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| author | Jaroslav Kysela <perex@suse.cz> | 2004-05-17 19:25:22 +0200 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2004-05-17 19:25:22 +0200 |
| commit | 646134728d204d55a225b08b348f3d8f46b24379 (patch) | |
| tree | a17173c82e2deae33c924d386d06f855154a83fb /Documentation | |
| parent | 9c9b6622d65a988aebb93f7cbcecb269a6a2c0ae (diff) | |
| download | history-646134728d204d55a225b08b348f3d8f46b24379.tar.gz | |
ALSA CVS update - Takashi Iwai <tiwai@suse.de>
Documentation,NM256 driver
- added a blacklist to avoid the possible hang-up at module loading.
- added notes about the hang-up problem to ALSA-Configuration.txt.
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/sound/alsa/ALSA-Configuration.txt | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt index 95f0f919668dde..f2e29bb4eb05cc 100644 --- a/Documentation/sound/alsa/ALSA-Configuration.txt +++ b/Documentation/sound/alsa/ALSA-Configuration.txt @@ -788,6 +788,8 @@ Module parameters Module supports autoprobe and multiple chips (max 8). + The power-management is supported. + Note: on some notebooks the buffer address cannot be detected automatically, or causes hang-up during initialization. In such a case, specify the buffer top address explicity via @@ -797,9 +799,24 @@ Module parameters Sony F270: buffer_top=0x272800 The driver supports only ac97 codec. It's possible to force to initialize/use ac97 although it's not detected. In such a - case, use force_ac97=1 option. - - The power-management is supported. + case, use force_ac97=1 option - but *NO* guarantee whether it + works! + + Note: The NM256 chip can be linked internally with non-AC97 + codecs. This driver supports only the AC97 codec, and won't work + with machines with other (most likely CS423x or OPL3SAx) chips, + even though the device is detected in lspci. In such a case, try + other drivers, e.g. snd-cs4232 or snd-opl3sa2. Some has ISA-PnP + but some doesn't have ISA PnP. You'll need to speicfy isapnp=0 + and proper hardware parameters in the case without ISA PnP. + + Note: This driver is really crappy. It's a porting from the + OSS driver, which is a result of black-magic reverse engineering. + The detection of codec will fail if the driver is loaded *after* + X-server as described above. You might be able to force to load + the module, but it may result in hang-up. Hence, make sure that + you load this module *before* X if you encounter this kind of + problem. Module snd-opl3sa2 ------------------ |