IRC chat logs for #ltsp on irc.freenode.net (webchat)


Channel log from 3 September 2012   (all times are UTC)

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03:03
<alkisg>
kieppie1: afaik, spice only _plans_ to offer 3d passthrough acceleration to VMs, not to remote clients, did I miss anything?
03:04
For 3d over the network, the only thing I heard of is virtualgl, which I tried but it crashed my server
03:04
Of course if a server is good enough to render 3d itself and then send the result as a video stream to the clients, then sure, that would work, but that doesn't depend on 3d client-side availability
03:06
For now, ltsp only supports compositing etc desktops if the WM runs on the clients locally, e.g. localapps, ltsp fat clients...
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08:43
<warren>
alkisg: oddly enough, compiz running on the remote server (not as a local app) used to work in older versions quite well
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08:44
<alkisg>
warren: it still works with llvmpipe, but it's very slow
08:45
<warren>
alkisg: I vaguely remember it was around the advent of DRI2 when it stopped working
08:46
<alkisg>
warren: so with dri1 one could run compiz over the network well enough? should we try to report bugs about dri2? or should we try to switch and run the WM as a localapp by default, if it requires 3d?
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08:47
<warren>
alkisg: hmm, i might be wrong about DRI2
08:48
alkisg: with thin client graphics hardware that supported compositing, compiz running ON THE SERVER had very good performance on the client
08:48
hmm
08:50
alkisg: Fedora 10 was the last version I know it worked, perhaps Fedora 11 too. Sometime after that it stopped working.
08:50
<alkisg>
Gotcha, but I wasn't able to ever reproduce that, I only got llvmpipe on the client even if it supports 3d normally
08:51
<warren>
It was actually the software itself aborting
08:51
it might be as simple as removing a conditional that was added at that time
08:52
alkisg: Fedora 17+ is supposed to have a fallback software compositer, does that work
08:52
?
08:52
<alkisg>
I think stgraber put an env var at some point about LIBGL_ALWAYS_INDIRECT
08:53
warren, the software compositor is llvmpipe, I think its performance is acceptable locally but not over the network
08:53
I didn't try a whole DE with llvmpipe, just a few apps, and it was tooooo slow
08:53
<warren>
the real nice thing about remote compiz is it actually IMPROVED performance and reduced bandwidth usage
08:53
we measured that at the time
08:54
<alkisg>
If there's enough memory for pixmap caching, I imagine that's ok, but I wasn't able to reproduce that since I've heard about that case
08:54
<warren>
(when compared to a non-composited desktop)
08:55
<alkisg>
I always got software 3d in the clients, so it always sucked
08:55
<warren>
my test case was a Thinkpad T41 with Radeon 7500 client
08:55* alkisg used an intel atom netbook, which runs 3d locally fine
08:55
<warren>
it broke early 2009 AFAIK
08:56
something changed in X, compiz, or somewhere in between
08:56
<alkisg>
warren: doesn't f17 use mutter instead of compiz?
08:56
<warren>
yeah, Fedora now uses GNOME3
08:57
<alkisg>
So, we'd need to troubleshoot 2 compositors...
08:57
<warren>
GNOME3 didn't happen until like fedora 16 I think
08:57
IMHO, LTSP on Fedora should use Mate
08:57* alkisg is using gnome-fallback for greek schools
08:57
<warren>
with software compositing, the GNOME team planned on dropping support for fallback
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08:58
<warren>
not sure how that's going now
08:58
<alkisg>
The same. Well, we'll keep ubuntu 12.04 for 2 years and then check for a wayland-based implementation
08:58
Which might be vnc/rdp like for thin clients, and normal for fats
08:58
(2 years or even more, if needed)
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09:00
<warren>
alkisg: I would investigate what exactly changed that broke remote compiz ~2009
09:00
alkisg: it worked GREAT before that
09:01
<alkisg>
warren: hmmm does that also mean that programs that required 3d, like google earth, worked also OK at that point?
