| … | |
… | |
| 9 | <author title="Author"><mail link="g2boojum@gentoo.org"> |
9 | <author title="Author"><mail link="g2boojum@gentoo.org"> |
| 10 | Grant Goodyear</mail> |
10 | Grant Goodyear</mail> |
| 11 | </author> |
11 | </author> |
| 12 | <author title="Author"><mail link="agenkin@gentoo.org"> |
12 | <author title="Author"><mail link="agenkin@gentoo.org"> |
| 13 | Arcady Genkin</mail> |
13 | Arcady Genkin</mail> |
| 14 | </author> |
14 | </author> |
| 15 | <author title="Editor"><mail link="zhen@gentoo.org"> |
15 | <author title="Editor"><mail link="zhen@gentoo.org"> |
| 16 | John P. Davis</mail> |
16 | John P. Davis</mail> |
| 17 | </author> |
17 | </author> |
| 18 | <author title="Editor"><mail link="swift@gentoo.org"> |
18 | <author title="Editor"><mail link="swift@gentoo.org"> |
| 19 | Sven Vermeulen</mail> |
19 | Sven Vermeulen</mail> |
| 20 | </author> |
20 | </author> |
| 21 | <author title="Editor"><mail link="bennyc@gentoo.org"> |
21 | <author title="Editor"><mail link="bennyc@gentoo.org"> |
| 22 | Benny Chuang</mail> |
22 | Benny Chuang</mail> |
| 23 | </author> |
23 | </author> |
|
|
24 | <author title="Editor"><mail link="blubber@gentoo.org"> |
|
|
25 | Tiemo Kieft</mail> |
|
|
26 | </author> |
| 24 | |
27 | |
| 25 | <license/> |
28 | <license/> |
| 26 | |
29 | |
| 27 | <abstract> |
30 | <abstract> |
| 28 | This guide will show you how to set up the Advanced Linux Sound Architecture (ALSA) on Gentoo Linux. |
31 | This guide will show you how to set up the Advanced Linux Sound Architecture (ALSA) on Gentoo Linux. |
| 29 | In addition to the Gentoo Linux Desktop Configuration Guide, this guide is supposed to give you more information on this subject. </abstract> |
32 | In addition to the Gentoo Linux Desktop Configuration Guide, this guide is supposed to give you more information on this subject. </abstract> |
| 30 | |
33 | |
| 31 | <version>1.3.1</version> |
34 | <version>1.3.2</version> |
| 32 | <date>September 12, 2003</date> |
35 | <date>September 25, 2003</date> |
| 33 | |
36 | |
| 34 | <chapter> |
37 | <chapter> |
| 35 | <title>Introduction</title> |
38 | <title>Introduction</title> |
| 36 | <section> |
39 | <section> |
| 37 | <title>What is ALSA?</title> |
40 | <title>What is ALSA?</title> |
| 38 | <body> |
41 | <body> |
| 39 | <p> |
42 | <p> |
| 40 | The Advanced Linux Sound Architecture (ALSA) is a project to improve the Linux sound subsystem by rewriting |
43 | The Advanced Linux Sound Architecture (ALSA) is a project to improve the Linux sound subsystem by rewriting |
| 41 | large chunks of it. |
44 | large chunks of it. |
| 42 | It is anticipated that ALSA will make it into Linux kernel 2.6.x (or 3.x.x -- whichever comes first) as it becomes ready. |
45 | It is anticipated that ALSA will make it into Linux kernel 2.6.x (or 3.x.x -- whichever comes first) as it becomes ready. |
| 43 | </p> |
46 | </p> |
| 44 | |
47 | |
| 45 | <p> |
48 | <p> |
| 46 | ALSA provides audio and MIDI functionality for Linux. |
49 | ALSA provides audio and MIDI functionality for Linux. |
| 47 | </p> |
50 | </p> |
| … | |
… | |
| 100 | <p> |
103 | <p> |
| 101 | First we'll make sure that our kernel configuration is ready for use with ALSA. |
104 | First we'll make sure that our kernel configuration is ready for use with ALSA. |
| 102 | All you need in your kernel configuration is having Sound Card Support set to be built as a module (M). |
105 | All you need in your kernel configuration is having Sound Card Support set to be built as a module (M). |
