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Tzury Bar Yochay's questions

Martin Hope
Tzury Bar Yochay
Asked: 2011-12-08 19:48:09 +0800 CST
  • 7

Just got a new computer loaded with NVidia GForce N430, and installed a fresh new Ubuntu 11.10 amd64.

I also enabled nvidia drivers using "additional drivers" apt, and all is working fine in "normal" mode, however, I want to rotate my screens, and failed getting through.

IIRC, in previous installations, there used to be an entry for rotation within nvidia-settings UI, but not in this version.

I am using two screens, and willing to use them rotated 90 degrees clockwise (portrait vs. landscape).

I am dumping my X11/xorg.cong file and will appreciate if one can tell where to add the Option "RandRRotation" "True" line.

By the way, 

$ xrandr -o right

prints out

X Error of failed request:  BadMatch (invalid parameter attributes)
  Major opcode of failed request:  153 (RANDR)
  Minor opcode of failed request:  2 (RRSetScreenConfig)
  Serial number of failed request:  14
  Current serial number in output stream:  14

Content of /etc/X11/xorg.conf

$ cat /etc/X11/xorg.conf

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 280.13  (buildd@allspice)  Thu Aug 11 20:54:45 UTC 2011


Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
    Option         "Xinerama" "0"
EndSection

Section "Files"
EndSection

Section "InputDevice"

    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"

    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "Monitor"

    # HorizSync source: edid, VertRefresh source: edid
    Identifier     "Monitor1"
    VendorName     "Unknown"
    ModelName      "Philips 225P"
    HorizSync       30.0 - 83.0
    VertRefresh     56.0 - 76.0
    Option         "DPMS"
EndSection

Section "Monitor"

    # HorizSync source: edid, VertRefresh source: edid
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "Philips 225P"
    HorizSync       30.0 - 83.0
    VertRefresh     56.0 - 76.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device1"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce GT 430"
    BusID          "PCI:4:0:0"
    Screen          1
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce GT 430"
EndSection

Section "Screen"
    Identifier     "Screen1"
    Device         "Device1"
    Monitor        "Monitor1"
    DefaultDepth    24
    Option         "TwinView" "0"
    Option         "metamodes" "DFP-1: nvidia-auto-select +0+0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Section "Screen"

# Removed Option "TwinView" "0"
# Removed Option "metamodes" "DFP-0: nvidia-auto-select +0+0"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "TwinView" "1"
    Option         "metamodes" "DFP-0: nvidia-auto-select +1680+0, DFP-1: nvidia-auto-select +0+0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection
11.10
Martin Hope
Tzury Bar Yochay
Asked: 2011-11-04 23:57:27 +0800 CST
  • 9

Say one wishes to have a list of blocked IP addresses.

I have seen the following example script:

BLOCKDB="/path/to/ip.blocked.file"
# omit comments lines
IPS=$(grep -Ev "^#" $BLOCKDB)
for i in $IPS
do
    iptables -A INPUT -s $i -j DROP
    iptables -A OUTPUT -d $i -j DROP
done

Is several thousand lines, which transform into several thousand iptables entries, sane?

What is the top limit, beyond which, system efficiency will gets significantly affected?

iptables
Martin Hope
Tzury Bar Yochay
Asked: 2011-08-07 07:29:11 +0800 CST
  • 5

Network manager shows the message "wireless is disabled by hardware switch" while three is no switch on the laptop to disable wireless.

below is the lshw output which might help to get to the solution

  $ sudo lshw -C network
  ...
  *-network DISABLED
       description: Wireless interface
       product: Centrino Advanced-N 6200
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:0a:00.0
       logical name: wlan0
       version: 35
       serial: 58:94:6b:14:25:c8
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlagn driverversion=2.6.38-8-generic firmware=9.221.4.1 build 25532 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn
       resources: irq:41 memory:ead00000-ead01fff
11.04
Martin Hope
Tzury Bar Yochay
Asked: 2011-07-12 21:34:46 +0800 CST
  • 1

I got a simple script called hwtestinit which I installed using 

update-rc.d hwtestinit defaults

On the surface, as far as I can inspect, all seems fine , I mean, the following files, all exists, etc.

