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Thread: Linux Won't Recognize Realtek WLan (2)

  1. #21
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    Re: Linux Won't Recognize Realtek WLan (2)

    I conclude that one is correctly installed, is accessible, is in working order, and can be relied on: no matter what Linux may, or may not, report.
    I imagine it is installed; it is sticking right out of the USB port, isn't it? The fact that Windows and Ubuntu describe them a bit differently is of no concern. I am quite confident that both operating systems are seeing the exact same device, the Nano.
    Somehow, I have no idea how, the system allocates a priority and a suitable device name to every physical - or virtual – device it encounters, and can identify as of a particular class; also gives it a number, presumably, in the order it was recognised.
    That is correct, if there is a driver installed; either because it's native in the kernel or because one was added after installation. If there is no driver, it has no mechanism to know what exactly to do with a device. It will probably be able to read the device description from the chip in the device.
    So I am suggesting that logically, the fact that wlan0 is not found, or at least not reported; does not say anything about the presence of a card;
    Correct; the device may be there but without a driver as I stated above.
    whereas, if wlan0 is found and reported as in use, there is, obviously, a definite certainty that an adapter card, or some equivalent, is present.
    Correct.
    Equally, the presence of wlan0 and the absence of a network, can not be taken a evidence that a card is not present.
    Correct.
    Or to borrow your own metaphor: If you did not see today, the sexy waitress you saw, but did not kiss, the other day, that would not mean she was not there!
    Correct; she was there, not just connected.
    Part of the confusion comes from both cards being ( in places ) named the same as: " Type: 802.11(xx)WiFi", but named differently, elsewhere. eg Network Manager names the Nano, in full, as:
    That's not confusing at all; a great many devices are called 802.11 wifi; USB, PCI, PCMCIA, etc.
    Your lspci and lshw only show an internal ethernet device, not wireless.
    Yes!, and No!. With the Nano, lspci shows the RTL8111/8168B PCI Ethernet controller, but lists nothing that relates to a Network Adapter wireless. ie. It is the same as in Post8.
    ”Currently, 06/11 22Hrs Gmt. With the Nano plugged in, but, the Mouse the only other Usb device installed, lshw shows, as the last item in the list, following disks 0 to 2, a *-network item like this:
    Quote:
    *-network
    description: Wireless interface
    physical id: 1 logical name: wlan0
    serial: 00:02:72:9c:18:b8
    capabilities: ethernet physical wireless
    configuration: broadcast=yes multicast=yes wireless=802.11b/g/n ...
    Correct! As I stated, you have an internal ethernet device and the Nano. There is no other internal device as you implied here in post #17:
    It appears that the presence of a USB dongle, actually makes the system able to get further with the installed card, and two of them is even better, as it then displays the names of the devices for each of the networks as well as the name of the latter.
    My question for you, again, it, what installed card? What installed card facilitates the Nano?
    5.
    Currently, lsmod | grep 819 gives:
    r8192s_usb 287404 0
    eeprom_93cx6 1345 1 r8192s_usb
    Now we're getting somewhere! Although I am quite confident you do not have a firmware problem, because you see networks and can, at least, intermittently connect, let's see if the firmware is in place; please run and post:
    Code:
    ls /lib/firmware/RTL8192SU
    What I am saying, is that the WiFi drop-down display,( which is absent without a USB dongle), with one Usb dongle, just shows a single line with the SSID, without any device name or device state.
    Perfectly normal. It's telling you that these are the networks I see that are available; click on me and if you have any required passwords; I'll connect. If you have so indicated in Network Manager, it will connect automatically.
    Here you are back to the “ Aint working means it aint there” argument .
    No, sir; I am at the "we have searched every place we can search, every way we can search, and we only find the Nano" argument. I am trying to get you past this mis-conception, expressed in post #17:
    It appears that the presence of a USB dongle, actually makes the system able to get further with the installed card, and two of them is even better,
    Even your readings from Windows completely support the finding that there is only the Nano wireless device.

