HackToHell's questions

I have been trying to get my laptop pair with my wireless headphones, I enabled the drivers for my BCM chip as per the instructions here, https://askubuntu.com/a/632348/20245.

Now if do

~ $ hciconfig hci0: Type: BR/EDR Bus: USB
BD Address: 00:71:CC:9D:3F:8A ACL MTU: 1021:8 SCO MTU: 64:1
UP RUNNING
RX bytes:3677 acl:0 sco:0 events:203 errors:0
TX bytes:29291 acl:0 sco:0 commands:189 errors:0

I can see my device, I can scan with hcitool, however blueman-manager wasn't working, digging deeper I found that my device isn't detected in bluetoothctl.

 ~  $  bluetoothctl 
[bluetooth]# scan on
No default controller available
[bluetooth]# 

How do I make bluetoothhctl see what hcitool detects and interfaces with?

lsusb output

Bus 001 Device 002: ID 8087:8000 Intel Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 004: ID 105b:e065 Foxconn International, Inc. BCM43142A0 Bluetooth module
Bus 002 Device 003: ID 5986:055e Acer, Inc 
Bus 002 Device 002: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

rfkill shows something interesting though, it shows 2 wifi devices.

 ~  $  rfkill list
0: ideapad_wlan: Wireless LAN
        Soft blocked: no
        Hard blocked: no
1: ideapad_bluetooth: Bluetooth
        Soft blocked: no
        Hard blocked: no
2: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
3: brcmwl-0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
5: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no

dmesg gives me

[  571.720739] Bluetooth: hci0: BCM: chip id 70
[  571.736769] Bluetooth: hci0: BCM43142A
[  571.736778] Bluetooth: hci0: BCM (001.001.011) build 0000
[  572.226888] Bluetooth: hci0: BCM (001.001.011) build 0215
[  572.242883] Bluetooth: hci0: Broadcom Bluetooth Device (43142)

This happens on Ubuntu 16.04 with i3wm, the processor is a Haswell (i54210u) with a HD 4400, using Intel drivers.

None of the tweak tools work with i3wm, how do I solve this issue.

Related to this, How do I fix fonts not rendering and missing letters?. Except with different hardware.

I have a dedicated GPU, but it's switched off via the nvidia-settings app.

lshw -c video gives me

  *-display               
   description: VGA compatible controller
   product: Haswell-ULT Integrated Graphics Controller
   vendor: Intel Corporation
   physical id: 2
   bus info: pci@0000:00:02.0
   version: 0b
   width: 64 bits
   clock: 33MHz
   capabilities: msi pm vga_controller bus_master cap_list rom                                                                                                                                                                                 
   configuration: driver=i915 latency=0                                                                                                                                                                                                        
   resources: irq:46 memory:c3000000-c33fffff memory:d0000000-dfffffff ioport:5000(size=64) `                                                                                                                                                   


 *-display                                                                                                                                                                                                                                        
       description: 3D controller                                                                                                                                                                                                                  
       product: GF117M [GeForce 610M/710M/810M/820M / GT 620M/625M/630M/720M]                                                                                                                                                                      
       vendor: NVIDIA Corporation                                                                                                                                                                                                                  
       physical id: 0                                                                                                                                                                                                                              
       bus info: pci@0000:03:00.0                                                                                                                                                                                                                  
       version: a1                                                                                                                                                                                                                                 
       width: 64 bits                                                                                                                                                                                                                              
       clock: 33MHz                                                                                                                                                                                                                                
       capabilities: pm msi pciexpress cap_list                                                                                                                                                                                                    
       configuration: driver=nvidia latency=0                                                                                                                                                                                                      
       resources: irq:16 memory:c2000000-c2ffffff memory:b0000000-bfffffff memory:c0000000-c1ffffff ioport:3000(size=128) 

Trying to use nouveau driver isntead of the nvidia driver cause of poor performance, but I am unable to launch steam to use the dedicated card.

