[SOLVED] Lenovo thinkpad t43 44u can't sound in Centos 5.

brave heart · 05-16-2007, 04:42 AM

Hi, all

I try Centos 5 on an lenovo thinkpad lattop(t43 44u). However, it can't sound out.

Is here anyone tried Centos 5 on this laptop?

Thanks,

camorri · 05-16-2007, 09:21 AM

I have not, but lots of others have. See this link.

http://jefke.free.fr/writings/thinkpad_t43/

or this link for more examples.

http://www.linux-on-laptops.com/ibm.html

Sound works. You probably need to modprobe the sound driver.

brave heart · 05-16-2007, 10:55 PM

Hey, camorri. Thank you for reply.

I looked the 2 pages you mentioned. It' good enough. However, it seems no related contents about my laptop(centos 5 on lenovo thinkpad t43 2668 44u). And what's also not so good is that I can't get several items about this issue by the google search.

Anyway, thanks for your attention.

camorri · 05-17-2007, 09:05 AM

Centos is another distro, if one works, you can get just about anything else working. Lots of main stream stuff seems to work on your model.

BTW, just so you know, the 44u on the model of Think-pad just represents the amount of ram and hard drive size on your system, as manufactured. This part is no big deal. The more important part is the t43 2668 machine type. ( I worked for IBM for 32 years so I'm familiar with stuff most people don't have a clew about. )

If you have a particular thing to get working, post it, and I'll see what I can help with.

brave heart · 05-18-2007, 12:12 AM

Hi, camorri. It's very nice to get your such experienced help.

Do you think that I should provide any further information? And please also teach how to?

As my 2668 44u currently is not handy. I'll post the required messages ASAP.

Thanks for your kindly help!

camorri · 05-18-2007, 08:55 AM

From what you have posted, it is sound that is not working.

Would you open a konsole and run the command '/sbin/lsmod' ( without quotes ) and post the results here. I'll see if I can find out what sound hardware you have. If you know, please post it.

If the driver is loaded, the next thing is to open a mixer and make sure the volume is turned up, and not muted. You may also have to run 'alsaconf' as root to configure the card.

camorri · 05-18-2007, 12:22 PM

From Levono's web site, this is what they list as the audio hardware.

Quote:

Audio
Analog Devices AD1981B AC'97 Soft Audio (Full-duplex)
AC'97 2.2 compatible
Speaker technology
Stereo speaker
Volume up, down, and mute buttons
Two audio jacks:
One for external stereo speakers or headphone
One for external microphone

This is the link I found the information on.

http://www-307.ibm.com/pc/support/si...cid=MIGR-58315

Just incase you want to look at it your self. BTW you can find all the hardware manuals there also.

brave heart · 05-19-2007, 02:38 AM

Camorri, thanks for your help.

I find a stupid mistake that I make. After reboot my t43, I push the volume button, then it can sound out. Alas! I think that the previous no sound is caused by my forgotten of the hardware volume button!

Thanks for your generous help so much!

May I ask a question about my thinkpad? For I feel it's too slow in data tranfer campared with my another dell laptop(all in windows xp). I wander if it's caused by my reinstall the OS(missing some driver)?

Or if it's not so proper to put forward such question in here, you can tell me how to provide the information which you need.

Thank you once again and nice weekends!

camorri · 05-19-2007, 08:54 AM

Quote:

I feel it's too slow in data tranfer campared with my another dell

What type of transfer are you talking about? Network, or hard drive? How are you measuning the speed?

brave heart · 05-20-2007, 04:36 AM

I mean the data copy speed(drive to drive). Sometimes I copy some file(huge file will be more clear) from the moveable drive, my 2668 44u always obviously slower than dell(with lower cpu speed)'s. I think it's wierd(44u should be better than dell).

Just the feeling compared with another dell laptop(with lower cpu speed), for I once to use some tool(pctutu) to test the whole laptop, but didn't find any useful clues.

My 44u cpu info as following:

Code:

[root@localhost ~]# cat /proc/cpuinfo 
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 13
model name      : Intel(R) Pentium(R) M processor 1.86GHz
stepping        : 8
cpu MHz         : 798.065
cache size      : 2048 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss tm pbe nx up est tm2
bogomips        : 1996.67

[root@localhost ~]#

The compared dell cpu info as following:

Code:

[root@localhost mpg123-0.65]# cat /proc/cpuinfo 
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 13
model name      : Intel(R) Pentium(R) M processor 1.60GHz
stepping        : 6
cpu MHz         : 600.000
cache size      : 2048 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr mce cx8 mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss tm pbe up est tm2
bogomips        : 1196.77

[root@localhost mpg123-0.65]#

camorri · 05-20-2007, 06:53 AM

For drive to drive file copying, cpu speed has little to do with throughput. It is mostly affected by the way the dirves are set up.

To find out use hdparm to find out what parameters are set. Often DMA is not enabled, and will provide a significant improvment. Linux will allow you to adjust the HD parms, windows won't.

Caution, use hdparm with care. Go slowly, and test to make sure you are not making the system unstable. I will find a How-to and post it.

Hope this helps.

camorri · 05-20-2007, 06:56 AM

Try this link for a good How-to on hdparm.

http://www.linuxdevcenter.com/pub/a/...29/hdparm.html

brave heart · 05-20-2007, 09:51 PM

Hey, camorri. Thanks for your help.

It's good to understand the hdparm, however, my t43 seems had a SATA or SCSI drive(/dev/sda). And how should I handle this kind of drive? And I especially feel the hard drive low speed in windows OS(not in linux

). Can it also be adjusted via this way or any other way else?

Another question is how can I know if my drive is SATA or SCSI? For they are all /dev/sda. I guess t43 should use SCSI for it's better performance. Am I right?

camorri · 05-21-2007, 06:40 AM

From the system specifications on Levono's web site, here is part of the drive specs.

Quote:

Hard drive features

* Supported hard drive thickness: 9.5mm for all systems
* Standard 30GB, 40GB, 60GB, 80GB hard drive sizes
* Supports one additional hard drive which can be used concurrently to offer expanded storage in the Ultrabay Slim
* S.M.A.R.T technology to issue an alert if a hardware failure is pending
* ATA Bus Interface

ATA bus interface is what is listed. I had a look at the hardware maintenance manual, same site, but it is not clear from there the drive type. It is not scsi, that I'm sure of. You can, and should have a copy of the HMM.

Quote:

drive low speed in windows OS(not in linux

Windows being slow is nothing new. Have you done the basics, like cleaning unnecessary files, and running defrag? Virus checking, and spyware can slow you down also. I know all too well, I have an XP system my kids use, and about every three months I have to spend time running these utilities just to keep it going. It takes about 2 hours to let defrag run on the 120 gig disk on that system, so be prepared to start it, ( I would suggest going to bed ) and let it run to completion.

Then see how it preforms.

brave heart · 05-21-2007, 10:31 PM

Thanks, camorri.

I downloaded&checked the HMM, can also find the info you provided. And I also agree with you that drive is maybe not SCSI(for it's expensive for a PC)but would like to be a SATA(but I don't know how to check this via linux command, just a guess).

And what's clear is that my 44u lower speed is not for virus, spyware or not defrag issue. For I tried date transfer nearly in clean system(which I just reinstalled), and at least do it in 3 times.

So, any other suggestions?