    Let's see why Network Manager connects and then drops. Please post:
    Code:
    cat /etc/resolv.conf
    sudo cat /var/log/syslog | grep etwork | tail -n20
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, B.Sc., M.Sc., M.A., Ph.D., Sc.D.

  2. #22
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    Re: Linux Won't Recognize Realtek WLan (2)

    H1, Chil555,
    Thanks for your very clear and full response.

    Thank Peter! we are at last in agreement about some -to me- important issues.

    Unfortunately, about the most important one, we are 100% in opposition.

    Hence, this quick response, about just this one point; I will return as soon as possible, to cover your other points.
    { In the following, I have identified my posts with : " B >>" & the post No. if needed. Similarly, Yours I have marked with : " C >>".}
    I Posted:
    B >> P20
    Win 7 says that there is a “RealtekRTL8191SU Wireless LAN 802.11n USB 2.0 Network Adapter” installed on this Medion MD 8341 computer, finds it, connects and operates without any problems in Windows.
    “RealtekRTL8191SU Wireless LAN 802.11n USB 2.0 Network Adapter”
    is a direct quote from Win7 Device Manager without Nano, with the Mouse the only external USB device. ie 1t is connected to a USB port on the mother board.
    When the Nano is plugged in, Win7 Device Manager lists both.
    To ensure I had not made a mistake, I have just booted into Win7. The CYBERGRANS network connection is shown as 100%, Firefox runs and I have downloaded a Windows up-date.
    B >>
    I conclude that one is correctly installed, is accessible, is in working order, and can be relied on: no matter what Linux may, or may not, report.
    C >> P21
    I imagine it is installed; it is sticking right out of the USB port, isn't it?
    No, No, and no! It is plugged into my other PC, my Vista m/c, upstairs in my apartment; it is running, connecting to BT-OpenZone -- There is no WiFi access to CYBERGRANS up there.
    C >>
    ..... both operating systems are seeing the exact same device, the Nano.....
    Correct, when it is plugged in.
    C >>
    The fact that Windows and Ubuntu describe them a bit differently is of no concern.
    I still (sometimes) have some doubts about which device is being referred to, by Ubuntu, in any specific instance. Hence my suggestion to force a deactivation of any internal device, to eliminate the possibility they are mutually incompatible, or interfering with each other.
    What does concern me, is that Ubuntu apparently cannot recognize a card plugged into a PCI port that Win7 has no difficulty with.
    C >>
    I am quite confident that both operating systems are seeing the exact same device, the Nano.
    I too think they do, but I wish I were equally assured that they do, all the time.

    I think this issue has been the source of most of our seeming to be at cross purposes; and until it is resolved I doubt any other things we do, will bear fruit.

    Close your eyes before your read this bit! :
    Upstairs, Ubuntu does not list a WLAN Adapter either, whether Nano in in or out, and even though both Nano as Wlan2, and the internal card as Wlan0, connected to BT-OpenZone. [ I include this info, not to annoy or confuse you, but as an important item eliminating doubt about where the fault might lie. ]
    Chao! bogan.
    Last edited by bogan; November 7th, 2011 at 10:31 PM. Reason: Upstairs note modded.
    "Better Solutions may bring Worsened Problems": After Lao Tse, b. circa 405BC. a contemporary of Confucius, who died circa 600BC.
    They did things differently in those days, apparently!!

  3. #23
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    Re: Linux Won't Recognize Realtek WLan (2)

    On the computer in question, with the Nano detached and safely in your shirt pocket, please run and post:
    Code:
    lspci -nn
    sudo lshw -C network
    lsusb
    We shall see what we shall see!
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, B.Sc., M.Sc., M.A., Ph.D., Sc.D.

  4. #24
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    Re: Linux Won't Recognize Realtek WLan (2)

    Hi!, Chili555, we progress!