Launching as env DRI_PRIME=1 steam steam://rungameid/440

getting

Running Steam on ubuntu 16.04 64-bit
STEAM_RUNTIME is enabled automatically
grep: symbol lookup error: grep: undefined symbol: pcre_jit_stack_alloc
grep: symbol lookup error: grep: undefined symbol: pcre_jit_stack_alloc
grep: symbol lookup error: grep: undefined symbol: pcre_jit_stack_alloc
Installing breakpad exception handler for appid(steam)/version(1465948400)
libGL error: unable to load driver: nouveau_dri.so
libGL error: driver pointer missing
libGL error: failed to load driver: nouveau
libGL error: unable to load driver: swrast_dri.so
libGL error: failed to load driver: swrast

Launching tf2 seperately also fails,. DRI_PRIME=1 ~/.steam/steam/steamapps/common/Team\ Fortress\ 2/hl2.sh gives me,

SDL video target is 'x11'
SDL video target is 'x11'
This system supports the OpenGL extension GL_EXT_framebuffer_object.
This system supports the OpenGL extension GL_EXT_framebuffer_blit.
This system supports the OpenGL extension GL_EXT_framebuffer_multisample.
This system DOES NOT support the OpenGL extension GL_APPLE_fence.
This system DOES NOT support the OpenGL extension GL_NV_fence.
This system supports the OpenGL extension GL_ARB_sync.
This system supports the OpenGL extension GL_EXT_draw_buffers2.
This system DOES NOT support the OpenGL extension GL_EXT_bindable_uniform.
This system DOES NOT support the OpenGL extension GL_APPLE_flush_buffer_range.
This system supports the OpenGL extension GL_ARB_map_buffer_range.
This system supports the OpenGL extension GL_ARB_vertex_buffer_object.
This system supports the OpenGL extension GL_ARB_occlusion_query.
This system DOES NOT support the OpenGL extension GL_APPLE_texture_range.
This system DOES NOT support the OpenGL extension GL_APPLE_client_storage.
This system DOES NOT support the OpenGL extension GL_ARB_uniform_buffer.
This system supports the OpenGL extension GL_ARB_vertex_array_bgra.
This system supports the OpenGL extension GL_EXT_vertex_array_bgra.
This system supports the OpenGL extension GL_ARB_framebuffer_object.
This system DOES NOT support the OpenGL extension GL_GREMEDY_string_marker.
This system supports the OpenGL extension GL_ARB_debug_output.
This system DOES NOT support the OpenGL extension GL_EXT_direct_state_access.
This system DOES NOT support the OpenGL extension GL_NV_bindless_texture.
This system DOES NOT support the OpenGL extension GL_AMD_pinned_memory.
This system supports the OpenGL extension GL_EXT_framebuffer_multisample_blit_scaled.
This system supports the OpenGL extension GL_EXT_texture_sRGB_decode.
This system DOES NOT support the OpenGL extension GL_NVX_gpu_memory_info.
This system DOES NOT support the OpenGL extension GL_ATI_meminfo.
This system supports the OpenGL extension GL_EXT_texture_compression_s3tc.
This system supports the OpenGL extension GL_EXT_texture_compression_dxt1.
This system supports the OpenGL extension GL_ANGLE_texture_compression_dxt3.
This system supports the OpenGL extension GL_ANGLE_texture_compression_dxt5.
This system supports the OpenGL extension GL_ARB_buffer_storage.
This system DOES NOT support the OpenGL extension GLX_EXT_swap_control_tear.
OpenGL: Gallium 0.4 on NVD7 3.0 Mesa 11.2.0 (3.0.0)
GL_NV_bindless_texture: DISABLED
GL_AMD_pinned_memory: DISABLED
GL_ARB_buffer_storage: AVAILABLE
GL_EXT_texture_sRGB_decode: AVAILABLE
AppFramework : Unable to load module vguimatsurface.so!
Unable to load interface VGUI_Surface030 from vguimatsurface.so

glxgears works. What do I do ?