/etc/rc0.d/K20hwtestinit -> ../init.d/hwtestinit
/etc/rc1.d/K20hwtestinit -> ../init.d/hwtestinit
/etc/rc6.d/K20hwtestinit -> ../init.d/hwtestinit
/etc/rc2.d/S20hwtestinit -> ../init.d/hwtestinit
/etc/rc3.d/S20hwtestinit -> ../init.d/hwtestinit
/etc/rc4.d/S20hwtestinit -> ../init.d/hwtestinit
/etc/rc5.d/S20hwtestinit -> ../init.d/hwtestinit

When I run the script manually, all seems fine, that is, issuing the command

/etc/init.d/hwtestinit start

Yields to the desired results.However, system is not executing the on startup, and I have no idea why. I could not find any mention of it at logs files found under /var/log and wonder ins which other log file I should look at.

The script is dumped below

#! /bin/sh

case "$1" in
  start)
    smarteventd -c /etc/sctest.ini
    lcdaemon --lcdtest    
    ;;
  stop)
    smarteventd --stop
    lcdaemon --stop
    ;;
  *)
    echo "Usage: /etc/init.d/hwtestinit {start|stop}"
    exit 1
    ;;
esac

exit 0
10.04
Martin Hope
Tzury Bar Yochay
Asked: 2011-07-12 17:22:17 +0800 CST
  • 6

On a device with 2GB storage every MB is counted.

I wonder what is this /var/lib/ureadahead/debugfs doing on my system and is there a way to avoid its existence.

Note this mount point eats up 1.2 GB

# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda1             1.8G  1.2G  546M  68% /
none                  995M  224K  995M   1% /dev
none                 1000M     0 1000M   0% /dev/shm
none                 1000M  136K 1000M   1% /var/run
none                 1000M     0 1000M   0% /var/lock
none                 1000M     0 1000M   0% /lib/init/rw
none                  1.8G  1.2G  546M  68% /var/lib/ureadahead/debugfs


# cat /proc/self/mountinfo
15 19 0:0 / /sys rw,nosuid,nodev,noexec,relatime - sysfs none rw
16 19 0:3 / /proc rw,nosuid,nodev,noexec,relatime - proc none rw
17 19 0:5 / /dev rw,relatime - devtmpfs none rw,size=1018860k,nr_inodes=254715,mode=755
18 17 0:12 / /dev/pts rw,nosuid,noexec,relatime - devpts none rw,gid=5,mode=620,ptmxmode=000
19 1 8:1 / / rw,relatime - ext4 /dev/disk/by-uuid/68bf9687-2dec-49fd-a37d-5532c19f3a39 rw,errors=remount-ro,barrier=1,data=ordered
21 15 0:15 / /sys/fs/fuse/connections rw,relatime - fusectl none rw
22 15 0:7 / /sys/kernel/debug rw,relatime - debugfs none rw
23 15 0:10 / /sys/kernel/security rw,relatime - securityfs none rw
24 17 0:16 / /dev/shm rw,nosuid,nodev,relatime - tmpfs none rw
25 19 0:17 / /var/run rw,nosuid,relatime - tmpfs none rw,mode=755
26 19 0:18 / /var/lock rw,nosuid,nodev,noexec,relatime - tmpfs none rw
27 19 0:19 / /lib/init/rw rw,nosuid,relatime - tmpfs none rw,mode=755

# du -a /var | sort -n -r | head -n 10
138576  /var
87496   /var/lib
61164   /var/lib/apt
61120   /var/lib/apt/lists
34120   /var/cache
30668   /var/cache/apt
26108   /var/lib/apt/lists/us.archive.ubuntu.com_ubuntu_dists_lucid_universe_binary-amd64_Packages
18996   /var/lib/dpkg
16952   /var/lib/dpkg/info
15320   /var/cache/apt/srcpkgcache.bin
kernel
Martin Hope
Tzury Bar Yochay
Asked: 2011-05-25 20:05:01 +0800 CST
  • 2

I am trying to install ubuntu desktop on a hardware-set, which on a similar one, I have successfully installed ubuntu server with no issues.

When booting from Ubuntu Desktop CD it ends up at the ubuntu@ubuntu $ after failing to display the graphical installation interface.