    First a question from ignorance:

    As both the Nano, as an external dongle, and the internal RTL8191SU, are USB controllers, ( the latter, for all I know, may be connected to a USB port on the Motherboard, or even be incorporated in it ) they do not, or may not, occupy any PCI slots. So should either, or both, be expected to show on a list of PCI items, such as lspci ?? ( I do not have a clue about what function lshw serves. )

    Now your code requests: [ I assume that by:
    ...the computer in question,
    in P21, you meant the one which is the agreed focus of our main task. ]
    Code:
     08/11/1. 00.45 Hrs. Win7 m/c, No USB Dongle, after cold finger re-boot.
     Ubuntu 10.10 updated to: 2.6.35-30-3-generic.
     ([ A Medion MD8431 m/c in which Win Device Manager  (without Nano or GetNet ) 
    recognizes a Realtek RTL8191SU USB Wireless Adapter. ]
    
    root@alan-MS-7616:~# lspci -nn
    00:00.0 Host bridge [0600]: Intel Corporation Core Processor DRAM Controller [8086:0040] (rev 12)
    00:01.0 PCI bridge [0604]: Intel Corporation Core Processor PCI Express x16 Root Port [8086:0041] (rev 12)
    00:1a.0 USB Controller [0c03]: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller [8086:3b3c] (rev 05)
    00:1b.0 Audio device [0403]: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio [8086:3b56] (rev 05)
    00:1c.0 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 [8086:3b42] (rev 05)
    00:1c.2 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 3 [8086:3b46] (rev 05)
    00:1d.0 USB Controller [0c03]: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller [8086:3b34] (rev 05)
    00:1e.0 PCI bridge [0604]: Intel Corporation 82801 PCI Bridge [8086:244e] (rev a5)
    00:1f.0 ISA bridge [0601]: Intel Corporation 5 Series Chipset LPC Interface Controller [8086:3b02] (rev 05)
    00:1f.2 SATA controller [0106]: Intel Corporation 5 Series/3400 Series Chipset 6 port SATA AHCI Controller [8086:3b22] (rev 05)
    00:1f.3 SMBus [0c05]: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller [8086:3b30] (rev 05)
    01:00.0 VGA compatible controller [0300]: nVidia Corporation GT218 [GeForce G210] [10de:0a60] (rev a2)
    01:00.1 Audio device [0403]: nVidia Corporation High Definition Audio Controller [10de:0be3] (rev a1)
    02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 03)
    03:00.0 FireWire (IEEE 1394) [0c00]: VIA Technologies, Inc. VT6315 Series Firewire Controller [1106:3403]
    root@alan-MS-7616:~#
    Code:
    root@alan-MS-7616:~# lshw -C network
      *-network               
           description: Ethernet interface
           product: RTL8111/8168B PCI Express Gigabit Ethernet controller
           vendor: Realtek Semiconductor Co., Ltd.
           physical id: 0
           bus info: pci@0000:02:00.0
           logical name: eth0
           version: 03
           serial: 40:61:86:60:6a:48
           size: 10MB/s
           capacity: 1GB/s
           width: 64 bits
           clock: 33MHz
           capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
           configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half latency=0 link=no multicast=yes port=MII speed=10MB/s
           resources: irq:43 ioport:d800(size=256) memory:f8fff000-f8ffffff memory:f8ff8000-f8ffbfff memory:fbee0000-fbefffff
    root@alan-MS-7616:~#
    Code:
    root@alan-MS-7616:~# lsusb
    Bus 002 Device 006: ID 13d3:3306 IMC Networks 
    Bus 002 Device 005: ID 0424:2228 Standard Microsystems Corp. 9-in-2 Card Reader
    Bus 002 Device 004: ID 0461:4d0f Primax Electronics, Ltd ( ?Mouse Controller?  )
    Bus 002 Device 003: ID 0424:2602 Standard Microsystems Corp. USB 2.0 Hub
    Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
    Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    root@alan-MS-7616:~#
    I am also including:

    Code:
    root@alan-MS-7616:~# lsmod | grep -e rt2 -e r8 -e rtl
    r8169                  36553  0 
    mii                     4425  1 r8169
    root@alan-MS-7616:~#
    That Waitress is still waiting.!!

