Re: [X2Go-User] Questions regarding mate/video quailty

[Harald Heigl]

Hi,

Cause this mail is quite long - in short - problem solved (at least
for this mailing list), I have still a small problem:
- Right mouse click doesn't work in my x2go session:
- Left click works, middle click, scroll wheel, even the additional
buttons browser back and for are working, but not my ight, I always
have to hit context-menu-key on keyboard which works.
Can you give me a hint of whats going on and how to solve?
- I'm using the latest (4.0.5.0) client version, problem is also on 2
x86 computers (1 client, 1 server) with both fedora 22 set up.


Original - analysed and solved problem:
I went back to an x86-Client with fedora22 on it:
- on the server deinstalled nomachine, which I tried for testing -->
seemed to give some speed-up
- used a preempt kernel -> no real change
- changed the ssh encrypting to blowfish-cbc, arcfour -> little change
(as aes is performant on i7, but not older models)
- used kaffeine --> big speedup
- If I'm using vlc the timebar sometimes moves on, but the video
doesn't change. I don't know what this causes, perhaps some caching or
vlc tries to write a direct write on hardware components.
Parole-player seems to do something similar. kaffeine runs smoth,
picture is not as  good as if I'm sitting in front of my physical-pc
(since I'm compressing here with 16m-jpeg), but good enough.

So x2go-server seems to work at least it works so well, that I don't
notice any real differences.
So I tested with cubietruck (cubieboard 3.0, armhf, mali-GPU) as
client once again:
- nomachine, ssh and kaffeine have also given some significant
speedup. At least a video covering one third of the screen (at
1920x1080p) is running really well, fullscreen is still a little but
jumping, not as bad as before, but clearly visible.

So my problem seemed to be a combination of slow server, "wrong"
player, interfering package (nomachine) and a slow client.
For now I'll try another linux image on client, perhaps the mali-GPU
isn't supported right in my software or the x11 on the cleint is too
old. Perhaps there is also a limit (I don't hope so) what cubieboard
can do. But I think this will be a problem I'll better post in
cubieboard forums.


Thanks for your support!
Harald







2015-09-09 22:00 GMT+02:00 Robert Dinse <nan...@eskimo.com>:
>
>  Just for kicks how about fire up kaffiene firefox on the server and try
> a youtube video?  For playing video locally on the server I usually use
> kaffeine. Since I haven't used vlc or parole, I can't speak for how they
> work.
>
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>
> On Wed, 9 Sep 2015, Harald Heigl wrote:
>
>> Date: Wed, 9 Sep 2015 21:54:56 +0200
>>
>> From: Harald Heigl <harald.heigl1000+x...@gmail.com>
>> To: x2go-user@lists.x2go.org
>> Subject: Re: [X2Go-User] Questions regarding mate/video quailty
>>
>> Ok I try to shorten my mails, since the information you are asking for
>> is in my last mail (and in some mails before):
>> - ping: < 0.5ms (some peaks every some minutes at 2-3ms), before,
>> during and after video
>> - iperf (600-700Mbit/s), measured with no load
>> - cpu of server at 15-20% while watching video
>> - memory: approx 3-4GB (of 6GB) used, swap all free
>>
>> Could there be a caching problem, is vlc or parole the "wrong"
>> videoplayer?
>>
>> Thanks,
>> Harald
>>
>> 2015-09-09 20:15 GMT+02:00 Robert Dinse <nan...@eskimo.com>:
>>>
>>>
>>>  Herald, did you ever do the ping as I suggested while trying to
>>> watch
>>> video to see if perhaps there are some bandwidth / latency issues?
>>>
>>>  Another thing you might do is run a top on the server and watch the
>>> load while you're playing video, from a command line do a free and make
>>> sure
>>> you're not swapping.
>>>
>>>
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>>>  Eskimo North Linux Friendly Internet Access, Shell Accounts, and
>>> Hosting.
>>>Knowledgeable human assistance, not telephone trees or script readers.
>>>  See our web site: http://www.eskimo.com/ (206) 812-0051 or (800)
>>> 246-6874.
>>>
>>> On Wed, 9 Sep 2015, Harald Heigl wrote:
>>>
>>>> Date: Wed, 9 Sep 2015 20:11:29 +0200
>>>> From: Harald Heigl <harald.heigl1000+x...@gmail.com>
>>>> To: Robert Dinse <nan...@eskimo.com>
>>>> Cc: Hara

