Linux-Hardware Digest #412, Volume #12 Mon, 6 Mar 00 11:13:09 EST
Contents:
Re: how to active my sound card? (Frank Swasey)
Re: Hardware Switch To Completely Disconnect From Ethernet (Geno Valicenti)
Re: SCSI? IDE? Opinions please (J Bland)
Re: Advice on PartitionMagic on all-Linux system? (Rod Smith)
Re: Advice on PartitionMagic on all-Linux system? (Rod Smith)
Re: adding a scsi controller ("Ron S")
Re: Linux hardware problem detector (Matthew)
Re: best graphics card? (Dirk Mueller)
Re: best graphics card? (Dan Law)
Re: CHALLENGE: Port Linux to a Mountain Dew can! (Lew Pitcher)
Re: SoundBlaster Awe64 PCI? ("[EMAIL PROTECTED]")
Re: Sound on ThinkPad 600E with Red Hat 6.1 (Matt Hawkins)
Re: SCSI devices on one bus (Rafal Wysocki)
Ultra160 SCSI cards (Rafal Wysocki)
AGP + Linux = ? (anthony)
----------------------------------------------------------------------------
From: [EMAIL PROTECTED] (Frank Swasey)
Subject: Re: how to active my sound card?
Date: 6 Mar 2000 13:23:21 GMT
In article <89nalg$n1i$[EMAIL PROTECTED]>,
"Lu Bingwen" <[EMAIL PROTECTED]> writes:
> I am a newbie to linux. I am using Creative PCI64 sound card in win98. Now I
> installed RH6.1 to my computer (coexist with win98 on the same machine).
> However, there is no sound. Anyone knows how to active my sound card?
Unless you have recompiled your kernel after the RH6.1 install, you will
most likely be able to run "sndconfig" as root and it will set it all up
for you.
Good Luck
--
Frank Swasey
Systems Programmer
University of Vermont
------------------------------
From: Geno Valicenti <[EMAIL PROTECTED]>
Subject: Re: Hardware Switch To Completely Disconnect From Ethernet
Date: Mon, 06 Mar 2000 13:37:04 GMT
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mike wrote:
> Hi,
> I would like to know if it is possible to put simple hardware
> switch in an ethernet cable, for example 10 Base T twisted pair,
> so as to completely disconnect a computer from the local network.
> If this could work reliably, it would be a secure way to prevent
> unauthorized hacking of a system.
>
> Mike
>
> P.S. I am concerned that the switch could cause some type
> of imbalance in the signal maybe creating internal reflections
> or noise or general impedance mismatch in the system that
> would interfere with the connection.
Why not remove the cable from the NIC?
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------------------------------
From: [EMAIL PROTECTED] (J Bland)
Subject: Re: SCSI? IDE? Opinions please
Date: 6 Mar 2000 14:27:44 GMT
>Bruce McKenzie <[EMAIL PROTECTED]> wrote:
>> I thought I'd throw out a request for opinions about which of these
>> types of hard drives were thought best by Linux users before I go and
>> put a machine together for myself. Any takers?
>
My personal preference is to have a main hard disc on scsi, doesn't have to
be too big but for those things that are loaded often or are going to have lots
of disc access, as well as things like CDRs etc, then for bulk harddisc
storage, fast CD ROMS, DVD etc, get IDE. You get the best of both worlds.
If you can afford it scsi is nice, but you don't have to base your whole
system round it and for a normal everyday box IDE is quite adequate.
Maybe if more people used scsi the price would drop a bit.
JB
------------------------------
Reply-To: [EMAIL PROTECTED]
From: [EMAIL PROTECTED] (Rod Smith)
Subject: Re: Advice on PartitionMagic on all-Linux system?
Crossposted-To: comp.os.linux.misc
Date: Mon, 06 Mar 2000 14:32:54 GMT
In article <89vaog$j0k$[EMAIL PROTECTED]>,
Alan Burns <[EMAIL PROTECTED]> writes:
> In article <J01w4.508$[EMAIL PROTECTED]>,
> [EMAIL PROTECTED] (Rod Smith) wrote:
>
>> Version 4.0 added the ability to move, resize, copy, and create ext2fs
>> partitions. Version 5.0 hasn't really added anything to that set of
>> operations, AFAIK.
>
> It added conversion from primary to logical and vice versa, I think.
