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accessibility [2013/03/01 21:40] jheim |
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| - | ====== A=== Activating the Speakup Screen Reader With a Hardware Synthesizer === | + | === Accessibility === |
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| + | The accessibility features of grml include full support for the speakup screen reader, braille via brltty, and serial terminal support. | ||
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| + | === Activating the Speakup Screen Reader With a Hardware Synthesizer === | ||
| Grml includes all speakup modules. To use speakup with a hardware speech synthesizer, do the following: | Grml includes all speakup modules. To use speakup with a hardware speech synthesizer, do the following: | ||
| - | # Place the grml CD in your CD drive and boot your computer. You should hear the CD drive of your computer being accessed for a second or two. When the CD stops spinning, the grml splash screen appears and a single beep will sound. This splash screen is very bright and if you have any light perception, you should be able to see it. If the splash sscreen does not appear, the BIOS of your machine may not be configured to boot from the CD drive. You will probably need sighted assistance to fix that but see [[Changing BIOS Settings]] for possibilities. | + | # Place the grml CD in your CD drive and boot your computer. You should hear the CD drive of your computer being accessed for a second or two. When the CD stops spinning, the grml splash screen appears and a single beep will sound. This splash screen is very bright and if you have any light perception, you should be able to see it. If the splash sscreen does not appear, the BIOS of your machine may not be configured to boot from the CD drive. You will probably need sighted assistance to fix that. |
| # Wait until the computer finishes booting. This will be signalled by a four note musical tune. When the tone sounds, you must press q to exit the grml quick help menu. | # Wait until the computer finishes booting. This will be signalled by a four note musical tune. When the tone sounds, you must press q to exit the grml quick help menu. | ||
| # Load the kernel module for your synthesizer with a modprobe command. For example, to load the module for the DoubleTalk LE, you would type 'modprobe speakup_ltlk'. A list of the supported hardware speech synthesizers can be found in the [http://www.linux-speakup.org/spkguide.txt Speakup User's Guide]. | # Load the kernel module for your synthesizer with a modprobe command. For example, to load the module for the DoubleTalk LE, you would type 'modprobe speakup_ltlk'. A list of the supported hardware speech synthesizers can be found in the [http://www.linux-speakup.org/spkguide.txt Speakup User's Guide]. | ||
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| If your machine has a sound card, you can use software speech to use grml. | If your machine has a sound card, you can use software speech to use grml. | ||
| - | # Place the grml CD in your CD drive and boot your computer. You should hear the CD drive of your computer being accessed for a second or two. When the CD stops spinning, the grml splash screen appears and a single beep will sound. This splash screen is very bright and if you have any light perception, you should be able to see it. If the splash sscreen does not appear, the BIOS of your machine may not be configured to boot from the CD drive. You will probably need sighted assistance to fix that but see [[Changing BIOS Settings]] for possibilities. | + | # Place the grml CD in your CD drive and boot your computer. You should hear the CD drive of your computer being accessed for a second or two. When the CD stops spinning, the grml splash screen appears and a single beep will sound. This splash screen is very bright and if you have any light perception, you should be able to see it. If the splash sscreen does not appear, the BIOS of your machine may not be configured to boot from the CD drive. You will probably need sighted assistance to fix that. |
| # Wait until the computer finishes booting. This will be signalled by a four note musical tune. When the tone sounds, you must press q to exit the grml quick help menu. | # Wait until the computer finishes booting. This will be signalled by a four note musical tune. When the tone sounds, you must press q to exit the grml quick help menu. | ||
| # Type the following commands to load the speakup software speech module and to run espeakup | # Type the following commands to load the speakup software speech module and to run espeakup | ||
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| Grml includes support for braille displays. To use braille with grml, do the following: | Grml includes support for braille displays. To use braille with grml, do the following: | ||
| - | # Place the grml CD in your CD drive and boot your computer. You should hear the CD drive of your computer being accessed for a second or two. When the CD stops spinning, the grml splash screen appears and a single beep will sound. This splash screen is very bright and if you have any light perception, you should be able to see it. If the splash sscreen does not appear, the BIOS of your machine may not be configured to boot from the CD drive. You will probably need sighted assistance to fix that but see [[Changing BIOS Settings]] for possibilities. | + | # Place the grml CD in your CD drive and boot your computer. You should hear the CD drive of your computer being accessed for a second or two. When the CD stops spinning, the grml splash screen appears and a single beep will sound. This splash screen is very bright and if you have any light perception, you should be able to see it. If the splash sscreen does not appear, the BIOS of your machine may not be configured to boot from the CD drive. You will probably need sighted assistance to fix that. |
