Even with the volume set at maximum, the speakers on my laptop are not as loud as they should be. I have been trying to get them louder with the alsa pre-amp method Alien Bob suggests in his blog here:
I have tried every variation of the code presented in the blog, including replacing "plug" with "hw" in both versions of code given. The very first time I tried with the first block of code, I found that the "Pre-Amp" setting showed up in alsamixer, but I could not adjust it. I tried as a normal user and then as root, but the setting would not budge.
I then tried all the other variations, but after that first time, the Pre-Amp setting wouldn't even show up in alsamixer. So I went back to the original block of code
which is the one that had created the setting the first time (even though I could not change it), and this time, the setting wasn't even there. I tried a whole bunch of different things including removing /etc/asound.state and /var/lib/alsa/asound.state and rebooting 20 different times before I realized that in order for the Pre-Amp setting to show up, I had to be actively playing sound. I started a youtube video and there it was. But still, I am not able to change the setting.
I am looking around for more references to this issue, but unfortunately, the unofficial alsa wiki referenced in Alien's post is not there anymore. If anyone knows what I am doing wrong or can suggest something I haven't tried, I would be grateful.