Slackware :: Cannot Open PCM Device Alsa_pcm For Playback
Jun 12, 2011
I have installed the Jack audio connection kit from [URL] The two listed dependencies, libsndfile and libsamplerate are installed and everything seemed to go well, except it's not listed in the KDE menus. But that's Ok. I can start it from /usr/bin/jackd But no I can't because I get these error messages:
oot@ed:/# jackd -R -d alsa
jackd 0.116.2
Copyright 2001-2005 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details JACK compiled with System V SHM support. loading driver ..creating alsa driver ... hw:0|hw:0|1024|2|48000|0|0|nomon|swmeter|-|32bit control device hw:0 ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to capture-only mode cannot load driver module alsa
[code]....
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Mar 18, 2009
attempting to start Jack using the qjackctl frontend...code...
then Jack stops... how do i start Jack successfully?
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Nov 8, 2010
I am unable to get any audio to play. I configured alsa and checked to make sure nothing was muted. I think the problem might be KDE related but I'm not sure. Also when I restart the computer I get this error. "the audio playback device HDA intel (ALC887 Analog) does not work".
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Oct 21, 2010
I have been trialling Slack 13.1 on a spare 32b system for a couple of weeks, and today I took the plunge and put it on my main machine. I completely re-partitioned the drive (using the Slack disk) and installed Windows7 on one partition and Slack 13.1 on another. The install worked fine and I tested that it boots from LILO into both Windows and Slack perfectly. I then ran:
slackpkg update
slackpkg install-new
slackpkg upgrade-all
And since then it fails to boot with the following:
Code:
VFS: Cannot open root device "802" or unknown block(8,2)
Please append a correct "root=" boot option; here are the available partitions:
0840 488386584 sde driver: sd
0841 97659103 sde1
0842 19535040 sde2
0843 498015 sde3
[Code]....
I have seen many, many similar problems when searching Google but they all seem to be caused by different things.
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Mar 24, 2011
Hello,
this error spams about 100 times, then the scanner does indeed work. So I'm not completely broken, but the error messages are of concern, and it slows down the process of scanning for the time it takes to do the messages.
Error in console:
libusb couldn't open USB device /dev/bus/usb/001/001: Permission denied. libusb requires write access to USB device nodes.
my sript runs:
scanimage
--device $MODEL
--resolution=$RESOLUTION
-x 5104 -y 6840
my groups:
uid=1000(fogie) gid=100(users) groups=100(users),7(lp),11(floppy),12(mail),15(man),17(audio),18(video),19(cdrom),20(games),21(sloca te),83(plugdev),84(power),86(netdev),93(scanner)
Even a simple:
scanimage -Lv
in console gives this on a separate --current pc as well.
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Mar 22, 2011
after update to slackware current 4 days ago i cant get sound working in wine in starcraf 2 i mean i got sound in instalation but not in game and i get error when i wanna configure sound in winecfg
err:alsa:ALSA_CheckSetVolume Could not find '{PCM,Line} Playback Volume' element
err:alsa:ALSA_CheckSetVolume Could not find '{PCM,Line} Playback Volume' element
err:alsa:wine_snd_pcm_recover underrun occurred
err:alsa:wine_snd_pcm_recover underrun occurred
in game i dont got that error but sound dont work btw my sound card is asus xonar essence stx
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Aug 8, 2010
we were watching Clint Eastwood in Pink Cadillac on DVD. Earlier, I had been checking out the streaming internet radio on my roommates Mint laptop using Rhythmbox, and found it to be pretty cool. Usually, if I stream any music, it's just from the CBC (like the U.S.'s NPR), so I just stream it directly from them, but all the stations on rhythmbox (there's a whack of them) got me interested. At the start of Pink Cadillac, I proposed myself a challenge: Could I manage to get rhythmbox (a GNOME application) to work on my Slack64 -current box, before the movie ended? There's probably (maybe?) a similar app that installs and works more natively on Slack, but that's not the point; I wanted to try installing rhythmbox in < 2 hrs. Well, I got it installed finally, *just* at the end of the movie credits, but it won't play! And sometimes it segfaults. So, I wonder if anyone has any tips about what I might be missing or whatever.
Here's what I typically get when I first start it up (though it starts & runs OK):
Code:
sasha@reactor: rhythmbox
Xlib: extension "RANDR" missing on display ":0.0".
(rhythmbox:15745): GdkPixbuf-CRITICAL **: IA__gdk_pixbuf_get_width: assertion `GDK_IS_PIXBUF (pixbuf)' failed
(rhythmbox:15745): Rhythmbox-WARNING **: Unable to grab media player keys: Could not get owner of name 'org.gnome.SettingsDaemon': no such name
[code].....
