serial console with grml_2011.12-rc1
I can't get a serial console with grml_2011.12-rc1. I think (can't be sure because I'm blind) I am typing this:
grml serial console=ttyS0,19200n8
If I boot my machine into linux off the hard drive, I get my serial console. So I know there is nothing wrong with my null modem cable or my terminal emulator. But with grml, I do not get a prompt of any type. From the terminal side, it looks like there's no getty on the other side.
* John Heim wrote [14.12.11 21:46]:
I can't get a serial console with grml_2011.12-rc1. I think (can't be sure because I'm blind) I am typing this:
grml serial console=ttyS0,19200n8
You are right, this is a regression/bug. I can reproduce it. It seems the problem is upstream with util-linux/getty. See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=651030 for another report.
Thanks for reporting.
Ulrich
From: "Ulrich Dangel" mru@grml.org To: grml@ml.grml.org Sent: Thursday, December 15, 2011 5:52 AM Subject: Re: [Grml] serial console with grml_2011.12-rc1
- Ulrich Dangel wrote [14.12.11 22:01]:
grml serial console=ttyS0,19200n8
I used a wrong version. Mika testet it manually and it seems to work with the rc1.
Confirmed. So I have access to boot messages in an emergency. Like if the network card wasn't working or something.
So I've checked the following and they all work:
1. Speakup after boot 2. Braille after boot 3. Ssh 4. Serial console
Like I said, I can't speak for all blind people but I am pretty happy. The beep at the isolinux boot prompt would be nice. I am not sure why sound is not working but I think its muted. I haven't been able to get sound on any of the machines I've tried this release on and that's 4 different machines.
On Thursday, 2011-12-15 at 09:17:46 -0600, John Heim wrote:
I am not sure why sound is not working but I think its muted. I haven't been able to get sound on any of the machines I've tried this release on and that's 4 different machines.
I just downloaded grml_2011.12-rc1 and booted it on my game PC.
Using alsamixer, I found that all channels Except "Master" were at 0 dB and muted. When I unmuted the stereo channels ("Front") in alsamixer and turned up the volume, I was able to hear a WAV file.
Now, alsamixer is written using the kind of ASCII graphics that will get any Braille device to quit the job, but maybe you know a program that will allow a blind person to change the settings.
BTW, unless you like hearing your dog bark (or not...), there are a few WAV files included with GRML. You find them in /usr/share/sounds/alsa .
HTH, Lupe Christoph
Hello all,
Lupe Christoph wrote:
I just downloaded grml_2011.12-rc1 and booted it on my game PC.
Using alsamixer, I found that all channels Except "Master" were at 0 dB and muted. When I unmuted the stereo channels ("Front") in alsamixer and turned up the volume, I was able to hear a WAV file.
Now, alsamixer is written using the kind of ASCII graphics that will get any Braille device to quit the job, but maybe you know a program that will allow a blind person to change the settings.
amixer is your friend. Without any commandline arguments, it will dump current settings and limits, and you can call it with arguments to set or get the volume for one single control:
~> amixer sget Master Simple mixer control 'Master',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum Playback channels: Mono Limits: Playback 0 - 31 Mono: Playback 31 [100%] [0.00dB] [on] ~> amixer sset Master 22 Simple mixer control 'Master',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum Playback channels: Mono Limits: Playback 0 - 31 Mono: Playback 22 [71%] [-13.50dB] [on]
So in this example, I set Master down from 100% to 71%.
HTH, Thomas
* Lupe Christoph wrote [16.12.11 09:06]: Hi,
I just downloaded grml_2011.12-rc1 and booted it on my game PC.
Using alsamixer, I found that all channels Except "Master" were at 0 dB and muted. When I unmuted the stereo channels ("Front") in alsamixer and turned up the volume, I was able to hear a WAV file.
Just for the record i just pushed two changes to git which should improve the situation. First one explicitly unmutes the channel and the second one will set the volume also on the Front mixer control. Maybe we have to rethink it and just unmute and set all channels instead of only setting Master, PCM, Front.
Ulrich
Le vendredi 16 décembre à 09:06, Lupe Christoph a écrit :
On Thursday, 2011-12-15 at 09:17:46 -0600, John Heim wrote:
I am not sure why sound is not working but I think its muted. I haven't been able to get sound on any of the machines I've tried this release on and that's 4 different machines.
I just downloaded grml_2011.12-rc1 and booted it on my game PC.
Using alsamixer, I found that all channels Except "Master" were at 0 dB and muted. When I unmuted the stereo channels ("Front") in alsamixer and turned up the volume, I was able to hear a WAV file.
Now, alsamixer is written using the kind of ASCII graphics that will get any Braille device to quit the job, but maybe you know a program that will allow a blind person to change the settings.
Alsamixer is accessible with a braille device.
Teilnehmer (5)
-
John Heim -
Lupe Christoph -
Philippe Delavalade -
Thomas Köhler -
Ulrich Dangel