Linux-Hardware Digest #293, Volume #14 Sat, 3 Feb 01 15:13:07 EST
Contents:
Re: Recommendations for ethernet cards and other hardware wanted... ("Peter T.
Breuer")
Re: Linux solutions for VoIP and text editors ("Bjoern A. Zeeb")
USB (tam)
Re: NEC SuperScript @ 600x600 dpi? (Mark Bratcher)
HP 840C (Juergen Leeb)
Video Capture using Rockwell based card (Pace webcam card) ("Colin Anderson")
Re: HP 840C (Mark Bratcher)
IBM ServeRaid with TurboLinux 6.0 (Pierre)
Re: cannot dial modem through ttySx (Darren Davison)
no login ("Harald Gillwald")
Re: HP 840C (Ken Moffat)
CT5880 Sound chipset ("Richard Wallace")
fm 801 ("Stef Club internet")
Linux on KT7-RAID (Samir Moulay)
Non-novice PS/2 mouse/gpm prob maybe more RedHat 6.2
----------------------------------------------------------------------------
From: "Peter T. Breuer" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.networking,comp.os.linux.x
Subject: Re: Recommendations for ethernet cards and other hardware wanted...
Date: Sat, 3 Feb 2001 16:50:42 +0100
In comp.os.linux.hardware Andrew Robbie <[EMAIL PROTECTED]> wrote:
> In article <[EMAIL PROTECTED]>, "Peter T. Breuer"
> <[EMAIL PROTECTED]> wrote:
>> > of use to someone besides me. The overall goal of this project is to
>> > have a 512 processor (1 GHz +) cluster over a span of a year or
>> > two. Right now, I'm looking at buying 64 processors.
> I hope you are talking to some of the people who will have to maintain
> and program this behemoth. Do the maths for 512 CPUs and calculate the
> MTBF. Then realise that if you want good uptime you will need reliable
> components (ie not always the cheapest) and some redundancy in hardware
> and software.
Well, there is no such thing. He should calculate about 10% of disks
failing in the first year, and maybe 30% of all machines arriving with
at least one major component (mobo, memory, cpu, disk, nic, graphics)
faulty. Yes, he needs to overbuy with that in mind.
>> cards are .. they could be up to three years old. I haven't checked
>> which drivers are best for them either. Too many variables. The cards
>> also seem only to be able to get about 60% of the available bandwidth,
>> even on switched 100BT networks.
> Switched doesn't mean 'no collisions'. The common situation, eg a
> single server and many clients, is moderately pathological. I would
The switches are 3com full duplex. The servers and clients are all
switched through the same pair of 24-way switches, and there are about
40 clients and two servers in a bunch. Traffic is pretty miniaml except
when I'm testing, and is confined to nfs udp.
> say 60% of maximum is pretty good.
The machines for these are P200 classics - servers are dual ppro-200s.
The clients are VX boards. All Microstar as I recall. We also have some
P100s thrown in, with worse boards.
>> OTOH the rtl8139 cards I have have never given trouble any time. And
>> they use about 100% bandwidth. But given their amazingly cheap price
>> (about $25 ?) I expect to find someday that I have received a batch of
>> no-hopers. Fine .. I'll can that when it arrives.
> Perhaps your rtl8139s are in faster/different computers? Different
> workload?
The rtl839s are indeed in different clients - duron 600s with QDI
KT boards (the ones I have bought, anyway). The servers and switches
are the same.
>> >>> priced around $50-$100, large disks (what is the largest IDE disk
>> >>Go for a plain dual asus or abit BX board.
> Why? So he'll be buying obsolete and slow hardware?
No. BX boards are about as fast as they get, and are reliable. All bugs are
known (mainly being overheating on the big chip at the center of the
motherboard if you run dual in a big way). I prefer known bugs to unknown
ones any day.
Besides, file servers don't have to be particularly fast .. and even
so, they are. I am happy doing all my compilations on dual PPro 200s
with scsi disks (mmmmm ...). I see no great speedup even with the
PIII 800s that I get nowadays. The cpu is never maxed.
Heck, I am serving mail for the whole department from a P100 - it
takes about 2000 hits a day for my mail alone! And it does NFS for
about 50 clients (autofs helps).
Come to that, the http server is also a P100.
>> > So this brings up another issue. The asus and the abit boards use the
>> > VIA chipset (as opposed to the Intel chipset) on the motherboards. My
>>
>> I do not believe they do - they are BX boards! Mind you, I cannot check
>> right now.