The graphic card is Intel SCG GMA500 Video Controller

The display is *5" screen 800*480 LCD*

I am seeing the line Not using built-in mode "640x480" (no mode of this name) and wonder where can I define my own custom screen resolution in order to move forward. And wonder whether this is the only thing I will have to do

Below is the output of the Xorg.0.log file

[   333.311] 
X.Org X Server 1.10.1
Release Date: 2011-04-15
[   333.311] X Protocol Version 11, Revision 0
[   333.311] Build Operating System: Linux 2.6.24-29-server i686 Ubuntu
[   333.311] Current Operating System: Linux ubuntu 2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:50 UTC 2011 i686
[   333.312] Kernel command line: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
[   333.312] Build Date: 19 April 2011  03:33:17PM
[   333.312] xorg-server 2:1.10.1-1ubuntu1 (For technical support please see http://www.ubuntu.com/support) 
[   333.312] Current version of pixman: 0.20.2
[   333.312]    Before reporting problems, check http://wiki.x.org
    to make sure that you have the latest version.
[   333.312] Markers: (--) probed, (**) from config file, (==) default setting,
    (++) from command line, (!!) notice, (II) informational,
    (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[   333.313] (==) Log file: "/var/log/Xorg.0.log", Time: Wed May 25 03:48:00 2011
[   333.315] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[   333.316] (==) No Layout section.  Using the first Screen section.
[   333.316] (==) No screen section available. Using defaults.
[   333.316] (**) |-->Screen "Default Screen Section" (0)
[   333.316] (**) |   |-->Monitor "<default monitor>"
[   333.317] (==) No monitor specified for screen "Default Screen Section".
    Using a default monitor configuration.
[   333.318] (==) Automatically adding devices
[   333.318] (==) Automatically enabling devices
[   333.318] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
[   333.318]    Entry deleted from font path.
[   333.318] (WW) The directory "/usr/share/fonts/X11/100dpi/" does not exist.
[   333.318]    Entry deleted from font path.
[   333.318] (WW) The directory "/usr/share/fonts/X11/75dpi/" does not exist.
[   333.318]    Entry deleted from font path.
[   333.319] (WW) The directory "/usr/share/fonts/X11/100dpi" does not exist.
[   333.319]    Entry deleted from font path.
[   333.319] (WW) The directory "/usr/share/fonts/X11/75dpi" does not exist.
[   333.319]    Entry deleted from font path.
[   333.319] (==) FontPath set to:
    /usr/share/fonts/X11/misc,
    /usr/share/fonts/X11/Type1,
    /var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType,
    built-ins
[   333.319] (==) ModulePath set to "/usr/lib/xorg/extra-modules,/usr/lib/xorg/modules"
[   333.319] (II) The server relies on udev to provide the list of input devices.
    If no devices become available, reconfigure udev or disable AutoAddDevices.
[   333.319] (II) Loader magic: 0x81ffde0
[   333.319] (II) Module ABI versions:
[   333.319]    X.Org ANSI C Emulation: 0.4
[   333.319]    X.Org Video Driver: 10.0
[   333.319]    X.Org XInput driver : 12.3
[   333.319]    X.Org Server Extension : 5.0
[   333.322] (--) PCI:*(0:0:2:0) 8086:8108:4352:9686 rev 7, Mem @ 0xdff80000/524288, 0xd0000000/134217728, 0xdff60000/131072, I/O @ 0x0000e880/8
[   333.323] (II) Open ACPI successful (/var/run/acpid.socket)
[   333.323] (II) LoadModule: "extmod"