    Chao! bogan.
    "Better Solutions may bring Worsened Problems": After Lao Tse, b. circa 405BC. a contemporary of Confucius, who died circa 600BC.
    They did things differently in those days, apparently!!

  5. #25
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    Re: Linux Won't Recognize Realtek WLan (2)

    they do not, or may not, occupy any PCI slots. So should either, or both, be expected to show on a list of PCI items, such as lspci ??
    Quite correct, if the elusive, so far mythical internal is, indeed a USB device.
    I do not have a clue about what function lshw serves.
    List HardWare; specifically, in our test case, of the Class 'network.'
    [ I assume that by:
    Quote:
    ...the computer in question,
    in P21, you meant the one which is the agreed focus of our main task. ]
    Yes, please.
    root@alan-MS-7616:~# lsusb
    Bus 002 Device 006: ID 13d3:3306 IMC Networks
    Well, look at her! The correct driver, at least in 11.10, is r8712u. In my wife's 10.10 install, r8712u doesn't exist. Since there is no native driver, we can either ignore the internal device or build a driver for it by intricate but eminently do-able techniques.

    Instead, I suggest we return to troubleshooting why the Nano seems to connect and drop.

    What do you prefer?
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, B.Sc., M.Sc., M.A., Ph.D., Sc.D.

  6. #26
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    Re: Linux Won't Recognize Realtek WLan (2)

    H!, Chili555,
    I quite understand that it is difficult to let go of a hard-won certainty; a mysterious one at that.
    May I remind you that in a few days, you have gone from :

    fully confident the internal card can easily be got going .
    To the very existance of an internal USB card being a " mis-conception
    At the risk of you thinking I am saying: “ Told you so”, may I also remind you of how I started this thread, wanting to install the correct RealTek driver, but scared to do so, then being diverted info fixing the GetNet instead{ reminding myself that, for you, my thread is only one of many, to try and keep track of. It amazes me that you do so, as well as you do, }

    You Posted: C >> P21
    the device may be there but without a driver as I stated above.
    Great! Please stick with that position and quit trying to convince me that to believe it might just be there, is a Mis-conception. From that position we can go forward and sort out the Nano first.

    B >> P 22
    I think this issue has been the source of most of our seeming to be at cross purposes; and until it is resolved, I doubt any other things we do, will bear fruit.
    I believe that is still, at this moment, where we are stalled at, and the current position between us.

    “ at this moment,” is 22.22 Hrs. and I have been up a this till 3 am the last three nights and am seriously tired, and averaging 20 typos per sentence . This reply was intended to be short, but it kinda grew, like Topsy. So I am adding the bits you asked for, and will leave sending the others from your previous posts, till tomorrow.

    I am curled up laughing; LOL indeed, My touch screen suddenly started drawing thick circles, about an inch in diameter and they then started moving around jerkily. My mouse pointer was nowhere near. When I moved it nearer, a fruit fly did a vertical take off.!! Sensitive, yeah.

    C >> P25 You quoted from my posting, though I do not know which:

    root@alan-MS-7616:~# lsusb
    Bus 002 Device 006: ID 13d3:3306 IMC Networks
    Now I get:
    o8/11/11 Win7 m/c. Ubuntu 10.10. With Nano.