| 103 | This will build <c>soundcore.o</c>. |
106 | This will build <c>soundcore.o</c>. |
| 104 | </p> |
107 | </p> |
| 105 | <p> |
108 | <p> |
| 106 | <note> |
109 | <note> |
| 107 | Possibly, this will also work when you built Sound Card Support in the kernel (Y) instead of building it as a module (M). |
110 | Possibly, this will also work when you built Sound Card Support in the kernel (Y) instead of building it as a module (M). |
| 108 | However, the official ALSA documentation suggests building it as a module, since ALSA will try loading it. |
111 | However, the official ALSA documentation suggests building it as a module, since ALSA will try loading it. |
| 109 | </note> |
112 | </note> |
| 110 | </p> |
113 | </p> |
| 111 | <p>If you already have a working kernel configuration, make sure you remove all sound drivers (except for Sound Card Support). |
114 | <p>If you already have a working kernel configuration, make sure you remove all sound drivers (except for Sound Card Support). |
| 112 | If you wish to do this without having to reboot, you could do like this: |
115 | If you wish to do this without having to reboot, you could do like this: |
| 113 | </p> |
116 | </p> |
| 114 | <pre> |
117 | <pre> |
| 115 | # <c>cd /usr/src/linux</c> |
118 | # <i>cd /usr/src/linux</i> |
| 116 | # <c>cp .config ~/</c> |
119 | # <i>cp .config ~/</i> |
| 117 | # <c>make mrproper</c> |
120 | # <i>make mrproper</i> |
| 118 | # <c>cp ~/.config .</c> |
121 | # <i>cp ~/.config .</i> |
| 119 | # <c>make menuconfig</c> |
122 | # <i>make menuconfig</i> |
| 120 | </pre> |
123 | </pre> |
| 121 | <p> |
124 | <p> |
| 122 | Now select <e>Sound Card Support</e> as Module (M) and deselect all other sound drivers. |
125 | Now select <e>Sound Card Support</e> as Module (M) and deselect all other sound drivers. |
| 123 | Exit and say Y to save your kernel configuration. |
126 | Exit and say Y to save your kernel configuration. |
| 124 | After that, build the modules: |
127 | After that, build the modules: |
| 125 | </p> |
128 | </p> |
| 126 | <pre> |
129 | <pre> |
| 127 | # <c>make dep clean</c> |
130 | # <i>make dep clean</i> |
| 128 | # <c>make modules modules_install</c> |
131 | # <i>make modules modules_install</i> |
| 129 | </pre> |
132 | </pre> |
| 130 | <p> |
133 | <p> |
| 131 | Before installing your new modules, this last line will delete all your previous modules, |
134 | Before installing your new modules, this last line will delete all your previous modules, |
| 132 | even the ones from a previous ALSA installation. |
135 | even the ones from a previous ALSA installation. |
| 133 | </p> |
136 | </p> |
| 134 | <p> |
137 | <p> |
| 135 | <impo> |
138 | <impo> |
| 136 | This means, whenever you recompile your kernel later on, you MUST recompile <c>alsa-driver</c>. |
139 | This means, whenever you recompile your kernel later on, you MUST recompile <c>alsa-driver</c>. |
| 137 | </impo> |
140 | </impo> |
| 138 | </p> |
141 | </p> |
| 139 | <p> |
142 | <p> |
| 140 | <note>However, there's no need to reinstall <c>nvidia-kernel</c>, the Nvidia drivers are in a separate directory |
143 | <note>However, there's no need to reinstall <c>nvidia-kernel</c>, the Nvidia drivers are in a separate directory |
| 141 | in <path>/lib/modules/*/video</path> and won't get deleted by a <c>make modules modules_install</c> |
144 | in <path>/lib/modules/*/video</path> and won't get deleted by a <c>make modules modules_install</c> |