[   333.328] (II) Loading /usr/lib/xorg/modules/extensions/libextmod.so
[   333.329] (II) Module extmod: vendor="X.Org Foundation"
[   333.329]    compiled for 1.10.1, module version = 1.0.0
[   333.329]    Module class: X.Org Server Extension
[   333.329]    ABI class: X.Org Server Extension, version 5.0
[   333.329] (II) Loading extension MIT-SCREEN-SAVER
[   333.329] (II) Loading extension XFree86-VidModeExtension
[   333.330] (II) Loading extension XFree86-DGA
[   333.330] (II) Loading extension DPMS
[   333.330] (II) Loading extension XVideo
[   333.330] (II) Loading extension XVideo-MotionCompensation
[   333.330] (II) Loading extension X-Resource
[   333.330] (II) LoadModule: "dbe"
[   333.333] (II) Loading /usr/lib/xorg/modules/extensions/libdbe.so
[   333.333] (II) Module dbe: vendor="X.Org Foundation"
[   333.333]    compiled for 1.10.1, module version = 1.0.0
[   333.333]    Module class: X.Org Server Extension
[   333.333]    ABI class: X.Org Server Extension, version 5.0
[   333.333] (II) Loading extension DOUBLE-BUFFER
[   333.334] (II) LoadModule: "glx"
[   333.336] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[   333.337] (II) Module glx: vendor="X.Org Foundation"
[   333.337]    compiled for 1.10.1, module version = 1.0.0
[   333.337]    ABI class: X.Org Server Extension, version 5.0
[   333.338] (==) AIGLX enabled
[   333.338] (II) Loading extension GLX
[   333.338] (II) LoadModule: "record"
[   333.341] (II) Loading /usr/lib/xorg/modules/extensions/librecord.so
[   333.341] (II) Module record: vendor="X.Org Foundation"
[   333.341]    compiled for 1.10.1, module version = 1.13.0
[   333.341]    Module class: X.Org Server Extension
[   333.341]    ABI class: X.Org Server Extension, version 5.0
[   333.341] (II) Loading extension RECORD
[   333.341] (II) LoadModule: "dri"
[   333.344] (II) Loading /usr/lib/xorg/modules/extensions/libdri.so
[   333.345] (II) Module dri: vendor="X.Org Foundation"
[   333.346]    compiled for 1.10.1, module version = 1.0.0
[   333.346]    ABI class: X.Org Server Extension, version 5.0
[   333.346] (II) Loading extension XFree86-DRI
[   333.346] (II) LoadModule: "dri2"
[   333.349] (II) Loading /usr/lib/xorg/modules/extensions/libdri2.so
[   333.349] (II) Module dri2: vendor="X.Org Foundation"
[   333.349]    compiled for 1.10.1, module version = 1.2.0
[   333.349]    ABI class: X.Org Server Extension, version 5.0
[   333.350] (II) Loading extension DRI2
[   333.350] (==) Matched vesa as autoconfigured driver 0
[   333.350] (==) Matched fbdev as autoconfigured driver 1
[   333.350] (==) Assigned the driver to the xf86ConfigLayout
[   333.350] (II) LoadModule: "vesa"
[   333.352] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
[   333.353] (II) Module vesa: vendor="X.Org Foundation"
[   333.353]    compiled for 1.10.0, module version = 2.3.0
[   333.353]    Module class: X.Org Video Driver
[   333.353]    ABI class: X.Org Video Driver, version 10.0
[   333.353] (II) LoadModule: "fbdev"
[   333.355] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
[   333.355] (II) Module fbdev: vendor="X.Org Foundation"
[   333.355]    compiled for 1.10.0, module version = 0.4.2
[   333.355]    ABI class: X.Org Video Driver, version 10.0
[   333.355] (II) VESA: driver for VESA chipsets: vesa
[   333.356] (II) FBDEV: driver for framebuffer: fbdev
[   333.356] (--) using VT number 8