    root@alan-MS-7616:/home/alan# lsusb
    Bus 002 Device 006: ID 13d3:3306 IMC Networks
    Bus 002 Device 005: ID 0424:2228 Standard Microsystems Corp. 9-in-2 Card Reader
    Bus 002 Device 004: ID 0461:4d0f Primax Electronics, Ltd
    Bus 002 Device 003: ID 0424:2602 Standard Microsystems Corp. USB 2.0 Hub
    Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
    Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 001 Device 003: ID 0bda:8171 Realtek Semiconductor Corp. RTL8188SU 802.11n WLAN Adapter
    Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    root@alan-MS-7616:/home/alan#
    root@alan-MS-7616:/home/alan# nm-tool
    NetworkManager Tool State: connecting
    - Device: wlan0 [Auto CYBERGRANS]
    Type: 802.11 WiFi
    Driver: rtl819xU
    State: connecting (need authentication)
    Default: no
    HW Address: 00:02:72:9C:18:B8
    Capabilities:
    Wireless Properties
    WEP Encryption: yes
    WPA Encryption: yes
    WPA2 Encryption: yes
    Wireless Access Points CYBERGRANS:Infra, 00:12:BF:09:3D:7C, Freq 2437 MHz, Rate 54 Mb/s, Strength 88 WPA
    ,,,,
    Device: eth0
    …....................–
    root@alan-MS-7616:/home/alan#

    Not laughing so much now. The forum editor crashed again and I have lost more than six hours work. This will have to go as-is, hoping for the best
    Edit: Next line " dmesg output" should read " cat syslog output".
    Three examples of dmesg output follow on next Post but one,( or two ) very revealing.
    I have Just grabbed another looking for the bit where it switched from the r8192s to the usb driver. I am adding this out of sequence.
    9/11. Win7 m/c. With Nano. grabbed as soon as posible after Req given
    {Excerpt from previous grab:}
    root@alan-MS-7616:/home/alan# cat /var/log/syslog | grep usb tail -n48
    Nov 8 23:02:41 alan-MS-7616 kernel: [ 1222.424132] usb 2-1.8: new high speed USB device using ehci_hcd and address 7
    Nov 8 23:02:41 alan-MS-7616 kernel: [ 1222.517661] scsi7 : usb-storage 2-1.8:1.0
    Nov 8 23:03:36 alan-MS-7616 kernel: [ 1277.121531] usb 2-1.8: USB disconnect, address 7
    Nov 8 23:28:20 alan-MS-7616 kernel: [ 2757.422419] usb 2-1.8: new high speed USB device using ehci_hcd and address 8
    Nov 8 23:28:20 alan-MS-7616 kernel: [ 2757.515915] scsi8 : usb-storage 2-1.8:1.0
    Nov 8 23:34:37 alan-MS-7616 kernel: [ 3133.314767] usb 2-1.8: USB disconnect, address 8
    root@alan-MS-7616:~#

