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| Mirv | boiko: it needs rerun (now is okay), there was a faulty UITK in overlay for a while that needed a no-change rebuild | 11:28 |
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| boiko | Mirv: nice, thanks! :) | 12:47 |
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| === dandrader|afk is now known as dandrader | ||
| dandrader | attente, how do I know if gdk backend probing is at work? and how can I force it when launching from commnad line? looks like it stopped working for me... I'm confused | 16:09 |
| dandrader | bregma_, looks like gdk backend probing stopped working for me | 16:12 |
| dandrader | bregma_, I did the GDK_BACKEND="" as you suggested | 16:13 |
| attente | dandrader: which backend are you trying to use? mir? | 16:13 |
| dandrader | bregma_, worked the first fime or so (saw client trying consecutive connections on unity8.log) | 16:13 |
| dandrader | bregma_, but not anymore | 16:13 |
| attente | dandrader: gtk from z archive checks for mir first before x11 | 16:14 |
| dandrader | bregma_, now, if I do GDK_BACKEND="mir" on terminal. it all works. but with GDK_BACKEND="" I don't see any connection attempt at all | 16:14 |
| attente | dandrader: you'd have to specify GDK_BACKEND="*", but that's a no-op | 16:14 |
| dandrader | attente, yes, mir. I'm trying to | 16:14 |
| dandrader | get it to try mir via backend probing | 16:14 |
| dandrader | attente, ah so it's "*" no just "". | 16:15 |
| attente | dandrader: if you want to run this under u8, you can either try ubuntu-app-launch <desktop-file> | 16:15 |
| attente | dandrader: you can also try adding '-- --desktop_file_hint=<desktop-file>' after the binary name too | 16:15 |
| Saviq | attente, UAL will now launch with GDK_BACKEND="x11" I believe - that's what dandrader's trying to avoid | 16:16 |
| Saviq | we weren't ready for the connect, disconnect, connect dance | 16:16 |
| dandrader | attente, yeah, I do the hint as well. btw, now you can use a DESKTOP_FILE_HINT env var as well. more convenient | 16:16 |
| attente | ah, my bad | 16:16 |
| Saviq | dandrader, both of which we should do away with ;P | 16:16 |
| attente | dandrader: there's also "X-Ubuntu-XMir-Enable=false" which you can add to the desktop file of the app you want to test to disable xmir and allow gtk to skip to using mir | 16:17 |
| attente | but yeah... GDK_BACKEND='*' should get you the original upstream probing order (mir first, then x11), assuming u-a-l doesn't override that | 16:19 |
| dandrader | attente, what I want to do is try out gdk's backend probing | 16:19 |
| dandrader | attente, now my app started from commandline using GDK_BACKEND="*" \o/ | 16:19 |
| attente | dandrader: great! | 16:20 |
| dandrader | attente, although It only created one connection/session. is that how it works? | 16:20 |
| attente | dandrader: yes, it'll only connect once to the mir socket | 16:21 |
| dandrader | attente, I thought bakcend probing would cause a gtk app to create a mir connection, then drop it, then finally create a new one and use it for real | 16:21 |
| dandrader | attente, so probing doesn't waste connections then? awesome | 16:21 |
| attente | dandrader: no, it just tries it, and if it works, keeps it, and moves on to the next if it fails | 16:21 |
| dandrader | Saviq, ^ | 16:21 |
| dandrader | Saviq, now I'm puzzled :/ | 16:21 |
| * Saviq too | 16:22 | |
| attente | dandrader: what's the issue? does it look like gtk is creating multiple connections? | 16:22 |
| dandrader | attente, I was trying to fix a issue where probing seemed to create a mir connection, drop it, and then create a new final one. that caused unity8 to consider that the app stopped on the first connection drop | 16:23 |
| Saviq | dandrader, one of those connections could've been xmir http://pastebin.ubuntu.com/24319827/ | 16:23 |
| dandrader | Saviq, attente, a so xmir would be the one probing for mir? | 16:23 |
| Saviq | but that should've worked then with your original approach, 'cause xmir stays on, even if app connects to Mir | 16:23 |
| Saviq | dandrader, right now, unless X-Ubuntu..., xmir just gets launched | 16:24 |
| Saviq | and should connect first, and stay connected | 16:24 |
| attente | i thought the problem was xmir and gtk both connecting to the mir socket | 16:24 |
| attente | or is this actually supposed to be ok? | 16:24 |
| dandrader | attente, tjat | 16:24 |
| bregma_ | also, libSDL does the double-probe dance for whatever reason | 16:24 |
| Saviq | yes, we'll need the double-double for SDL anyway | 16:24 |
| dandrader | attente, yes. multiple simultaneous connections will work now with the qtmir about to be release | 16:25 |
| bregma_ | heh, double-double makes it sound like a joke in Candian patois | 16:25 |
| * Saviq wonders what GDK_BACKEND="" results in, then ;P | 16:26 | |
| dandrader | bregma_, any simple sdl app in ubuntu you recommend me to use as a test subject? | 16:26 |
| Saviq | bregma_, also, can we unset GDK_BACKEND somewhere to verify GTK works? | 16:27 |
| bregma_ | dandrader, we user neverball for testing | 16:27 |
| dandrader | bregma_, great, any env vars I should set? | 16:28 |
