Re: Fast clock and slow modem on laptop
roodwriter_at_core.com
Date: 09/27/05
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Date: Mon, 26 Sep 2005 18:46:15 -0400
Moe Trin wrote:
> In the Usenet newsgroup comp.os.linux.hardware, in article
> <11ivgoi3d4bpl17@corp.supernews.com>, roodwriter@core.com wrote:
>
>>I've got a new Compaq Presario V2321 (V2000 series) laptop with some odd
>>problems.
>>
>>After getting some help earlier from this group, I put SuSE 9.3 on it and
>>it runs good. But now I have two other problems. One is that the clock
>>runs about two to three times as fast as it should. Resetting it doesn't
>>help, it still gallops.
>
> Rod, I'd bet if you googled for the terms "Linux clock fast" and looked at
> the results for the last 30 days - you'd have an answer.
>
>>Back when I had SuSE 9.1 on it I didn't notice the clock running fast. In
>>fact the whole machine was unacceptably sluggish but the clock was right.
>>Is there some way to correct this?
>
> ===================
> From: "Stuart Brockman" <stuartbrockman@gmail.com>
> Newsgroups: alt.comp.linux
> Subject: Re: Clock too fast!
> Date: 10 Sep 2005 16:19:51 -0700
> Organization: http://groups.google.com
> Lines: 7
> Message-ID: <1126394391.648960.147400@f14g2000cwb.googlegroups.com>
> References: <1125588787.637825.13230@f14g2000cwb.googlegroups.com>
> <431782d9$1@news.greennet.net>
> <1125676651.879178.224360@g44g2000cwa.googlegroups.com>
> <slrndhke2k.38i.ibuprofin@compton.phx.az.us>
> <1125871534.766103.9060@g49g2000cwa.googlegroups.com>
> <8d16i1l6hd6ogh2j9q804fvkvqohi6pebj@4ax.com>
> NNTP-Posting-Host: 81.26.117.34
>
> I seem to fave fixed the problem! I googled for the Compaq R4000 timer
> issue, to see if anyone had found a fix for that, and came accross this
> compatibility report:
> http://www.linux-laptop.net/hosted/r4000-gentoo.html
> It mentions passing the kernel the option 'no_timer_check'. This seems
> to have fixed the problem. Thanks everyone!
>
> ===================
>
> Another thread tells me the 'no_timer_check=0' is the correct term. See
> the "Inaccurate System time with new HP pavilion" thread in
> 'alt.os.linux.mandriva'
> if you can. I'm pretty sure I've seen that supernews is carrying that
> group now.
>
>>More importantly, my 56K dialup modem runs about 9.6K. Just a guess, I
>>didn't calculate it.
>
> 9.6k is the default serial port speed. When you try to use a port speed
> that pppd doesn't support (2400, 3600, 4800, 7200, 9600, 19200, 38400,
> 57600, 115200, 230400 and 460800), pppd ignores your setting.
>
>>It also just occurred to me that one factor I have not checked is to try
>>the modems with the USB adapter rather than the direct hookup to the
>>serial port, but I would guess that wouldn't make a difference but could
>>be wrong. I needed the adapter for the laptop because it doesn't have a
>>serial port.
>
> Don't know what your setup is - can't say. Do check /sbin/ifconfig -a
> while connected - are you getting significant ppp errors?
>
> Old guy
I wanted to thank you for the help. Your comment on the default speed as
9600 was the key. Checking the connection speed in Yast I found 4000000,
apparently the USB speed. When I set it to the correct speed for a dialup
modem, it worked great.
The fast clock turned out to be more of a problem. I tried your two
suggestions of no_timer_check and no_timer_check=0. Neither worked. I even
tried 1, 2 and -1 in place of the zero. No effect. I found in the Mandriva
newsgroup the suggestion that no_timer_check==0 works. It didn't for me.
Googling for Suse fast clock I managed to find the correct thing to type in
at the boot prompt. It's noapic. I don't know what it means but it works.
Sounds like something to do with cameras. Oddly it was in kind of an
oblique statement.
I wasn't expecting anything--I had kind of resigned myself to 48-hour days--
but it worked fine.
Still, I'm crediting it to you because you managed to clarify the proper
search phrase.
I'm mentioning all these in case someone else has problems with the 64-bit
incarnation of SuSE on a laptop.
Just in response to your criticism of my posting in three groups. While not
cross-posting--you called it multi-posting--I saw it as legitimate because
I didn't know if my problems were hardware- or software-related.
I was looking it at as drawing on three sources of expertise, not knowing
which one was the proper one. They were the general Linux group, SuSE and
this one. Since I had a SuSE distribution, I thought I ought to check
there.
The intent was not to annoy anyone but to solve my ridiculous number of
weird laptop problems expeditiously. Most were solved by switching to SuSE
9.3, the rest by changing settings, as detailed here.
They are now all solved. The thing works great. I had been thinking about
frisbeeing it before.
Thank you to everyone.
Rod
-- Author of "Linux for Non-Geeks--Clear-eyed Answers for Practical Consumers" and "Boring Stories From Uncle Rod." To reply take the extra "o" from "roodwriter."
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