Yes, although that's not an ext2fs-specific feature.
--
Rod Smith, [EMAIL PROTECTED]
http://www.rodsbooks.com
Author of books on Linux networking & WordPerfect for Linux
------------------------------
Reply-To: [EMAIL PROTECTED]
From: [EMAIL PROTECTED] (Rod Smith)
Subject: Re: Advice on PartitionMagic on all-Linux system?
Crossposted-To: comp.os.linux.misc
Date: Mon, 06 Mar 2000 14:38:39 GMT
[Posted and mailed]
In article <[EMAIL PROTECTED]>,
[EMAIL PROTECTED] (Dave Brown) writes:
>
> I have PM 4.0, but haven't really been able to play with it. It claims
> my partition table is corrupted. Yet both MS fdisk and Linux fdisk are
> able to work with it. Any suggestions as to how to make my partition
> table acceptable to PM?
PM is *VERY* finicky about the partitions with which it will work. The
single most likely cause of the problem you're seeing is out-of-order
logical partitions. For instance (from Linux fdisk):
/dev/sda5 667 1011 2771181 83 Linux
/dev/sda6 5 666 5317483+ 83 Linux
Note that /dev/sda5 starts AFTER /dev/sda6. PM chokes on this. You CAN fix
this problem by noting the start and end points of the partitions,
deleting ALL logical partitions, and re-creating the partitions with the
EXACT SAME start and end points, in order. If any Linux partitions are
affected, you'll need to change their entries in /etc/fstab, and you may
need to re-run lilo. BE CAREFUL, THOUGH! Sometimes Linux's fdisk can't
create a new partition of the exact correct size. If so, ABORT THE
OPERATION!!! Also, don't try this with any disk partitioning program
except Linux's fdisk; AFAIK, no other program can make the required
changes. (Well, I suppose you could do it with a low-level disk editor,
but I don't know enough about the data structures to say what to change.)
> Also, I've been curious about how PM can resize an ext2 partition, i.e.,
> shrink it. Since ext2fs does not necessarily stuff files in data blocks
> near the beginning of the partition (as I understand it, it looks for a
> data-block-group(s) which have enough contiguous data blocks to store
> the file without fragmentation). But that could mean that cylinders
> toward the end of the partition are being used, even on a lightly
> filled partition. Does PM relocate used data blocks toward the
> beginning of the partition? I don't know of a Linux utility that does.
Yes, PM relocates data blocks as necessary. It does so on all partition
types that it handles (FAT, HPFS, NTFS, ext2fs).
--
Rod Smith, [EMAIL PROTECTED]
http://www.rodsbooks.com
Author of books on Linux networking & WordPerfect for Linux
------------------------------
From: "Ron S" <[EMAIL PROTECTED]>
Subject: Re: adding a scsi controller
Date: Mon, 6 Mar 2000 09:38:28 -0500
Andreas Hoffmann <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> Ron S wrote:
> >
> > I have a system running RH6.1. It is booting from an IDE drive. I added a
PCI
> > based 53C810 SCSI controller card to the system. When I rebooted, kudzu
> > detected the controller and asked if I want to configure the device. I
> > responded yes. However when the system came up, it did not recognize the
> > controller. I checked and found that an entry had been added to
> > /etc/conf.modules for the controller:
> >
> > alias scsi_hostadapter ncr53c8xx
>
> OK, you set it up a a module.
>
> >
> > However it was not seen at boot. The only hint of an error I saw was in
> > /var/log/messages:
> >
> > kernel: scsi : 0 hosts.
> > kernel: scsi : detected total.
> >
>
> AFAIK only compiled-in scsi controller are recognized at boot up.
>
> > I thought maybe it isn't loaded since there isn't a target drive. I
installed a
> > drive, but the results were the same.
> >
> > If I manually do an insmod ncr53c8xx however, the controller is recognized
and
> > I can use the attached drive.
>
> If you have the kerneld running, it should be loaded automatically, if
> you access any SCSI device.
>
Even with kerneld running, an attempt to mount the drive results in:
mount: the kernel does not recognize /dev/sda as a block device
(maybe 'insmod driver'?)
Here again, if I manually do the insmod for the driver, it does mount. Why
isn't kerneld dynamically loading the module?