| 142 | </note> |
145 | </note> |
| 143 | </p> |
146 | </p> |
| 144 | </body> |
147 | </body> |
| 145 | </section> |
148 | </section> |
| 146 | |
149 | |
| 147 | <section> |
150 | <section> |
| 148 | <title>ALSA modules</title> |
151 | <title>ALSA modules</title> |
| 149 | <body> |
152 | <body> |
| 150 | |
153 | |
| 151 | <p> |
154 | <p> |
| 152 | Now it's time to install the ALSA drivers for your soundcard(s). If your soundcard is PCI, you can find out the name |
155 | Now it's time to install the ALSA drivers for your soundcard(s). If your soundcard is PCI, you can find out the name |
| 153 | and type of your soundcard by looking at the output of /proc/pci |
156 | and type of your soundcard by looking at the output of /proc/pci. |
| 154 | <pre># <c>grep audio /proc/pci</c></pre> |
157 | </p> |
|
|
158 | <pre> |
|
|
159 | # <i>grep audio /proc/pci</i> |
| 155 | </p> |
160 | </pre> |
|
|
161 | |
| 156 | |
162 | |
| 157 | <p> |
163 | <p> |
| 158 | <warn> |
164 | <warn> |
| 159 | If you had a previous sound setup and there are still non-ALSA sound modules loaded, unload them <e>now</e>. |
165 | If you had a previous sound setup and there are still non-ALSA sound modules loaded, unload them <e>now</e>. |
| 160 | Check with <c>lsmod</c> and use <c>rmmod</c> to unload all sound-related modules on your system. |
166 | Check with <c>lsmod</c> and use <c>rmmod</c> to unload all sound-related modules on your system. |
| 161 | </warn> |
167 | </warn> |
| 162 | </p> |
168 | </p> |
| 163 | |
169 | |
| 164 | <p> |
170 | <p> |
| 165 | We could simply do an <c>emerge alsa-driver</c> now, this would compile and install <e>all</e> ALSA sound drivers. |
171 | We could simply do an <c>emerge alsa-driver</c> now, this would compile and install <e>all</e> ALSA sound drivers. |
| 166 | </p> |
172 | </p> |
| 167 | <p> |
173 | <p> |
| 168 | However, to save some time, lookup the <e>Module Name</e> of your soundcard(s) on the |
174 | However, to save some time, lookup the <e>Module Name</e> of your soundcard(s) on the |
| 169 | <uri link="http://www.alsa-project.org/alsa-doc">ALSA Soundcard Matrix</uri> by following the <e>Details</e> link in the <e>Driver and Docs</e> column in the row of the chipset of your soundcard. |
175 | <uri link="http://www.alsa-project.org/alsa-doc">ALSA Soundcard Matrix</uri> by following the <e>Details</e> link in the <e>Driver and Docs</e> column in the row of the chipset of your soundcard. |
| 170 | Mine is <c>snd-emu10k1</c>, since I have an SBlive! soundcard, with the <e>EMU10K1</e> chipset. |
176 | Mine is <c>snd-emu10k1</c>, since I have an SBlive! soundcard, with the <e>EMU10K1</e> chipset. |
| 171 | We'll set ALSA_CARDS environment to the value of the module name before emerging (but without the snd prefix), so emerge will only compile the drivers we need. |
177 | We'll set ALSA_CARDS environment to the value of the module name before emerging (but without the snd prefix), so emerge will only compile the drivers we need. |
| 172 | </p> |
178 | </p> |
| 173 | |
179 | |
| 174 | <pre> |
180 | <pre> |
| 175 | # <c>env ALSA_CARDS='emu10k1' emerge alsa-driver</c> |
181 | # <i>env ALSA_CARDS='emu10k1' emerge alsa-driver</i> |
| 176 | </pre> |
182 | </pre> |
| 177 | <note> |
183 | <note> |
| 178 | You can also add this value in <path>/etc/make.conf</path>, so when you have to emerge the alsa-driver later on you can just run <c>emerge alsa-driver</c>. |
