if I could find your patch.. :P I'm currently trying the one from lichee but the module doesn't compile on master
|
| 19:07.11 | ZaEarl | are you sure you have the right hardware? Most drivers for the arm platform are very picky about what hardware, fex, and other settings |
| 19:07.37 | fra79Wii | yes, I have a sun4i tablet... |
| 19:09.53 | fra79Wii | the module gt_811 create a /dev/input/mouse1, but nothing happens, alt ought dmesg doesn't complains, it says OK and so on... |
| 19:12.56 | ZaEarl | gt811 and gt8012+1 are different chips |
| 19:16.13 | fra79Wii | yes I know.. :P
but the drivers for the 801_2plus_1 is not in sunxi repos |
| 19:21.22 | techn_ | https://github.com/linux-sunxi/linux-sunxi/commit/82bcb1aaff994645ee4f1cf1d7bf67da84640eed |
| 19:21.50 | techn_ | fra79Wii: ^ |
| 19:24.38 | techn_ | test that and send patch :) |
| 19:24.49 | fra79Wii | techn_: thanks I'm trying it already but it doesn't compile
:) |
| 19:25.01 | techn_ | oh.. and it's 802 |
| 19:25.11 | fra79Wii | I'm trying to fix the compile.. then will be back.. |
| 19:25.19 | techn_ | no it's 801.. commit has typo |
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| 19:30.30 | adibek | Hi a have extracted all files from /dev/block/nanda partition from my MK802+ (CS102 with A10s) , |
| 19:30.42 | adibek | Can someone tell me how to use this to build linux image for MK802+ ? |
| 19:38.14 | adibek | This mk802+ use u-boot.bin to start |
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| 20:52.09 | libv_ | ssvb: are you really running a textured cube at 328fps at 1280x720? |
| 20:53.01 | ssvb | libv_: no, that's running in a 800x600 window |
| 20:53.21 | libv_ | ah, of course |
| 20:53.50 | libv | ssvb: i will poke with memory speeds soon |
| 20:54.09 | Turl | hey libv :) |
| 20:54.15 | libv | hey :) |
| 20:54.28 | Turl | libv: do you know if videos of your talk are up somewhere? |
| 20:54.39 | libv | yes, there is a video somewhere |
| 20:54.51 | libv | but i have no idea where |
| 20:54.57 | techn_ | still empty http://video.fosdem.org/2013/ :( |
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| 20:55.48 | libv | first time reading through things after the fosdem melee |
| 20:56.48 | libv | wasn't there like a livestream? |
| 20:57.08 | Turl | yeah, but techn_ got your last 5min I think |
| 20:57.13 | Turl | and I missed it entirely lol |
| 20:57.26 | libv | things will pop up in the next week or so now that people are recovering |
| 20:58.01 | Turl | ssvb: you appeared on phoronix btw |
| 20:58.35 | ssvb | Turl: yes, unexpectedly |
| 20:58.39 | fra79Wii | cool :) I got the patch from lichee to work with 3.4.24+ :) |
| 20:58.58 | fra79Wii | for the 801_2_plus_1 driver... |
| 20:59.38 | techn_ | fra79Wii: nice. http://linux-sunxi.org/Submitting_patches ;) |
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| 21:00.13 | ssvb | Turl: If I knew it beforehand, I probably would have written it in a bit different way (more targeting general public instead of the people already familiar with linux-sunxi) |
| 21:00.26 | fra79Wii | ..I mean is not working the touchscreen yet.. I fix the compile errors, and "cat /dev/input/event2" shows stuff when I touch the screen... |
| 21:00.39 | fra79Wii | I guess putting it in xorg.con might work... |
| 21:00.52 | fra79Wii | Is not a clean driver.. I have plenty of errors... |
| 21:01.01 | fra79Wii | ..plenty of warning I mean.. |
| 21:01.29 | techn_ | fra79Wii: oh.. you propably need to disable multitouch temporaly.. :/ |
| 21:02.59 | ssvb | techn_: btw, this talk was rather interesting - https://fosdem.org/2013/schedule/event/opentegra/ |
| 21:03.06 | fra79Wii | I've disabled it in the fex (I think)
is just I'm using a debian thingy.. I don't know where config stuff
but I have my gentoo build almost ready.. there I'll know where to put stuff... |
