I could not get linux-image-3.13.0-5-generic to work on saucy. Xorg
would not register my video card correctly.
I've now patched 3.11.0-15-generic and I've been using the system as
such since Thursday. Yesterday I encountered a hang of the wifi driver
just after joining a torrent, which had a lot
Very much so (although the settings page could be lying to me):
Copy from the settings page of my AP:
Wireless Channel and SSID
Wireless Channel: 11
Extension Channel: 7
SSID: ...
Wireless Mode: 802.11g
Bandwidth: 20/40Mhz (not changeable)
Broadcast SSID: enabled
Protected Mode: OFF
This is what I got from iw dev wlan0 scan dump (selecting only my AP):
BSS 94:44:52:24:a3:2c (on wlan0) -- associated
TSF: 68298172938 usec (0d, 18:58:18)
freq: 2462
beacon interval: 100
capability: ESS Privacy ShortSlotTime (0x0411)
signal: -58.00 dBm
1/ Compute model:
It's a custom built PC I assembled recently, using a 'Cooler Master Elite 120
Advanced' case. I suppose it is not overheating, although I very much so
distrust the sensors output now I look at it:
ubuntu@ubuntu:~$ sensors
radeon-pci-0008
Adapter: PCI adapter
temp1:
@Oleksij, it appears tougher to locate than I thought.
I'm back to kernel 3.11.0-15-generic. I tried to overheat by stressing
the CPU, GPU and wireless device for 15 minutes by running stress --cpu
4, glxgears fullscreen (vsync on however) and setting txpower to 20 and
pingflooding my gateway
Public bug reported:
A long time after a cold boot, my wireless connection starts dropping,
will try to reconnect but will not come back again. When I'm in that
state only a suspend, waiting a while and resuming gets my wireless
connection back again. However, after that state it does not take
Ah, yeah, I'm now running firmware 1.4, found at: https://github.com/qca
/open-ath9k-htc-firmware
(The original ubuntu firmware gave me the same problems, which caused me
to upgrade)
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Cannot reproduce this crash anymore.
Only a couple of packages are different since then:
@ -7 +7 @@
-dbus 1.6.12-0ubuntu7
+dbus 1.6.12-0ubuntu10
@@ -15 +15 @@
-gcc-4.8-base 4.8.1-10ubuntu6
+gcc-4.8-base 4.8.1-10ubuntu9
@@ -17,2 +17,2 @@
-initramfs-tools 0.103ubuntu1
-initramfs-tools-bin
This bug also affects my AR9271 internal USB wifi device.
I've tried kernel 3.12.0-031200-generic but this did not help using
vanilla settings.
I ended up using:
$ cat /etc/modprobe.d/cfg80211.conf
options ath9k_htc nohwcrypt=1
and set txpower to 12 at runtime to circumvent this problem.
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I experienced the same problem with libx264 (2:0.123.2189+git35) using
ffmpeg.
After reading http://ffmpeg.org/pipermail/ffmpeg-
devel/2013-March/141083.html I added '-fno-aggressive-loop-
optimizations' to CFLAGS and libx264 does not crash on initialization
anymore.
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