Re: [X2Go-User] Questions regarding mate/video quailty

[Eliezer Croitoru]

On 13/09/2015 11:27, Harald Heigl wrote:

So x2go-server seems to work at least it works so well, that I don't
notice any real differences.
So I tested with cubietruck (cubieboard 3.0, armhf, mali-GPU) as
client once again:
- nomachine, ssh and kaffeine have also given some significant
speedup. At least a video covering one third of the screen (at
1920x1080p) is running really well, fullscreen is still a little but
jumping, not as bad as before, but clearly visible.

Are you series?
1080p? You should really watch it in another way then X.
The basic 1080P video size requires more then a specific amount of 
bandwidth.

Why would you want to watch a 1080P video over X?

Eliezer

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Re: [X2Go-User] Questions regarding mate/video quailty

[Robert Dinse]

 Okay a bit more experimentation, with full screen 1080p video running,
as I mentioned I'm only getting around 15fps.  8Mbit/s bandwidth is used.
Only about 14% CPU is used, 0.56 load on a 4 CPU machine, and there is 1GB
of memory still free so not swapping on server.

 On the client about same CPU occupancy but most of that has nothing to
do with X2Go, it's other local stuff running.  2 GB still free so not swapping.

 So there is neither a CPU nor bandwidth nor memory constraint on either
server nor client.

 These are ping statistics:

--- fedora.eskimo.com ping statistics ---
19 packets transmitted, 19 received, 0% packet loss, time 18027ms
rtt min/avg/max/mdev = 8.288/9.627/12.287/1.101 ms

 This is pinging from my workstation on a Comcast cable modem to my server
at the co-lo facility.  As you can see no bad latency spikes, 12.2ms is max
and that's pretty reasonable for a remote connection.

 So there has to be some software bottleneck involved.  Any suggestions at
other things to look at?

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On Sun, 13 Sep 2015, Robert Dinse wrote:


Date: Sun, 13 Sep 2015 12:32:52 -0700 (PDT)
From: Robert Dinse <nan...@eskimo.com>
To: Harald Heigl <harald.heigl1000+x...@gmail.com>
Cc: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] Questions regarding mate/video quailty


I tried just now x2go at 1080p full screen from Ubuntu 15.04 client to
Fedora 22 server and I am not getting full motion video, it is reduced to
about 15 fps.

I am in the process of troubleshooting to try to determine where the
bottleneck, but something broke my server since I last logged in with mate
and mate-settings-daemon is continuosly starting and dying so that probably
isn't helping.

Once I get this resolved I'll try harder to narrow down where the 
bottleneck is occuring.  It's NOT bandwith at 1080p is using about 8Mbit/s

on a 25Mbit/s client connection and 100Mbit/s server connection and ping
times are still good so not network latency issues.

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On Sun, 13 Sep 2015, Harald Heigl wrote:


Date: Sun, 13 Sep 2015 21:26:56 +0200
From: Harald Heigl <harald.heigl1000+x...@gmail.com>
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] Questions regarding mate/video quailty

Hi,

Because projects like x2go, nomachine, ... are saying that it works
(video, nomachine even says for their products you can do CAD even if
I doubt this) and you don't see real differences from sitting in front
of your pc. I don't want to use it mainly for video, I can use my PS3
for this. But if I want to watch a short video, so why not and if I
optimize settings (what I've done) for video (which needs bandwith and
good speed), also the rest of using will be more fluent, so my
thoughts.
Don't misunderstand me, 1920x1080p is the native solution of my screen
as most screens nowadays have, I don't think that other people here
who said they are getting 30fps real time video are using 640x480 for
connecting via x2go. And since transfer is compressed I know I won't
get the same quality as fullhd through hdmi (which has far more
bandwidth than gigabit lan) and my videos themself are far away from
fullhd, at least most of them. So not the video is 1080p, but the
screen resolution! But at least between two x86 pcs I now get a
fullscreen video with kaffeine (+audio) which is quite fluent and
quality is quite ok.