    root@alan-MS-7616:~# cat /var/log/syslog |grep etwork | -e usb | tail -n48
    Nov 9 11:30:19 alan-MS-7616 kernel: [ 0.558078] usbcore: registered new interface driver usbfs
    Nov 9 11:30:19 alan-MS-7616 kernel: [ 0.558087] usbcore: registered new interface driver hub
    Nov 9 11:30:19 alan-MS-7616 kernel: [ 0.558108] usbcore: registered new device driver usb
    Nov 9 11:30:19 alan-MS-7616 kernel: [ 1.054427] usb 1-1: new high speed USB device using ehci_hcd and address 2
    Nov 9 11:30:19 alan-MS-7616 kernel: [ 1.302476] usb 2-1: new high speed USB device using ehci_hcd and address 2
    Nov 9 11:30:19 alan-MS-7616 kernel: [ 1.506129] usb 1-1.4: new high speed USB device using ehci_hcd and address 3
    Nov 9 11:30:19 alan-MS-7616 kernel: [ 1.706105] usb 2-1.4: new high speed USB device using ehci_hcd and address 3
    Nov 9 11:30:19 alan-MS-7616 kernel: [ 1.869315] usb 2-1.5: new low speed USB device using ehci_hcd and address 4
    Nov 9 11:30:19 alan-MS-7616 kernel: [ 2.072656] usb 2-1.4.1: new high speed USB device using ehci_hcd and address 5
    Nov 9 11:30:19 alan-MS-7616 kernel: [ 2.264927] scsi6 : usb-storage 2-1.4.1:1.0
    Nov 9 11:30:19 alan-MS-7616 kernel: [ 2.265150] usbcore: registered new interface driver usb-storage
    Nov 9 11:30:19 alan-MS-7616 kernel: [ 2.344408] usb 2-1.4.2: new high speed USB device using ehci_hcd and address 6
    Nov 9 11:30:19 alan-MS-7616 kernel: [ 4.299654] usbcore: registered new interface driver hiddev
    Nov 9 11:30:19 alan-MS-7616 kernel: [ 4.301888] input: USB Optical Mouse as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5/2-1.5:1.0/input/input3
    Nov 9 11:30:19 alan-MS-7616 kernel: [ 4.301977] generic-usb 0003:0461:4D0F.0001: input,hidraw0: USB HID v1.11 Mouse [USB Optical Mouse] on usb-0000:00:1d.0-1.5/input0
    Nov 9 11:30:19 alan-MS-7616 kernel: [ 4.301994] usbcore: registered new interface driver usbhid
    Nov 9 11:30:19 alan-MS-7616 kernel: [ 4.301996] usbhid: USB HID core driver
    Nov 9 11:30:19 alan-MS-7616 kernel: [ 13.787544] r8192s_usb: module is from the staging directory, the quality is unknown, you have been warned.
    Nov 9 11:30:19 alan-MS-7616 kernel: [ 14.069212] usbcore: registered new interface driver rtl819xU
    Nov 9 11:30:19 alan-MS-7616 NetworkManager[1065]: SCPlugin-Ifupdown: devices added (path: /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/1-1.4:1.0/net/wlan0, iface: wlan0)
    Nov 9 11:30:19 alan-MS-7616 NetworkManager[1065]: SCPlugin-Ifupdown: device added (path: /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/1-1.4:1.0/net/wlan0, iface: wlan0): no ifupdown configuration found.
    Nov 9 12:48:32 alan-MS-7616 kernel: [ 0.557973] usbcore: registered new interface driver usbfs
    Nov 9 12:48:32 alan-MS-7616 kernel: [ 0.557980] usbcore: registered new interface driver hub
    Nov 9 12:48:32 alan-MS-7616 kernel: [ 0.558004] usbcore: registered new device driver usb
    Nov 9 12:48:32 alan-MS-7616 kernel: [ 1.054427] usb 1-1: new high speed USB device using ehci_hcd and address 2
    Nov 9 12:48:32 alan-MS-7616 kernel: [ 1.298534] usb 2-1: new high speed USB device using ehci_hcd and address 2
    Nov 9 12:48:32 alan-MS-7616 kernel: [ 1.502100] usb 1-1.4: new high speed USB device using ehci_hcd and address 3
    Nov 9 12:48:32 alan-MS-7616 kernel: [ 1.706203] usb 2-1.4: new high speed USB device using ehci_hcd and address 3
    Nov 9 12:48:32 alan-MS-7616 kernel: [ 1.869263] usb 2-1.5: new low speed USB device using ehci_hcd and address 4
    Nov 9 12:48:32 alan-MS-7616 kernel: [ 2.068735] usb 2-1.4.1: new high speed USB device using ehci_hcd and address 5
    Nov 9 12:48:32 alan-MS-7616 kernel: [ 2.261003] scsi6 : usb-storage 2-1.4.1:1.0
    Nov 9 12:48:32 alan-MS-7616 kernel: [ 2.261098] usbcore: registered new interface driver usb-storage
    Nov 9 12:48:32 alan-MS-7616 kernel: [ 2.328549] usb 2-1.4.2: new high speed USB device using ehci_hcd and address 6
    Nov 9 12:48:32 alan-MS-7616 kernel: [ 4.313484] usbcore: registered new interface driver hiddev
    Nov 9 12:48:32 alan-MS-7616 kernel: [ 4.315484] input: USB Optical Mouse as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5/2-1.5:1.0/input/input3
    Nov 9 12:48:32 alan-MS-7616 kernel: [ 4.315576] generic-usb 0003:0461:4D0F.0001: input,hidraw0: USB HID v1.11 Mouse [USB Optical Mouse] on usb-0000:00:1d.0-1.5/input0
    Nov 9 12:48:32 alan-MS-7616 kernel: [ 4.315592] usbcore: registered new interface driver usbhid
    Nov 9 12:48:32 alan-MS-7616 kernel: [ 4.315594] usbhid: USB HID core driver
    Nov 9 12:48:32 alan-MS-7616 kernel: [ 13.659656] r8192s_usb: module is from the staging directory, the quality is unknown, you have been warned.
    Nov 9 12:48:32 alan-MS-7616 kernel: [ 13.911911] usbcore: registered new interface driver rtl819xU
    Nov 9 12:48:32 alan-MS-7616 NetworkManager[1061]: SCPlugin-Ifupdown: devices added (path: /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/1-1.4:1.0/net/wlan0, iface: wlan0)
    Nov 9 12:48:32 alan-MS-7616 NetworkManager[1061]: SCPlugin-Ifupdown: device added (path: /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/1-1.4:1.0/net/wlan0, iface: wlan0): no ifupdown configuration found.
    Edit: Next line " dmesg dump" should read " cat syslog dump".
    root@alan-MS-7616:/home/alan#
    13.50 Hrs. No Reason for edit: Add dmseg dump.