| 21:05.07 | fra79Wii | but I'll submit the patch tomorrow, now is late I have to go (I'm frugally hacking :P) |
| 21:05.30 | techn_ | ssvb: were you @ fosdem? I didn't have time to watch any of those streams :( |
| 21:05.37 | ssvb | techn_: apparently the 2d accelerator in tegra is quite similar to g2d in a10, and they also have problems with scanout at high resolutions and need to throttle down memory bandwidth usage to avoid rather nasty image corruptions :) |
| 21:06.03 | ssvb | techn_: yes, I was there |
| 21:07.30 | ssvb | techn_: but I also hope that they will eventually upload videos because it was obviously impossible to attend multiple talks with overlapping timeslots |
| 21:07.54 | techn_ | ssvb: I have spend last week trying figure out how to handle normal layer pageflipping.. :( |
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| 21:08.25 | techn_ | scaler layer have some internal buffering which hides the problem |
| 21:09.36 | techn_ | but anyway.. good exercise.. I have learnt alot how to debug kernel |
| 21:11.33 | ssvb | techn_: if the primary layer is anything like the others, fixing page flipping should be just a matter of properly changing the base address for scanout |
| 21:12.22 | ssvb | techn_: and for the other layers, it is possible to use them either unscaled, or with the scaler |
| 21:12.30 | techn_ | libv: did you really say that your experiemental driver 2% faster that binary driver.. and with real driver you'll get 200% better performance? :D |
| 21:15.50 | techn_ | ssvb: It's bit more complex.. If you change page @ wrong time you'll get tearing.. and if you wait for right time you'll get poor fps.. allwinner has worked this around with empty vsync ioctl and vsync is always done during page flip |
| 21:17.04 | ssvb | techn_: hmm, can we just schedule the page flip on the next vsync irq? |
| 21:17.30 | techn_ | some why vblank time can be set only to 31lines max :( |
| 21:18.12 | ssvb | techn_: is the irq coming at the wrong time or what? |
| 21:19.19 | techn_ | ssvb: then you'll get 30fps .. application waits for vsync, get's it, flip's, misses 31'th line, draws to wrong page |
| 21:19.57 | techn_ | or other option is to |
| 21:20.09 | ssvb | techn_: afaik this is normally solved by triple buffering |
| 21:20.59 | techn_ | yes.. thats option too.. but you'll lose another 16MB ram :( |
| 21:22.37 | ssvb | techn_: what happens if the application does not wait for vsync? |
| 21:23.22 | techn_ | I think then there is no problem.. It just needs to make sure that it draws to correct page |
| 21:23.46 | techn_ | page is always flipped at correct time |
| 21:23.47 | ssvb | techn_: is this wait happening in the mali blob (framebuffer based variant)? |
| 21:24.39 | techn_ | atleast xbmc waits for vsync.. but it uses scaler layer.. which seems to have that triple buffering automaticly :/ |
| 21:24.41 | ssvb | techn_: or are you generally interested in proper vsync/pageflipping in other applications? |
| 21:25.11 | techn_ | ssvb: I'm using directfb application as reference .. df_kncukles |
| 21:26.47 | ssvb | techn_: if it's not a mali blob, then we can probably add new ioctls for better vsync/pageflipping and update the affected applications |
| 21:27.33 | Turl | android would appreciate proper vsync support :) |
| 21:28.09 | Turl | while(1) { sleep(); run(); } isn't optimal :p |
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| 21:29.25 | techn_ | ssvb: I'll continue investigating that.. (poking registers) |
| 21:31.04 | techn_ | hopefully I can resolve that by this weekend.. if not triple buffering is required for normal layer |
| 21:32.49 | ssvb | techn_: it would seem to be rather natural to have something like 1) non-blocking ioctl to schedule page flipping on next vsync 2) ioctl to block until the pending page flip is done (and maybe return the current base address/buffer offset) |
