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


Channel log from 12 June 2021   (all times are UTC)

05:42ltspbot has joined IRC (ltspbot!~supybot@devs.ts.sch.gr)
05:42
<alkisg>
!ltsp.conf
05:42
<ltspbot>
ltsp.conf: Configuration file for LTSP: https://ltsp.org/man/ltsp.conf/
05:43
<alkisg>
Search for "Multiseat" inside that page
05:43
<import>
ok
05:43
<alkisg>
Essentially, it just works, you don't need to do anything at all
05:43
These lines in ltsp.conf are only for advanced scenarios, they're not even needed for the simple case
05:44
<import>
multiseat mean that each client support 2 monitor, 2 keyboard, 2 mouse?
05:46
<alkisg>
Right. Two (or more) monitors per box
05:47
2 keyboard, 2 mice, 2 persons
05:47
<import>
:O
05:49
I should look a mother board with 2 or more vga or hdmi ports and severals usb ports
05:50
<alkisg>
No
05:50
It needs an extra graphics card, with 15 euros from ebay
05:50
So if a PC costs 300 for the box and 100 for the peripherals, in multiseat ltsp you need 250 for one box (you exclude the disk cost), plus 200 for the peripherals, plus 15 for the graphics card
05:51
I.e. instead of 800 for two seats, you need 475
05:51
<import>
:O
05:51
<alkisg>
For raspberries, you'd need 2*200 = 400. Small difference, for a lot better result.
05:54
E.g. https://www.ebay.com/itm/294151979813
06:10
<import>
how much memory and cpu should clients have to multiseat?
06:22
<alkisg>
It depends on what they run
06:23
If we assume that a normal user in a normal PC needs 4 GB RAM, then LTSP multiseat needs 7 GB, as some is shared
06:24
The CPU usually isn't a big problem, if it's a recent dual core etc pc. Don't buy atoms though.
06:33
The added benefit of multiseat vs rasbperries, is that if rpis get old, you throw them away; while for multiseat PCs, you just remove the graphics card and use them as single seat for a few years more
06:34
<import>
APU Integrado AMD E1-6010 CPU is well for clients?
06:36
this include hdmi and vga port
06:36
<alkisg>
https://www.cpubenchmark.net/cpu.php?cpu=AMD+E1-6010+APU&id=2308
06:36
<import>
?searchVariation=82869784381#searchVariation=82869784381&position=31&search_layout=grid&type=item&tracking_id=6d68fafc-0028-4f08-b6a8-82d505fbb1eb
06:36
<alkisg>
540 passmark
06:36
Recent PCs have > 5000
06:36
<import>
?searchVariation=82869784381#searchVariation=82869784381&position=31&search_layout=grid&type=item&tracking_id=6d68fafc-0028-4f08-b6a8-82d505fbb1eb
06:37
https://articulo.mercadolibre.com.mx/MLM-911862586-kit-de-actualizacion-biostar-amd-cpu-e1-6010-memoria-4gb-_JM?searchVariation=82869784381#searchVariation=82869784381&position=31&search_layout=grid&type=item&tracking_id=6d68fafc-0028-4f08-b6a8-82d505fbb1eb
06:38
<alkisg>
Get an i3 or ryzen, not atoms etc
06:38
At least 2000 or 3000 passmark score
06:39
<import>
ok
06:39
and server?
06:39
<alkisg>
How many clients?
06:40
<import>
10
06:40
<alkisg>
An i3 with an ssd disk for the server
06:41
Also buy a second network card (=10€) to make things a bit faster
06:41
10 clients means 20 seats, right?
06:42
<import>
5 clients 10 seats
06:42
<alkisg>
OK
06:42
Buy 6 i3 computers, even refurbished are OK, with 8 GB RAM. One of them will be the server.
06:46
You don't need a second network card for only 10 seats
06:46
<import>
ok
06:47
I need look refurbished supplier
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