184 | You can also add this value in <path>/etc/make.conf</path>, so when you have to emerge the alsa-driver later on you can just run <c>emerge alsa-driver</c>. |
| 179 | For example, like this: <c>echo 'ALSA_CARDS="emu10k1"' >> /etc/make.conf</c> |
185 | For example, like this: <c>echo 'ALSA_CARDS="emu10k1"' >> /etc/make.conf</c> |
| 180 | </note> |
186 | </note> |
| 181 | |
187 | |
| 182 | <note> |
188 | <note> |
| 183 | When you want to install ALSA drivers for more than one soundcard, you could set ALSA_CARDS to a space-separated list |
189 | When you want to install ALSA drivers for more than one soundcard, you could set ALSA_CARDS to a space-separated list |
| 184 | of drivers; like this: <c>env ALSA_CARDS='emu10k1 intel8x0 ens1370' emerge alsa-driver</c> |
190 | of drivers; like this: <c>env ALSA_CARDS='emu10k1 intel8x0 ens1370' emerge alsa-driver</c> |
| 185 | </note> |
191 | </note> |
| 186 | |
192 | |
| 187 | <note>If you want to have OSS compatibility, make sure to emerge <i>alsa-oss</i>, it is the ALSA/OSS compatibility |
193 | <note>If you want to have OSS compatibility, make sure to emerge <i>alsa-oss</i>, it is the ALSA/OSS compatibility |
| 188 | wrapper. </note> |
194 | wrapper. </note> |
| 189 | |
195 | |
| 190 | <note>If you plan on recompiling your kernels numerous times, it might |
196 | <note>If you plan on recompiling your kernels numerous times, it might |
| … | |
… | |
| 212 | |
218 | |
| 213 | <pre caption = "Emerging alsa-utils"> |
219 | <pre caption = "Emerging alsa-utils"> |
| 214 | # <i>emerge alsa-utils</i> |
220 | # <i>emerge alsa-utils</i> |
| 215 | </pre> |
221 | </pre> |
| 216 | |
222 | |
| 217 | <p> |
223 | <p> |
| 218 | Hereafter, we need to edit <path>/etc/modules.d/alsa</path>. |
224 | Hereafter, we need to edit <path>/etc/modules.d/alsa</path>. |
| 219 | </p> |
225 | </p> |
| 220 | <warn> |
226 | <warn> |
| 221 | There is no need to edit <path>/etc/modules.conf</path>. Instead, always edit files in <path>/etc/modules.d</path>. |
227 | There is no need to edit <path>/etc/modules.conf</path>. Instead, always edit files in <path>/etc/modules.d</path>. |
| 222 | </warn> |
228 | </warn> |
| 223 | <p> |
229 | <p> |
| 224 | Check the ALSA portion <e>at the bottom of the file</e>. |
230 | Check the ALSA portion <e>at the bottom of the file</e>. |
| 225 | By tweaking this line you can specify the max number of soundcards you have (generally, just one). |
231 | By tweaking this line you can specify the max number of soundcards you have (generally, just one). |
| 226 | </p> |
232 | </p> |
| 227 | <p> |
|
|
| 228 | <pre caption="At the bottom of /etc/modules.d/alsa"> |
233 | <pre caption="At the bottom of /etc/modules.d/alsa"> |
| 229 | # Set this to the correct number of cards. |
234 | <comment>Set this to the correct number of cards.</comment> |
| 230 | <c>options snd cards_limit=1</c> |
235 | options snd cards_limit=1 |
| 231 | </pre> |
|
|
| 232 | </p> |
236 | </pre> |
| 233 | <p> |
237 | <p> |
| 234 | Now we'll specify the sounddriver(s) ALSA should use. In the same file, edit like this: |
238 | Now we'll specify the sounddriver(s) ALSA should use. In the same file, edit like this: |
|
|
239 | </p> |
| 235 | <pre caption="In /etc/modules.d/alsa"> |
240 | <pre caption="In /etc/modules.d/alsa"> |
| 236 | ## and then run `modules-update' command. |
241 | ## and then run `modules-update' command. |
| 237 | ## Read alsa-driver's INSTALL file in /usr/share/doc for more info. |