Seems even on systems with some sort of 'natural' support for installing this thing, a lot of people are getting the same or very similar errors, but I haven't found a solution (obviously - I wouldn't be posting otherwise ) but people, myself included, have discovered that there doesn't seem to be a 100% accurate list of *required* dependencies for rhythmbox; it needs stuff that it doesn't tell you it needs.
EDIT: Disclaimer (just to cut the 'dependency-hell' arguments off at the pass, so to speak): This is just a fun experiment for me. I don't suggest Slackware newbies start trying to install <xyz Gnome application> into their Slackware boxes unless you want to spend HOURS fixing stuff like this, and you want to have fun doing it, and have it maybe bork your box up. And if you *do* decide to try it anyways, don't blame Slackware for giving you dependency hell. Gnome doesn't come with Slackware (here's the ChangeLog). I like Slackware exactly the way it is - it comes with more than enough apps to satisfy most people, all nicely working out of the box, so installing stuff like this is not really necessary - but I'm choosing to do this one anyway, and am not deterred by this "mess" of stuff.If this dependency stuff isn't your 'cup of tea', an 'automatically-dependency-resolving' distro might be better for you; I prefer to mess my machine up on my own, rather than let my package manager do it for me.
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Apr 18, 2010
Every time I log in, I get the following notification from Phonon: The audio playback device does not work. Falling back to RV635 Audio device [Radeon HD 3600 Series] Digital Stereo (HDMI) and of course, I get no sound.
Sound is integrated Intel HD "82801I (ICH9 Family) HD Audio Controller" (courtesy of lshw), and it did work before, it just seems to have appeared suddenly out of nowhere, I can't even tell when and whether it's connected to any updates or other configuration changes.
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Apr 13, 2010
All my music editing software programs say, "unable to open device /dev/dsp.Device or resource busy." How can I fix this?
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Jun 11, 2011
I rebooted my server and out of nowhere the RAID5 array won't assemble. I've tried everything I could think of to reassemble the thing. I fear that the array is ruined, but I can't imagine how. Here are various bits of information: The simplest failure (with and without partition numbers, which have not been needed in the past):
Code:
richard@nas:~$ sudo mdadm --assemble --verbose /dev/md0 /dev/sd[bcd]
mdadm: looking for devices for /dev/md0
mdadm: cannot open device /dev/sdb: Device or resource busy
[code]...
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Mar 21, 2010
I am not able to play certain encrypted DVD's under Lenny. Some of these DVD's worked fine in a previous installation (Mandriva 2008.1) in the same laptop (nx6125). I tried with several players (Kaffeine, vlc, mplayer), but nothing works. I know that the DVD drive is OK, since I was a able to watch an unencrypted DVD. I also have libdvdnav4, libdvdread3, libdvdcss2, w32codecs already installed.
This is the error message from Kaffeine:
07:06:12 PM: xine: cannot find input plugin for MRL [dvd:///dev/hdc]
07:06:12 PM: xine: input plugin cannot open MRL [dvd:///dev/hdc]
07:06:11 PM: xine: found input plugin : DVD Navigator
And this is from vlc
tommy@tardis:~$ vlc dvd://
VLC media player 0.8.6h Janus
libdvdnav: Using dvdnav version 4.1.2 from [URL]
libdvdnav: DVD Title: DVD_VIDEO
libdvdnav: DVD Serial Number: 2E904DAF
libdvdnav: DVD Title (Alternative):
libdvdnav: Unable to find map file '/home/tommy/.dvdnav/DVD_VIDEO.map'
libdvdread: Invalid main menu IFO (VIDEO_TS.IFO).
libdvdnav: vm: failed to read VIDEO_TS.IFO
libdvdread: Invalid IFO for VMGM (VIDEO_TS.IFO).
libdvdread: Error cracking CSS key for /VIDEO_TS/VIDEO_TS.VOB (0x00000180) .....
[00000277] dvdread demuxer error: read failed for block 0
[00000270] main playlist: nothing to play
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Mar 11, 2010
For those that use Virtualbox on their slackware host and have a windows (xp) guest running. I have tried various settings for sound (Alsa, PulseAudio), the AC97 drivers are installed in the Windows xp guest os, but there is no sound and there is an unknown audio device (in the windows device manager). If I remove the AC97 drivers and use the soundblaster16 drivers in the Vbox settings there is no unknown sound device, but there's still no sound. why I can't get sound working?
