Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
bumblebee laptop and external monitor
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index Kernel & Hardware
View previous topic :: View next topic  
Author Message
Nicias
Guru
Guru


Joined: 06 Dec 2005
Posts: 444

PostPosted: Wed Sep 03, 2014 2:19 pm    Post subject: bumblebee laptop and external monitor Reply with quote

I have an Asus UL30vt laptop with nvidia/intel hybrid graphics. I have bumblebee working fine. I am thinking of getting an external monitor and I want to determine if the HDMI and/or VGA ports are connected to the nvidia chip or the intel chip. How can I determine this without actually plugging one in?
Back to top
View user's profile Send private message
dweezil-n0xad
Apprentice
Apprentice


Joined: 30 Oct 2006
Posts: 156
Location: Ostend, Belgium

PostPosted: Wed Sep 03, 2014 8:53 pm    Post subject: Reply with quote

On my Asus N56VV-S4069H laptop, the HDMI-port is wired to the Intel chip and I can extend the desktop on my external monitor.

I don't know how to determine this without actually plugging one in. Do you have /sys/class/drm/card0-HDMI-A-1 or /sys/class/drm/card0-VGA-A-1 on your system?
_________________
i7-4790K | 16GB DDR3 | GTX 970 | 500GB SSD
ASUS N56VV | i7-3630QM | 12GB DDR3 | GT 750M | 256GB SSD
Back to top
View user's profile Send private message
Nicias
Guru
Guru


Joined: 06 Dec 2005
Posts: 444

PostPosted: Thu Sep 04, 2014 1:08 am    Post subject: Reply with quote

I have
Code:
$ ls /sys/class/drm
card0  card0-DP-1  card0-LVDS-1  card0-VGA-1  controlD64  version

Looking at the ports on the side of my machine I see VGA, HDMI, no DP. Maybe the HDMI is port is being driven by DP hardware? In any case this looks promising. Any other way to investigate? If I do plug it in, how do I check to see if it works?
Back to top
View user's profile Send private message
dweezil-n0xad
Apprentice
Apprentice


Joined: 30 Oct 2006
Posts: 156
Location: Ostend, Belgium

PostPosted: Thu Sep 04, 2014 9:45 am    Post subject: Reply with quote

My system also only has a VGA and HDMI port.
Code:
$ ls /sys/class/drm
card0  card0-DP-1  card0-HDMI-A-1  card0-LVDS-1  card0-VGA-1  controlD64  version
I have not tested the VGA output

Run x11-apps/xrandr after you plug in the HDMI-cable to see if it's detected. my output:
Code:
$ xrandr
Screen 0: minimum 8 x 8, current 3840 x 1080, maximum 32767 x 32767
LVDS1 connected 1920x1080+0+0 (normal left inverted right x axis y axis)
344mm x 194mm
   1920x1080      60.0*+
   1400x1050      60.0 
   1280x1024      60.0 
   1280x960       60.0 
   1024x768       60.0 
   800x600        60.3     56.2 
   640x480        59.9 
VGA1 disconnected (normal left inverted right x axis y axis)
HDMI1 connected 1920x1080+1920+0 (normal left inverted right x axis y axis)
527mm x 296mm
   1920x1080      60.0*+   50.0     59.9 
   1920x1080i     60.1     50.0     60.0 
   1600x1200      60.0 
   1600x900       60.0 
   1280x1024      75.0     60.0 
   1152x864       75.0 
   1280x720       60.0     50.0     59.9 
   1440x576i      50.1 
   1024x768       75.1     60.0 
   1440x480i      60.1     60.1 
   800x600        75.0     60.3 
   720x576        50.0 
   720x480        60.0     59.9 
   640x480        75.0     60.0     59.9 
   720x400        70.1 
DP1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)


When I boot my laptop or start X with the HDMI-cable plugged-in, the external monitor shows a copy of the laptop monitor.
In X or when I plug in the HDMI-cable I run this script:
Code:
#!/bin/sh
xrandr --output LVDS1 --mode 1920x1080 --pos 0x0 --output HDMI1 --mode 1920x1080 --pos 1920x0
xinput set-prop 11 261 5
This creates a 3840x1080 desktop. The xinput line slows down the touchpad (source). Increasing the Constant Deceleration works best for me.
I also use this script to turn off the external monitor and reset the touchpad speed.
Code:
#!/bin/sh
xrandr --output HDMI1 --off
xinput set-prop 11 261 2.5

_________________
i7-4790K | 16GB DDR3 | GTX 970 | 500GB SSD
ASUS N56VV | i7-3630QM | 12GB DDR3 | GT 750M | 256GB SSD
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Kernel & Hardware All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum