Linux-Hardware Digest #508, Volume #9 Fri, 26 Feb 99 16:13:49 EST
Contents:
Compaq keyboard problem (Edwin Lim)
Re: Setserial High Speed Help (Mickey Stein)
Re: Crystal 3daudio card and linux? ("John Zonneveld")
Cannot remount root partition readonly. ("Austin Skyles")
mouse problem (Jatin Kamat)
Re: RAID solutions for Linux... ("Tom Emerson")
Re: Parallel port zip (Sean Russell)
Fast Trak IDE RAID controller (Mike Swieton)
Re: cdrom problem ("Martin")
Re: Parallel port zip (Andreas Spengler)
S3 Trio 3D Problem ("����ȣ")
Re: Pentium III Boycott and survey info (Seth Van Oort)
Re: OPTi 82C925 setup (sound) (Bill Jones)
Re: USB Microsoft Natural Keyboard (Steve Anderson)
Re: Overclocking (was: Re: K6-2 and Linux, Are there any Bug?)
([EMAIL PROTECTED])
Re: A more complete and well-formed question. (Bryan J. Maloney)
Re: Can Linux use 36-bit Xeon addressing? (Seth Van Oort)
----------------------------------------------------------------------------
From: [EMAIL PROTECTED] (Edwin Lim)
Subject: Compaq keyboard problem
Date: Thu, 25 Feb 1999 18:27:24 GMT
It seems like some people have been having problems with certain models
of Compaq machines. The symptom is that the keyboard hangs after
booting. Other symptoms might include keyboard hanging when the bus
mouse or keyboard plug is pulled out or inserted.
Where I work, there are quite a few of the Compaqs Deskpro EN, running
mostly stock Red Hat 5.2. Some of them exhibits those behavior. I
have personally seen an older model of Compaq showing the same problem,
but forgot which model it was.
When the problem occurs, the kernel would not detect any interrupt from
the keyboard anymore. And there doesn't appear to be a way of fixing
it easily short of a reboot.
This problem appears to be as least hardware dependent and I have seen
boxes that are very resistant to this problem, as well as boxes that
are really chronic and will freeze the keyboard as the slightest
provocation.
I have poked around a little and discovered that at least some of that
problem can be overcome for me. The trick is to force the keyboard to
initialize, whether during boot up, or by inserting a module to
initialize it.
According to the keyboard.c in 2.0.36 (probably change somewhat in
newer kernels), the PC BIOS should have initialized the keyboard so the
kernel doesn't have to do it. But, at least for me, if I force the
keyboard to reinitialize, the booting keyboard freeze seems to go
away. How to do it?
Edit /usr/src/linux/drivers/char/keyboard.c if you are using 2.0.36.
Line 46--49:
#ifndef __i386__
#define INIT_KBD
static int initialize_kbd(void);
#endif
Delete the first and last line to make it:
#define INIT_KBD
static int initialize_kbd(void);
Recompile and test it out.
I don't know if this will solve the problem of keyboard hanging _after_
it boots up OK since I can't get mine to freeze if it did not freeze
during boot up (with or without the reinitializing hack). Maybe I will
get a really chronic box someday and can test the "fix" more
thoroughly. I don't know what is causing this exactly--maybe I will
find out if I have the time and skill. Also, if you isolate the part
of code that perform the initialization in keyboard.c (towards the very
end, almost everything else can be junked), and compile it as a module,
it can resurrect a dead keyboard even after you boot up. If there is
enough demand, I'll clean up my module and post it.
Also, please note that you are trying this at your own risk! I will
hereby declare that I am incompetent of writing any reasonable code as
well as ignorant with respect to the linux (or any other) kernel.
So there! 8^)
That being said, I would be interested in your feed back, good or bad,
but I can't promise any immediate reply.
Cheers and enjoy!
Edwin Lim <[EMAIL PROTECTED]>
------------------------------
From: Mickey Stein <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.networking,comp.os.linux.setup,comp.protocols.kermit.misc
Subject: Re: Setserial High Speed Help
Date: Thu, 25 Feb 1999 11:51:14 -0800
Great --
Glad you worked it out,,,
Mick
C Lance Moxley wrote:
> In comp.os.linux.hardware Mickey Stein <[EMAIL PROTECTED]> wrote:
>
> >> This is the part that I need help with. My serial card has a 16650
> >> UART. The manufacturer says that it will go 460800bps. So you're
> >> saying that if I set the baud_base to 460800 and the divisor to 2
> >> I'll be able to get 230400bps if I use spd_cust and set my ppp to
> >> use 38400?
>
> > Well it sounds like you're on the right track for setserial. I'd give that a try.
>
> Did it and it works perfectly. Thanks a lot for the help.
>
> >> I've poured over the setserial manual but didn't figure out that
> >> 38400 would really mean something else.
>
> > Sorry: I thought it said that right on the man page for setserial.
>
> It does, but I didn't comprehend it until I read your message. I guess
> I just needed it said a different way to fully understand it.
>
> > Maybe you need to slow down and get it working at 115K first. All of these isdn
>modems
> > will talk to an async term emulator (like minicom or seyon or even the interactive
>mode
> > of kermit) at 115, but I've yet to see one that'll talk to any modem at 230K.
>There's a
>
> Actually I have a new 3Com/USR Courier V.90 external modem that also
> will talk to a DTE at 230400bps. That's what I used to make sure that
> I was actually talking 230400 through my serial port. If you do an &w
> followed by an i7 you will see the DTE speed that the modem is talking
> to the serial port at.
>
> It seems to do AT commands just fine at 230400 as does the Eicon Diva T/A.
>
> > Anyway.. give that setserial the way you mentioned it a try and good luck with this
> > thing. It can be done in linux and you should be able to get both b channels
>working
> > too.
>
> Again, thanks for clearing up what the setserial man page says.
> Everything is working like I expected it to now.
>
> --
> C Lance Moxley
> http://www.uiuc.edu/ph/www/clm
------------------------------
From: "John Zonneveld" <[EMAIL PROTECTED]>
Subject: Re: Crystal 3daudio card and linux?
Date: Thu, 25 Feb 1999 21:39:16 +0100
nine99 heeft geschreven in bericht <7b44vn$brq$[EMAIL PROTECTED]>...
>I have an Emachine with a PnP crystal audio 3d card.
>
>Was wondering if it is compatible with linux and what is needed to set it
>up? Does the latest kernel 2.2.2.1 support it ?
>
>
>Thanks in advance
>
>`
I have an similar problem, when installing RedHat 5.2 the sound card was
detected. Also when Linux boots it is in the start sequence.
But when I run sndconfig again, because I don't hear any sounds, I receive
an error that the /dev/audio could not be opened..
John
>------------------ Posted via SearchLinux ------------------
> http://www.searchlinux.com
------------------------------
From: "Austin Skyles" <[EMAIL PROTECTED]>
Subject: Cannot remount root partition readonly.
Date: Thu, 25 Feb 1999 13:53:35 -0700
I recently upgraded to the new 2.2.2 kernel, and since then, I have had
occasional problems with my system being unable to unmount the root
partition on shutdown. It claims that the partition is busy and cannot be
unmounted, then I am forced to wait for fsck to run on startup. This happens
about 60% of the time. I have searched and searched for an answer to this
problem and finally decided to give up and ask for help.
Austin Skyles
------------------------------
From: Jatin Kamat <[EMAIL PROTECTED]>
Subject: mouse problem
Date: Thu, 25 Feb 1999 16:30:20 -0500
Hi
I have installed redhat5.2 on my home pc. I have a mitsumi scroll mouse
PS/2. In my mouseconfig setup, this mouse is not listed. So, I have
selected "generic 3 button mouse" and checked "emulate 3 buttons". It
works, but has one problem. I cannot use my mouse to paste text. I have
tried all the feasible options for pasting -> clicking the scroll,
clicking the right button and clicking the left & right simultaneously.
Just doesn't work.....
(As crazy as it may sound, I have also tried selecting all the other
mouse options under mouseconfig, just in case....)
For now, I'm using shift+insert to paste text. But its a pain.
another problem:
I cannot use shift + insert to paste text from any of the xterm windows
to netscape window (for eg: email composer). This is a major pain.
any ideas?
Thanks
Jatin
------------------------------
From: "Tom Emerson" <[EMAIL PROTECTED]>
Subject: Re: RAID solutions for Linux...
Date: 25 Feb 1999 22:22:24 GMT
Bill Dossett <[EMAIL PROTECTED]> wrote in article
<[EMAIL PROTECTED]>...
> Hi,
>
> Can anyone recommend any hardware RAID solutoins
> for Linux... DPT, Adaptec? Mylex... do any of these
> have Linux drivers? Any pointers/urls would be much
> appreciated. Also, is is there any any type of
> clustering available with Linux, Red Hat in particular.
Another place to look for the answer to RAID is rec.video.desktop -- those
people have a definate "need" for high-speed/capacity drives :) One that
ought to work is made by a company called Medea -- this is a stand-alone
raid drive, so it "looks like" one device to your system, but in reality is
a 2 or 4-drive box, so you get 20-30mb/sec SUSTAINED throughput...
for clustering, you might want to look into the Beowulf project (I believe
the url is www.beowulf.org, but I'm not 100% sure)
------------------------------
Date: Thu, 25 Feb 1999 11:38:53 -0800
From: Sean Russell <[EMAIL PROTECTED]>
Subject: Re: Parallel port zip
This is a multi-part message in MIME format.
==============DC77D17FEC150BC1A4F8A92A
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A320 Systems wrote:
> Can anyone tell me if the Printer port Zip drive has support in Linux and if
> possible where to get the driver???Stewart..
Go to the following link, which will give you information about what you need
to get PP support on Linux (PPA is included with the 2.0.36 kernel). There is
a link on the page to the parallel port Zip how-to.
http://www.torque.net/linux-pp.html
--
|.. --------------------- Sean Russell ----------------------
<|> [EMAIL PROTECTED] ::: http://javalab.uoregon.edu/ser
/|\ ------- [ Software Engineer ] --------
/| [ n-Link ]
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adr:;;P.O. Box 6044;Bend;OR;97708-6044;USA
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------------------------------
From: Mike Swieton <[EMAIL PROTECTED]>
Subject: Fast Trak IDE RAID controller
Date: Thu, 25 Feb 1999 16:24:36 -0600
Reply-To: [EMAIL PROTECTED]
Does anyone know how to get this to work under linux? Plz?
------------------------------
From: "Martin" <[EMAIL PROTECTED]>
Subject: Re: cdrom problem
Date: Thu, 25 Feb 1999 23:09:19 -0000
Hi,
When you installed the system, /dev/cdrom was created which is a
symbolic link to the real device. To correct the problem, you will need to
know which device has your cdrom drive connected to it :-
/dev/hda - master on primary IDE interface
/dev/hdb - slave on primary IDE interface
/dev/hdc - master on secondary IDE interface
/dev/hdd - slave on secondary IDE interface
you may be able to ascertian the correct device from the messahes produced
by the kernel at boot time.
Alternatively, try the following command with each device in turn :-
mount -t iso9660 <device> /mnt
when you find the correct device, indicated by a successful mount, do the
following command :-
ln -sf <device> /dev/cdrom
Martin
Peter Baars wrote in message <[EMAIL PROTECTED]>...
>Hi there, I am still kind of new in Linuxland. I got this problem
>setting up a server. I installed RedHat Linux of a cdrom, everything
>went fine, just fine. Now it is up and running and I can no longer
>access the cdrom. when trying to mount the cdrom I get the message:
>
>mount: the kernel does not recognize /dev/cdrom as a block device
>(maybe 'insmod driver'?)
>
>so I typed insmod cdrom and got no reply and adter mounting the cdrom
>again I get the same message. Anyone any ideas?
>
>it is a sinmple 24 speed atapi cdrom and is recognized at startup by
>Linux.
>
>
>Peter Baars
>The Netherlands
>
------------------------------
From: [EMAIL PROTECTED] (Andreas Spengler)
Subject: Re: Parallel port zip
Date: 25 Feb 1999 09:26:00 +0100
Hi Stewart,
it is in the kernel...
SCSI support...SCSI drivers....ppa or imm is the name !!!
HTH,
Andreas Spengler
A320 Systems ([EMAIL PROTECTED]) wrote:
: Can anyone tell me if the Printer port Zip drive has support in Linux and if
: possible where to get the driver???Stewart..
------------------------------
From: "����ȣ" <[EMAIL PROTECTED]>
Subject: S3 Trio 3D Problem
Date: Sat, 27 Feb 1999 00:42:41 +0900
I heard that all S3 video card is supported in X11.
But S3 Trio 3D Don't supported.
Is there any other way to use S3 Trio 3D?
Do I Must Use VGA16?
------------------------------
From: Seth Van Oort <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.misc,comp.os.linux.advocacy
Subject: Re: Pentium III Boycott and survey info
Date: Fri, 26 Feb 1999 20:21:09 +0000
An engineer from the company c't in Germany has found ways to manipulate
it via software.
See the news at x86.org.
Seth
John Meissen wrote:
>
> In article <[EMAIL PROTECTED]>,
> Boycott Swintel <[EMAIL PROTECTED]> wrote:
> > Pentium III chip with the individual serial number that can
> >track your web surfing and buying habits can now have the ID number
> >turned on and off by software.
>
> This is untrue. The fact is, the feature can be disabled with software,
> but it can ONLY be turned back on by a full hardware reset.
>
> Of potential concern is that after a hard reset the feature =is=
> reenabled, but if you consider the logic of not being able to
> enable via software, this is the only way to provide for re-enabling
> the feature.
>
> Given that the feature exists, and the way it works, obviously
> the best solution is for BIOS manufacturers to provide for
> disabling at power-on. Otherwise it seems to me a trivial matter
> to provide capability under Linux or any other OS to disable it
> at boot time.
>
> A boycot based on this is ridiculous. Whether you use the chip
> or not should depend on the capabilities of the CPU and if you
> feel they meet your needs.
>
> john-
------------------------------
From: Bill Jones <[EMAIL PROTECTED]>
Subject: Re: OPTi 82C925 setup (sound)
Date: 26 Feb 1999 19:25:17 GMT
If You find out any info on your sound card please
let me know. I have the same card the OPTi82c925
and I can't get it to work under RedHat 5.2
I tried the sound blaster pro setting
220 irq5 and dma1 0 dma2 1
thanks
Bill
William Robison wrote:
> I seem to remember seeing a post
> recently pointing to someones
> web page describing configuration
> and setup for '925 based sound cards.
> Anyone remember this (and the URL)?
>
> regards
> -Willy
================== Posted via SearchLinux ==================
http://www.searchlinux.com
------------------------------
From: Steve Anderson <[EMAIL PROTECTED]>
Subject: Re: USB Microsoft Natural Keyboard
Date: 26 Feb 1999 19:25:05 GMT
Linux supports USB?
================== Posted via SearchLinux ==================
http://www.searchlinux.com
------------------------------
From: [EMAIL PROTECTED]
Crossposted-To:
alt.os.linux.slackware,comp.os.linux.development.system,comp.os.linux.misc,comp.os.linux.setup
Subject: Re: Overclocking (was: Re: K6-2 and Linux, Are there any Bug?)
Date: Fri, 26 Feb 1999 18:44:23 GMT
On Fri, 26 Feb 1999 13:36:11 -0500, GBP <[EMAIL PROTECTED]> wrote:
>
>Yeah point well taken. But is it true that overclocking can result in
>system instability? When netscape crashes how am i going to know it was
>a bug and not my CPU doing and instruction wrong or something? When
>people say instability what exactly do they mean? do these machines
>freeze?