> You are wrong. They do have 440BX boards still (also GX) but the hot
The BX boards are the ones I was referring to as being my
recommendation.
> new boards are all VIA,etc. Intel have completely dropped the ball.
> If you are willing to pay for RDRAM the i840s can be used. But the
> non-intel chipsets seem to work pretty well.
What is the advantage in RDRAM, apart from increased price? All the
measures I am aware of show none in particular.
>> > vendor suggests that these might not be as stable as the Intel
>> > chipsets. Does anyone have information about this?
> Sounds like your vendor wants to sell you something with Intel inside.
Uh ... while not buying intel boards is a good idea, buying boards
without intel chipsets on is not a good idea. They are not as widely
tested, for one thing. You will get interesting "quirks".
> Supermicro make the SUPER 370DE6 (or is it DER?) which has AGP as well
> as 64 bit PCI. We plan on buying some.
>> > How do the onboard ethernet controllers on these motherboards work?
> They communicate with the 'south bridge' part of the chipset directly
> or they are hardwired PCI devices. Similar to the IDE support.
Except that you are reliant on the board manufacturer to have
implemented the connection without crossing the wires somewhere. Which
is pretty unlikely in my experience. Go for offboard anything. At least
you can replace it.
>> > What about RAM? Does any ECC RAM work or do certain manufacturers have
>> > better reptutations?
>>
>> I am not using ECC ram - too difficult to get hold of and impossible to
>> mix later. I only have bad ram when ram is in short market supply - but
>> of course I don't know for sure :-). Nevertheless my experience is that
>> once ram has been tested thoroughly, bit errors do not come from ram
>> but from overheated cpus.
> Overheated CPUs causing RAM errors? Or over-clocked CPUs producing the
Overheated cpus producing bit errors. Probably cache faults.
> wrong result? Ever heard of ionizing radiation?
Yes. Are you planning on getting a tan?
"Overclocking" is not a term that has any meaning on its own. You run
cpus at the clock rate that they need in order to keep the delay
propagation within erroring limits (and beyond!) at every part of the
chip. Unless you like async chip designs, that is.
Those limits are different for every run, every batch, and every wafer,
and every chip.
> Anyway, your experience ain't backed up with any understanding. RAM
> error rates in a farm of 64 machines (* 512MB = 32GB) could be a
> significant hassle. ECC aids in diagnosis of problems, detection of
They could be, but then cpu-based errors are more likely. I run
significant computing tasks every day on lots and lots of identical
machines, all with heavily tested ram, and some days show up phantom
md5sum errors and some don't. Those machines that show errors correlate
well with those whose fan fails some weeks later.
> which dimm is faulty and can even correct some errors.
Fantastic batman - as if we didn't know. The point is that very few
errors are memory based in origin, as far as I can tell, running
on the order of 500 machines myself. On one batch of horrible PII
machines, the fans fail every 3-4 weeks, presumably because of the
housing design. That will keep you busy on its own.
OTOH, my P100s don't have fans or even heatsinks!
Peter
------------------------------
From: "Bjoern A. Zeeb" <[EMAIL PROTECTED]>
Crossposted-To:
comp.os.linux.development.apps,comp.os.linux.development.system,comp.os.linux.setup,comp.os.linux.networking,comp.os.linux.x
Subject: Re: Linux solutions for VoIP and text editors
Date: 3 Feb 2001 16:25:53 GMT
In comp.os.linux.networking V.G.Guhan <[EMAIL PROTECTED]> wrote:
> So far I have not yet found any packages for VoIP clients for Linux.
Have a start at
http://www.openh323.org/
or at
http://www.linuxtelephony.org/
it's really not hard to find these:
http://www.google.com/search?q=linux+voip
There is also an howto you may want to read:
http://www.linuxdoc.org/HOWTO/VoIP-HOWTO.html
Another page you might find in no time is
http://www.voxilla.org/
Hope that's enough for you ;-)
ahm and please stop cross posting.
--
Bjoern A. Zeeb bzeeb at Zabbadoz dot NeT
56 69 73 69 74 http://www.zabbadoz.net/
------------------------------
From: tam <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup
Subject: USB
Date: Sun, 04 Feb 2001 00:57:54 +0800
Hi, I am having trouble with USB. My USB Sandisk compact flash reader
works perfectly on my laptop running Kernel 2.4, but it doesn't work on
my desktop computer. It has an i810 motherboard; its OS is Debian 2.2;
the kernel version is 2.4.1. I am putting the parts of my dmesg
containing usb below. The first part seems to be normal but there are a
lot of complaints in the second part.
