No audio on my probook 4510s

Hello,
I have a new HP probook 4510s with an audio problem, more precisely no audio at all. I followed all the troubleshooting, download audio drivers, delete them, install again... all I could find, but nothing seem to work. Any idea before I take it to repair?
Ah, the only thing I didn't do is to check if the sound is turned on in the BIOS and I don't know how to do this.
Thanks a lot!
Mara
Message Edited by mara4510s on 07-20-2009 04:52 AM

In the audio panel I have only the ATI HD REAR card.
I've tried to install the SoundMAX driver but after unpacking it comes up with the following error:
The audio Driver files do not support your computer hardware.
I have several laptops with the same problem (Windows XP SP3)

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Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
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[this thread was split from original thread - https://bbs.archlinux.org/viewtopic.php?id=100457]
Ok so I have this same laptop (HP Probook 4510s) and have same problem.
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Last edited by amish (2014-06-14 16:11:52)

@amish, I have the same problems as you. My laptop model is very similar to yours; it's a HP ProBook 4410s. Unlike you, I run off a 128G SSD, so I don't have the option of trying out so many distros and OSes. Here's what I know:
Automatic fan speed control used to work properly some 2-3 months ago. I did not run CPU intensive tasks for a few months, and so I did not notice that the fan speed would not change after boot-up.
"$ sensors" used to report both, CPU temperatures and acpi temperatures. Now, it shows just CPU temperatures.
Under /sys/class/hwmon, I used to have hwmon0 and hwmon1, for CPU temps and acpi temps, respectively
Now, when I do sensors-detect, it finds the Intel digital thermal sensor properly. But after that, one of the odd things that I notice is:
Trying family `SMSC'... Yes
Found unknown chip with ID 0x4501
I guess this is why "$ sensors" does not show my ACPI temperatures. However, "$ acpi -t" shows me:
Thermal 0: ok, 45.0 degrees C
Thermal 1: ok, 22.9 degrees C
Thermal 2: ok, 36.0 degrees C
Thermal 3: ok, 34.0 degrees C
Thermal 4: ok, 41.0 degrees C
Thermal 5: ok, 16.0 degrees C
The sensors work. On warm days these sensors show higher temperatures than on cold days.
I use a kludge to manually control the fan. This is what I get on my laptop:
# cd /sys/devices/virtual/thermal
# for i in cooling_device<0-15>; do; echo -n $i/cur_state \ ; cat $i/cur_state; done
cooling_device0/cur_state 0
cooling_device1/cur_state 0
cooling_device10/cur_state 0
cooling_device11/cur_state 0
cooling_device12/cur_state 0
cooling_device13/cur_state 0
cooling_device14/cur_state 1
cooling_device15/cur_state 0
cooling_device2/cur_state 0
cooling_device3/cur_state 0
cooling_device4/cur_state 0
cooling_device5/cur_state 0
cooling_device6/cur_state 0
cooling_device7/cur_state 0
cooling_device8/cur_state 0
cooling_device9/cur_state 0
I then manually change the bytes... until the temperature (as reported by "$ sensors") is acceptable. The command is something like:
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Perhaps I should write some code to automate this hack, but right now, this manual control "works" for me, and does not take up too much attention. I hope someone more knowledgeable of sensor drivers fixes it before I get down to hacking up some code.
Last edited by prash (2014-06-09 00:37:57)

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