freeze of thinclient - Re: Some trouble with fresh 7.10/ltsp - now fresh 7.04

[Dean Mumby]

Gavin McCullagh wrote:
> Hi,
>
> On Mon, 14 Jan 2008, Dirk wrote:
>
>   
>> myselve wrote:
>>     
>>> I have now: fresh 7.04 amd64, no patches, no changes, working clients 
>>> (1280x1024), console still unchangable 640x480
>>>
>>> Client freeze after 1,5 hour working (no mouse, nothing). Client working 
>>> perfect with other servers. No syslog-messages.
>>>   
>>>       
>> hmm, second freeze while opening the same 1,7MB-eMail with thunderbird 
>> like the first time (Devon IT LT210). Has jpg, pdf and doc attached.
>> No messages. ssh to the server is okay.
>>
>> Tried second Client (FSC FUTRO A230). Didn't freeze while opening this 
>> mail.
>>     
>
>   
Assuming Gavin is correct below what are the differences between these 
two units ?


> This sounds almost certainly to be the same issue we've discussed here
> before, with firefox instead of thunderbird.
>
> https://lists.ubuntu.com/archives/edubuntu-users/2007-August/thread.html#1811
>
> What happens is firefox (or in your case thunderbird) on the server sends a
> shed load of image data to X on the thin client.  So much that X grows to
> use all available memory on the thin client and the client crashes.  It
> will help (if you can do it) to have extra memory in the thin client.
>
> There are a couple of not too well developed workarounds discussed in the
> thread.  One is a patch to firefox v3 (thunderbird would need a separate
> fix).  The other is a "shim" file which can apparently limit the amount of
> memory X will allocate.
>
> https://lists.ubuntu.com/archives/edubuntu-users/2007-December/003060.html
>
> This is a difficult problem to fix I'm afraid.
>
> Gavin
>
>
>