From: Michael Orlitzky <mjo@gentoo.org>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] Wlan disappeared after suspend
Date: Tue, 13 Sep 2016 08:08:39 -0400 [thread overview]
Message-ID: <72ddea8d-cf3d-74a3-3700-9ce6397be500@gentoo.org> (raw)
In-Reply-To: <20160913082326.GA38638@becker.bs.l>
On 09/13/2016 04:23 AM, Bertram Scharpf wrote:
> Hi,
>
> after suspend, my wlan is dead and it cannot be restarted....
>
> What do I have to try?
I had this same problem with the ath5k driver (still do, I bet)
on my Thinkpad x61s. What happens if you run "sudo rfkill list"
after you resume from suspend? Does it show that the wireless is
"hard blocked"?
In my case, it was, so I tried something stupid. I patched my kernel
to answer "no" to the question "is rfkill enabled?"... and it worked!
--- a/drivers/net/wireless/ath/ath5k/rfkill.c 2012-05-28 21:16:04.000000000 -0400
+++ b/drivers/net/wireless/ath/ath5k/rfkill.c 2012-05-28 21:17:17.000000000 -0400
@@ -66,10 +66,8 @@
static bool
ath5k_is_rfkill_set(struct ath5k_hw *ah)
{
- /* configuring GPIO for input for some reason disables rfkill */
- /*ath5k_hw_set_gpio_input(ah, ah->rf_kill.gpio);*/
- return ath5k_hw_get_gpio(ah, ah->rf_kill.gpio) ==
- ah->rf_kill.polarity;
+ /* Hard code this to work around a stupid bug. */
+ return 0;
}
static void
Maybe you can do the same thing for your driver, if rfkill is actually the issue.
I have a possibly outdated writeup of the issue here:
http://michael.orlitzky.com/articles/thinkpad_x61s_ath5k_rfkill_issues.php
next prev parent reply other threads:[~2016-09-13 12:08 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-13 8:23 [gentoo-user] Wlan disappeared after suspend Bertram Scharpf
2016-09-13 12:08 ` Michael Orlitzky [this message]
2016-09-13 13:12 ` [gentoo-user] Emerge interferes with Git (Was: Wlan disappeared after suspend) Bertram Scharpf
2016-09-13 15:12 ` Rich Freeman
2016-09-13 15:19 ` Michael Orlitzky
2016-09-13 17:49 ` Bertram Scharpf
2016-09-17 8:31 ` [gentoo-user] " Kai Krakow
2016-09-17 13:54 ` Bertram Scharpf
2016-09-17 14:36 ` Rich Freeman
2016-09-17 15:18 ` Kai Krakow
2016-09-18 2:41 ` Bertram Scharpf
2016-09-13 13:18 ` [gentoo-user] Wlan disappeared after suspend Bertram Scharpf
2016-09-13 13:22 ` Michael Orlitzky
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