[   333.378] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
[   333.378] (WW) Falling back to old probe method for fbdev
[   333.378] (II) Loading sub module "fbdevhw"
[   333.378] (II) LoadModule: "fbdevhw"
[   333.384] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
[   333.384] (II) Module fbdevhw: vendor="X.Org Foundation"
[   333.384]    compiled for 1.10.1, module version = 0.0.2
[   333.384]    ABI class: X.Org Video Driver, version 10.0
[   333.385] (EE) open /dev/fb0: No such file or directory
[   333.385] (II) Loading sub module "vbe"
[   333.385] (II) LoadModule: "vbe"
[   333.388] (II) Loading /usr/lib/xorg/modules/libvbe.so
[   333.388] (II) Module vbe: vendor="X.Org Foundation"
[   333.388]    compiled for 1.10.1, module version = 1.1.0
[   333.388]    ABI class: X.Org Video Driver, version 10.0
[   333.389] (II) Loading sub module "int10"
[   333.389] (II) LoadModule: "int10"
[   333.391] (II) Loading /usr/lib/xorg/modules/libint10.so
[   333.392] (II) Module int10: vendor="X.Org Foundation"
[   333.392]    compiled for 1.10.1, module version = 1.0.0
[   333.392]    ABI class: X.Org Video Driver, version 10.0
[   333.392] (II) VESA(0): initializing int10
[   333.401] (II) VESA(0): Bad V_BIOS checksum
[   333.401] (II) VESA(0): Primary V_BIOS segment is: 0xc000
[   333.402] (II) VESA(0): VESA BIOS detected
[   333.402] (II) VESA(0): VESA VBE Version 3.0
[   333.402] (II) VESA(0): VESA VBE Total Mem: 8000 kB
[   333.402] (II) VESA(0): VESA VBE OEM: Intel(r)Poulsbo Graphics Chip Accelerated VGA BIOS
[   333.402] (II) VESA(0): VESA VBE OEM Software Rev: 1.0
[   333.402] (II) VESA(0): VESA VBE OEM Vendor: Intel Corporation
[   333.402] (II) VESA(0): VESA VBE OEM Product: Intel(r)Poulsbo Graphics Controller
[   333.402] (II) VESA(0): VESA VBE OEM Product Rev: Hardware Version 0.0
[   333.449] (II) VESA(0): Creating default Display subsection in Screen section
    "Default Screen Section" for depth/fbbpp 24/32
[   333.449] (==) VESA(0): Depth 24, (--) framebuffer bpp 32
[   333.449] (==) VESA(0): RGB weight 888
[   333.449] (==) VESA(0): Default visual is TrueColor
[   333.449] (==) VESA(0): Using gamma correction (1.0, 1.0, 1.0)
[   333.449] (II) Loading sub module "ddc"
[   333.449] (II) LoadModule: "ddc"
[   333.449] (II) Module "ddc" already built-in
[   333.520] (II) VESA(0): VESA VBE DDC supported
[   333.520] (II) VESA(0): VESA VBE DDC Level none
[   333.520] (II) VESA(0): VESA VBE DDC transfer in appr. 0 sec.
[   333.521] (II) VESA(0): VESA VBE DDC read failed
[   333.522] (II) VESA(0): VESA VBE PanelID read successfully
[   333.522] (II) VESA(0): PanelID returned panel resolution 800x480
[   333.522] (II) VESA(0): Searching for matching VESA mode(s):
[   333.523] Mode: 160 (0x0)
[   333.523]    ModeAttributes: 0x0
[   333.523]    WinAAttributes: 0x0
[   333.523]    WinBAttributes: 0x0
[   333.523]    WinGranularity: 0
[   333.523]    WinSize: 0
[   333.523]    WinASegment: 0x0
[   333.523]    WinBSegment: 0x0
[   333.523]    WinFuncPtr: 0x0
[   333.523]    BytesPerScanline: 0
[   333.523]    XResolution: 0
[   333.523]    YResolution: 0
[   333.523]    XCharSize: 0
[   333.523]    YCharSize: 0
[   333.523]    NumberOfPlanes: 0
[   333.523]    BitsPerPixel: 0
[   333.523]    NumberOfBanks: 0
[   333.523]    MemoryModel: 0
[   333.523]    BankSize: 0
[   333.523]    NumberOfImages: 0
[   333.523]    RedMaskSize: 0
[   333.523]    RedFieldPosition: 0
[   333.523]    GreenMaskSize: 0
[   333.523]    GreenFieldPosition: 0
[   333.523]    BlueMaskSize: 0
[   333.523]    BlueFieldPosition: 0
[   333.523]    RsvdMaskSize: 0
[   333.523]    RsvdFieldPosition: 0
[   333.523]    DirectColorModeInfo: 0
[   333.523]    PhysBasePtr: 0x0
[   333.523]    LinBytesPerScanLine: 0
[   333.523]    BnkNumberOfImagePages: 0
[   333.523]    LinNumberOfImagePages: 0
[   333.523]    LinRedMaskSize: 0
[   333.523]    LinRedFieldPosition: 0
[   333.523]    LinGreenMaskSize: 0
[   333.523]    LinGreenFieldPosition: 0
[   333.523]    LinBlueMaskSize: 0
[   333.524]    LinBlueFieldPosition: 0
[   333.524]    LinRsvdMaskSize: 0
[   333.524]    LinRsvdFieldPosition: 0
[   333.524]    MaxPixelClock: 0
