From: Mihai Donțu <hidden> Date: 2011-03-16 22:23:11
Added linux-usb and linux-wireless to CC.
On Thursday 17 March 2011 00:18:31 Mihai Donțu wrote:
Hi,
I have just upgraded to 2.6.38 and discovered that I can't use my wireless
device (BCM4312 802.11a/b/g). I press Fn + F2, the bluetooth led lights
and after a second it turns off by itself. In dmesg I'm seeing the
following:
[ 88.167212] usb 1-2.2: new full speed USB device using ehci_hcd and
address 5
[ 88.782330] usb 1-2.2: USB disconnect, address 5
I switched to 2.6.37 until I'll have some time to bisect this. In the mean
time I have attached the output of lspci, interrupts and dmesg.
Thanks,
Added linux-usb and linux-wireless to CC.
On Thursday 17 March 2011 00:18:31 Mihai Donțu wrote:
quoted
Hi,
I have just upgraded to 2.6.38 and discovered that I can't use my wireless
device (BCM4312 802.11a/b/g). I press Fn + F2, the bluetooth led lights
and after a second it turns off by itself. In dmesg I'm seeing the
following:
[ 88.167212] usb 1-2.2: new full speed USB device using ehci_hcd and
address 5
[ 88.782330] usb 1-2.2: USB disconnect, address 5
I switched to 2.6.37 until I'll have some time to bisect this. In the mean
time I have attached the output of lspci, interrupts and dmesg.
From: Mihai Donțu <hidden> Date: 2011-03-16 23:07:30
On Thursday 17 March 2011 00:35:02 Rafał Miłecki wrote:
2011/3/16 Mihai Donțu [off-list ref]:
quoted
Added linux-usb and linux-wireless to CC.
On Thursday 17 March 2011 00:18:31 Mihai Donțu wrote:
quoted
Hi,
I have just upgraded to 2.6.38 and discovered that I can't use my
wireless device (BCM4312 802.11a/b/g). I press Fn + F2, the bluetooth
led lights and after a second it turns off by itself. In dmesg I'm
seeing the following:
[ 88.167212] usb 1-2.2: new full speed USB device using ehci_hcd and
address 5
[ 88.782330] usb 1-2.2: USB disconnect, address 5
I switched to 2.6.37 until I'll have some time to bisect this. In the
mean time I have attached the output of lspci, interrupts and dmesg.
I suspect it's WMI related. What is your machine?
It's a Dell Latitude D520 but I can't find a link with full specs (in
English).
Add Cc. to platform driver guys.
於 四，2011-03-17 於 01:06 +0200，Mihai Donțu 提到：
On Thursday 17 March 2011 00:35:02 Rafał Miłecki wrote:
quoted
2011/3/16 Mihai Donțu [off-list ref]:
quoted
Added linux-usb and linux-wireless to CC.
On Thursday 17 March 2011 00:18:31 Mihai Donțu wrote:
quoted
Hi,
I have just upgraded to 2.6.38 and discovered that I can't use my
wireless device (BCM4312 802.11a/b/g). I press Fn + F2, the bluetooth
led lights and after a second it turns off by itself. In dmesg I'm
seeing the following:
[ 88.167212] usb 1-2.2: new full speed USB device using ehci_hcd and
address 5
[ 88.782330] usb 1-2.2: USB disconnect, address 5
I switched to 2.6.37 until I'll have some time to bisect this. In the
mean time I have attached the output of lspci, interrupts and dmesg.
I suspect it's WMI related. What is your machine?
It's a Dell Latitude D520 but I can't find a link with full specs (in
English).
From: Alan Stern <stern@rowland.harvard.edu> Date: 2011-03-17 02:37:04
On Thu, 17 Mar 2011, Mihai Donțu wrote:
On Thursday 17 March 2011 00:35:02 Rafał Miłecki wrote:
quoted
2011/3/16 Mihai Donțu [off-list ref]:
quoted
Added linux-usb and linux-wireless to CC.
On Thursday 17 March 2011 00:18:31 Mihai Donțu wrote:
quoted
Hi,
I have just upgraded to 2.6.38 and discovered that I can't use my
wireless device (BCM4312 802.11a/b/g). I press Fn + F2, the bluetooth
led lights and after a second it turns off by itself. In dmesg I'm
seeing the following:
[ 88.167212] usb 1-2.2: new full speed USB device using ehci_hcd and
address 5
[ 88.782330] usb 1-2.2: USB disconnect, address 5
I switched to 2.6.37 until I'll have some time to bisect this. In the
mean time I have attached the output of lspci, interrupts and dmesg.
I suspect it's WMI related. What is your machine?
It's a Dell Latitude D520 but I can't find a link with full specs (in
English).
Thanks for the links. I'll see if I can get anywhere from there.
Another thing you can try is to get usbmon traces under both 2.6.37 and
2.6.38. Instructions are in the kernel source file
Documentation/usb/usbmon.txt.
Alan Stern
From: Mihai Donțu <hidden> Date: 2011-03-18 22:48:41
On Thursday 17 March 2011 04:36:54 Alan Stern wrote:
On Thu, 17 Mar 2011, Mihai Donțu wrote:
quoted
On Thursday 17 March 2011 00:35:02 Rafał Miłecki wrote:
quoted
2011/3/16 Mihai Donțu [off-list ref]:
quoted
Added linux-usb and linux-wireless to CC.
