[Pkg-ltsp-devel] Bug#767764: ldm: setting LDM_DIRECTX=True crashes gnome, gnome-classic, cinnamon, cinnamon-2d

[Holger Sander]

Am 02.11.2014 20:38, schrieb Vagrant Cascadian:
> 
> Control: reassign -1 ldm
> Control: retitle -1 ldm: setting LDM_DIRECTX=True crashes gnome, gnome-classic, cinnamon, cinnamon-2d
> Control: tags -1 moreinfo
> 
> On 2014-11-02, Holger Sander wrote:
>> i am setting LDM_DIRECTX=True in lts.conf to speedup X. Now i can't start Gnome
>> or cinnamon. The outher Desktops i try work well (Mate, kde, blackbox, openbox)
> 
> What version of ldm are you running? A newer version just recently
> migrated to jessie/testing. I'd also be curious if you have the same
> problems running a wheezy system.

I am testing for a few days/weeks and the error is still there. I update
this morning and do testing again. The version (jessie) of:
ldm-server 2:2.2.15-1
ltsp-server 5.5.4-1
ltsp-client 5.5.4-1
running on a dedicate server AMD64 6 core 16G-Byte.
On the ltsp-server ligthdm is running. I can log in local using gnome,
gnome-classic, cinnamon (3d/2d), mate, kde .......

Running ltsp-wheezy as a dum(x) on Dom0 squeeze:
On wheezy i can use gnome-classic but not gnome, Mate (backports), KDE
plasma and LXDE are running fine. I am playing with totem a video
1920x1080 over Network. No problem.

> Running as fat or thin client?
All testing i do with thin-client! No Fat-client.

> 
> If you could include the output of "ltsp-info" running on the LTSP
> server, that would be helpful. Also, the contents of lts.conf would also
> be very useful (/srv/tftp/ltsp/*/lts.conf
> /var/lib/tftpboot/ltsp/*/lts.conf /opt/ltsp/*/etc/lts.conf).
I have only a lts.conf in /opt/ltsp/*/etc/lts.conf.
I append the files.

> 
> 
>> If i use:
>> X -query server :1
>> or login over ssh and then start session with
>>   gnome-session
>>         or
>>   cinnamon-session
> 
> From the thin client itself? how do you run this?
on the server:
ltsp-chroot
  passwd (adding password for root, to login on thin-client)
/etc/ligthdm/ligthdm.conf
  [XDMCPServer]
     enable=true
on the client:
CTRL-ALT-F1 and login as root
adduser test
logout an login as test because root can't start X.
X -query servername/ip :1
choose the session and login.

> This is somewhat surprising; I haven't had the best luck with any of
> those desktops using with LDM as a thin client...
I started with ltsp on wheezy as dum(x) on a squeezy server about one
year ago. But I had sound-problems (solved after updates) and no
mate-desktop (now in backports). And there was a bug in the DHCP-Server
and DDNS with ip4+ip6. The bug ist solved in jessie (wheezy? I don't
now.). I don't like gnome3. So i stop testing and beginn new tests with
jessie.

In jessie i have sound and mate runs very good. But for other users i
want gnome, cinnamon. Running jessie as dum(x) under squeeze i have to
compile the kernel to change the compressionmethod. But i can't run
neither gnome nor cinnamon per remote. So i begin new test on a dedicate
server.
The next test will be:
-setup ltsp-jessie under dom0-jessie
-setup a new one jessie under dom0-squeeze, because one year ago i
install mate vom mate-desktop.org and I'm not sure to deinstall it right.

The error i report appears on a clean installation!

> 
> Does setting X_SMART_COLOR_DEPTH=false in lts.conf help?
No, i test it with false an true.
> 
> 
>> I test it with old thin-client (i586, Nvidia GeForce2 MX/MX 400) and a new one
>> (amd64, Nvidia) with nouveau.
> 
> I'll see if i can reproduce the issue myself, though I don't have
> similar hardware...
Ok, i have diffrent hardware and can testing for you, but i need help.
Both thin-clients use nvidia. The next test i will do is with my laptop
as thin-client using ati. It may be a X-Server-Error.

Does it help to change the server to i386? I'm using amd64 on the server?
Does it help to change the graficcard from nvidia to ati on thin-client?

I have no time to write software, but i want to help with tests. I have
no problem to patch software or install a testing version.

> live well,
>   vagrant
live well,
Holger Sander

-- 
Holger Sander
Yorckstraße 3
27755 Delmenhorst
Germany
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