Another easy question (I'm assuming)... I originally installed Ubuntu 12.04 LTS 64-bit Server (Alternate CD) and then I installed various desktop environments like Awesome, Xfce, MATE, etc. Is there an advantage I'm missing out on by not installing Xubuntu, Lubuntu, or some other flavor that is an actual distribution with the desktop environments pre-packagesd and configured? Am I going to run into issues or inefficiencies by installing these lightweight desktop environments via PPA after the fact?
Thanks guys, mike On 11/17/2014 03:37 PM, John Hupp wrote: > Good to know. I was aware that graphics chipsets and drivers can make a > big difference, but it's always helpful to get specific info about what > works and what doesn't. > > Someone may know how to make the Intel GMA 3150 perform better via > entries in LTS.CONF or otherwise, but I myself don't have a recommendation. > > On 11/17/2014 3:48 PM, Mike Cammilleri wrote: >> More info! >> >> I was using a Zotac ZboxSD-ID13 for my thin client which has "Intel >> Graphics Media Accelerator 3150" graphics. >> http://www.newegg.com/Product/Product.aspx?Item=N82E16856173036 >> I added 4GB of RAM when I was troubleshooting. >> >> I also had Firefox and Google Chrome running as local apps. Although >> the desktop environment ran smoothy with MATE and Xfce, the browsers >> were still unbearable. >> >> I switched now to a Dell Optiplex 7010 as my thin client with "Intel >> HD 2500 Integrated Graphics" and it works great. So, apparently there >> is a huge difference between those integrated graphics sets that was >> giving me terrible performance with my browsers, in addition to Unity. >> Keep in mind my LTSP server is running 12.04 LTS now. >> >> The problem now is upgrading the desks around the department that are >> using the junky Intel GMA 3150. >> >> >> On 11/17/2014 10:21 AM, John Hupp wrote: >>> You have to see the right source reading, which is hard to find, but >>> I was aware that Alkis G and other prime movers don't much like LTSP >>> with Ubuntu 14.04. >>> >>> Alkis' summary is (in Greek) at >>> http://alkisg.mysch.gr/steki/index.php?topic=5857.msg66678#msg66678 >>> >>> Google translates this roughly as (and I think 4.12 should be >>> translated as 12.04): >>> / >>> //Disadvantages of 4.14 compared to 4.12:// >>> //- It does not support some ancient graphics cards as S3Virge, >>> Trident,// >>> //Rage etc., whose drivers based on an architecture called XAA, which// >>> //repealed. At 14.04 they play with the driver VESA, which is much >>> slower// >>> //and does not support all resolutions.// >>> //- It has various issues with the Greek. For example, I think it is >>> difficult to// >>> //write in Greek fullscreen SDL apps like tuxtype, should make the >>> nonfullscreen.// >>> //- It has some thematakia the panel (panel), icons (applets) and the// >>> //menu, but OK are not particularly serious.// >>> // >>> //Advantages of 14.04 compared to 4.12:// >>> //Upon ... you tell me anything to write here. Okay, newer versions of// >>> //programs, but I did not need a specific feature of these ... The >>> kernel of// >>> //14.04 to 12.04 is available with the name linux-image-generic-lts- >>> trusty,// >>> //so new hardware is supported.// >>> // >>> //So I would suggest anyone who is not totally specific reason to do >>> update, can// >>> //not press upgrade.// >>> //If you find along the way so why do it.// >>> //A few days will get renewed and live CD installation 12.04.5 for >>> those who// >>> //make new facilities.// >>> //We live CD 14.04 and available, but for the above reasons probably >>> best not// >>> //to use those who do not have a specific reason ... At some point it >>> would be// >>> //written and wiki page for the action to make those who choose to >>> upgrade./ >>> >>> In general I think they recommend staying with Ubuntu 12.04 LTS at >>> this point, and if you need more current hardware support, installing >>> the LTS Enablement Stack. See >>> https://wiki.ubuntu.com/Kernel/LTSEnablementStack >>> >>> ------------------------------------------------------------------------ >>> >>> That said, I'm trying to work with Lubuntu 14.04 (LXDE) and LTSP, and >>> I have been trying to verify what can or cannot be done with video >>> streaming to thin clients. Especially Flash, but secondarily HTML5. >>> >>> This is because I am hard-headed (and because I have a bunch of old >>> thin clients). >>> >>> Because the brief advice I have seen here or there is that (in >>> addition to the 12.04 recommendation), if you want to run Flash on >>> LTSP, use fat clients. Video streaming in general would probably net >>> the same advice. >>> >>> And I think that