242 | ## Read alsa-driver's INSTALL file in /usr/share/doc for more info. |
| 238 | ## |
243 | ## |
| 239 | ## ALSA portion |
244 | ## ALSA portion |
| 240 | <c>alias snd-card-0 snd-emu10k1</c> |
245 | alias snd-card-0 snd-emu10k1 |
| 241 | <c>## If you have more than one, add: |
246 | <comment>## If you have more than one, add:</comment> |
| 242 | ## alias snd-card-1 snd-intel8x0 |
247 | ## alias snd-card-1 snd-intel8x0 |
| 243 | ## alias snd-card-2 snd-ens1370</c> |
248 | ## alias snd-card-2 snd-ens1370 |
| 244 | ## OSS/Free portion |
249 | ## OSS/Free portion |
| 245 | ## alias sound-slot-0 snd-card-0 |
250 | ## alias sound-slot-0 snd-card-0 |
| 246 | ## alias sound-slot-1 snd-card-1 |
251 | ## alias sound-slot-1 snd-card-1 |
| 247 | ## |
252 | ## |
| 248 | </pre> |
253 | </pre> |
| 249 | </p> |
|
|
| 250 | <p> |
|
|
| 251 | <note> |
254 | <note> |
| 252 | If you have more than one soundcard, adjust the <c>cards_limit</c> value and add more snd-card aliases to the file. |
255 | If you have more than one soundcard, adjust the <c>cards_limit</c> value and add more snd-card aliases to the file. |
| 253 | I don't have experience with this, but you can find examples for configurations with two or more soundcards in |
256 | I don't have experience with this, but you can find examples for configurations with two or more soundcards in |
| 254 | <uri link="http://www.alsa-project.org/alsa-doc/alsa-howto/c1660.htm">Chapter 6</uri> |
257 | <uri link="http://www.alsa-project.org/alsa-doc/alsa-howto/c1660.htm">Chapter 6</uri> |
| 255 | of the <uri link="http://www.alsa-project.org/alsa-doc/alsa-howto/alsa-howto.html">ALSA Howto</uri>. |
258 | of the <uri link="http://www.alsa-project.org/alsa-doc/alsa-howto/alsa-howto.html">ALSA Howto</uri>. |
| 256 | </note> |
259 | </note> |
| 257 | </p> |
|
|
| 258 | <p> |
260 | <p> |
| 259 | Last thing to do in this file, almost at the end, check if these lines are there and uncommented: |
261 | Last thing to do in this file, almost at the end, check if these lines are there and uncommented: |
|
|
262 | </p> |
| 260 | <pre caption="Near the end of /etc/modules.d/alsa"> |
263 | <pre caption="Near the end of /etc/modules.d/alsa"> |
| 261 | alias /dev/mixer snd-mixer-oss |
264 | alias /dev/mixer snd-mixer-oss |
| 262 | alias /dev/dsp snd-pcm-oss |
265 | alias /dev/dsp snd-pcm-oss |
| 263 | alias /dev/midi snd-seq-oss |
266 | alias /dev/midi snd-seq-oss |
| 264 | </pre> |
267 | </pre> |
| 265 | </p> |
|
|
| 266 | <p> |
268 | <p> |
| 267 | Now double-check the file <path>/etc/modules.d/alsa</path> and when you're sure everyting is ok, run <c>modules-update</c>. |
269 | Now double-check the file <path>/etc/modules.d/alsa</path> and when you're sure everyting is ok, run <c>modules-update</c>. |
| 268 | <pre> |
270 | <pre> |
| 269 | # <i>modules-update</i> |
271 | # <i>modules-update</i> |
| 270 | </pre> |
272 | </pre> |
| 271 | </p> |
273 | </p> |
| 272 | <note> |
274 | <note> |
| 273 | Running <c>modules-update</c> here will insert the data from <path>/etc/modules.d/alsa</path> into <path>/etc/modules.conf</path> |
275 | Running <c>modules-update</c> here will insert the data from <path>/etc/modules.d/alsa</path> into <path>/etc/modules.conf</path> |
| 274 | </note> |
276 | </note> |
| 275 | <p> |
277 | <p> |
| 276 | You should also verify that /etc/devfsd.conf has the alsa devices and permissions correctly registered. |
278 | You should also verify that /etc/devfsd.conf has the alsa devices and permissions correctly registered. |