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Jul 17, 2011
I have a weird HD video in wmv and mkf files playback problem. Every HD video i attempt to play using vlc with vaapi hardware acceleration looks like this: My hardware configuration is i3 cpu, and i am using it's integrated HD2000 video card, which has DVI, HDMI and VGA outputs, which all i am using (not at the same time). However, the problem is present in every combination (DVI only. DVI+HDMI. DVI+VGA. DVI+HDMI+VGA).
As for software, I am using stock 32bit Slackware 13.37, with stock 2.37.6 kernel. And for HD video playback I have installed VLC-1.1.10. libva-0.32.0 and MPlayer-20110624 all these packages came from Alien pastures, so they are quality packages And my vlc settings are also stock :/
[Code]...
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Jun 18, 2011
Sounds like a trivial thing, but how do you do it? How do you play a plain red book audio CD? I have tried xmms, audacious and mplayer. The only success I have had (if you can call it that) is with the latter, mplayer. Using the command:
Code:
mplayer -cdrom-device /dev/sr0 cdda://3 -cache 6000
I get the warnings:
Code:
Cache not filling, consider increasing -cache and/or -cache-min!
Cache not filling, consider increasing -cache and/or -cache-min!
The program plays the audio, but there is a huge latency prior to starting the playback, making it very cumbersome to change tracks and having to wait. I have tried with various cache values as well as using the "-cache-min" argument, to no avail. What values are certain to work?
As for xmms and audacious I get the errors:
Audacious: When trying "audacious /dev/sr0"
Code:
unix-io: read failed: Input/output error.
MADPlug-Message: Rejecting file:///dev/sr0; cannot read from file.
unix-io: read failed: Input/output error.
unix-io: read failed: Input/output error.
XMMS: When trying "xmms /dev/sr0": No error
It simply does nothing except starting up and not playing. My system is a 32-bit Slackware 13.1.0 on a fast x86. I have tried with different audio CDs.
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Dec 19, 2010
first of all: I am not sure, if this is the right forum, as I don't know, if it is Slackware-relatedm, or if it is a general thing affecting other distros with KDE, as well. If the latter is the case, please let me know, where to post this (Linux Software or Linux Desktop forum?). BTW, I am on Slackware64-13.1 (stable). Currently, I am trying to copy all my music CDs on a harddisk. I thought, this would be a very simple thing to do, but whatever I do I run into another issue.
[Code]...
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Apr 2, 2011
I am trying to get DVD's to play in 13.1. I have downloaded Eric's latest VLC, installed libdvdcss, libdvdread, all the gst-plugins I could get and I with VLC the playback is unwatchable, with color mismatch, audio tearing.. all kinds of nasties. The same DVD will play in my win7 laptop as well as my blu ray player. Other players give either audio and no video or tell me that the DVD is encrypted and they can't go further.
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Apr 24, 2010
I'd like to know if there's a way to disable system suspension during mplayer playback, I'm using kde 4.4.2 by AlienBob on my slackware64-current, and powerdevil as the power manager. In powerdevil I've setup the performance profile to suspend the system after 30 minutes with no user interaction, and the presentation profile is setup not to use suspension at all, but I always forget to switch the profile before playing some long video on mplayer and the system goes down after 30 minutes of playback.
Does someone knows a way, a hidden mplayer setting (powerdevil setting would be ok too) that lets me disable suspension only when mplayer is working and nobody is using the system for more than 30 minutes??
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Apr 15, 2010
When I try to playback a sound file in aucadity just after having played one in rhythmbox or totem or vlc (or presumably any other media player), I get the following message :
"Error while opening sound device. Please check the output device settings and the project sample rate."
When I try again 2 or 3 seconds later, playback works fine. In fact if I wait 2 or 3 seconds after having stopped playback in rhythmbox or totem before starting playback in audacity, audacity doesn't give me the error message at all. Just wondering what causes this delay (as there are no delays when I go from rhythmbox to totem or vlc or anything else).
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Aug 24, 2010
I installed slackware 13.1 x86_64 bit with multilib, and its been about a month already, I'm really enjoying slackware but I am being troubled with my nvidia card, and I need to get my 3D acceleration working. And I've been looking around the net for information and kept on trying to make my nvidia card to work but to no avail. I cant get X to start, once I put in a xorg.conf stating to use the nvidia card. After troubleshooting for almost 2 weeks and now at my wits end, I now come humbly looking for help in linuxquestions slackware community forum.I've installed nvidia 64 bit kernel, drivers from slackbuilds (version 256.44). The laptop model I'm trying to get it working is an -ASUS K52J Intel Core i3 2.40Ghz with 2GB RAM and with an Nvidia Geforce 310M with 1GB dedicated VRAM.
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Oct 25, 2010
I have a redhat ES3 I want virtualized.the virtual machine encounters a problem starting when it is virtualized
There are this message :
RAMDISK : couldn't find valid RAM Disk image Starting at 0.