Thank you for your help.
L. Tam
usb.c: registered new driver usbdevfs
usb.c: registered new driver hub
PCI: Found IRQ 9 for device 00:1f.2
PCI: The same IRQ used for device 01:0a.0
PCI: Setting latency timer of device 00:1f.2 to 64
uhci.c: USB UHCI at I/O 0xd000, IRQ 9
uhci.c: detected 2 ports
usb.c: new USB bus registered, assigned bus number 1
usb.c: kmalloc IF c122da80, numif 1
usb.c: new device strings: Mfr=0, Product=2, SerialNumber=1
usb.c: USB device number 1 default language ID 0x0
Product: USB UHCI-alt Root Hub
SerialNumber: d000
hub.c: USB hub found
hub.c: 2 ports detected
hub.c: standalone hub
hub.c: ganged power switching
hub.c: global over-current protection
hub.c: power on to power good time: 2ms
hub.c: hub controller current requirement: 0mA
hub.c: port removable status: RR
hub.c: local power source is good
hub.c: no over-current condition exists
hub.c: enabling power on all ports
usb.c: hub driver claimed interface c122da80
......
uhci.c: root-hub INT complete: port1: 1a3 port2: 80 data: 2
hub.c: port 1 connection change
hub.c: port 1, portstatus 301, change 1, 1.5 Mb/s
hub.c: port 1, portstatus 303, change 0, 1.5 Mb/s
hub.c: USB new device connect on bus1/1, assigned device number 2
uhci.c: uhci_result_control() failed with status 440000
URB [c126fb20] urbp [c7e161e0]
QH [c7e141e0]
td 0: [c7e15120]
07e15164 e0 LS Stalled CRC/Timeo Length=7 MaxLen=7 DT0 EndPt=0
Dev=0, PID=2d(SETUP) (buf=0122dbc0)
td 1: [c7e15160]
00000001 e3 LS IOC Active Length=0 MaxLen=7ff DT1 EndPt=0 Dev=0,
PID=69(IN) (buf=00000000)
usb.c: USB device not accepting new address=2 (error=-110)
hub.c: port 1, portstatus 303, change 0, 1.5 Mb/s
hub.c: USB new device connect on bus1/1, assigned device number 3
uhci.c: uhci_result_control() failed with status 440000
URB [c126fb20] urbp [c7e161e0]
QH [c7e141e0]
td 0: [c7e15160]
07e15124 e0 LS Stalled CRC/Timeo Length=7 MaxLen=7 DT0 EndPt=0
Dev=0, PID=2d(SETUP) (buf=0122dbc0)
td 1: [c7e15120]
00000001 e3 LS IOC Active Length=0 MaxLen=7ff DT1 EndPt=0 Dev=0,
PID=69(IN) (buf=00000000)
usb.c: USB device not accepting new address=3 (error=-110)
------------------------------
From: Mark Bratcher <[EMAIL PROTECTED]>
Subject: Re: NEC SuperScript @ 600x600 dpi?
Date: Sat, 03 Feb 2001 16:57:08 GMT
[EMAIL PROTECTED] wrote:
>
> Has anyone found a way to print 600x600 dpi through ghostscript to a
> NEC SuperScript 870? I'm currently using the LaserJet Plus filter which
> only supports 300x300 dpi.
>
> Sent via Deja.com
> http://www.deja.com/
You could try HP Laserjet 4/5/6 which emits PCL5 (the language in which
HP introduced 600 dpi). However, it's possible none of the HP laserjet
drivers will do what you want because the NEC SuperScript 870 supports
PCL4.5 which was sort of invented by the HP printer clones (NEC,
Panasonic, et al). PCL4.5 is HP's PCL4 (which supports 300dpi) modified
to do 600dpi and perhaps some other things.
I browsed the ghostscript printer list for a printer that might support
PCL4.5, but didn't see any (maybe one on there does, but I am unfamiliar
with it).
The www.linuxprinting.org site indicates that you have to settle for 300
dpi using the laserjet IIp driver.
--
Mark Bratcher
Remove _UNSPAM to email me
=========================================================
Escape from Microsoft's proprietary tentacles: use Linux!
------------------------------
Date: Sat, 03 Feb 2001 15:29:53 +0100
From: Juergen Leeb <[EMAIL PROTECTED]>
Subject: HP 840C
I bought a HP 840C Printer, recently.