BTW, what is the normal mechanism for starting kerneld. I didn't see it
anywhere in the rc configuration or inittab.
> > So the question is, why isn't the module loaded automatically at boot time?
>
> Because it's not needed. (That's the technique of modules.)
>
> > What do I need to change to make
> > it do so?
> >
>
> If you wan't to have it all the time, go ahead and compile it into your
> kernel.
>
> > TIA,
> > Ron S.
>
>
> Andreas
------------------------------
From: Matthew <[EMAIL PROTECTED]>
Subject: Re: Linux hardware problem detector
Date: Mon, 06 Mar 2000 14:27:30 GMT
Well, I don't think I have a cheap motherboard. Tyan puts out very good
products.
Last night, I went into the BIOS and found that the memory speed was at
Turbo so I moved that down to normal and I placed the cache speed at
Fast instead of Fastest. This seemed to do the trick, but I will report
more after I beat on it a bit.
Thank you for your help.
Matthew Harelick
In article <[EMAIL PROTECTED]>,
[EMAIL PROTECTED] wrote:
> On Sun, 05 Mar 2000 23:11:57 GMT, Matthew
<<89upjr$lfe$[EMAIL PROTECTED]>>
> shouted forth into the ether:
> >I have used RH 6.0 on older computers so I know that it works.
> >Are there Linux tools for detecting hardware problems?
> >Tyan S1598C2 motherboard (2 M Cache)
> >64M of RAM
> >13G Hard-drive.
> >Symptoms include crashes and core dumps from both Gnome and KDE. At
one
> >point my machine froze. In the message logs there are Kernel Oops.
> >My first choice of suspects is the memory
>
> You could be right at that. The "memtest86" utility would be a good
thing
> to check out. It can be found below:
> http://reality.sgi.com/cbrady_denver/memtest86
> I had similar problems but it turned out that the RAM wasn't faulty;
it
> was either the El Cheapo motherboard I had at the time or its
integrated
> video. I suppose you could try disabling the cache in the system
BIOS and
> see if the problem goes away, but the performance hit there would be
> absolutely awful. Good luck...
>
> --
> Matt G / Dances With Crows \ In the MS-DOStrix,
> There is no Darkness in Eternity \----\ there is no fork().
> But only Light too dim for us to see \
> ===== Usenet: ceci n'est pas une guerre des flammes =====
>
>
Sent via Deja.com http://www.deja.com/
Before you buy.
------------------------------
From: Dirk Mueller <[EMAIL PROTECTED]>
Crossposted-To: alt.os.linux,comp.os.linux.x,uk.comp.os.linux
Subject: Re: best graphics card?
Date: Mon, 06 Mar 2000 15:43:12 +0100
Reply-To: [EMAIL PROTECTED]
Dan Law wrote:
>
> Can anyone recommend a graphics card supported by Linux (well, XFree86)
> that would have a high quality mpeg decoder that can be used in DVD
> playback on a pc monitor?
Hi Dan,
you probably want to have a look into the Hardware-HOWTO to get
an idea which cards are supported. The features of each card you
can ask at your favorite hardware seller then.
http://www.linuxdoc.org/HOWTO/Hardware-HOWTO.html
Dirk
--
_______________________________________________________________________
Dirk M�ller [EMAIL PROTECTED]
------------------------------
From: Dan Law <[EMAIL PROTECTED]>
Crossposted-To: alt.os.linux,comp.os.linux.x,uk.comp.os.linux
Subject: Re: best graphics card?
Date: Mon, 06 Mar 2000 14:56:45 +0000
Dirk Mueller wrote:
> Dan Law wrote:
> >
> > Can anyone recommend a graphics card supported by Linux (well, XFree86)
> > that would have a high quality mpeg decoder that can be used in DVD
> > playback on a pc monitor?
>
> Hi Dan,
>
> you probably want to have a look into the Hardware-HOWTO to get
> an idea which cards are supported. The features of each card you
> can ask at your favorite hardware seller then.
>
> http://www.linuxdoc.org/HOWTO/Hardware-HOWTO.html
>
> Dirk
>
> --
> _______________________________________________________________________
> Dirk M�ller [EMAIL PROTECTED]
Dear Dirk,
Thanks for your reply! I checked the Hardware-HOWTO but it seems to be
slightly out of date. The XFree86 website lists a few new cards including
ATI and a few others with different chipsets - but I don't know which
chipset is in which graphics card & I don't know which card can be used for
/or has the best quality DVD playback. I'm curious to know what the
LiVID people are using... Perhaps PCI? Perhaps software decoding? But they
haven't set up their website yet. I wonder if anyone who views DVD on their
PC finds a particular card performs better than any other?
-Dan
------------------------------
From: [EMAIL PROTECTED] (Lew Pitcher)
Subject: Re: CHALLENGE: Port Linux to a Mountain Dew can!
Reply-To: [EMAIL PROTECTED]
Date: Mon, 06 Mar 2000 15:12:17 GMT
This could be fun <vbg>
On Sat, 04 Mar 2000 19:04:55 GMT, "Robert W. Cunningham"
<[EMAIL PROTECTED]> wrote:
>advisor wrote:
>
>> A friend of mine and I would like to post a public challenge to test the
>> versatility of linux: we would like to see if someone can port linux to
>> a mountain dew can - any necessary and reasonable modifications to the
>> can (addition of transistors, etc.) are acceptable, as long as the end
>> product can be displayed as something recognizable as a mountain dew can
>> which runs linux. (consider the marketing potential, folks - the
>> ultimate extreme soft drink powered by the ultimate extreme OS?)
>>
>> No prizes to be awarded, just the honor that comes with being the first
>> person to ever port an OS to a soft drink.
>>
>> So, ladies and gentlemen, start your engines! Let the porting begin!
>
>Uh, does the can still have to be full of Mountain Dew?
That _would_ be inconvenient ;-) However, the key seems to be the can,
and not it's original contents. I'd guess that the Mountain Dew can be
decanted to other containers before the porting project begins.
>I'm wondering how to get a computer in through the drinking hole.
OP: any necessary and reasonable modifications to the can are
OP: acceptable, as long as the end product can be displayed as
OP: something recognizable as a mountain dew can which runs linux.
I believe that this gives you license to open the can, so long as you
close it again once the port is complete.
>Does power have to be self-contained? A power cord would be ugly...
How about an inductance powersource, instead. Although there _are_
processors that can run off of battery power (even 9volt).
>Can we build it into one of thouse sound-activated dancing cans instead?
Are those cans built to the same physical dimensions as a real
Mountain Dew can?
>Linux runs on a Palm, and a naked Palm circuit board might just fit inside
>a soda can... Just have a serial connector exposed for connecting a
>console device...
Although that may satisfy the letter of the challange, I believe that
it violates the spirit of the challange. You might win on a
technicality, but you wouldn't get any points for congeniality.
>Get one of those new flexible plastic LCDs to wrap around the outside, and
>you could even have a display. Just have it show the Mountain Dew can art
>as a screen saver.
Great Idea!
How about mounting a small piezoelectric button on the inside bottom
of the can, and using it as a speaker. A _multimedia_ Linux Mountain
Dew can ;-)
>
>-BobC
>
>
Lew Pitcher
System Consultant
Toronto Dominion Financial Group
([EMAIL PROTECTED])
(Opinions expressed are my own, not my employer's.)
------------------------------
From: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.misc
Subject: Re: SoundBlaster Awe64 PCI?
Date: Mon, 06 Mar 2000 15:33:47 +0000
Reply-To: [EMAIL PROTECTED]
Bo B wrote:
>
> Is there a SB Awe64 PCI version on the market? (ES1371 chip??)
> I found a store selling a SB PCI card, with an ES1371 chip
> with no drivers or docs, pretending to be Awe64, but it's nowhere
> written on the card. The only thing I could find was ES1371 chip.
> I know that Awe64 is usually ISA.
>
> But if it is awe64 PCI, does it work with linux kernel 2.2.14?
> Thanks
> Bo
I don't know if it's an AWE64 or not but if it has an E1371 chip just
configure it as such when you rebuild the kernel. It should work without a
problem.
------------------------------
From: Matt Hawkins <[EMAIL PROTECTED]>
Subject: Re: Sound on ThinkPad 600E with Red Hat 6.1
Date: Mon, 06 Mar 2000 15:30:08 GMT
Yes Jim, I have my sound working on a 600e. This is not a short process,
but I will explain it the best i can.
Three files will need to be added/modified to allow the sound to work.