    Chao! bogan.{ Reason for eddit: alter emphsis}
    Last edited by bogan; November 10th, 2011 at 08:54 AM. Reason: Correct spacing, alter dmesg ref.
    "Better Solutions may bring Worsened Problems": After Lao Tse, b. circa 405BC. a contemporary of Confucius, who died circa 600BC.
    They did things differently in those days, apparently!!

  7. #27
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    Re: Linux Won't Recognize Realtek WLan (2)

    All I can say has been said:
    we can either ignore the internal device or build a driver for it by intricate but eminently do-able techniques.

    Instead, I suggest we return to troubleshooting why the Nano seems to connect and drop.

    What do you prefer?
    So; which do you prefer?

    By the way, the internal, which needs the driver module r8712u, should work out of the box with Ubuntu 11.10. Have you tried the live CD? Did it work?
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, B.Sc., M.Sc., M.A., Ph.D., Sc.D.

  8. #28
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    Re: Linux Won't Recognize Realtek WLan (2)

    H!, Chili555,
    You Posted: C >> 24
    Instead, I suggest we return to troubleshooting why the Nano seems to connect and drop.

    What do you prefer?
    Stick to the Nano RTL8188SU.
    I am in no doubt that is the easier choice, in fact, frankly, I never thought we should have left it . I accepted your guidance.

    Tonight I ran WIN7 without any external USB. The Device Manager showed the Realtek RTL8191SU as the only Network Adapter: Realtek RTL8191SU Wireless LAN 802.11n USB 2.0 Network Adapter.

    I then inserted the Nano with Win7 still running. In less than a second, the display updated to show above it, a second Network Adapter: RealtekRTL8191SU Wireless LAN 802.11n USB 2.0 Network Adapter.
    They both use the same network driver, and they both work.

    As far as I am concerned that is a clear QED.
    All I can say has been said:
    I fully agree:
    There really is nothing more to be said.
    By the way, the internal, which needs the driver module r8712u, should work out of the box with Ubuntu 11.10. Have you tried the live CD?
    I have not tried any of the versions of the LiveCd that I accumulated, as far as going on line is concerned. My 11.04 and 11.10 were both upgrade installations, worse luck, so the need did not arise.
    Both the Internal card,a Ralink C73 ( 0r something like that) and the GetNet,al so a Ralink, worked with both 11.04 & 11.11 without problems. The Nano worked with the r8172_usb driver, but not very well at first; took a long time to connect, was very slow, and the connection sometimes dropped out. ( We blamed BT.)
    Once the problems with the installation were put right; Nano worked as well as GetNet, maybe a good deal faster, though both claim 150mB/s.
    [ This was reported in my very first opening Post for this thread,P1 ]

    Chao!, bogan.
    "Better Solutions may bring Worsened Problems": After Lao Tse, b. circa 405BC. a contemporary of Confucius, who died circa 600BC.
    They did things differently in those days, apparently!!