VFS: Cannot open root device "LABEL=/" or 00:00
please append a correct "root=" boot option
Kernel panic: VFS: Unable to mount root fs on 00:00
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Mar 18, 2010
Trying to configure perfctr-2.6.40 on CentOS 5.4 x86_64Followed the instructions given herethen thisbut when run ./examples/self/self get below errorvperfctr_open: No such devicetried to run perfex with -i option gives below errorerfex: open perfctrs: No such deviceoutput of file /dev/perfctr is below/dev/perfctr: character special (10/182)
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Feb 10, 2010
i want to open and read /dev/pts/o file as a user how can i open? using normal fopen and fread functions? is it possible to open lik dat ? it der any alternate way to open and read the device files in ubuntu
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Mar 22, 2011
I have added CentOS5.5 x86-64 to a linux box that already contains installations of Ubuntu 9 and SL 5.2. Grub2 was installed with Ubuntu and is on the MBR of the disk. I did not install grub with anaconda/Cent. Grub update in ubuntu finds the Cent install and addes it to the grub.conf, and Cent appears in the grub menu at boot. If I select Cent, I get the following error.
VFS: Cannot open root device "sda7" or unknown-block(0,0)
Please append a correct "root=" boot option
Below is the output of boot_info_script, which gives the relevant boot file data. There are still grub conf files on the SL install, but grub is not installed there anymore.
Boot Info Script 0.55 dated February 15th, 2010
=> Grub 2 is installed in the MBR of /dev/sda and looks on the same drive in partition #6 for /boot/grub .....
sda3/boot/grub/grub.conf:
# grub.conf generated by anaconda
# Note that you do not have to rerun grub after making changes to this file
# NOTICE: You do not have a /boot partition. This means that all kernel and initrd paths are relative to /, eg.
# root (hd1,2)
# kernel /boot/vmlinuz-version ro root=/dev/sdb3
# initrd /boot/initrd-version.img
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Jan 7, 2010
I just added a 2 port network card to a system that is running Fedora 11, but it is INACTIVE. I open the Network Device Control to activate it but there is no network ports in Network Device Control. It is empty.It looks like the system recognize the card and loaded correct driver.
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Jan 30, 2010
i tried following the readme file included in the driver of the usb network adapter but seems its not exact.
any ideas on how i can configure it manually? KDE does not detect any wifi device. .(of course since no driver is installed yet).
i used my desktop (win***)with DSL connection and installed the driver of the usb net adapter.. made it as the access point. . so my laptop detects the desktop as wifi spot.
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Jan 7, 2010
Still getting the "cdrecord has no permission to open the device" error when trying to burn an iso image to a DVD-RW.
I did yet another clean install of openSUSE 11.2 64 on my desktop computer, did updates, added Nvidia and Packman repos (it's not a repo problem as I tried it several times on a totally clean install), added codecs and stuff as advised by caf.
I updated the DVD drive firmware earlier today.
My user is a member of ALL groups.
Drive is an LG GH22NSS50 (sata)
It all works (with the same DVD-RW) under winxp on the same machine.
Is it HAL or something else that blocks permission to devices?
I'm really getting sick to death of this problem, and would be happy just to get rid of anything blocking permissions to the DVD drive.
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Mar 6, 2010
I have installed moto4lin, as I want to be able to get pictures off my razr v3mM, which I could easily do in Windows. I found a guide for connecting a v3m, but for some reason moto4lin is screwing around with me. Here is my log:
[info] Phone is unplugged. Please connect it
[info] Phone plugged as AT
[info] Switching device /dev/ttyACM0 to P2K mode...
[error] Unable to open device
[error] Please check preferences
[info] Switching device /dev/ttyACM0 to P2K mode .....
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Sep 13, 2010
I installed Ubuntu 9.10 a few days ago, did the updates, surfed on the net, mounted a slave drive and read everything on it, shut down, pulled the slave out and now I can't boot.
After the post screens I get: Verifying DMI pool data
Grub loading
error: the symbol 'grub-device-open' not found
grub rescue>
I think way back I had to reinstall grub or something on another machine I had but I don't remember anything about it. Is that what I have to do and how? Is it because I pulled that slave drive out that this happened? I want to get some more files off the slave as I wasn't finished.
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Jan 21, 2011
I'm trying for the first time to work with sounds and edit them. I'm trying to use Gnome Wave Cleaner and don't know what to do about the error.
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Dec 16, 2009
Got a little problem after the install of Fedora 12. First there was not problem in opening the raid-device, after i tryed to automount it with crypttab and fstab im not longer able to open it.
Here some outputs code...
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