Cubieboard itself is sometimes a little bit slow and there is no
"real" chrome (just chromium), and some other things. So I thought I'd
just use it as a thin client for my main-pc (which is used by 2
persons incuding me) and I wanted to see if I can get it there where I
don't notice any differences between sitting in front of my pc or
siiting "remote" in the next room. My last test with two x86 pcs went
quite well, I'll have to test a little more with my board. So problem
here solve, video is playing.



But I've still the problem with my right mouse click, any ideas?

Thanks,
Harald



2015-09-13 10:52 GMT+02:00 Eliezer Croitoru <elie...@ngtech.co.il>:

On 13/09/2015 11:27, Harald Heigl wrote:


So x2go-server seems to work at least it works so well, that I don't
notice any real differences.
So I tested with cubietruck (cubieboard 3.0, armhf, mali-GPU) as
client once again:
- nomachine, ssh and kaffeine have also given some significant
speedup. At least a video covering one third of the s

Re: [X2Go-User] Questions regarding mate/video quailty

[Harald Heigl]

Hi,

Because projects like x2go, nomachine, ... are saying that it works
(video, nomachine even says for their products you can do CAD even if
I doubt this) and you don't see real differences from sitting in front
of your pc. I don't want to use it mainly for video, I can use my PS3
for this. But if I want to watch a short video, so why not and if I
optimize settings (what I've done) for video (which needs bandwith and
good speed), also the rest of using will be more fluent, so my
thoughts.
Don't misunderstand me, 1920x1080p is the native solution of my screen
as most screens nowadays have, I don't think that other people here
who said they are getting 30fps real time video are using 640x480 for
connecting via x2go. And since transfer is compressed I know I won't
get the same quality as fullhd through hdmi (which has far more
bandwidth than gigabit lan) and my videos themself are far away from
fullhd, at least most of them. So not the video is 1080p, but the
screen resolution! But at least between two x86 pcs I now get a
fullscreen video with kaffeine (+audio) which is quite fluent and
quality is quite ok.

Cubieboard itself is sometimes a little bit slow and there is no
"real" chrome (just chromium), and some other things. So I thought I'd
just use it as a thin client for my main-pc (which is used by 2
persons incuding me) and I wanted to see if I can get it there where I
don't notice any differences between sitting in front of my pc or
siiting "remote" in the next room. My last test with two x86 pcs went
quite well, I'll have to test a little more with my board. So problem
here solve, video is playing.



But I've still the problem with my right mouse click, any ideas?

Thanks,
Harald



2015-09-13 10:52 GMT+02:00 Eliezer Croitoru :
> On 13/09/2015 11:27, Harald Heigl wrote:
>>
>> So x2go-server seems to work at least it works so well, that I don't
>> notice any real differences.
>> So I tested with cubietruck (cubieboard 3.0, armhf, mali-GPU) as
>> client once again:
>> - nomachine, ssh and kaffeine have also given some significant
>> speedup. At least a video covering one third of the screen (at
>> 1920x1080p) is running really well, fullscreen is still a little but
>> jumping, not as bad as before, but clearly visible.
>
> Are you series?
> 1080p? You should really watch it in another way then X.
> The basic 1080P video size requires more then a specific amount of
> bandwidth.
> Why would you want to watch a 1080P video over X?
>
> Eliezer
>
>
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Re: [X2Go-User] Questions regarding mate/video quailty

[Robert Dinse]

 Just for kicks how about fire up kaffiene firefox on the server and try a 
youtube video?  For playing video locally on the server I usually use kaffeine. 
Since I haven't used vlc or parole, I can't speak for how they work.


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On Wed, 9 Sep 2015, Harald Heigl wrote:


Date: Wed, 9 Sep 2015 21:54:56 +0200
From: Harald Heigl <harald.heigl1000+x...@gmail.com>
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] Questions regarding mate/video quailty

Ok I try to shorten my mails, since the information you are asking for
is in my last mail (and in some mails before):
- ping: < 0.5ms (some peaks every some minutes at 2-3ms), before,
during and after video
- iperf (600-700Mbit/s), measured with no load
- cpu of server at 15-20% while watching video
- memory: approx 3-4GB (of 6GB) used, swap all free

Could there be a caching problem, is vlc or parole the "wrong" videoplayer?