09:02
<warren>
alkisg: i don't remember trying google earth, but glxgears worked on the side of a spinning cube
09:02
<alkisg>
That sounds great
09:03
<warren>
I don't remember when DRI2 actually happened
09:03
<alkisg>
There's also virtualgl for 3d over the network, not sure if that would be needed if remote compiz/3d worked fine out of the box
09:03
<warren>
3D on the spinning cube was only possible after DRI2
09:03
DRI2 brought indirect direct rendering
09:05
http://hoegsberg.blogspot.com/2008/03/i-just-committed-last-bit-of-dri2-work.html
09:06
early 2008 DRI2 was committed ....
09:06
october 2008 was my last known confirmation of working remote compiz
09:06
early 2009 I was reassigned to work on a different project, so I didn't test it much. I just noticed it broke with some kind of abort.
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10:06* ogra_ remembers too that compiz remotely worked tons better that even a 2D desktop in the past
10:06
<ogra_>
*than
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12:38
<alkisg>
!lock
12:38
<ltsp>
(lock [<channel>] <key>) -- Locks the factoid(s) associated with <key> so that they cannot be removed or added to. <channel> is only necessary if the message isn't sent in the channel itself.
12:38
<alkisg>
!lock-screen
12:38
<ltsp>
Error: "lock-screen" is not a valid command.
12:39
<alkisg>
!learn To disable lock screen in newer Gnome versions: gsettings org.gnome.desktop.screensaver lock-enabled false
12:39
<ltsp>
(learn [<channel>] <key> as <value>) -- Associates <key> with <value>. <channel> is only necessary if the message isn't sent on the channel itself. The word 'as' is necessary to separate the key from the value. It can be changed to another word via the learnSeparator registry value.
12:39
<alkisg>
!learn lock-screen To disable lock screen in newer Gnome versions: gsettings org.gnome.desktop.screensaver lock-enabled false
12:39
<ltsp>
(learn [<channel>] <key> as <value>) -- Associates <key> with <value>. <channel> is only necessary if the message isn't sent on the channel itself. The word 'as' is necessary to separate the key from the value. It can be changed to another word via the learnSeparator registry value.
12:39
<alkisg>
!learn lock-screen as To disable lock screen in newer Gnome versions: gsettings org.gnome.desktop.screensaver lock-enabled false
12:39
<ltsp>
The operation succeeded.
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14:20
<Hyperbyte>
!lock alkisg
14:20
<ltsp>
An error has occurred and has been logged. Please contact this bot's administrator for more information.
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14:35
<Hyperbyte>
!lock-screen
14:35
<ltsp>
lock-screen: To disable lock screen in newer Gnome versions: gsettings org.gnome.desktop.screensaver lock-enabled false
14:39
<alkisg>
!forget lock-screen
14:39
<ltsp>
The operation succeeded.
14:39
<alkisg>
!learn lock-screen as To disable lock screen in newer Gnome versions: gsettings set org.gnome.desktop.screensaver lock-enabled false
14:39
<ltsp>
The operation succeeded.
14:40
<alkisg>
Hyperbyte: why don't you create a factoid on how to globally force gsettings? :)
14:41
!learn gsettings-defaults as ls /usr/share/glib-2.0/schemas/*.override; man glib-compile-schemas
14:41
<ltsp>
The operation succeeded.
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15:19
<hammommah>
how do i go about mounting a nfs share off my media centre for my kids thins clients to connect to?
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15:37
<alkisg>
hammommah: you just mount it on your ltsp server, it doesn't need to be mounted on the thin clients
15:40
<hammommah>
ty very much. google just bring up heaps of solutions for nfs mount main boot directory.. life saver :)
15:42
<alkisg>
Boot directory? Not a directory with media files?
15:43
Do you mean that you don't want to use LTSP but just use NFS to netboot the clients?
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15:45
<hammommah>
no no I want to mount media nfs in my lounge room not on ltspserver... i was just saying google has a thousand threads on nfs booting problems not soloutions for setting up different nfs share.
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15:49
<hammommah>
ty for the help :) im off to catch some zzzz's
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18:43
<sternfan2012>
hello
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20:46
<Hyperbyte>
mhmmm
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