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    [ubuntu] Re: How to interpret new [ufw block] in logs

    Here are my first wireshark captures. I will need to learn more to understand the implications and to tweak my firewall, but it looks like wireshark will teach me a lot. (Understanding network...
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    [ubuntu] Re: How to interpret new [ufw block] in logs

    Thanks! it looks like the standard, so I should have enough doc.
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    [ubuntu] Re: How to interpret new [ufw block] in logs

    I will give wireshark a try; used etherape in the past (nice display), but did not understand the output well enough.
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    [ubuntu] Re: How to interpret new [ufw block] in logs

    Ok -- thanks! I will open it to Chromecast (perhaps to its mac address, since the ip may change). I should try to monitor the polling to understand what's going on... (I'll see if I can figure out...
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    [ubuntu] Re: How to interpret new [ufw block] in logs

    I have installed the app in Chrome, and streamed from there, but only a few times, and not constantly! But the blocking happens constantly...
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    [ubuntu] Re: How to interpret new [ufw block] in logs

    Thanks! I will do as you suggested for Case 2: drop silently. (I googled a bit for "firewall multicast" and it looked like I would have to do some serious studying to understand multicast. Later!)
    ...
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    [ubuntu] How to interpret new [ufw block] in logs

    Since the latest update of 14.04 LTS, my ufw log has been growing in size daily. I found tons of [UFW BLOCK]s about every 20 seconds, sometimes a bit longer. Here are the main cases, case 1 and 2...
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    [ubuntu] How to detect frame size from IPEVO doc camera.

    I have a IPEVO Ziggy doc camera (http://www.ipevo.com/prods/IPEVO-Ziggi-HD-USB-Document-Camera). Linux not supported!, but it sort of works. The only problem is that it is dropping frames. Here is...
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    [ubuntu] Re: Wireless too slow, Intel Pro/Wireless 3945ABG

    I'm going to kill the encryption and see if that will localize the problem. It may take a while (my router is not cooperating); thanks so much for your help. I have a feeling this is going to be a...
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    [ubuntu] Re: Wireless too slow, Intel Pro/Wireless 3945ABG

    TKIP seems to be a problem on ubuntu, at least in the past:
    https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/481432

    I didn't find any options to set TKIP (in the connection...
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    [ubuntu] Re: Wireless too slow, Intel Pro/Wireless 3945ABG

    Thanks for you explanations J31!

    I tried , but that was a flop: wireless would not connect. (That conf file is probably not the right place to add the option.)
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    [ubuntu] Re: Wireless too slow, Intel Pro/Wireless 3945ABG

    iwlwifi.conf is a mystery, but I will create a /etc/modprobe.d/iwl3945.conf and put in there: options iwl3945 swcrypto=0

    For the moment, this is iwlwifi.conf:



    bill@bill-laptop:~$ cat...
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    [ubuntu] Re: Wireless too slow, Intel Pro/Wireless 3945ABG

    The other mystery is the line in report that reads:

    [30755.711490] [UFW BLOCK] IN=wlan0 OUT= MAC=01:00:5e:00:00:fb:70:de:e2:3e:c4:86:08:00 SRC=192.168.1.82 DST=224.0.0.251 LEN=32 TOS=0x00...
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    [ubuntu] Re: Wireless too slow, Intel Pro/Wireless 3945ABG

    thanks for the suggestion; tweak had no effect (I include the wired connection speed at the end: big difference!)

    after tweak and reboot:


    bill@bill-laptop:~$ speedtest-cli
    Retrieving...
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    [ubuntu] Re: Wireless too slow, Intel Pro/Wireless 3945ABG

    With the firewall down (first try) it was slower; with it up, faster.... but probably just network variability. But both tests were higher than I usually get: 16 and 17 Mb/s. I think 20 would be max,...
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    [ubuntu] Re: Wireless too slow, Intel Pro/Wireless 3945ABG

    I use both speedtest-cli and http://www.speedtest.net/ .
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    [ubuntu] Wireless too slow, Intel Pro/Wireless 3945ABG

    My wireless is pretty reliable but it runs at 10 to a maximum of 17 Mb/s. When my cellphone is attached to the network, it works consistently at 20 Mb. 10 is quite slow; my wired connection runs at...
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    [ubuntu] Re: Borked Nautilus default icons

    Well, that was easy: switched to Radiance, and everything worked. Switched back to Ambiance and now everything works there too....In the meantime, I have found more themes and a mission: understand...
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    [ubuntu] Re: Borked Nautilus default icons

    Thanks! (Impressive frog!) I discovered that 1) I am already at the default theme (Ambiance) and 2) some of the icons on the system settings page are missing! (Eek!) I'm wondering now whether...
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    [ubuntu] Borked Nautilus default icons

    I mucked around with Compiz configuration (font size problem with Google Chrome; but that's another story) and now I have borked the icons that appear in list view with Nautilus: same nondescript...
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    [SOLVED] Re: Thinkpad apci problem: mute on!

    I still don't understand this, but I found a fix at http://ebb.org/bkuhn/blog/2014/06/08/volume-hotkeys-thinkpad-t60.html.

    It allows the buttons to unmute the thinkpad_apci module.
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    [SOLVED] Thinkpad apci problem: mute on!

    I upgraded with a clean install of 14.04lts-64. When I first installed it, I got sound. Then I installed quite a few packages (most from here: ...
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    [SOLVED] [Solved] Charger killing backlight

    Final solution: replace the LCD panel. (Next step: see if I can repair the old one by replacing the bulbs)

    Since my symptoms were all over the map, I thought it might be something other than the...
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    [SOLVED] Re: Charger killing backlight

    Nope: the adapter was plugged in and it was running fine until I touched the screen; the backlight went off.

    Must be a cracked board at the plug that is only sensitive when the adapter plug is...
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    [SOLVED] Re: Charger killing backlight

    I will post here a log of my troubleshooting, in case others are bamboozled by a backlight problem.

    The answer to 1) was gconf: http://www.ossramblings.com/set_battery_backlight_dim_amount. I set...
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