| bregma_ | Saviq, I'm not sure where GDK_BACK gets set (doesn;t seem to be in trunk UAL code), I'd just change the Exec line in a .desktop file to start with "env -u GDK_BACKEND ..." to remove that variable from the app's environment | 16:29 |
| Saviq | ah -u | 16:29 |
| bregma_ | dandrader, er, I'm not sure of the probing order gets set properly in libSDL after recent merged... bschaefer do you know? | 16:29 |
| bschaefer | bregma_, SDL2 is still x11 first | 16:30 |
| Saviq | dandrader, but doesn't http://pastebin.ubuntu.com/24319827/ suggest the approach in to-be-released qtmir didn't work? | 16:30 |
| bschaefer | ive not made that patch yet to that lib | 16:30 |
| bregma_ | bschaefer, what's the env var to force the libSDL probe order? | 16:30 |
| * bschaefer has plans for it | 16:30 | |
| bschaefer | SDL_VIDEODRIVER=mir | 16:30 |
| bschaefer | or x11 | 16:30 |
| Saviq | well, yeah, that's not "probe order' ;) | 16:30 |
| bschaefer | haha yeah thats not | 16:31 |
| Saviq | dandrader, xmir connects, app connects, gets rejected, app dies, xmir exits | 16:31 |
| Saviq | IIUC | 16:31 |
| bregma_ | libSDL doesn't let you specify the order by env var | 16:31 |
| bregma_ | just the back end | 16:31 |
| bregma_ | we should get that patched upstream | 16:31 |
| attente | does u8 require upstart for anything? | 16:31 |
| bregma_ | attente, far as I know it still requires upstart to start itself and its dependencies up | 16:32 |
| bschaefer | bregma_, upstream does not want that | 16:32 |
| bregma_ | bschaefer, upstream needs to be slapped silly | 16:32 |
| bschaefer | the order is to do X11 first until Mir or Wayland take over more | 16:32 |
| bschaefer | bregma_, yeah ... i asked a year or so ago | 16:33 |
| bschaefer | bregma_, but for now we can carry it in a patch | 16:33 |
| bregma_ | yes, it's pretty much a one-liner patch | 16:33 |
| bschaefer | sdl1.2 does check for mir first though (once that lands ... hopefuly ~2 weeks) | 16:33 |
| bschaefer | bregma_, yup, but need to get that sdl2 patch in for mir deprecations | 16:33 |
| bschaefer | soo might as well add it then | 16:33 |
| attente | bregma_: do you know what dependencies rely on that? jbicha was asking in #ubuntu-desktop | 16:33 |
| dandrader | bschaefer, doyou have that patched sdl in a usable silo? | 16:34 |
| bschaefer | dandrader, sdl1.2? or sdl2? | 16:34 |
| bschaefer | i dont have either in a silo | 16:34 |
| bschaefer | dandrader, i can make a ppa though | 16:34 |
| dandrader | bschaefer, I don't know. whatever neverball uses (that's the preferred sdl app for testing, right?) | 16:35 |
| bschaefer | yeah thats sdl2 | 16:35 |
| bschaefer | sdl1.2 gives you a bunch of other games | 16:35 |
| bschaefer | plus mplayer | 16:35 |
| bschaefer | which is awesome to watch some videos on mir | 16:35 |
| bschaefer | dandrader, let me get a ppa up though with that in the correct order | 16:36 |
| dandrader | bschaefer, actually it should be fine without the patch. I just have to change neverballs' desktop file to not use xmir and then it will do probing and find mir, right? | 16:38 |
| bschaefer | yeah if it cant find the DISPLAY env | 16:38 |
| bschaefer | it'll fail the x11 check and move to mir | 16:38 |
| dandrader | bschaefer, then it will make a probe mir connection followed by a real mir connection? | 16:39 |
| bschaefer | dandrader, actually that double connection part is not in the current ubuntu archive for sdl2 | 16:39 |
| bschaefer | that was upstreamed a month or so ago | 16:39 |
| bschaefer | sooo sdl2 atm only does 1 mir connection in zesty | 16:40 |
| Saviq | dandrader, bregma_, ok I've confirmed now that with and without `env -u GDK_BACKEND` in the Exec line both gnome-softwares start up fine (with silo 2668) | 16:42 |
| Saviq | bregma_, so we can undo GDK_BACKEND=x11 | 16:43 |
| bregma_ | tedg, ^^^ | 16:43 |
| Saviq | dandrader, and that means it's not so much a priority any more | 16:43 |
| Saviq | sorry for the noise, I wouldn't have expected ="" to behave differently than ="*" or unset altogether... | 16:43 |
| dandrader | Saviq, ok, will go back to multi-instance support work then | 16:44 |
| Saviq | dandrader, if you're not far away with this one, might as well complete it - will be needed anyway | 16:46 |
| Saviq | but your call at this point | 16:46 |
| dandrader | Saviq, was just doing the debugging so far. no real code written | 16:47 |
| Saviq | ack | 16:47 |
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| bschaefer | dandrader, did you still want that ppa (with the upstream SDL2 changes?) | 17:09 |
| dandrader | bschaefer, nah | 17:26 |
| bschaefer | alright! Let me know if you need any testing for those changes | 17:26 |
| matv1 | jeez just read the news. gutted as you all must feel | 17:30 |
| matv1 | I take it this was just as much a bombshell for the Canonical devs as it is for us. Soo sorry for you guys. This should have been something awsum. | 17:40 |
| matv1 | is mir development going to be discontinued as well? | 17:47 |
| lpotter | personally I saw this coming months ago... | 20:03 |
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