In Firefox on Windows, I can cycle through tabs using the Ctrl+1–9 etc. However Ubuntu (with Cinnamon) seems to not allow this binding. How can I restore it?

I am trying to extract an tarball, I keep getting this error

tar: mediatek/custom/common/lk/lcm/bp101wx1_n/bp101wx1_n.c: Cannot open: Not a directory
tar: mediatek/custom/common/lk/lcm/hsd070idw1/hsd070idw1.c: Cannot open: Not a directory
tar: mediatek/custom/common/lk/lcm/nt35582/nt35582.c: Cannot open: Not a directory
tar: mediatek/custom/common/lk/lcm/r63311_fhd_dsi_vdo_sharp/r63311_fhd_dsi_vdo_sharp.c: Cannot open: Not a directory
tar: mediatek/custom/common/lk/lcm/otm9608_wvga_dsi_cmd/otm9608_wvga_dsi_cmd.c: Cannot open: Not a directory
tar: mediatek/custom/common/lk/lcm/lg4571/lg4571.c: Cannot open: Not a directory
tar: mediatek/custom/common/lk/lcm/hx8363b_wvga_dsi_cmd/hx8363b_wvga_dsi_cmd.c: Cannot open: Not a directory
tar: mediatek/custom/common/lk/lcm/lg4573b_wvga_dsi_vdo_lh430mv1/lg4573b_wvga_dsi_vdo_lh430mv1.c: Cannot open: Not a directory
tar: Exiting with failure status due to previous errors

The original file was a .zip file that contained a .tar.gz file, so I first used unzip then I used pigz with the -d option to create the tar file.

I extracted the tar file using tar with xf option.

Extracting the tar.gz using the tar xzf also doesn't work :/

Using 7za I get

can not open output file mediatek/custom/common/lk/lcm/bm8578/bm8578.c
can not open output file mediatek/custom/common/lk/lcm/nt35565_qhd_dsi_cmd/nt35565_qhd_dsi_cmd.c
can not open output file mediatek/custom/common/lk/lcm/spfd5461a/spfd5461a.c
can not open output file mediatek/custom/common/lk/lcm/bp101wx1_n/bp101wx1_n.c
can not open output file mediatek/custom/common/lk/lcm/hsd070idw1/hsd070idw1.c
can not open output file mediatek/custom/common/lk/lcm/nt35582/nt35582.c
can not open output file mediatek/custom/common/lk/lcm/r63311_fhd_dsi_vdo_sharp/r63311_fhd_dsi_vdo_sharp.c
can not open output file mediatek/custom/common/lk/lcm/otm9608_wvga_dsi_cmd/otm9608_wvga_dsi_cmd.c
can not open output file mediatek/custom/common/lk/lcm/lg4571/lg4571.c
can not open output file mediatek/custom/common/lk/lcm/hx8363b_wvga_dsi_cmd/hx8363b_wvga_dsi_cmd.c
can not open output file mediatek/custom/common/lk/lcm/lg4573b_wvga_dsi_vdo_lh430mv1/lg4573b_wvga_dsi_vdo_lh430mv1.c

Sub items Errors: 3869

The tar file is 3.8 GB if that matters

I have this strange problem, I am unable to access imgur.com from Ubuntu !

I have checked the /etc/hosts file, there seems to no entry related to imgur. I can access it from Windows(same connection).

I cannot ping it or traceroute it, I cannot even ping the IP of imgur. I have cleared iptables too, what could be the cause ?

i cannot access gravatar.com too !! I just noticed that sorry.

Running host imgur.com (the same output with google's dns servers)

gowtham@gowtham-hacktohell:~$ host imgur.com
imgur.com has address 23.23.110.58
imgur.com has address 23.23.110.81
imgur.com has address 54.243.128.92
imgur.com mail is handled by 5 alt1.aspmx.l.google.com.
imgur.com mail is handled by 1 aspmx.l.google.com.
imgur.com mail is handled by 10 aspmx2.googlemail.com.
imgur.com mail is handled by 5 alt2.aspmx.l.google.com.
imgur.com mail is handled by 10 aspmx3.googlemail.com.

