Bug 198719 - Frequent bluetooth disconnects with Intel 8265
Summary: Frequent bluetooth disconnects with Intel 8265
Status: NEW
Alias: None
Product: Drivers
Classification: Unclassified
Component: Bluetooth (show other bugs)
Hardware: Intel Linux
: P1 normal
Assignee: linux-bluetooth@vger.kernel.org
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-02-08 08:02 UTC by robsmith11
Modified: 2019-03-03 06:41 UTC (History)
1 user (show)

See Also:
Kernel Version: 4.15.1
Subsystem:
Regression: No
Bisected commit-id:


Attachments
dmesg (55.01 KB, text/plain)
2018-02-08 08:02 UTC, robsmith11
Details
dmesg with updated sfi and ddc (60.52 KB, text/plain)
2018-02-21 19:22 UTC, Roi Rodríguez
Details

Description robsmith11 2018-02-08 08:02:18 UTC
Created attachment 274063 [details]
dmesg

I've had this problem since owning a Dell XPS 13 9350 laptop with an Intel 8265 wireless card.  If I use a bluetooth keyboard (with or without wifi enabled), it will work fine for 5-15 minutes, but then stop responding for 30 seconds and reconnect.  I've just tried the latest linux-firmware from git that included an updated firmware for the Intel 8265, but I'm having the same problem.

I've attached my dmesg.
Comment 1 robsmith11 2018-02-08 08:05:45 UTC
Also see here for some debugging output that I had recorded a month ago:
https://bbs.archlinux.org/viewtopic.php?id=233490

Please let me know if there's any additional information that would be helpful.
Comment 2 Emmanuel Grumbach 2018-02-08 08:08:05 UTC
Hello,

you have CC'ed the WiFi people but this is a bluetooth issue. We can help when there are Coex issues, but not for pure BT issues.
We'll be CC'ed to this bug, but can't take ownership on it.
Comment 3 robsmith11 2018-02-08 08:15:03 UTC
Hi Emmanuel,

Sorry about that.  Is there an Intel email address for bluetooth?

I was following the bug reporting instructions here that I interpreted as being for all wireless issues:
https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi/debugging
Comment 4 Emmanuel Grumbach 2018-02-08 08:18:22 UTC
(In reply to robsmith11 from comment #3)
> Sorry about that.  Is there an Intel email address for bluetooth?
No worries. I am sorry, but I am not aware about an equivalent support address for bluetooth.

> 
> I was following the bug reporting instructions here that I interpreted as
> being for all wireless issues:
> https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi/debugging

This teaches me that I should emphasize this on the webpage then.
Comment 5 Roi Rodríguez 2018-02-21 19:21:12 UTC
I think i have the same bug. Bluetooth mouse disconnects after 10-30seconds and I have to restart BT to get connecting it again.

I solved the problem updating intel/ibt-11-5.sfi and intel/ibt-11-5.ddc from here https://github.com/wkennington/linux-firmware/tree/master/intel because they are more recent as far as I know.

Still some error messages on the dmesg but it's working now.
Comment 6 Roi Rodríguez 2018-02-21 19:22:56 UTC
Created attachment 274305 [details]
dmesg with updated sfi and ddc
Comment 7 robsmith11 2018-02-22 03:17:08 UTC
(In reply to Roi Rodríguez from comment #5)
> I think i have the same bug. Bluetooth mouse disconnects after 10-30seconds
> and I have to restart BT to get connecting it again.
> 
> I solved the problem updating intel/ibt-11-5.sfi and intel/ibt-11-5.ddc from
> here https://github.com/wkennington/linux-firmware/tree/master/intel because
> they are more recent as far as I know.
> 
> Still some error messages on the dmesg but it's working now.

I don't think they are quite the same because:

1. When my device disconnects, it always reconnects automatically after ~30 seconds without needing a restart.

2. My chip uses the ibt-12-6 firmware.

3. I'm already using the latest version found in the git repo to which you linked.

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