[   333.524] Mode: 161 (0x0)
...
...
...
[   333.582] Mode: 117 (0x0)
[   333.582]    ModeAttributes: 0x0
[   333.582]    WinAAttributes: 0x0
[   333.582]    WinBAttributes: 0x0
[   333.582]    WinGranularity: 0
[   333.582]    WinSize: 0
[   333.582]    WinASegment: 0x0
[   333.582]    WinBSegment: 0x0
[   333.582]    WinFuncPtr: 0x0
[   333.582]    BytesPerScanline: 0
[   333.582]    XResolution: 0
[   333.582]    YResolution: 0
[   333.582]    XCharSize: 0
[   333.582]    YCharSize: 0
[   333.582]    NumberOfPlanes: 0
[   333.582]    BitsPerPixel: 0
[   333.582]    NumberOfBanks: 0
[   333.582]    MemoryModel: 0
[   333.582]    BankSize: 0
[   333.582]    NumberOfImages: 0
[   333.583]    RedMaskSize: 0
[   333.583]    RedFieldPosition: 0
[   333.583]    GreenMaskSize: 0
[   333.583]    GreenFieldPosition: 0
[   333.583]    BlueMaskSize: 0
[   333.583]    BlueFieldPosition: 0
[   333.583]    RsvdMaskSize: 0
[   333.583]    RsvdFieldPosition: 0
[   333.583]    DirectColorModeInfo: 0
[   333.583]    PhysBasePtr: 0x0
[   333.583]    LinBytesPerScanLine: 0
[   333.583]    BnkNumberOfImagePages: 0
[   333.583]    LinNumberOfImagePages: 0
[       333.583]    LinRedMaskSize: 0
[   333.583]    LinRedFieldPosition: 0
[   333.583]    LinGreenMaskSize: 0
[   333.583]    LinGreenFieldPosition: 0
[   333.583]    LinBlueMaskSize: 0
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[   333.589]    WinBAttributes: 0x0
[   333.589]    WinGranularity: 64
[   333.589]    WinSize: 64
[   333.589]    WinASegment: 0xa000
[   333.589]    WinBSegment: 0x0
[   333.589]    WinFuncPtr: 0xc00081fb
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[   333.590]    XResolution: 640
[   333.590]    YResolution: 480
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[   333.590]    BlueFieldPosition: 0
[   333.590]    RsvdMaskSize: 8
[   333.590]    RsvdFieldPosition: 24
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[   333.595]    MaxPixelClock: 0
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[       333.598]    WinAAttributes: 0x7
[   333.598]    WinBAttributes: 0x0
[   333.598]    WinGranularity: 64
[   333.598]    WinSize: 64
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[   333.598]    WinBSegment: 0x0
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[   333.605] 
[   333.605] (II) VESA(0): Total Memory: 125 64KB banks (8000kB)
[   333.605] (II) VESA(0): <default monitor>: Using hsync range of 31.50-29.43 kHz
[   333.605] (II) VESA(0): <default monitor>: Using vrefresh range of 56.00-58.97 Hz
[   333.605] (WW) VESA(0): Unable to estimate virtual size
[   333.605] (II) VESA(0): Not using built-in mode "640x480" (no mode of this name)
[   333.605] (WW) VESA(0): No valid modes left. Trying less strict filter...
[   333.605] (II) VESA(0): <default monitor>: Using hsync range of 31.50-29.43 kHz
[   333.605] (II) VESA(0): <default monitor>: Using vrefresh range of 56.00-58.97 Hz
[   333.605] (WW) VESA(0): Unable to estimate virtual size
[   333.605] (II) VESA(0): Not using built-in mode "640x480" (hsync out of range)
[   333.605] (WW) VESA(0): No valid modes left. Trying aggressive sync range...
[   333.605] (II) VESA(0): <default monitor>: Using hsync range of 31.50-29.43 kHz
[   333.605] (II) VESA(0): <default monitor>: Using vrefresh range of 50.00-58.97 Hz
[   333.605] (WW) VESA(0): Unable to estimate virtual size
[   333.605] (II) VESA(0): Not using built-in mode "640x480" (hsync out of range)
[   333.605] (EE) VESA(0): No valid modes
[   333.606] (II) UnloadModule: "vesa"
[   333.606] (II) Unloading vesa
[   333.606] (II) UnloadModule: "int10"
[   333.606] (II) Unloading int10
[   333.606] (II) UnloadModule: "vbe"
[   333.606] (II) Unloading vbe
[   333.606] (EE) Screen(s) found, but none have a usable configuration.
[   333.606] 
Fatal server error:
[   333.606] no screens found
[   333.606] 
Please consult the The X.Org Foundation support 
     at http://wiki.x.org
 for help. 
[   333.606] Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[   333.606] 
[   333.625]  ddxSigGiveUp: Closing log
installation
Martin Hope
Tzury Bar Yochay
Asked: 2011-05-24 20:14:24 +0800 CST
  • 3