1) Comment everything out in your /etc/conf.modules and add this:
alias sound cs4232
options -k cs4232 io=0x530 irq=5 dma=1 dma2=0 synthirq=5 synthio=0x388
alias midi op13
options -k op13 io=0x388
post-install cs4232 /usr/bin/aumix -v 150,150
alias etho 3c501
Make sure this file is executable.....[it already is...but make sure]
2) Add this to your /etc/rc.d/rc.local file.....
/sbin/rmmod cs4232
/sbin/modprobe cs4232
/usr/bin/aumix -L
ok, done with that one now....again, make sure it is executable...it
already should be.
3) Lastly add this file [and yes, but it in all these places]
/etc/.aumixrc
/etc/aumixrc
/root/.aumixrc
/root/aumixrc
/usr/bin/.aumixrc
/usr/bin/aumixrc
I managed to get sound working, and i'm not sure which one makes it work
and in what location, so put it in all of the above locations and make sure
you have it hidden as well in all locations. [with the dot in front]
aumixrc looks like this:
vol:100:100:P
synth:100:100:P
pcm:100:100:P
speaker:99:99:P
line:45:45:P
mic:0:0:R
cd:65:65:P
mix:0:0:P
igain:75:75:P
and again, make sure the file is executable. This is very important. All
files must be executable files. Do this and the sound will work. If you
like i will email you copies of all three of my files. We have the same
hardware, so they will just plug in and do there thing. Let me know!
Make sure you turn the sound up in the mixer add when you are all done
adding the files and MAKE SURE you reboot the box!
MCH
Jim Campbell wrote:
>
>
> Has anyone had any luck getting sound to work on a ThinkPad 600E? I
can't
> get it to run. sndconfig says:
>
> A PCI sound card was found in your system. The details are:
>
> Model: Cirrus LogicICS 4610/11 [CrystalClear SoundFusion Audio
Accelerator]
>
> It then says that this card is not supported, but www.alsa-project.org
has a
> driver for it.
>
> So I download the drivers and compile them, and am advised by
documentation
> to use the snd-card-cs461x module. However, whenever I load it, I get
the
> message: init_module: Device or resource busy.
>
> I've seen instructions on the Web which suggest steps for a CS4232 card,
but
> that doesn't seem right here, since that's not the sort of card I have.
>
> Anyone have a clue here?
>
> Thanks,
> Jim
> --
> Jim Campbell
> E-mail: [EMAIL PROTECTED]
> Web: http://home.rochester.rr.com/jic
>
>
--
Posted via CNET Help.com
http://www.help.com/
------------------------------
From: Rafal Wysocki <[EMAIL PROTECTED]>
Subject: Re: SCSI devices on one bus
Date: Mon, 6 Mar 2000 16:28:16 +0100
On 22 Feb 2000, Gene Heskett wrote:
> Low Voltage Differential is a totally different logic interface. I
> can't think of a scenario that could get LVD to co-exist with the normal
> open collector TTL signal levels most scsi interfaces use. And, its
> conceivable that the LVD device may be damaged by having half its data
> buffer inputs/outputs tied to ground by being plugged into a non-LVD
> host card. You could make a paperweight/conversation piece very easily.
>
AFAIK, if an LVD device is attached to a non-LVD controller, the
controller is more likely to be damaged than the LVD device.
State-of-the-art controllers (e.g., Adaptec U2 series) are capable of
detecting LVD devices and mixing LVD with non-LVD devices on a single wire
(in which case LVD devices operate in the SE mode). However, I know of an
UW hard disk that was burnt by attaching it to a bus with an LVD disk on
it. So, be careful!
Rafael
------------------------------
From: Rafal Wysocki <[EMAIL PROTECTED]>
Subject: Ultra160 SCSI cards
Date: Mon, 6 Mar 2000 16:45:21 +0100
Hi,
Are the Adaptec Ultra160 SCSI cards (e.g., 29160 or 29160N) supported by
the kernel?
Rafael
------------------------------
From: [EMAIL PROTECTED] (anthony)
Subject: AGP + Linux = ?
Date: 6 Mar 2000 16:04:51 GMT
Hi
Is there any kernel support for the the AGP port such as
filling in the GART / memory management / chipset init etc?
Grepping with agp on kernel 2.2.5.15 doesn't show anything.
Thanks in advance,
Tony.
------------------------------
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