Thanks,
Harald

2015-09-09 20:15 GMT+02:00 Robert Dinse <nan...@eskimo.com>:


 Herald, did you ever do the ping as I suggested while trying to watch
video to see if perhaps there are some bandwidth / latency issues?

 Another thing you might do is run a top on the server and watch the
load while you're playing video, from a command line do a free and make sure
you're not swapping.

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On Wed, 9 Sep 2015, Harald Heigl wrote:


Date: Wed, 9 Sep 2015 20:11:29 +0200
From: Harald Heigl <harald.heigl1000+x...@gmail.com>
To: Robert Dinse <nan...@eskimo.com>
Cc: Harald Heigl <harald.heigl1000+x...@gmail.com>,
x2go-user@lists.x2go.org

Subject: Re: [X2Go-User] Questions regarding mate/video quailty

Hi,

My server is still a core2duo, perhaps this is the problem? Anyone
here with similar "low" hardwaresettings?
I don't know what preemtive settings mean either I have to admit, I
got that information from fedora side. And I tried a real preemtive
kernel for fedora, but I don't see any differences (perhaps a very
small improvement, but this might be my subjective view).
As stated in my last mail ping are beyond 0.5ms, nearly every ping
before, during and after playing video with a handful spikes not
excedding 2-3ms.

Could it be my cpu, my graphic card on server side or my whole system?
I don't think the client (cause I used another client) or the network
(pings, network transfers ok) is the problem. But cpu is not over 20%
too. I haven't configured anything in x2goserver, just standard.
On my server nomachine is installed for testing if this matters
(nomachine is faster than x2go, but not really fast). Are there any
logs I can search. I even turned off selinux und firewall for testing
but it had no impact, firewall shouldn't be the problem either, cause
we go over ssh.

No idea right now...

Thanks,
Harald



2015-09-07 23:30 GMT+02:00 Robert Dinse <nan...@eskimo.com>:



 I get real time video, server I7-2600 100mb/s backbone, client, old
MacPro-1 4CPU 4G of RAM running Ubuntu 15.04 with preemptive kernel on
15mb/s Comcast cable modem, server running Fedora 22 with a pre-emptive
kernel, don't understand what "preemptive settings" mean, either kernel
is
built so that it can be preempted or not.  I can get 30 frame/second
video
not 1/2 frames per
second.  And even with a non-preemptive kernel I only see occasional
glitches
not 1 frame every ten second, so you've got something still really
broken.
Did you try the ping I suggested?


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246-6874.

On Mon, 7 Sep 2015, Harald Heigl wrote:


Date: Mon, 7 Sep 2015 23:24:42 +0200

From: Harald Heigl <harald.heigl1000+x...@gmail.com>
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] Questions regarding mate/video quailty

Hi,

I've got some more information: the kernel itself is not preemptiv,
but there are some preemptiv settings set. But I used an alternative
preemptive fedora kernel and found only small changes. What I found:
- In vlc I have to deactivate overlay-mode
- In Parole I have to set "No Xv" instead of "X11/XShm/Xv" in
settings, videooutput.

Parole works better than vlc and is at around 1

Re: [X2Go-User] Questions regarding mate/video quailty

[Harald Heigl]

Hi,

I have still the problem, that running video over x2go (per vlc or
mates default paroleplayer) is really slow and laggy.
server: Fedora 22, core2duo, x86, 4.0.1.19
client: linaro, cubieboard, armhf, 4.0.5.0

- I have testet with another x86 computer as client with no change
- I have connected the server with the other x86 client directly to
find out if the network has a problem, with no change
- I have tried iperf, but the speed of my gigabit lan is fast
- I have changed the graphiccard of my server (if that changes anything)

I have to admit, that my server is an old core2duo/computer, with old
radeoncard, ssd and 6GB RAM, but I just want to connect a single user
from another room inside my home. (and at max one physical user)
Fedora 22 was set up on the server 2 months ago with a fresh install
and a lot of packages like libreoffice, 2 browsers, ... . x2goserver
was set up from the repos.
Running videos directly on the computer is no problem.
Are there any limitations or something  I can check (logs, something I
can try out) or are there any minimum system requirements?