| # Wait until the computer finishes booting. This will be signalled by a four note musical tune. When the tone sounds, you must press q to exit the grml quick help menu. | # Wait until the computer finishes booting. This will be signalled by a four note musical tune. When the tone sounds, you must press q to exit the grml quick help menu. | ||
| # Start braille support by typing 'brltty'. To see if your braille display is supported, see the list of [http://mielke.cc/brltty/details.html#displays Supported Braille Displays]. | # Start braille support by typing 'brltty'. To see if your braille display is supported, see the list of [http://mielke.cc/brltty/details.html#displays Supported Braille Displays]. | ||
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| Even if you don't have a hardware speech synthesizer or a sound card in your machine, you can still access it with grml via ssh. | Even if you don't have a hardware speech synthesizer or a sound card in your machine, you can still access it with grml via ssh. | ||
| # Make sure your computer has an ethernet card and is connected to a network. | # Make sure your computer has an ethernet card and is connected to a network. | ||
| - | # Place the grml CD in your CD drive and boot your computer. You should hear the CD drive of your computer being accessed for a second or two. When the CD stops spinning, the grml splash screen appears and a single beep will sound. This splash screen is very bright and if you have any light perception, you should be able to see it. If the splash sscreen does not appear, the BIOS of your machine may not be configured to boot from the CD drive. You will probably need sighted assistance to fix that but see [[Changing BIOS Settings]] for possibilities. | + | # Place the grml CD in your CD drive and boot your computer. You should hear the CD drive of your computer being accessed for a second or two. When the CD stops spinning, the grml splash screen appears and a single beep will sound. This splash screen is very bright and if you have any light perception, you should be able to see it. If the splash sscreen does not appear, the BIOS of your machine may not be configured to boot from the CD drive. You will probably need sighted assistance to fix that. |
| # When the splash screen appears and a single beep will sound, press the tab key once. Then type 'ssh=password'. You may substitute another password for the password in the command. Press the enter key. | # When the splash screen appears and a single beep will sound, press the tab key once. Then type 'ssh=password'. You may substitute another password for the password in the command. Press the enter key. | ||
| # Wait until the computer finishes booting. This will be signalled by a four note musical tune. The computer will have gotten an IP address by DHCP and started an ssh server. | # Wait until the computer finishes booting. This will be signalled by a four note musical tune. The computer will have gotten an IP address by DHCP and started an ssh server. | ||
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| # Connect a null modem cable to the serial port of your target machine. Connect the other end to a working computer with a terminal emulator program. Examples of [[terminal emulator programs]] are HyperTerminal for Windows and Kermit for linux. Start the terminal emulator and make a note of the bits per second, parity, and data bits settings. | # Connect a null modem cable to the serial port of your target machine. Connect the other end to a working computer with a terminal emulator program. Examples of [[terminal emulator programs]] are HyperTerminal for Windows and Kermit for linux. Start the terminal emulator and make a note of the bits per second, parity, and data bits settings. | ||
| - | # Place the grml CD in your CD drive and boot your computer. You should hear the CD drive of your computer being accessed for a second or two. When the CD stops spinning, the grml splash screen appears and a single beep will sound. This splash screen is very bright and if you have any light perception, you should be able to see it. If the splash sscreen does not appear, the BIOS of your machine may not be configured to boot from the CD drive. You will probably need sighted assistance to fix that but see [[Changing BIOS Settings]] for possibilities. | + | # Place the grml CD in your CD drive and boot your computer. You should hear the CD drive of your computer being accessed for a second or two. When the CD stops spinning, the grml splash screen appears and a single beep will sound. This splash screen is very bright and if you have any light perception, you should be able to see it. If the splash sscreen does not appear, the BIOS of your machine may not be configured to boot from the CD drive. You will probably need sighted assistance to fix that. |
| # Press the tab key once then type a command to start a serial console. The serial port on a linux computer is called ttyS0. The second serial port, if your computer has one, would be called ttyS1. If your terminal emulator (see step 1) is set to 9600 bits per second, no parity, and 8 data bits, you would start the serial console on the first serial port by typing 'serial console=ttyS0,9600n8'. | # Press the tab key once then type a command to start a serial console. The serial port on a linux computer is called ttyS0. The second serial port, if your computer has one, would be called ttyS1. If your terminal emulator (see step 1) is set to 9600 bits per second, no parity, and 8 data bits, you would start the serial console on the first serial port by typing 'serial console=ttyS0,9600n8'. | ||
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