Running tcptraceroute

gowtham@gowtham-hacktohell:~$ tcptraceroute imgur.com
Selected device ppp0, address 117.199.141.54, port 44995 for outgoing packets
Tracing the path to imgur.com (54.243.128.92) on TCP port 80 (http), 30 hops max
 1  117.199.128.1  17.534 ms  17.764 ms  17.896 ms
 2  218.248.171.102  93.272 ms  26.393 ms  109.985 ms
 3  115.114.130.49.STATIC-Chennai.vsnl.net.in (115.114.130.49)  49.442 ms  47.180 ms  46.981 ms
 4  * * *
 5  ix-0-100.tcore2.MLV-Mumbai.as6453.net (180.87.39.25)  70.085 ms  69.712 ms  70.361 ms
 6  if-2-2.tcore1.MLV-Mumbai.as6453.net (180.87.38.1)  186.862 ms  186.434 ms  185.515 ms
 7  if-9-5.tcore1.WYN-Marseille.as6453.net (80.231.217.17)  181.965 ms  182.963 ms  184.682 ms
 8  if-8-1600.tcore1.PYE-Paris.as6453.net (80.231.217.6)  186.152 ms  184.483 ms  182.950 ms
 9  if-12-2.tcore1.PVU-Paris.as6453.net (80.231.154.70)  191.271 ms  189.655 ms  188.606 ms
10  if-3-2.tcore1.FR0-Frankfurt.as6453.net (80.231.153.54)  187.245 ms  186.013 ms  193.808 ms
11  xe-0-1-0-6.r02.frnkge03.de.bb.gin.ntt.net (129.250.9.57)  288.412 ms  281.124 ms  281.011 ms
12  ae-2.r20.frnkge04.de.bb.gin.ntt.net (129.250.5.217)  352.432 ms  357.071 ms  357.256 ms
13  ae-1.r21.asbnva02.us.bb.gin.ntt.net (129.250.3.20)  391.405 ms  394.961 ms  391.812 ms
14  ae-2.r00.asbnva02.us.bb.gin.ntt.net (129.250.3.114)  378.128 ms  381.786 ms  385.697 ms
15  ae-4.amazon.asbnva02.us.bb.gin.ntt.net (168.143.232.50)  370.938 ms  353.306 ms  351.793 ms
16  72.21.220.55  361.004 ms * 364.525 ms
17  205.251.245.55  368.187 ms  380.907 ms  375.333 ms
18  * * *
19  * * *
20  * * *

I dial the connection using PPoE.

Capturing the stream through Wireshark, I see this

_{(source: akamaihd.net)}

Running curl

gowtham@gowtham-hacktohell:~$ curl -I http://imgur.com
HTTP/1.1 200 OK
Server: nginx
Date: Fri, 11 Jan 2013 12:24:01 GMT
Content-Type: text/html
Connection: keep-alive
Cache-Control: max-age=5, s-maxage=5, must-revalidate
X-Cached: EXPIRED

And telnetting,

gowtham@gowtham-hacktohell:~$ telnet imgur.com 80
Trying 23.23.110.58...
Connected to imgur.com.
Escape character is '^]'.
HEAD / HTTP/1.0


HTTP/1.1 200 OK
Server: nginx
Date: Fri, 11 Jan 2013 12:25:11 GMT
Content-Type: text/html
Connection: close
Cache-Control: max-age=5, s-maxage=5, must-revalidate
X-Cached: HIT

Connection closed by foreign host.

If I try to start OpenVPN, I get this error:

/etc/init.d/openvpn start
* Starting virtual private network daemon(s)...
* Autostarting VPN 'server'
* Already running (PID file exists)

But OpenVPN is not running, what should I do?