Thanks,
Harald


2015-08-24 22:30 GMT+02:00 Harald Heigl :
> Hi,
>
> Thanks for pointing this out. I had x2goserver 4.0.1.19 on fedora and
> 4.0.1.xx on my client, which seemed to be an old version. I assumed
> server and client-version belong together. I installed 4.0.5.0 (from
> ubuntu armhf repos) on the client but had the same difficulties,
> eventhough it was better and more fluent now.
> I'll see if I can find another x86 computer and try it from there. I
> think my client is the problem (or the armhf-packages not 100% the
> right one for cubieboard).
> I will need some days to identify the guilty part, I'll write her again.
>
> Thanks for all the information,
> Harald
>
> 2015-08-24 19:16 GMT+02:00 Orion Poplawski :
>> On 08/24/2015 06:37 AM, Harald Heigl wrote:
>>> Hi,
>>>
>>> Thanks for the information I just used the
>>> fedora(server)/linaro(client) included repos and they have both some
>>> 4.0.1 ...
>>> Fedora won't be a problem (I can see a x2go-repo in the wiki), I hope
>>> I find some armel-builds for my cubieboard. any hints? (sometimes
>>> rasbperry-builds work as well)
>>>
>>> I'll test it at home a little bit later and tell you.
>>
>> You seem to be mixing client and server versions here a bit.  Fedora has
>> x2goserver 4.0.1.19 (latest) and x2goclient 4.0.5.0 (latest).  The version
>> numbers are not linked.
>>
>>
>> --
>> Orion Poplawski
>> Technical Manager 303-415-9701 x222
>> NWRA, Boulder/CoRA Office FAX: 303-415-9702
>> 3380 Mitchell Lane   or...@nwra.com
>> Boulder, CO 80301   http://www.nwra.com
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Re: [X2Go-User] Questions regarding mate/video quailty

[Robert Dinse]

 I'm not familiar with your client machine but on the server side, build
a kernel with kernel pre-emption enabled, for myself at least it helped
considerably.

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On Sun, 6 Sep 2015, Harald Heigl wrote:


Date: Sun, 6 Sep 2015 22:01:48 +0200
From: Harald Heigl <harald.heigl1000+x...@gmail.com>
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] Questions regarding mate/video quailty

Hi,

I have still the problem, that running video over x2go (per vlc or
mates default paroleplayer) is really slow and laggy.
server: Fedora 22, core2duo, x86, 4.0.1.19
client: linaro, cubieboard, armhf, 4.0.5.0

- I have testet with another x86 computer as client with no change
- I have connected the server with the other x86 client directly to
find out if the network has a problem, with no change
- I have tried iperf, but the speed of my gigabit lan is fast
- I have changed the graphiccard of my server (if that changes anything)

I have to admit, that my server is an old core2duo/computer, with old
radeoncard, ssd and 6GB RAM, but I just want to connect a single user
from another room inside my home. (and at max one physical user)
Fedora 22 was set up on the server 2 months ago with a fresh install
and a lot of packages like libreoffice, 2 browsers, ... . x2goserver
was set up from the repos.
Running videos directly on the computer is no problem.
Are there any limitations or something  I can check (logs, something I
can try out) or are there any minimum system requirements?

Thanks,
Harald


2015-08-24 22:30 GMT+02:00 Harald Heigl <harald.heigl1000+x...@gmail.com>:

Hi,

Thanks for pointing this out. I had x2goserver 4.0.1.19 on fedora and
4.0.1.xx on my client, which seemed to be an old version. I assumed
server and client-version belong together. I installed 4.0.5.0 (from
ubuntu armhf repos) on the client but had the same difficulties,
eventhough it was better and more fluent now.
I'll see if I can find another x86 computer and try it from there. I
think my client is the problem (or the armhf-packages not 100% the
right one for cubieboard).
I will need some days to identify the guilty part, I'll write her again.

Thanks for all the information,
Harald

2015-08-24 19:16 GMT+02:00 Orion Poplawski <or...@cora.nwra.com>:

On 08/24/2015 06:37 AM, Harald Heigl wrote:

Hi,

Thanks for the information I just used the
fedora(server)/linaro(client) included repos and they have both some
4.0.1 ...
Fedora won't be a problem (I can see a x2go-repo in the wiki), I hope
I find some armel-builds for my cubieboard. any hints? (sometimes
rasbperry-builds work as well)

I'll test it at home a little bit later and tell you.