On a network appliance I am building, based on Ubuntu server I wish to perform the following customizations:

  1. Disable the VGA output so if one connect a screen nothing will appear. This however shall not affect the ability to connect to the machine with ssh and control it
  2. If that is not possible without re-compiling the kernel (action I wish to avoid as much as possible), I at least want that when machine boot completes, it will not show the login prompt, rather my own custom message.

How can I get either one of the above options

server
Martin Hope
Tzury Bar Yochay
Asked: 2011-03-31 22:46:50 +0800 CST
  • 0

Yesterday I preformed a standard update routine using KPackageKit. Everything went smooth. However, today I found out there is no sound anymore on my machine. Since I was listening to music yesterday morning, the only one to blame is this update.

I have no idea where to start solving this.

dumping here my lspci and aplay -l here in case one will find it helpful

tzury@precision:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: XFi [Creative X-Fi], device 0: ctxfi [Front/WaveIn]
  Subdevices: 8/8
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
  Subdevice #2: subdevice #2
  Subdevice #3: subdevice #3
  Subdevice #4: subdevice #4
  Subdevice #5: subdevice #5
  Subdevice #6: subdevice #6
  Subdevice #7: subdevice #7
card 0: XFi [Creative X-Fi], device 1: ctxfi [Surround]
  Subdevices: 8/8
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
  Subdevice #2: subdevice #2
  Subdevice #3: subdevice #3
  Subdevice #4: subdevice #4
  Subdevice #5: subdevice #5
  Subdevice #6: subdevice #6
  Subdevice #7: subdevice #7
card 0: XFi [Creative X-Fi], device 2: ctxfi [Center/LFE]
  Subdevices: 8/8
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
  Subdevice #2: subdevice #2
  Subdevice #3: subdevice #3
  Subdevice #4: subdevice #4
  Subdevice #5: subdevice #5
  Subdevice #6: subdevice #6
  Subdevice #7: subdevice #7
card 0: XFi [Creative X-Fi], device 3: ctxfi [Side]
  Subdevices: 8/8
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
  Subdevice #2: subdevice #2
  Subdevice #3: subdevice #3
  Subdevice #4: subdevice #4
  Subdevice #5: subdevice #5
  Subdevice #6: subdevice #6
  Subdevice #7: subdevice #7
card 0: XFi [Creative X-Fi], device 4: ctxfi [IEC958 Non-audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
tzury@precision:~$ lspci 
00:00.0 Host bridge: Intel Corporation 5400 Chipset Memory Controller Hub (rev 20)
00:01.0 PCI bridge: Intel Corporation 5400 Chipset PCI Express Port 1 (rev 20)
00:05.0 PCI bridge: Intel Corporation 5400 Chipset PCI Express Port 5 (rev 20)
00:09.0 PCI bridge: Intel Corporation 5400 Chipset PCI Express Port 9 (rev 20)
00:10.0 Host bridge: Intel Corporation 5400 Chipset FSB Registers (rev 20)
00:10.1 Host bridge: Intel Corporation 5400 Chipset FSB Registers (rev 20)
00:10.2 Host bridge: Intel Corporation 5400 Chipset FSB Registers (rev 20)
00:10.3 Host bridge: Intel Corporation 5400 Chipset FSB Registers (rev 20)
00:10.4 Host bridge: Intel Corporation 5400 Chipset FSB Registers (rev 20)
00:11.0 Host bridge: Intel Corporation 5400 Chipset CE/SF Registers (rev 20)
00:15.0 Host bridge: Intel Corporation 5400 Chipset FBD Registers (rev 20)
00:15.1 Host bridge: Intel Corporation 5400 Chipset FBD Registers (rev 20)
00:16.0 Host bridge: Intel Corporation 5400 Chipset FBD Registers (rev 20)
00:16.1 Host bridge: Intel Corporation 5400 Chipset FBD Registers (rev 20)