How can I extract the deb files of ubuntu 12.10 from the official iso, I am trying to cut the download time, only some packages are in /pool/main

The rest seem to be in a virtual fs in /casper/.

How can I extract the deb files?

Canonical dropped support to the alternate ISO's and they are not listed in the downloads page, how can I do a CD ROM upgrade now ?

I have no idea why this happens, how do i fix it ?

I am setting up a new user let his name be ftpguy. He has access to only one directory /var/www/xxx. I have already chowned the directory so that he has write and read privileges. The user is also unable to login via ssh as I have disabled that by changing his shell to /sbin/nologin.

Also, in vsftpd config, I have enabled the chroot_local_user. Now whenever I log in from ftp, i get an auth error.

Connect socket #1008 to xxxxxxxx, port 21...   
220 Welcome to blah FTP service.  
USER ftpguy  
331 Please specify the password.  
PASS **********  
530 Login incorrect.

I changed the password to something different several times, using the passwd command, nothing happens, i still the above error.

However I am able to log in with my ssh creditals to my ftp server without any problems.(I do not use a key).

So I did a dumb thing, I chowned /var to a single user and now I am getting errors everywhere,I had to add permissions so that mysql and lighthttpd would start, any easy way to revert changes or must I manually revert changes ?

I am getting errors like fopen: Permission denied when i run apt-get .

The above error can be fixed by running sudo chown -R man:root /var/cache/man

I followed the instructions to set up OpenVPN, from here, now I am getting this error

$ sudo /etc/init.d/openvpn restart
Stopping virtual private network daemon(s)...
No VPN is  running.  * Starting virtual private network daemon(s)...
Autostarting VPN 'server'
/etc/openvpn/up.sh: 7: /sbin/brctl: not found

I am getting this message every time I do something like starting or stopping a service.

perl: warning: Setting locale failed.   
perl: warning: Please check that your locale settings:   
        LANGUAGE = "en_US:en",   
        LC_ALL = (unset),   
        LC_MESSAGES = "en_US.UTF-8",   
        LANG = "en_US.UTF-8"   
    are supported and installed on your system.   
perl: warning: Falling back to the standard locale ("C").   
locale: Cannot set LC_CTYPE to default locale: No such file or directory   
locale: Cannot set LC_MESSAGES to default locale: No such file or directory   
locale: Cannot set LC_ALL to default locale: No such file or directory   
(Reading database ... 21173 files and directories currently installed.)  
Removing bind9 ...  
 * Stopping domain name service... bind9                                        [ OK ]
Processing triggers for man-db ...   
locale: Cannot set LC_CTYPE to default locale: No such file or directory   
locale: Cannot set LC_MESSAGES to default locale: No such file or directory   
locale: Cannot set LC_ALL to default locale: No such file or directory   

How do I fix this error ?

I want any alternative for Ubuntu 11.04 that runs on the command window that allows me to see which folder use up a lot of space.

P.S. It's for my VPS.

I want to know why the named daemon is running, do I need it running for my VPS to work properly ?

Can I stop or remove it ?

Let's say i have Chromium and Dolphin open up when I shut down, then both are reopen upon reboot.How do I prevent this ?

DWM : KDE 4

Linux flavour : Ubuntu

My ISP doing some repairs on my broadband cable so my internet connection is dropping frequently, when my internet connection drops, Network Manager, shows that there are no interfaces. I have to restart network-manager using start and stop connections to get it working again.

Using Ubuntu with KDE 4

I mainly use windows and use Linux/Kubuntu occasionally, and would love it if the same Windows shortcuts can be applied in KDE 4.

Shortcuts that I would love to have.

1. Winkey - Launches the start menu.
2. Ctrl+Shift+Esc - Brings up taskmanager
3. Winkey+d - Issues the minimize all comand
4. Winkey+e - Open up Naultius

Can anyone suggest and method to bind the keys into doing the correct stuff?

Edit #1:

5.Also Winkey+L - To lock the computer