All of lore.kernel.org
 help / color / mirror / Atom feed
From: bugzilla-daemon@bugzilla.kernel.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 211807] [drm:drm_dp_mst_dpcd_read] *ERROR* mstb 000000004e6288dd port 3: DPCD read on addr 0x60 for 1 bytes NAKed
Date: Tue, 20 Jul 2021 12:19:21 +0000	[thread overview]
Message-ID: <bug-211807-2300-BzddJGSJWD@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-211807-2300@https.bugzilla.kernel.org/>

https://bugzilla.kernel.org/show_bug.cgi?id=211807

pavol.harar@gmail.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pavol.harar@gmail.com

--- Comment #2 from pavol.harar@gmail.com ---
I am experiencing the aforementioned error as well.

[drm:drm_dp_mst_dpcd_read [drm_kms_helper]] *ERROR* mstb 00000000f00db6df port
0: DPCD read on addr 0x4b0 for 1 bytes NAKed

I have problems connecting my ThinkPad X1 Carbon 7gen to two external DP
monitors via a ThinkPad USB-C gen2 docking station. Linux is not officially
supported for this dock unfortunately. The problem is that the monitors work,
but seemingly randomly they stop working, either I try to go to Ubuntu settings
or try to open some program with a keyboard shortcut. The monitors flicker,
then die and I have to reboot. Sometimes just reconnecting the cable works, but
usually not. Sometimes when I connect my phone to the dock the monitors start
working again, but most often not. There is a lot of people having these
problems but I have not found any solution. In dmseg only this error appears. I
am to the best of my knowledge up to date with everything, kernel, bios,
firmware etc.

-- 
You may reply to this email to add a comment.

You are receiving this mail because:
You are watching the assignee of the bug.

  parent reply	other threads:[~2021-07-20 12:19 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-16 20:53 [Bug 211807] New: [drm:drm_dp_mst_dpcd_read] *ERROR* mstb 000000004e6288dd port 3: DPCD read on addr 0x60 for 1 bytes NAKed bugzilla-daemon
2021-04-25  2:50 ` [Bug 211807] " bugzilla-daemon
2021-07-20 12:19 ` bugzilla-daemon [this message]
2021-08-27 22:02 ` bugzilla-daemon
2021-09-16 21:48 ` bugzilla-daemon
2021-09-16 21:49 ` bugzilla-daemon
2021-09-17 19:09 ` bugzilla-daemon
2021-09-17 19:13 ` bugzilla-daemon
2021-09-17 20:55 ` bugzilla-daemon
2021-09-18 11:59 ` bugzilla-daemon
2021-09-18 12:56 ` bugzilla-daemon
2021-10-23 21:03 ` bugzilla-daemon
2021-10-26  9:27 ` bugzilla-daemon
2021-10-26 13:09 ` bugzilla-daemon
2021-11-19 12:25 ` bugzilla-daemon
2021-11-19 14:35 ` bugzilla-daemon
2021-11-23 15:48 ` bugzilla-daemon
2021-11-24 13:22 ` bugzilla-daemon
2021-12-13 11:22 ` bugzilla-daemon
2021-12-13 11:23 ` bugzilla-daemon
2022-03-13  8:08 ` bugzilla-daemon
2022-04-07 15:48 ` bugzilla-daemon
2022-07-30 16:29 ` bugzilla-daemon
2022-08-03 15:31 ` bugzilla-daemon

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=bug-211807-2300-BzddJGSJWD@https.bugzilla.kernel.org/ \
    --to=bugzilla-daemon@bugzilla.kernel.org \
    --cc=dri-devel@lists.freedesktop.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.