| 277 | </p> |
279 | </p> |
| 278 | <pre caption="/etc/devfsd.conf"> |
280 | <pre caption="/etc/devfsd.conf"> |
| 279 | # ALSA/OSS stuff |
281 | # ALSA/OSS stuff |
| 280 | # Comment/change these if you want to change the permissions on |
282 | # Comment/change these if you want to change the permissions on |
| … | |
… | |
| 288 | </pre> |
290 | </pre> |
| 289 | <note> |
291 | <note> |
| 290 | Notice that devfsd.conf sets /dev/sound permissions to be root.audio. Thus, for non-root users to use audio they will have to be part of the audio group. |
292 | Notice that devfsd.conf sets /dev/sound permissions to be root.audio. Thus, for non-root users to use audio they will have to be part of the audio group. |
| 291 | </note> |
293 | </note> |
| 292 | </body> |
294 | </body> |
| 293 | </section> |
295 | </section> |
| 294 | </chapter> |
296 | </chapter> |
| 295 | <chapter> |
297 | <chapter> |
| 296 | <title>Starting ALSA</title> |
298 | <title>Starting ALSA</title> |
| 297 | <section> |
299 | <section> |
| 298 | <title>Adding alsasound to a runlevel</title> |
300 | <title>Adding alsasound to a runlevel</title> |
| 299 | <body> |
301 | <body> |
| 300 | <p> |
302 | <p> |
| 301 | First thing to do now, is to make ALSA startup at boottime. Like this: |
303 | First thing to do now, is to make ALSA startup at boottime. Like this: |
| 302 | <pre> |
304 | <pre> |
| 303 | # <c>rc-update add alsasound boot</c> |
305 | # <i>rc-update add alsasound boot</i> |
| 304 | </pre> |
306 | </pre> |
| 305 | </p> |
307 | </p> |
| 306 | <p> |
308 | <p> |
| 307 | <warn>Note that the alsasound script should be added to the "boot" runlevel, not the "default" runlevel.</warn> |
309 | <warn>Note that the alsasound script should be added to the "boot" runlevel, not the "default" runlevel.</warn> |
| 308 | </p> |
310 | </p> |
| 309 | </body> |
311 | </body> |
| 310 | </section> |
312 | </section> |
| 311 | <section> |
313 | <section> |
| 312 | <title>Running and unmuting</title> |
314 | <title>Running and unmuting</title> |
| 313 | <body> |
315 | <body> |
| 314 | <p> |
316 | <p> |
| 315 | Since we're Linux users, we don't want to reboot. So we'll start the alsasound script manually. |
317 | Since we're Linux users, we don't want to reboot. So we'll start the alsasound script manually. |
| 316 | </p> |
318 | </p> |
| 317 | <pre> |
319 | <pre> |
| 318 | # <c>/etc/init.d/alsasound start</c> |
320 | # <i>/etc/init.d/alsasound start</i> |
| 319 | </pre> |
321 | </pre> |
| 320 | <p> |
322 | <p> |
| 321 | ALSA is running now. If everything is ok, you should be able to see the ALSA modules loaded when running <c>lsmod</c>. |
323 | ALSA is running now. If everything is ok, you should be able to see the ALSA modules loaded when running <c>lsmod</c>. |
| 322 | However, sound won't work yet, because the channels are still muted. We need <c>amixer</c> for this. |
324 | However, sound won't work yet, because the channels are still muted. We need <c>amixer</c> for this. |
| 323 | </p> |
325 | </p> |
| 324 | <pre caption = "Running amixer"> |
326 | <pre caption = "Running amixer"> |
| 325 | # <i>amixer</i> |
327 | # <i>amixer</i> |
| 326 | </pre> |
328 | </pre> |
| 327 | <p> |
329 | <p> |
| 328 | <warn> |
330 | <warn> |
| 329 | You shouldn't get this, but <e>if</e> you get an error about "amixer: Mixer attach default error: No such file or directory", you should manually modprobe |
