I followed the readme http://us.download.nvidia.com/XFree86/Linux-x86_64/375.39/README/index.html on driver download page. My thinkpad t450s has nvidia 940m. I installed latest 375.39 and want to try “Offloading Graphics Display with RandR 1.4”, my laptop screen works fine, but my external led monitor connected via a displayport to dvi adapter freezes on kde login. It stops at kde splash screen, and lights up, but you can not drag window or move cursor onto it.
How can I fix this ?
kernel: 4.4.57-1.el7.elrepo.x86_64
driver: 375.39
xrandr: 1.4
$ xrandr -v
xrandr program version 1.4.3
Server reports RandR version 1.4
xorg version: 1.17.2
$ Xorg -version
X.Org X Server 1.17.2
Release Date: 2015-06-16
X Protocol Version 11, Revision 0
Build Operating System: 2.6.32-573.18.1.el6.x86_64
Current Operating System: Linux localhost.localdomain 4.4.57-1.el7.elrepo.x86_64 #1 SMP Sun Mar 26 10:38:02 EDT 2017 x86_64
Kernel command line: BOOT_IMAGE=/vmlinuz-4.4.57-1.el7.elrepo.x86_64 root=UUID=6c39834f-116f-4d6c-9c8a-bd103723cd52 ro crashkernel=auto rhgb quiet LANG=en_US.UTF-8 nouveau.modeset=0 rd.driver.blacklist=nouveau
Build Date: 06 November 2016 12:43:39AM
Build ID: xorg-x11-server 1.17.2-22.el7
Current version of pixman: 0.34.0
Before reporting problems, check http://wiki.x.org to make sure that you have the latest version.
xorg.conf , same as readme
Section "ServerLayout"
Identifier "layout"
Screen 0 "nvidia"
Inactive "intel"
EndSection
Section "Device"
Identifier "nvidia"
Driver "nvidia"
BusID "PCI:4:0:0"
EndSection
Section "Screen"
Identifier "nvidia"
Device "nvidia"
Option "AllowEmptyInitialConfiguration"
EndSection
Section "Device"
Identifier "intel"
Driver "modesetting"
EndSection
Section "Screen"
Identifier "intel"
Device "intel"
EndSection
and I added these to /etc/gdm/Init/Default, before the last line “exit 0”
xrandr --setprovideroutputsource modesetting NVIDIA-0
xrandr --auto
nvidia-settings, clicking on advanced does not show any new options
http://i.imgur.com/HTyp6l1.png
external screen always like this
http://i.imgur.com/Bj8aQkV.jpg
/var/log/Xorg.0.log
https://pastebin.com/LZUKm8e1
$ xrandr --listproviders
Providers: number : 2
Provider 0: id: 0x204 cap: 0x1, Source Output crtcs: 0 outputs: 0 associated providers: 1 name:NVIDIA-0
Provider 1: id: 0x47 cap: 0x2, Sink Output crtcs: 3 outputs: 5 associated providers: 1 name:modesetting
$ xrandr -q
Screen 0: minimum 8 x 8, current 3840 x 1080, maximum 16384 x 16384
eDP-1-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 309mm x 174mm
1920x1080 60.02*+
1400x1050 59.98
1280x1024 60.02
1280x960 60.00
1024x768 60.04 60.00
960x720 60.00
928x696 60.05
896x672 60.01
800x600 60.00 60.32 56.25
700x525 59.98
640x512 60.02
640x480 60.00 59.94
512x384 60.00
400x300 60.32 56.34
320x240 60.05
DisplayPort-1-0 disconnected (normal left inverted right x axis y axis)
HDMI-1-0 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 476mm x 268mm
1920x1080 60.00*+
1680x1050 59.88
1280x1024 75.02 60.02
1440x900 59.90
1280x960 60.00
1280x720 60.00
1024x768 75.08 70.07 60.00
832x624 74.55
800x600 72.19 75.00 60.32 56.25
640x480 75.00 72.81 66.67 60.00
720x400 70.08
DisplayPort-1-1 disconnected (normal left inverted right x axis y axis)
HDMI-1-1 disconnected (normal left inverted right x axis y axis)
nvidia-bug-report.log.gz (165 KB)