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Unable to init server: Could not connect: Connection refused #85

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opened 2025-12-28 23:23:48 +01:00 by adam · 8 comments
adam commented 2025-12-28 23:23:48 +01:00
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Originally created by @ErcinDedeoglu on GitHub (Nov 11, 2020).

Hi,
my docker inside vmware and it's Ubuntu.
I tried everything, searched in issues; over internet. Tried a lots of thing but can't solve it.

root@hq-docker:/# docker run \
--device /dev/kvm \
--device /dev/snd \
-e RAM=4 \
-p 50922:10022 \
-v /tmp/.X11-unix:/tmp/.X11-unix \
-e "DISPLAY=${DISPLAY:-:0.0}" \
sickcodes/docker-osx:latest

ssh-keygen: generating new host keys: RSA DSA ECDSA ED25519
Unable to init server: Could not connect: Connection refused
QEMU 5.1.0 monitor - type 'help' for more information
(qemu) qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.0DH:EAX.xsaveopt [bit 0]
qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.0DH:EAX.xsaveopt [bit 0]
qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.0DH:EAX.xsaveopt [bit 0]
qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.0DH:EAX.xsaveopt [bit 0]
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5233:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open 'default':
alsa: Reason: No such file or directory
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5233:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open 'default':
alsa: Reason: No such file or directory
audio: Failed to create voice 'dac'
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5233:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize ADC
alsa: Failed to open 'default':
alsa: Reason: No such file or directory
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5233:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize ADC
alsa: Failed to open 'default':
alsa: Reason: No such file or directory
audio: Failed to create voice 'adc'
gtk initialization failed
root@hq-docker:/#

Originally created by @ErcinDedeoglu on GitHub (Nov 11, 2020). Hi, my docker inside vmware and it's Ubuntu. I tried everything, searched in issues; over internet. Tried a lots of thing but can't solve it. > root@hq-docker:/# docker run \ > --device /dev/kvm \ > --device /dev/snd \ > -e RAM=4 \ > -p 50922:10022 \ > -v /tmp/.X11-unix:/tmp/.X11-unix \ > -e "DISPLAY=${DISPLAY:-:0.0}" \ > sickcodes/docker-osx:latest ssh-keygen: generating new host keys: RSA DSA ECDSA ED25519 Unable to init server: Could not connect: Connection refused QEMU 5.1.0 monitor - type 'help' for more information (qemu) qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.0DH:EAX.xsaveopt [bit 0] qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.0DH:EAX.xsaveopt [bit 0] qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.0DH:EAX.xsaveopt [bit 0] qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.0DH:EAX.xsaveopt [bit 0] ALSA lib confmisc.c:767:(parse_card) cannot find card '0' ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory ALSA lib conf.c:5233:(snd_config_expand) Evaluate error: No such file or directory ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM default alsa: Could not initialize DAC alsa: Failed to open 'default': alsa: Reason: No such file or directory ALSA lib confmisc.c:767:(parse_card) cannot find card '0' ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory ALSA lib conf.c:5233:(snd_config_expand) Evaluate error: No such file or directory ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM default alsa: Could not initialize DAC alsa: Failed to open 'default': alsa: Reason: No such file or directory audio: Failed to create voice 'dac' ALSA lib confmisc.c:767:(parse_card) cannot find card '0' ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory ALSA lib conf.c:5233:(snd_config_expand) Evaluate error: No such file or directory ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM default alsa: Could not initialize ADC alsa: Failed to open 'default': alsa: Reason: No such file or directory ALSA lib confmisc.c:767:(parse_card) cannot find card '0' ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory ALSA lib conf.c:5233:(snd_config_expand) Evaluate error: No such file or directory ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM default alsa: Could not initialize ADC alsa: Failed to open 'default': alsa: Reason: No such file or directory audio: Failed to create voice 'adc' gtk initialization failed root@hq-docker:/#
adam closed this issue 2025-12-28 23:23:48 +01:00
adam commented 2025-12-28 23:23:49 +01:00
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@iambenmitchell commented on GitHub (Nov 11, 2020):

chmod 666 /dev/kvm

@iambenmitchell commented on GitHub (Nov 11, 2020): `chmod 666 /dev/kvm`
adam commented 2025-12-28 23:23:49 +01:00
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@ErcinDedeoglu commented on GitHub (Nov 11, 2020):

still same:

root@hq-docker:/# chmod 666 /dev/kvm
root@hq-docker:/# docker run     --device /dev/kvm     --device /dev/snd     -e RAM=4     -p 50922:10022     -v /tmp/.X11-unix:/tmp/.X11-unix     -e "DISPLAY=${DISPLAY:-:0.0}"     sickcodes/docker-osx:latest 
ssh-keygen: generating new host keys: RSA DSA ECDSA ED25519 
Unable to init server: Could not connect: Connection refused
QEMU 5.1.0 monitor - type 'help' for more information
(qemu) qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.0DH:EAX.xsaveopt [bit 0]
qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.0DH:EAX.xsaveopt [bit 0]
qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.0DH:EAX.xsaveopt [bit 0]
qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.0DH:EAX.xsaveopt [bit 0]
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5233:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open 'default':
alsa: Reason: No such file or directory
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5233:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open 'default':
alsa: Reason: No such file or directory
audio: Failed to create voice 'dac'
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5233:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize ADC
alsa: Failed to open 'default':
alsa: Reason: No such file or directory
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5233:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize ADC
alsa: Failed to open 'default':
alsa: Reason: No such file or directory
audio: Failed to create voice 'adc'
gtk initialization failed
root@hq-docker:/#
@ErcinDedeoglu commented on GitHub (Nov 11, 2020): still same: ``` root@hq-docker:/# chmod 666 /dev/kvm root@hq-docker:/# docker run --device /dev/kvm --device /dev/snd -e RAM=4 -p 50922:10022 -v /tmp/.X11-unix:/tmp/.X11-unix -e "DISPLAY=${DISPLAY:-:0.0}" sickcodes/docker-osx:latest ssh-keygen: generating new host keys: RSA DSA ECDSA ED25519 Unable to init server: Could not connect: Connection refused QEMU 5.1.0 monitor - type 'help' for more information (qemu) qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.0DH:EAX.xsaveopt [bit 0] qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.0DH:EAX.xsaveopt [bit 0] qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.0DH:EAX.xsaveopt [bit 0] qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.0DH:EAX.xsaveopt [bit 0] ALSA lib confmisc.c:767:(parse_card) cannot find card '0' ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory ALSA lib conf.c:5233:(snd_config_expand) Evaluate error: No such file or directory ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM default alsa: Could not initialize DAC alsa: Failed to open 'default': alsa: Reason: No such file or directory ALSA lib confmisc.c:767:(parse_card) cannot find card '0' ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory ALSA lib conf.c:5233:(snd_config_expand) Evaluate error: No such file or directory ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM default alsa: Could not initialize DAC alsa: Failed to open 'default': alsa: Reason: No such file or directory audio: Failed to create voice 'dac' ALSA lib confmisc.c:767:(parse_card) cannot find card '0' ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory ALSA lib conf.c:5233:(snd_config_expand) Evaluate error: No such file or directory ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM default alsa: Could not initialize ADC alsa: Failed to open 'default': alsa: Reason: No such file or directory ALSA lib confmisc.c:767:(parse_card) cannot find card '0' ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name ALSA lib conf.c:4745:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory ALSA lib conf.c:5233:(snd_config_expand) Evaluate error: No such file or directory ALSA lib pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM default alsa: Could not initialize ADC alsa: Failed to open 'default': alsa: Reason: No such file or directory audio: Failed to create voice 'adc' gtk initialization failed root@hq-docker:/# ```
adam commented 2025-12-28 23:23:50 +01:00
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@iambenmitchell commented on GitHub (Nov 11, 2020):

qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.0DH:EAX.xsaveopt

Does your system support virtualisation? Also are you using nested virt?

@iambenmitchell commented on GitHub (Nov 11, 2020): `qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.0DH:EAX.xsaveopt` Does your system support virtualisation? Also are you using nested virt?
adam commented 2025-12-28 23:23:50 +01:00
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@sickcodes commented on GitHub (Nov 13, 2020):

root@hq-docker:/#

Are you running this inside a Docker container? What Operating system?

@sickcodes commented on GitHub (Nov 13, 2020): `root@hq-docker:/# ` Are you running this inside a Docker container? What Operating system?
adam commented 2025-12-28 23:23:51 +01:00
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@sickcodes commented on GitHub (Nov 13, 2020):

Also don't run as root, run as a user with yourself added to the Docker group.

If its running on a server, okay, but if you're running it locally, running as root won't always work with the display server since root's display isn't the user's display env.

@sickcodes commented on GitHub (Nov 13, 2020): Also don't run as root, run as a user with yourself added to the Docker group. If its running on a server, okay, but if you're running it locally, running as root won't always work with the display server since root's display isn't the user's display env.
adam commented 2025-12-28 23:23:51 +01:00
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@fgerling commented on GitHub (Jan 4, 2021):

I had the same issue:

 Unable to init server: Could not connect: Connection refused
 [...]
 gtk initialization failed

And fixed it with xhost +.

@fgerling commented on GitHub (Jan 4, 2021): I had the same issue: ``` Unable to init server: Could not connect: Connection refused [...] gtk initialization failed ``` And fixed it with `xhost +`.
adam commented 2025-12-28 23:23:52 +01:00
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@sickcodes commented on GitHub (Jan 25, 2021):

check $DISPLAY, if you have a display too. If you don't have a display, use the VNC one, or the new :auto image with Xvfb.

@sickcodes commented on GitHub (Jan 25, 2021): check $DISPLAY, if you have a display too. If you don't have a display, use the VNC one, or the new `:auto` image with Xvfb.
adam commented 2025-12-28 23:23:52 +01:00
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@sickcodes commented on GitHub (Feb 21, 2021):

echo 1 | sudo tee /sys/module/kvm/parameters/ignore_msrs

Fixed with https://github.com/sickcodes/Docker-OSX/commit/4ac0bf163d8d20d78dd9b8df9ead5730d0c2e122

@sickcodes commented on GitHub (Feb 21, 2021): `echo 1 | sudo tee /sys/module/kvm/parameters/ignore_msrs` Fixed with https://github.com/sickcodes/Docker-OSX/commit/4ac0bf163d8d20d78dd9b8df9ead5730d0c2e122
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Reference: starred/Docker-OSX#85