00:1c.0 PCI bridge: Intel Corporation 631xESB/632xESB/3100 Chipset PCI Express Root Port 1 (rev 09)
00:1d.0 USB Controller: Intel Corporation 631xESB/632xESB/3100 Chipset UHCI USB Controller #1 (rev 09)
00:1d.1 USB Controller: Intel Corporation 631xESB/632xESB/3100 Chipset UHCI USB Controller #2 (rev 09)
00:1d.2 USB Controller: Intel Corporation 631xESB/632xESB/3100 Chipset UHCI USB Controller #3 (rev 09)
00:1d.3 USB Controller: Intel Corporation 631xESB/632xESB/3100 Chipset UHCI USB Controller #4 (rev 09)
00:1d.7 USB Controller: Intel Corporation 631xESB/632xESB/3100 Chipset EHCI USB2 Controller (rev 09)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev d9)
00:1f.0 ISA bridge: Intel Corporation 631xESB/632xESB/3100 Chipset LPC Interface Controller (rev 09)
00:1f.1 IDE interface: Intel Corporation 631xESB/632xESB IDE Controller (rev 09)
00:1f.2 SATA controller: Intel Corporation 631xESB/632xESB SATA AHCI Controller (rev 09)
00:1f.3 SMBus: Intel Corporation 631xESB/632xESB/3100 Chipset SMBus Controller (rev 09)
02:00.0 VGA compatible controller: nVidia Corporation G84 [Quadro FX 570] (rev a1)
03:00.0 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express Upstream Port (rev 01)
03:00.3 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express to PCI-X Bridge (rev 01)
04:00.0 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express Downstream Port E1 (rev 01)
04:01.0 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express Downstream Port E2 (rev 01)
06:00.0 Ethernet controller: Intel Corporation 82571EB Gigabit Ethernet Controller (rev 06)
06:00.1 Ethernet controller: Intel Corporation 82571EB Gigabit Ethernet Controller (rev 06)
08:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5754 Gigabit Ethernet PCI Express (rev 02)
09:02.0 Audio device: Creative Labs SB X-Fi
10.04
Martin Hope
Tzury Bar Yochay
Asked: 2010-12-30 03:01:53 +0800 CST
  • 3

I am looking to deploy my application on a server on which I would have no access in the future. I would like to have an indication of start-up errors generated by my program in particular and the system in general.

I have never used any of those supervision tools and wonder what added value those would bring in?

Is relying on the Debian/Ubuntu built-in init scheme not a good idea?

upstart startup services init.d runit
Martin Hope
Tzury Bar Yochay
Asked: 2010-10-18 20:28:55 +0800 CST
  • 3

I just came across this post via Hacker News and wonder what is all the fuss about? Ubuntu will always be free, right? That is a promise no one is intending to break. More than that, The Ubuntu itself, will remain licensed under same licenses it is today, right?

I would appreciate if one can tell how this shall affect our use of the great Ubuntu whatsoever.

license canonical
Martin Hope
Tzury Bar Yochay
Asked: 2010-10-18 04:50:53 +0800 CST
  • 5

Given the fact shred will not be effective on ext3, I wonder what are the available alternatives right now.

$ man shred
...

   CAUTION: Note that shred relies on a very  important  assumption:  that
   the  file system overwrites data in place.  This is the traditional way
   to do things, but many modern file system designs do not  satisfy  this
   assumption.   The following are examples of file systems on which shred
   is not effective, or is not guaranteed to be effective in all file sys‐
   tem modes:

   * log-structured or journaled file systems, such as those supplied with
   AIX and Solaris (and JFS, ReiserFS, XFS, Ext3, etc.)
...
filesystem security delete ext3