331 | You shouldn't get this, but <e>if</e> you get an error about "amixer: Mixer attach default error: No such file or directory", you should manually modprobe |
| 330 | <c>snd-mixer-oss</c> and <c>snd-pcm-oss</c> once. After that run amixer again. |
332 | <c>snd-mixer-oss</c> and <c>snd-pcm-oss</c> once. After that run amixer again. |
| 331 | </warn> |
333 | </warn> |
| 332 | </p> |
334 | </p> |
| 333 | <pre caption="only if you get an error when running amixer"> |
335 | <pre caption="only if you get an error when running amixer"> |
| … | |
… | |
| 358 | </p> |
360 | </p> |
| 359 | When you reboot your system, the <e>alsasound</e> init script will properly save and restore your volume settings. |
361 | When you reboot your system, the <e>alsasound</e> init script will properly save and restore your volume settings. |
| 360 | </body> |
362 | </body> |
| 361 | </section> |
363 | </section> |
| 362 | </chapter> |
364 | </chapter> |
| 363 | <chapter> |
365 | <chapter> |
| 364 | <title>Final Notes</title> |
366 | <title>Final Notes</title> |
| 365 | <section> |
367 | <section> |
| 366 | <title>After kernel-upgrades..</title> |
368 | <title>After kernel-upgrades..</title> |
| 367 | <body> |
369 | <body> |
| 368 | <p>When you ever rebuild your kernel, or upgrade to another kernel, you'll have to rebuild the ALSA modules.</p> |
370 | <p>When you ever rebuild your kernel, or upgrade to another kernel, you'll have to rebuild the ALSA modules.</p> |
| 369 | <p>Although you might have installed <c>alsa-driver</c>, <c>alsa-libs</c> and <c>alsa-utils</c>, only the first will |
371 | <p>Although you might have installed <c>alsa-driver</c>, <c>alsa-libs</c> and <c>alsa-utils</c>, only the first will |
| 370 | have to be installed again, since it will put the alsa modules in |
372 | have to be installed again, since it will put the alsa modules in |
| 371 | <path>/lib/modules/*/kernel/sound/pci/</path>.</p> |
373 | <path>/lib/modules/*/kernel/sound/pci/</path>.</p> |
| 372 | <pre caption="needed after each kernel compile"> |
374 | <pre caption="needed after each kernel compile"> |
| 373 | # <c>emerge alsa-driver</c> |
375 | # <i>emerge alsa-driver</i> |
| 374 | </pre> |
376 | </pre> |
| 375 | </body> |
377 | </body> |
| 376 | </section> |
378 | </section> |
| 377 | <section> |
379 | <section> |
| 378 | <title>/etc/modules.autoload</title> |
380 | <title>/etc/modules.autoload</title> |
| 379 | <body> |
381 | <body> |
| 380 | <p>You won't have to edit this file for use with ALSA. After our <c>rc-update add alsasound boot</c>, our system will |
382 | <p>You won't have to edit this file for use with ALSA. After our <c>rc-update add alsasound boot</c>, our system will |
| 381 | load the correct modules at startup.</p> |
383 | load the correct modules at startup.</p> |
| 382 | <p>It's not necessary to add <c>snd-pcm-oss</c> or <c>snd-mixer-oss</c> in this file. |
384 | <p>It's not necessary to add <c>snd-pcm-oss</c> or <c>snd-mixer-oss</c> in this file. |
| 383 | Check the <uri link="http://www.djcj.org/LAU/guide/alsbook/faq1.html">this FAQ</uri> for more info.</p> |
385 | Check the <uri link="http://www.djcj.org/LAU/guide/alsbook/faq1.html">this FAQ</uri> for more info.</p> |
| 384 | </body> |
386 | </body> |
| 385 | </section> |
387 | </section> |
| 386 | <section> |
388 | <section> |
| 387 | <title>More links..</title> |
389 | <title>More links..</title> |
| 388 | <body> |
390 | <body> |
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