Is there the possiblity to get it work under Linux. Maybe with
ghostscript and apsfilters. But which filter should I use?
Does somebody has experience in the HP840C?
Thank for helping
best regards
juergen leeb
------------------------------
Reply-To: "Colin Anderson" <[EMAIL PROTECTED]>
From: "Colin Anderson" <[EMAIL PROTECTED]>
Subject: Video Capture using Rockwell based card (Pace webcam card)
Date: Sat, 3 Feb 2001 17:39:43 -0000
Hi,
Has anyone managed to get this PCI card working with Linux. I have tried it
with bttv (it's a brooktree based card AFAICT) but with no luck so far. I'm
going to upgrade to Mandrake 7.2 to see if that helps.
The card itself has three inputs at the back, one for S-Video, one for
Composite Video and one for the Webcam that came with the card. I used to
have it running under Win98 but I want to use it on my Linux box for a small
time-lapse project. I could just install Win98 on the box as I hardly use
it, but I'd rather not (I'm sure you understand :) ).
Any help or pointers gratefully received.
Colin.
------------------------------
From: [EMAIL PROTECTED] (Mark Bratcher)
Subject: Re: HP 840C
Date: Sat, 03 Feb 2001 17:49:54 GMT
On Sat, 03 Feb 2001 15:29:53 +0100, Juergen Leeb <[EMAIL PROTECTED]> wrote:
>I bought a HP 840C Printer, recently.
>
>Is there the possiblity to get it work under Linux. Maybe with
>ghostscript and apsfilters. But which filter should I use?
>Does somebody has experience in the HP840C?
>
Check out www.linuxprinting.org and search for the 840C.
--
Mark Bratcher
To reply, remove _UNSPAM from my email address
=========================================================
Escape from Microsoft's proprietary tentacles: use Linux!
------------------------------
Date: Sat, 03 Feb 2001 16:04:53 -0300
From: Pierre <[EMAIL PROTECTED]>
Subject: IBM ServeRaid with TurboLinux 6.0
I am trying to install Turbolinux 6.0 Server in a Netfinity 5100 with
ServeRaid but iam having a lot of problems:
1 - TurboLinux Server 6.0.4 dont find the ServeRaid 4.3.
Reading the IBM RedBook and after upgrade de ipc.c and .h and
recompile the kernel 2.2.14-5 in another machine and create a new extra
hardware instalation disc the
instalation was correct but when the system will boot dont find the
ServeRaid SCSI adapter.
What can i do now?
In the IBM redbook they wrote:
4.1.3 Compiling the ServeRAID driver after TurboLinux is
installed
Before we build a new driver, you should make a boot disk so the
system can
still be booted if there is a problem. To do this, label a disk
“Emergency boot
disk - TurboLinux 6” and type the following command:
mkbootdisk --device /dev/fd0 2.2.14-8
With this diskette still in the drive, reboot the server and
confirm that you can
log in to the server as root. If you can, then this is a good
boot disk for this
server. You should new reboot the server without the diskette in
and proceed.
It is also recommended that you make a backup copy of the
kernel, initial
RAM disk, and current ServeRAID driver with the following
commands:
cp /boot/vmlinuz /boot/vmlinux-safe
cp /boot/initrd-safe /boot/initrd-safe
How can i do that if the system dont boot?
Regards
Pierre Litsas
Sao Paulo - Brazil.
------------------------------
From: Darren Davison <[EMAIL PROTECTED]>
Subject: Re: cannot dial modem through ttySx
Date: Sat, 03 Feb 2001 18:35:23 +0000
thanks for the response.
That's the point though, not having used minicom before, I don't see how
to send commands directly to the modem. None of the menu options
suggest a method, and typing commands directly into the main part of
minicom's screen produced no result either. Of course this could very
well prove that my serial port is simply not passing the info to the
modem - hence no result, but when I use minicom's menu commands to
reset/hangup/initialize, I see the modem lights flicker or light up
suggesting that *something* is getting through.
Regards,
DD
John Todd wrote:
>
> Yes, of course...minicom. If you send "AT" do
> you get "OK" back? If not, you are not "talking" to
> your modem yet.
>
------------------------------
From: "Harald Gillwald" <[EMAIL PROTECTED]>
Subject: no login
Date: Sat, 3 Feb 2001 19:49:36 +0100
My suse 6.2 work correct. Samba runs good and apache too. But I can't login
at the machine. The monitor and the led "num" on keyboard are blinking it
goes at one second steps on out on out on out and so on. With telnet is no
problem to login, but not at the machine.