  9. #29
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    Re: Linux Won't Recognize Realtek WLan (2)

    H!, Chill555,
    Part 3:
    These are freshly taken , not old ones dated back to when you first asked for them.
    Code:
    09/11. WIN7 M/C. 10.10. With Nano ( plus Mouse and Ram Stick)
     the only external USB items.  Edit: WiFi not scaning, WiFi `Red-Lined.
    
    root@alan-MS-7616:~# lsusb
    ................
    Bus 001 Device 003: ID 0bda:8171 Realtek Semiconductor Corp. RTL8188SU 802.11n WLAN Adapter
    
    root@alan-MS-7616:~#
    
    root@alan-MS-7616:~# lshw -numeric | grep wlan0     logical name: wlan0
    root@alan-MS-7616:~#
    Code:
    root@alan-MS-7616:~# lshw -numeric
     .......... *-disk:2
    .......... 
     *-network
       description: Wireless interface     physical id: 1        logical name: wlan0      
      serial: 00:02:72:9c:18:b8
      capabilities: ethernet physical wireless    
      configuration: broadcast=yes multicast=yes wireless=802.11b/g/n ... 
    root@alan-MS-7616:~#
    Code:
    root@alan-MS-7616:~# ls /lib/firmware/RTL8192
    ls: cannot access /lib/firmware/RTL8192: No such file or directory
     root@alan-MS-7616:~# ls /lib/firmware/RTL8192*
     /lib/firmware/RTL8192E:   boot.img  data.img  main.img 
     /lib/firmware/RTL8192SE: rtl8192sfw492.bin  rtl8192sfw74.bin  rtl8192sfw.bin
      /lib/firmware/RTL8192SU: rtl8192sfw492.bin  rtl8192sfw74.bin  rtl8192sfw.bin
    root@alan-MS-7616:~#
    More of your outstanding code requests follow tomorrow, if you still need them.

    Chao!, bogan.
    Last edited by bogan; November 9th, 2011 at 11:42 PM. Reason: WiFi note added, lsusb code added
    "Better Solutions may bring Worsened Problems": After Lao Tse, b. circa 405BC. a contemporary of Confucius, who died circa 600BC.
    They did things differently in those days, apparently!!

  10. #30
    Join Date
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    Re: Linux Won't Recognize Realtek WLan (2)

    root@alan-MS-7616:~# ls /lib/firmware/RTL8192
    ls: cannot access /lib/firmware/RTL8192: No such file or directory
    That's not what I asked for. Please see post #21:
    let's see if the firmware is in place; please run and post:
    Code:
    ls /lib/firmware/RTL8192SU
    In fact, you do have the required firmware:
    Code:
    root@alan-MS-7616:~# ls /lib/firmware/RTL8192*
     /lib/firmware/RTL8192E:   boot.img  data.img  main.img 
     /lib/firmware/RTL8192SE: rtl8192sfw492.bin  rtl8192sfw74.bin  rtl8192sfw.bin
      /lib/firmware/RTL8192SU: rtl8192sfw492.bin  rtl8192sfw74.bin  rtl8192sfw.bin
    lshw -numeric | grep wlan0 logical name: wlan0
    The correct command is:
    Code:
    sudo lshw -C network
    We don't need to see it; we know it's there. What we would like to see is:
    Code:
    sudo cat /var/log/syslog | grep -e etwork -e 819 | tail -n25
    Thanks.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, B.Sc., M.Sc., M.A., Ph.D., Sc.D.

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