On Thursday 17 March 2011 00:18:31 Mihai Donțu wrote:
quoted
Hi,
I have just upgraded to 2.6.38 and discovered that I can't use my
wireless device (BCM4312 802.11a/b/g). I press Fn + F2, the
bluetooth led lights and after a second it turns off by itself. In
dmesg I'm seeing the following:
[ 88.167212] usb 1-2.2: new full speed USB device using ehci_hcd
and address 5
[ 88.782330] usb 1-2.2: USB disconnect, address 5
I switched to 2.6.37 until I'll have some time to bisect this. In
the mean time I have attached the output of lspci, interrupts and
dmesg.
I suspect it's WMI related. What is your machine?
It's a Dell Latitude D520 but I can't find a link with full specs (in
English).
Thanks for the links. I'll see if I can get anywhere from there.
Another thing you can try is to get usbmon traces under both 2.6.37 and
2.6.38. Instructions are in the kernel source file
Documentation/usb/usbmon.txt.
I'm unable to get a usbmon dump on 2.6.37. Strangely, the only USB device
making noise (on 0u) is my mouse's wireless receiver. I had no such problem on
2.6.38 though.
--
Mihai Donțu
From: Alan Stern <stern@rowland.harvard.edu> Date: 2011-03-19 01:38:22
On Sat, 19 Mar 2011, Mihai Donțu wrote:
quoted
Another thing you can try is to get usbmon traces under both 2.6.37 and
2.6.38. Instructions are in the kernel source file
Documentation/usb/usbmon.txt.
I'm unable to get a usbmon dump on 2.6.37. Strangely, the only USB device
making noise (on 0u) is my mouse's wireless receiver. I had no such problem on
2.6.38 though.
I noticed your config has CONFIG_USB_EHCI_TT_NEWSCHED disabled. You
really should enable it (although I doubt that it is responsible for
this problem, since 2.6.37 works without it).
The 2.6.38 usbmon trace shows pretty much what you might expect: The
device connects and is initialized and enumerated normally, then 2
seconds later it disconnects. We really need to see a 2.6.37 usbmon
trace to compare for differences.
Can you try again? If usbmon isn't working, there's something _very_
strange going on.
Alan Stern
From: Mihai Donțu <hidden> Date: 2011-04-02 15:45:00
On Wed, 16 Mar 2011 19:11:31 -0600
"Joey Lee" [off-list ref] wrote:
Add Cc. to platform driver guys.
於 四，2011-03-17 於 01:06 +0200，Mihai Donțu 提到：
quoted
On Thursday 17 March 2011 00:35:02 Rafał Miłecki wrote:
quoted
2011/3/16 Mihai Donțu [off-list ref]:
quoted
Added linux-usb and linux-wireless to CC.
On Thursday 17 March 2011 00:18:31 Mihai Donțu wrote:
quoted
Hi,
I have just upgraded to 2.6.38 and discovered that I can't use
my wireless device (BCM4312 802.11a/b/g). I press Fn + F2, the
bluetooth led lights and after a second it turns off by
itself. In dmesg I'm seeing the following:
[ 88.167212] usb 1-2.2: new full speed USB device using
ehci_hcd and address 5
[ 88.782330] usb 1-2.2: USB disconnect, address 5
I switched to 2.6.37 until I'll have some time to bisect this.
In the mean time I have attached the output of lspci,
interrupts and dmesg.
I suspect it's WMI related. What is your machine?
It's a Dell Latitude D520 but I can't find a link with full specs
(in English).
Thanks for the links. I'll see if I can get anywhere from there.
Today I had some time on my hands and decided to get this working.
Which I did. So the difference between 2.6.37 and 2.6.38 is that now I
have to invoke rfkill to enable my wireless device, because pressing
Fn + F2 toggles the hard and soft lock states of the device _but_ only
to 'yes'. Pressing the key combination again will only remove the hard
lock. On 2.6.37 it would remove both. For example:
On 2.6.37:
# rfkill list 0 # wifi disabled
0: dell-wifi: Wireless LAN
Soft blocked: yes
Hard blocked: yes
# rfkill list 0 # wifi enabled (via Fn + F2)
0: dell-wifi: Wireless LAN
Soft blocked: no
Hard blocked: no
(rfkill events)
1301758599.537508: idx 0 type 1 op 2 soft 0 hard 0
1301758600.561087: idx 2 type 1 op 2 soft 0 hard 0
On 2.6.38:
# rfkill list 0 # wifi disabled
0: dell-wifi: Wireless LAN
Soft blocked: yes
Hard blocked: yes
# rfkill list 0 # wifi enabled (via Fn + F2)
0: dell-wifi: Wireless LAN
Soft blocked: yes
Hard blocked: no
(rfkill events)
1301758830.251541: idx 0 type 1 op 2 soft 1 hard 0
Is there supposed to be a piece of software that listens for these
events and toggles the soft state whenever the hard state changes?
Thanks,
--
Mihai Donțu