Comment 50 for bug 269027

HP Pavilion dv5 1135la here. Running Ubuntu 9.04
Same problem: laptop speakers dont work, sound works with headphones plugged.

Step 1:
 0 [SB ]: HDA-Intel - HDA ATI SB
                      HDA ATI SB at 0xd2400000 irq 16
 1 [HDMI ]: HDA-Intel - HDA ATI HDMI
                      HDA ATI HDMI at 0xd2310000 irq 19

Step 2:
==> /proc/asound/card0/codec#0 <==
Codec: IDT 92HD71B7X

==> /proc/asound/card0/codec#1 <==
Codec: LSI ID 1040

Step 3:
i open the fila, but dont really know what to look for. :S

step 4
Practically ignoring Step 3, i modified the file in this step (btw, i found it as "alsa-base.conf")

Step 5:
"/etc/modprobe.d/options" opens a blank file. that means that file is not there, or doesnt exist in that location

I dont know what to do now.

And the solution Rajesh provided didnt work. I downloaded the .deb file, but the instalation failed.
This is what i got:

ERROR: build failed. Please review the build log at /somelocation/file.log
dpkg: error processing alsa-driver-linuxant (--install):
   subprocess post-installation script returned error exit status 2
Errors were encountered while processing:
alsa-driver-linuxant
(Reading database ... 113378 files and directories currently installed.)
Preparing to replace alsa-driver-linuxant 1.2.18.0 (using ../alsa-driver-linuxant_1.0.18.0_all.deb) ...
FATAL: Module snd_hda_intel not found.
FATAL: Module snd_seq_dummy not found.
FATAL: Module snd_pcm_oss not found.
FATAL: Module snd_seq_oss not found.
FATAL: Module snd_seq_midi not found.

Anyway, i modified the file at /etc/modprobe.d/alsa-base.conf and added the model=laptop at the end of the file, restarted (btw, it configures some kernel files and it takes A LONG TIME to even start. :S) and didnt work.

tl;dr: i cant make this work with the first solution or rajeshz's in my hp dv5 1135la, now my ubuntu 9.04 takes A LOT to start and the processor is working as hell (which heats up my laptop as hell) :(