I have pretty much proven that to be good advice >>> (with perhaps one exception, which I'll get to). I'm finding that to >>> run Flash, the thin client has to be very nearly at the same hardware >>> spec as one would need to run the machine standalone or as a fat client. >>> >>> That is, a Pentium 4 at around 2.4 GHz is the approximate point at >>> which Flash runs decently in a default window size at 360p quality as >>> a thin client. But with that processor, you could also run the >>> machine standalone with a hard drive and get nearly the same >>> performance. (Though you might need more memory to run the machine >>> standalone than as a thin client.) >>> >>> YouTube set to HTML5 mode performs a little better than Flash on the >>> same hardware. >>> >>> I do wonder this -- which may be the exception I referred to -- would >>> a thin client graphics card with a bona fide GPU support a low-spec >>> CPU such that Flash would work well? (Granted, this would not scale >>> well in any case due to network bandwidth usage. I wonder nonetheless.) >>> >>> But unless one could buy a bunch of graphics cards like that at >>> fire-sale prices, it may be an academic issue only. >>> >>> On 11/17/2014 10:24 AM, Mike Cammilleri wrote: >>>> I want to thank everyone for their suggestions. I'm definitely seeing >>>> better performance when trying different desktops. I guess I'm just >>>> surprised that LTSP documentation doesn't emphasize how useless an >>>> out-of-the-box install is with Ubuntu. Unity would be the default for >>>> anyone installing LTSP and it appears to be quite useless. >>>> >>>> I started with Gnome Classic No Effects which is better and comes with >>>> the default install of Ubuntu 14.04 LTS. I have also tried Xfce. I will >>>> try MATE next since it has been recommended by many. >>>> >>>> I would be curious to see a poll that shows what desktop most LTSP users >>>> are using and which exhibits the best performance for multiple users. As >>>> it stands, if I don't block YouTube streaming, one stream can cause >>>> jumps up to 70mb/s through a gigabit connection which can slow down >>>> traffic for everyone. This is has now become my main concern even with >>>> these lighter weight desktops. >>>> >>>> Thanks guys, >>>> mike >>>> >>>> >>>> On 11/17/2014 02:53 AM, Harry Lavender wrote: >>>>> Hi, >>>>> >>>>> You will need to install a different window manager, for example MATE, >>>>> or LXDE, and then use it when logging in via LightDM, you can then set >>>>> this as the default. MATE and LXDE do not use Compiz as their backend, >>>>> so will not have the issues you are facing. >>>>> >>>>> http://www.omgubuntu.co.uk/2014/08/install-mate-desktop-ubuntu-14-04-lts >>>>> >>>>> The above link explains how to install MATE onto a vanilla install of >>>>> 14.04. >>>>> >>>>> Good luck! >>>>> On 17/11/14 01:30, James Linder wrote: >>>>>>> On 17 Nov 2014, at 7:09 am,[email protected] >>>>>>> wrote: >>>>>>> >>>>>>> I have tried setting up an LTSP server as a VM and I have the same >>>>>>> problems. So perhaps it is my thin-client. >>>>>>> >>>>>>> A couple things regarding Harry's suggestions as well.... >>>>>>> >>>>>>> How does one get rid of compiz or disable it? If I apt-get remove compiz >>>>>>> it will also remove ubuntu-desktop. I think I need ubuntu-desktop, so >>>>>>> not sure how to get rid of compiz. I did have to install gconf-editor >>>>>>> and disable apps->metacity->general compositing_manager and >>>>>>> compositor_effects so that the gnome terminal wouldn't always be on top. >>>>>>> >>>>>>> Are there other post-installation steps that should be done after >>>>>>> setting up an out-of-the-box LTSP server that is not really documented? >>>>>>> >>>>>>> I'm using Intel GMA 3150 onboard intel graphics -- doesn't Ubuntu >>>>>>> already contain all Intel drivers? According to their site: "Most >>>>>>> versions of the Linux* operating system include Intel? graphics drivers. >>>>>>> Intel recommends checking with your Linux distribution vendor or >>>>>>> computer manufacturer for precompiled driver packages." >>>>>> It all depends on what you are trying to achieve. >>>>>> I use xfce or lxde and never have the problem, but as an old fart I >>>>>> think bendy-streachy-flashy desktops are APITA. >>>>>> >>>>>> James >>>>>> >>> > > > > ------------------------------------------------------------------------------ > Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server > from Actuate! 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Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk _____________________________________________________________________ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
