Moreover, each time I write the command 'gedit xxx.yyy', I get the following message in the Terminal:
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ALSA lib confmisc.c:769:(parse_card) cannot find card ''
ALSA lib conf.c:3510:(_snd_config_evaluate) function snd_func_card_driver returned error: No such device
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:3510:(_snd_config_evaluate) function snd_func_concat returned error: No such device
ALSA lib confmisc.c:1251:(snd_func_refer) error evaluating name
ALSA lib conf.c:3510:(_snd_config_evaluate) function snd_func_refer returned error: No such device
ALSA lib conf.c:3982:(snd_config_expand) Evaluate error: No such device
ALSA lib pcm.c:2144:(snd_pcm_open_noupdate) Unknown PCM default
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The window of Text Editor - gedit - opens right, but what is this message ? Could it mean something ?
My master volume icon has got a stop sign : a circle with a slash inside. This occurred after I installed all of the alsa-project driver, lib and utils.