Please, please, please help.
Who knows the problem or who can fix it?
Harald
------------------------------
From: Ken Moffat <[EMAIL PROTECTED]>
Subject: Re: HP 840C
Date: Sat, 03 Feb 2001 11:04:29 -0800
Juergen Leeb wrote:
>
> I bought a HP 840C Printer, recently.
>
> Is there the possiblity to get it work under Linux. Maybe with
> ghostscript and apsfilters. But which filter should I use?
> Does somebody has experience in the HP840C?
>
> Thank for helping
>
> best regards
> juergen leeb
I have an 840c under Caldera 2.4, and it works fine. I used the
HP1200c driver. I'd just pick one, see if it works, then try another
till you find the one that works.
In Wordperfect I use the PostScript2 setting. PS1 also worked fine. The
built in drivers for HP didn't work for me.
--
Ken Moffat
[EMAIL PROTECTED]
------------------------------
From: "Richard Wallace" <[EMAIL PROTECTED]>
Subject: CT5880 Sound chipset
Date: Sat, 03 Feb 2001 19:07:49 GMT
I have a Duron 600 system with a Gigabyte GA-7ZX motherboard. It has a
CT5880 chipset on board for sound support. Anyone have any luck getting
sound to work on this configuration? (yes, I have enabled the sound card
in bios, I tried the drivers from opensource.creative.com)
Any help is appreciated.
Rich
------------------------------
From: "Stef Club internet" <[EMAIL PROTECTED]>
Subject: fm 801
Date: Sat, 3 Feb 2001 20:05:25 +0100
Hello i'm beginner under linux.
My system is pentium III 550 mhz 128 mo Ram.
I'm trying to install alsa-driver (all versions) for my fortemedia 801 under
redhat 7.0.
But i get compilation error about kernel version ???
Please help me.
best regards
------------------------------
From: [EMAIL PROTECTED] (Samir Moulay)
Subject: Linux on KT7-RAID
Date: 3 Feb 2001 20:38:39 +0100
Hi,
I am trying to install RedHat 7.0 on my PC but I encountered some
troubles (I also tried RedHat 6.2, Corel and Mondrake an all refuse to
install on the machine).
When I choose any kind of install (custom, server ….) Linux pop a
message saying that he can’t find the media to install on.
So I am stuck at this point.
Does Linux support RAID (I don’t need it cause I have only one HDD –
it’s an AATA100 plugged in ide 3 on the KT7-RAID board-).
Is there anything that I can do ?
Do I need to install some drivers ?
Thanks.
--
Posted from field.videotron.net [205.151.222.108]
via Mailgate.ORG Server - http://www.Mailgate.ORG
------------------------------
From: <[EMAIL PROTECTED]>
Subject: Non-novice PS/2 mouse/gpm prob maybe more RedHat 6.2
Date: Sat, 3 Feb 2001 14:51:09 -0500
Reply-To: <[EMAIL PROTECTED]>
I have a dual boot system with RedHat6.2 on hdb and Windows95 on hda.
A recovery of win95 required reload from CD-ROM and somehow Linux was
damaged when I next booted Linux.
I have a Microsoft Intellimouse which used /etc/rc.d/init.d/gpm. The gpm
command resolved to daemon gpm -t imps2
In text mode when gpm is started the entire system locks up. I get a text
mouse
cursor but both keyboard and mouse lock up. In addition if any of the
RedHat tools such as "setup", "mouseconfig" are started the keyboard
locks as well ( gpm not running). One can exit setup
using [Ctrl][Alt][F6] or [Ctrl][Alt][Del] but normal keystrokes are useless.
XF86Setup comes up to the graphic screen and hangs. When started
in run level 5 with gpm enabled, the graphic log in screen appears and
system hangs.
I have read Busmouse-HOWTO and gpm documentation. IRQ12 is not
being used. I have tried disabling all servers in the /etc/rc.d/rc3.d
directory
when booting to run level 3 and starting gpm using imps2 and ps/2.
/dev/mouse is linked to /dev/psaux ; both appear as documentation suggests.
I tried a format and complete reload from CD-ROM. The above problem
persists.
The latest gpm package from RedHat was reloaded and has no affect.
I tried removing the Win95 disk and making the Linux disk the primary
(setting the jumper properly). No good.
My only guess is a hardware problem, but the mouse performs without error
in Win95 (though I only use minimal functions).
I have used Linux for several years and this is my first post. I am stumped.
Any thoughts would be greatly appreciated.
------------------------------
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