From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 102722] New: [regression] changing resolution hangs the display on Lenovo Thinkpad p51 Date: Thu, 14 Sep 2017 06:09:48 +0000 Message-ID: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1200043347==" 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 --===============1200043347== Content-Type: multipart/alternative; boundary="15053693880.fb9FA9CDc.23719"; charset="UTF-8" --15053693880.fb9FA9CDc.23719 Date: Thu, 14 Sep 2017 06:09:48 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D102722 Bug ID: 102722 Summary: [regression] changing resolution hangs the display on Lenovo Thinkpad p51 Product: xorg Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: critical Priority: medium Component: Driver/nouveau Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Reporter: charmer-freedesktop.org-kYREfu93XNOEi8DpZVb4nw@public.gmane.org QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org on my brand new, rather expensive, Lenovo Thinkpad p51 (model 20HHCTO1WW) changing the display resolution from 4K to something readable causes the display to go black. the only way to recover is to power cycle the laptop.= =20 this is a regression. with the newer Nouveau driver included in Kubuntu 16.04.3 (Ubuntu 16.04.3), changing the resolution from 4K (3840x2160) to 2K (1920x1080) (and probably= any other resolution) causes the screen to go black. with the older Nouveau driver included in Kubuntu 16.04.2 (Ubuntu 16.04.2) changing the display resolution from 4K to 2K works fine. Kubuntu 16.04.2 uses the xserver-xorg-video-nouveau-hwe-16.04 package at version 1:1.0.12-2~16.04.1. Kubuntu 16.04.3 uses the xserver-xorg-video-nouveau-hwe-16.04 package at version 1:1.0.14-0ubuntu1 apparently the change from 1.0.12 --> 1.0.14 broke the ability to change the screen resolution. but on the plus side, the Nouveau driver in 16.04.3 (1:1.0.14-0ubuntu1) fixes an equally dire problem where the screen around t= he cursor is "corrupted" in a way that makes the 16.04.2 driver pretty much unusable. more details: i just bought a Lenovo p51with the intention of running Ubuntu (Kubuntu) Li= nux on it. so far the new laptop is unusable due to display driver issues (both Nouveau and proprietary Nvidia drivers have issues that make them unusable). my laptop configuration is tagged as model 20HHCTO1WW and includes a 3840x2= 160 display, "hybrid" NVIDIA Quadro M2200M 4GB, and Xeon E3-1505M. the driver s= eems to identify the Nvidai chip as "NVIDIA GM206 (126360a1)". i'll attach the dmesg output later. the problem is easy to reproduce by booting off a "Live USB" version of Kub= untu 16.04.3 (and the 16.04.2 Live USB if you want to see resolution change work= ing but areas near the cursor corrupted). i marked this as Critical because its almost impossible to use the 15" scre= en on the laptop with a display resolution of 3840x2160 on Linux. the default text sizes make things unreadable unless i put my eyes about 3 inches (8 cm) away from the screen. if i change font sizes to be (much) larger, the labe= ls and icons do not scale as well so they are still very difficult to read. --=20 You are receiving this mail because: You are the assignee for the bug.= --15053693880.fb9FA9CDc.23719 Date: Thu, 14 Sep 2017 06:09:48 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated
Bug ID 102722
Summary [regression] changing resolution hangs the display on Lenovo = Thinkpad p51
Product xorg
Version unspecified
Hardware x86-64 (AMD64)
OS Linux (All)
Status NEW
Severity critical
Priority medium
Component Driver/nouveau
Assignee nouveau@lists.freedesktop.org
Reporter charmer-freedesktop.org@punchdown.org
QA Contact xorg-team@lists.x.org 

on my brand new, rather expensive, Lenovo Thinkpad p51 (model =
20HHCTO1WW)
changing the display resolution from 4K to something readable causes the
display to go black.  the only way to recover is to power cycle the laptop.=
=20
this is a regression.

with the newer Nouveau driver included in Kubuntu 16.04.3 (Ubuntu 16.04.3),
changing the resolution from 4K (3840x2160) to 2K (1920x1080) (and probably=
 any
other resolution) causes the screen to go black.

with the older Nouveau driver included in Kubuntu 16.04.2 (Ubuntu 16.04.2)
changing the display resolution from 4K to 2K works fine.

Kubuntu 16.04.2 uses the xserver-xorg-video-nouveau-hwe-16.04 package at
version 1:1.0.12-2~16.04.1.

Kubuntu 16.04.3 uses the xserver-xorg-video-nouveau-hwe-16.04 package at
version
1:1.0.14-0ubuntu1

apparently the change from 1.0.12 --> 1.0.14 broke the ability to change=
 the
screen resolution.  but on the plus side, the Nouveau driver in 16.04.3
(1:1.0.14-0ubuntu1) fixes an equally dire problem where the screen around t=
he
cursor is "corrupted" in a way that makes the 16.04.2 driver pret=
ty much
unusable.

more details:

i just bought a Lenovo p51with the intention of running Ubuntu (Kubuntu) Li=
nux
on it.  so far the new laptop is unusable due to display driver issues (both
Nouveau and proprietary Nvidia drivers have issues that make them unusable).

my laptop configuration is tagged as model 20HHCTO1WW and includes a 3840x2=
160
display, "hybrid" NVIDIA Quadro M2200M 4GB, and Xeon E3-1505M. th=
e driver seems
to identify the Nvidai chip as "NVIDIA GM206 (126360a1)".  i'll a=
ttach the
dmesg output later.

the problem is easy to reproduce by booting off a "Live USB" vers=
ion of Kubuntu
16.04.3 (and the 16.04.2 Live USB if you want to see resolution change work=
ing
but areas near the cursor corrupted).

i marked this as Critical because its almost impossible to use the 15"=
 screen
on the laptop with a display resolution of 3840x2160 on Linux.  the default
text sizes make things unreadable unless i put my eyes about 3 inches (8 cm)
away from the screen.  if i change font sizes to be (much) larger, the labe=
ls
and icons do not scale as well so they are still very difficult to read.

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