>
>gbp
system freeze or kernel panic. my experience is page faults...
------------------------------
From: [EMAIL PROTECTED] (Bryan J. Maloney)
Crossposted-To: comp.os.linux.setup,comp.os.linux.advocacy
Subject: Re: A more complete and well-formed question.
Date: Fri, 26 Feb 1999 15:36:05 -0500
In article <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
(jedi) wrote:
> So? Do you find Windows horribly inefficient or
> horribly unstable or somesuch?
I read all this glowing gush in various magazines and on CNET about how
wonderful Linux is: It's big, it's small, it's stable, it's fast, it's a
dessert topping AND a floor wax!
I figure anything so utterly wonderful at least bears looking into.
Furthermore, I am not too happy with the way that Microsoft has been
reissuing new OS stuff every couple of years with a hefty price-tag to
boot and the propensity for abandoning their older releases and orphaning
older machines. I wanted to explore a different avenue just in case.
--
To women contemplating marriage: The question you should ask is not
"How much do I love him?" The real question is "How much can I
tolerate him?"
http://www.people.cornell.edu/pages/bjm10/
------------------------------
From: Seth Van Oort <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux,comp.os.linux.misc
Subject: Re: Can Linux use 36-bit Xeon addressing?
Date: Fri, 26 Feb 1999 20:37:04 +0000
Linux has helped people break out from being under the control of
Microsoft by providing options in software. I hope it can help us escape
the control of Intel as well. People are reluctant to get other
processors even when they are obviously better, because they don't bear
the Intel name. The markups on their high end processors compared to the
performance gain is so incredibly ridiculous. If that trend would end,
life would be sunnier in the computing world.
Seth
Robert Krawitz wrote:
>
> "David A. Frantz" <[EMAIL PROTECTED]> writes:
>
> > Robert Krawitz wrote in message ...
>
> > >I think this is a tad unfair. I'm disappointed that Linus doesn't
> > >want to enable large memory addressing on the x86.
> >
> > As with any general purpose operateing system there are trade offs, one
> > outstanding feature of Linux is the freedom to transform it into something
> > that suits your purposes. The reallity is that there is nothing to be
> > gained by trying to use a special capability of the XEON just to fillfull
> > the special needs of a few users. This is especially the case when the
> > Chip and Chip SETs are not suited for the application. I firmly believe
> > that if you really need 64 bit addressing to main memory then you need to
> > look at a 64 bit system.
>
> Well, Xeon boxes seem to be awfully popular these days. And again:
> there's a lot of software (even for Linux) that only runs on x86.
> Folks who want to use Oracle don't have the option of getting an Alpha.
>
> > >Job mixes that are more memory/IO than computation intensive (which is
> > >the case for a lot of commercial data processing) would benefit
> > >greatly from the availability of large memory on commodity hardware.
> >
> > Why would anyone do commercial data processing in large pools of main
> > memory? Seems awfully risky. Actually large memory systems and heavy
> > computation base apps go hand in hand.
>
> Example: something that's trying to join a stream of transactions to
> accounts. Database (and non-database) joins can always use all the
> memory they can get their grubby little paws on.
>
> Actually, on further thought Linus's last message on the topic
> suggested using the extra RAM as a ramdisk. If the machine then
> swapped to the ramdisk, things would work reasonably well.
>
> [Disclaimer: that I'm not a disinterested observer: I work for Torrent
> Systems: http://www.torrent.com/. However, this posting is completely
> my own opinion, and does not reflect any official company policy.]
>
> --
> Robert Krawitz <[EMAIL PROTECTED]> http://www.tiac.net/users/rlk/
>
> Tall Clubs International -- http://www.tall.org/ or 1-888-IM-TALL-2
> Member of the League for Programming Freedom -- mail [EMAIL PROTECTED]
>
> "Linux doesn't dictate how I work, I dictate how Linux works."
> --Eric Crampton
------------------------------
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