You seem to be mixing client and server versions here a bit.  Fedora has
x2goserver 4.0.1.19 (latest) and x2goclient 4.0.5.0 (latest).  The version
numbers are not linked.


--
Orion Poplawski
Technical Manager 303-415-9701 x222
NWRA, Boulder/CoRA Office FAX: 303-415-9702
3380 Mitchell Lane   or...@nwra.com
Boulder, CO 80301   http://www.nwra.com

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Re: [X2Go-User] Questions regarding mate/video quailty

[Stefan Baur]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256

Am 23.08.2015 um 23:43 schrieb Harald Heigl:

 2) After installing mate on the server, I didn't see an option
 mate on the client (4.0.1), only gnome, kde, lxde, xfce, so I
 choose other desktop (don't know if it's called exactly so, cause
 I have a german interface) and mate-session as parameter. Is this
 the correct way to use mate?

That's because you are using a severely outdated client.
Current client version is 4.0.5.0, please update to that version.

Kind Regards,
Stefan


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Re: [X2Go-User] Questions regarding mate/video quailty

[Robert Dinse]

On Sun, 23 Aug 2015, Harald Heigl wrote:


Hi everyone,

I have following szenario:
- server: Fedora 22 with gnome 3.16 (and mate)
- client cubietruck (mini client like raspberry)
- connected via 1Gb-LAN-cable
- using LAN quality and no compression (but I also tried 16MB-jpg with
no difference)

1) As I read in the docu, gnome 3.12+ is not supported, are there any
plans in the near future?
2) After installing mate on the server, I didn't see an option mate
on the client (4.0.1), only gnome, kde, lxde, xfce, so I choose other
desktop (don't know if it's called exactly so, cause I have a german
interface) and mate-session as parameter. Is this the correct way to
use mate?
3) And this is my main point: Working seems to be fine so far, but
when I start a video in mate (over x2go) it opens parole media
player (seems to use gstreamer) and it says: gstreamer backend error
- Configured videosink video is not working. If I start videos with
vlc they come up but are really slow und showing only each 5 seconds
or so. If I use nomachine v4 they are not as fluent as if I sit in
front of my server, but at least they are acceptable. I don't have
the gstreamer problems there. Is there something I can configure, does
someone know this problem? videos I tested with are h.264 encoded if
that matters.

Thanks in advance,
Harald
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 I get real time video so definitely something is not right with your
setup.  With a stock kernel I'll see occasional stutters but only maybe 1/10th
a second not five seconds.  With a pre-emptive kernel, no stutter at all,
and this is just with a 100-base-T connection at the server and a 15 mb/s
cable modem connection at the client.  So definitely something is not right
with your setup.
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[X2Go-User] Questions regarding mate/video quailty

[Harald Heigl]

Hi everyone,

I have following szenario:
- server: Fedora 22 with gnome 3.16 (and mate)
- client cubietruck (mini client like raspberry)
- connected via 1Gb-LAN-cable
- using LAN quality and no compression (but I also tried 16MB-jpg with
no difference)

1) As I read in the docu, gnome 3.12+ is not supported, are there any
plans in the near future?
2) After installing mate on the server, I didn't see an option mate
on the client (4.0.1), only gnome, kde, lxde, xfce, so I choose other
desktop (don't know if it's called exactly so, cause I have a german
interface) and mate-session as parameter. Is this the correct way to
use mate?
3) And this is my main point: Working seems to be fine so far, but
when I start a video in mate (over x2go) it opens parole media
player (seems to use gstreamer) and it says: gstreamer backend error
- Configured videosink video is not working. If I start videos with
vlc they come up but are really slow und showing only each 5 seconds
or so. If I use nomachine v4 they are not as fluent as if I sit in
front of my server, but at least they are acceptable. I don't have
the gstreamer problems there. Is there something I can configure, does
someone know this problem? videos I tested with are h.264 encoded if
that matters.

Thanks in advance,
Harald
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