request for some help with performance and sound
rdoyle at islandnetworks.com
Tue Feb 5 19:13:15 GMT 2008
On Tue, 2008-02-05 at 13:42 -0500, Patrick McKnight wrote:
> I am new to Edubuntu but not new to linux (using exclusively since
> 1996). Recently, I installed Edubuntu in my research lab.
> The install was a replacement for an Ubuntu (Dapper) setup with LTSP
> that was working OK but tended to crash a fair bit. I thought an
> upgrade was in order so I moved ahead. Perhaps my move was a bit in
> haste since many of the features that were working before no longer
> work. Two features, in particular, are causing me headaches. Can
> anyone out there offer some advice on the following?
> 1. Video performance. I have 5 clients hooked up to a Gb switch that
> goes directly to an exclusive NIC on my dual cpu, dual core server (8
> GB of RAM, 80 GB SATA drive, no RAID). The clients are all PXE thin
> clients with 512 MB of RAM and via chipsets (most likely they are EPIA
> boards in tiny cases, I just never looked inside). The video
> performance on my thin clients is atrocious. I feel like I have gone
> back to Windows 2.0 on a 286 - yes, that slow. I literally see the
> screen painted before my eyes. Running anything like VMware or
> Win4Lin is out of the question. So I ask, what might be the hangup?
> Network? I figure the network connection is fine.
> Server? The server CPU and RAM are fine but the disk is definitely
> slow. That should not make a difference on one test client, or should
> Clients? Not likely. They ran just fine before.
But aren't they using a different driver now, since you are using a
Were you using the xorg driver for the via chipset in both cases?
> Edubuntu setup? Perhaps. But I am not sure how to tune the
> 2. Sound. Sound does not work. I know to enable sound I need to
> enable sound in the lts.conf file. I have already done that. Is
> there another step that I am missing? Perhaps software that is not
> installed by default. I tried everything. From installing esound,
> pulseaudio, etc. to messing around with my asound.conf file. The thin
> client just refuses to see any sound driver or daemon.
> Any help on either of these would be greatly appreciated. I need to
> get these thin clients back up and running so my students can resume
> their work (for me). Thanks greatly in advance for any pointers.
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