My laptop is an Asus U46SV with both a VGA and HDMI port. At work I always connect a full hd monitor to each port and use the two external monitors exclusively. This is totally messed up in pangolin. Adjusting the monitor settings have crashed Ubuntu several times to the point where I am now expecting some kind of fix from Canonical before trying again. Connecting one monitor seems to work OK but connecting two monitors freaks the system out.
My wireless netcard is an Atheros AR9285 and it worked pretty fine in 11.10, however the signal in 12.04 keeps dropping randomly, making browsing the web a pain. I tried removing the asus_wmi module with no effect, echoing something into a special ath9k config file, disabling the soft block through the rfkill command - everything failed.
Right now it seems that disabling power management from the net card, results in a somewhat better experience.
Check your iwconfig by typing in a console:
sudo iwconfigMy output was:
lo no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"bea"
Mode:Managed Frequency:2.422 GHz Access Point: 00:1D:73:73:xx:xx
Bit Rate=54 Mb/s Tx-Power=16 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
Link Quality=68/70 Signal level=-42 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:29 Missed beacon:0
eth0 no wireless extensions.
See the Power management line? Let's try to disable that:
sudo iwconfig wlan0 power off
This finally had the desired effect of making my web browsing tolerable again, although I guess the wifi will use a bit more power thus draining my battery faster. Oh well, here's to hoping for a fix eventually.
No comments:
Post a Comment