| 21:34.05 | techn_ | ssvb: how well vsync is specified.. on which line it should be emited? |
| 21:35.56 | ssvb | techn_: don't know, but there should be a short blanking period where nothing is updated on screen between frames |
| 21:36.26 | ssvb | techn_: maybe this requires some experiments with different settings to get it right |
| 21:44.07 | ssvb | techn_: btw, your patch seems to have introduced a regression - https://groups.google.com/forum/#!topic/linux-sunxi/ZiXU8iE3v9o |
| 21:44.39 | ssvb | techn_: does your device support VGA output? |
| 21:44.47 | techn_ | ssvb: no |
| 21:45.11 | ssvb | techn_: I see, than it's probably up to me or somebody else to fix :) |
| 21:46.08 | ssvb | techn_: is your device hdmi only or hdmi/lcd? |
| 21:47.08 | techn_ | I have hdmi & lcd, hdmi & composite, lcd and now hdmi only devices :p |
| 21:48.56 | ssvb | techn_: I have Mele A2000, it is hdmi & vga & composite, so not lcd here (and I have no monitor or tv with composite input support) |
| 21:50.07 | ssvb | techn_: I'm just worried that I can break lcd support without noticing if hacking this code :) |
| 21:50.42 | techn_ | ssvb: It seems to be really good change that you'll break something when you touch disp :D |
| 21:52.01 | techn_ | that comparison is propably missing this comparison g_fbi.fb_mode[info->node] != FB_MODE_SCREEN1 |
| 21:52.10 | Turl | ooh, a wild folder appeared! http://video.fosdem.org/2013/ |
| 22:00.39 | hramrach | btw on PC hardware multiple outputs are really bad for vsync |
| 22:01.04 | ssvb | libv: just changing this line in u-boot is enough - https://github.com/linux-sunxi/u-boot-sunxi/blob/sunxi/board/allwinner/mele_a1000/dram.c#L7 |
| 22:01.18 | hramrach | in most cases what you read from edid plus CRTC constraints gives slightly different timing |
| 22:01.43 | hramrach | so you never get the vblank at the same time on all outputs |
| 22:02.21 | hramrach | and the X server has one huge scanout buffer so you cannot flip it during vblank |
| 22:02.40 | ssvb | libv: I suspect that going right up to 480 will work just fine, but you can try increasing it in smaller steps |
| 22:03.54 | hramrach | still when you have something like a window that extends over multiple outputs |
| 22:04.07 | hramrach | you get the same situation |
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| 22:07.11 | ssvb | hramrach: we have /dev/fb0 and /dev/fb1, which are different buffers |
| 22:08.30 | ssvb | hramrach: so it's more like just zaphod dualhead support with no window spanning over multiple outputs |
| 22:09.56 | Turl | ssvb: doesn't linux use the value on fex too? |
| 22:10.28 | ssvb | Turl: the value from .fex did not have any effect in my tests |
| 22:11.46 | Turl | https://github.com/linux-sunxi/linux-sunxi/blob/sunxi-3.0/arch/arm/mach-sun4i/pm/standby/standby_clock.c#L336 appears to just (un)gate it |
| 22:12.34 | ssvb | Turl: so the people who think that they are overclocking RAM via .fex are actually changing nothing |
| 22:12.50 | Turl | :) |
| 22:14.21 | ssvb | Turl: http://irclog.whitequark.org/arm-netbook/2012-11-18#2274222 |
| 22:15.21 | ssvb | Turl: also nowadays it should be possible to verify the real clock speed via a10-meminfo |
| 22:18.12 | Turl | wonder if it could be possible to tweak the clock on the live system |
| 22:27.15 | Turl | a wild video has appeared! http://video.fosdem.org/2013/maintracks/ |
| 22:28.29 | ssvb | Turl: apparently not yet - "Unfortunately, the file you requested is not yet available on our mirrors. Please try again later" :) |
| 22:28.41 | ssvb | they are teasing us |
| 22:29.36 | Turl | needs to install specto on this PC |
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