Bug 41352
Summary: | VT1708B - No sound in front panel | ||
---|---|---|---|
Product: | Drivers | Reporter: | Elder Marco (eldermarco) |
Component: | Sound(ALSA) | Assignee: | Jaroslav Kysela (perex) |
Status: | RESOLVED CODE_FIX | ||
Severity: | normal | CC: | alan, eldermarco, tiwai |
Priority: | P1 | ||
Hardware: | All | ||
OS: | Linux | ||
Kernel Version: | 3.0.3 | Subsystem: | |
Regression: | No | Bisected commit-id: | |
Attachments: |
alsa-info.sh output
alsamixer -c0 |
Description
Elder Marco
2011-08-18 17:43:46 UTC
How is the hardware configuration? One line-out, one line-in and one mic-in in rear panel, and one HP-out and one mic-in in front panel? It's possible that your front box is no HD-audio compliant but AC97 one. (There are often such machines.) In such a case, the pin-detection doesn't work because of incompatible connection. Since 3.0 kernel, the driver provides "Dynamic Power-Control" mixer enum. Turn this off for disabing the power-control per pin-detection. Hello, thanks for your reply. In reply to comment #1) > How is the hardware configuration? One line-out, one line-in and one mic-in > in > rear panel, and one HP-out and one mic-in in front panel? > Well, for front panel is line-out (green connector) and mic-in (pink connector). > It's possible that your front box is no HD-audio compliant but AC97 one. > (There are often such machines.) In such a case, the pin-detection doesn't > work because of incompatible connection. > > Since 3.0 kernel, the driver provides "Dynamic Power-Control" mixer enum. > Turn > this off for disabing the power-control per pin-detection. I'm sorry. How can I do this? Where? The sound works fine with kernel 2.6.32, 2.6.31, etc. Thanks again. (In reply to comment #2) > Hello, thanks for your reply. > > > It's possible that your front box is no HD-audio compliant but AC97 one. > > (There are often such machines.) In such a case, the pin-detection doesn't > > work because of incompatible connection. > > > > Since 3.0 kernel, the driver provides "Dynamic Power-Control" mixer enum. > Turn > > this off for disabing the power-control per pin-detection. > I'm sorry. How can I do this? Where? Run "alsamixer -c0", choose "Dynamic Power-Control" via left/right key, and change the value by up/down key. Unfortunately, I can't find this option on fedora 15 (kernel 2.0 aka 2.6.40) or Arch Linux (kernel 3.0.3). Alsamixer version is 1.0.24.1 A screenshot is attached. Created attachment 69302 [details]
alsamixer -c0
Obs: The option Independent HP is turned off, but doesn't work. Ah, sorry, it's included since 3.1-rc1. Try 3.1-rc2 kernel or the latest Linus tree. Thanks. I'll wait for this release. |