From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 91954] New: "link training failed": nouveau does not recover from monitor suspend Date: Thu, 10 Sep 2015 03:07:55 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0220818752==" Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: nouveau-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "Nouveau" To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: nouveau.vger.kernel.org --===============0220818752== Content-Type: multipart/alternative; boundary="1441854475.1FC65a1.30651"; charset="UTF-8" --1441854475.1FC65a1.30651 Date: Thu, 10 Sep 2015 03:07:55 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=91954 Bug ID: 91954 Summary: "link training failed": nouveau does not recover from monitor suspend Product: xorg Version: unspecified Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: Driver/nouveau Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Reporter: djc-vNUPr3c+39GHXe+LvDLADg@public.gmane.org QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org When my monitor wakes up from "power save mode" (DPMS suspend) nouveau does not display any output and the monitor goes back to power save after a few seconds. The kernel says: kernel: nouveau E[ PDISP][0000:03:00.0][0x00000006] 02:0006:0f42: link training failed The behaviour of the monitor might be a bit dodgy. When booting the machine I have to mash buttons on the monitor to keep it awake until the firmware starts displaying an image, otherwise I will get no output from the firmware at all. When the monitor goes into power save mode, it stays awake showing a message "Power save mode" for about 3 seconds, then it actually powers down (its LED turns orange). I have noticed that nouveau can recover if I shake the mouse during those three seconds, but it can't recover if I let the monitor power all the way down. Complete logs to follow. Hardware: Lenovo Thinkstation P500, all legacy/CSM features disabled ("pure UEFI") Nvidia Quadro K620 (GM107/NV117) Thinkvision 2840m connected via Displayport Software: xorg-x11-server-Xorg-1.17.2-2.fc22.x86_64 xorg-x11-drv-nouveau-1.0.11-2.fc22.x86_64 Kernel is 4.2.0 plus Fedora patches plus these four commits suggested by Ben Skeggs: http://cgit.freedesktop.org/nouveau/linux-2.6/commit/?h=linux-4.3&id=7c11c99b3c66a8e03494e56ce6e6c5303ee85934 http://cgit.freedesktop.org/nouveau/linux-2.6/commit/?h=linux-4.3&id=f10956d4455fcb24ecbdca30e6d9d88c95dc2588 http://cgit.freedesktop.org/nouveau/linux-2.6/commit/?h=linux-4.3&id=fe0f5d08806dcf7fd51092dfc6ea666ea2392692 http://cgit.freedesktop.org/nouveau/linux-2.6/commit/?h=linux-4.3&id=2a89359415da2fc1250b4c205de3c384bd781f54 -- You are receiving this mail because: You are the assignee for the bug. --1441854475.1FC65a1.30651 Date: Thu, 10 Sep 2015 03:07:55 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"
Bug ID 91954
Summary "link training failed": nouveau does not recover from monitor suspend
Product xorg
Version unspecified
Hardware Other
OS All
Status NEW
Severity normal
Priority medium
Component Driver/nouveau
Assignee nouveau@lists.freedesktop.org
Reporter djc@djc.id.au
QA Contact xorg-team@lists.x.org 

When my monitor wakes up from "power save mode" (DPMS suspend) nouveau does not
display any output and the monitor goes back to power save after a few seconds.
The kernel says:

kernel: nouveau E[   PDISP][0000:03:00.0][0x00000006] 02:0006:0f42: link
training failed

The behaviour of the monitor might be a bit dodgy. When booting the machine I
have to mash buttons on the monitor to keep it awake until the firmware starts
displaying an image, otherwise I will get no output from the firmware at all.

When the monitor goes into power save mode, it stays awake showing a message
"Power save mode" for about 3 seconds, then it actually powers down (its LED
turns orange). I have noticed that nouveau can recover if I shake the mouse
during those three seconds, but it can't recover if I let the monitor power all
the way down.

Complete logs to follow.

Hardware:
Lenovo Thinkstation P500, all legacy/CSM features disabled ("pure UEFI")
Nvidia Quadro K620 (GM107/NV117)
Thinkvision 2840m connected via Displayport

Software:
xorg-x11-server-Xorg-1.17.2-2.fc22.x86_64
xorg-x11-drv-nouveau-1.0.11-2.fc22.x86_64
Kernel is 4.2.0 plus Fedora patches plus these four commits suggested by Ben
Skeggs:
http://cgit.freedesktop.org/nouveau/linux-2.6/commit/?h=linux-4.3&id=7c11c99b3c66a8e03494e56ce6e6c5303ee85934
http://cgit.freedesktop.org/nouveau/linux-2.6/commit/?h=linux-4.3&id=f10956d4455fcb24ecbdca30e6d9d88c95dc2588
http://cgit.freedesktop.org/nouveau/linux-2.6/commit/?h=linux-4.3&id=fe0f5d08806dcf7fd51092dfc6ea666ea2392692
http://cgit.freedesktop.org/nouveau/linux-2.6/commit/?h=linux-4.3&id=2a89359415da2fc1250b4c205de3c384bd781f54

You are receiving this mail because:
  • You are the assignee for the bug.
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