[SOLVED] Debian 10 dual monitor

Liniub · 04-22-2020, 02:09 PM

Hi
I have been trying to fix this for a few days.
I know it works only on my ubuntu and linux mint machine
My debian cant detect the second monitor.
I can set on bios PCIexp or iGPU but It's useless ,the monitors and the cable video
works.
I've tried with AMD video card and I get the same result. One monitor doesnt work.
Starting from a fresh installation I always followed this guide to install nivida driver
( non-free)
https://wiki.debian.org/NvidiaGraphi...legacy_GPUs.29

I also read about a bug
https://www.reddit.com/r/archlinux/c...lve_failed_to/
I have that bug . I cant solve it because I already have the lastest firmware.

Any help , thanks

Code:

Screen 0: minimum 8 x 8, current 1600 x 900, maximum 16384 x 16384
DVI-I-0 disconnected (normal left inverted right x axis y axis)
VGA-0 disconnected (normal left inverted right x axis y axis)
DVI-I-1 connected primary 1600x900+0+0 (normal left inverted right x axis y axis) 443mm x 249mm
   1600x900      59.98*+  60.00  
   1280x1024     75.02    60.02  
   1152x864      75.00  
   1024x768      75.03    60.00  
   800x600       75.00    60.32  
   640x480       75.00    59.94  
HDMI-0 disconnected (normal left inverted right x axis y axis)

Code:

System:
  Host: Debian Kernel: 4.19.0-8-amd64 x86_64 bits: 64 compiler: gcc 
  v: 8.3.0 Desktop: Cinnamon 3.8.8 Distro: Debian GNU/Linux 10 (buster) 
Machine:
  Type: Desktop Mobo: ASUSTeK model: H61M-K v: Rev X.0x 
  serial: 04115678776 BIOS: American Megatrends v: 0801 date: 07/21/2014 
CPU:
  Topology: Dual Core model: Intel Core i3-3250 bits: 64 type: MT MCP 
  arch: Ivy Bridge rev: 9 L2 cache: 3072 KiB 
  flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 27937 
  Speed: 1597 MHz min/max: 1600/3500 MHz Core speeds (MHz): 1: 1597 2: 1596 
  3: 1597 4: 1597 
Graphics:
  Device-1: Intel Xeon E3-1200 v2/3rd Gen Core processor Graphics 
  vendor: ASUSTeK driver: i915 v: kernel bus ID: 00:02.0 
  Device-2: NVIDIA GF108 [GeForce GT 440] vendor: ASUSTeK driver: nvidia 
  v: 340.108 bus ID: 01:00.0 
  Display: x11 server: X.Org 1.20.4 driver: modesetting,nvidia 
  unloaded: fbdev,nouveau,vesa resolution: 1600x900~60Hz 
  OpenGL: renderer: GeForce GT 440/PCIe/SSE2 v: 4.4.0 NVIDIA 340.108 
  direct render: Yes

Code:

00:02.0 Display controller: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller (rev 09)
	Subsystem: ASUSTeK Computer Inc. Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller
	Kernel driver in use: i915
	Kernel modules: i915
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
	Subsystem: ASUSTeK Computer Inc. P8 series motherboard
--
01:00.0 VGA compatible controller: NVIDIA Corporation GF108 [GeForce GT 440] (rev a1)
	Subsystem: ASUSTeK Computer Inc. GF108 [GeForce GT 440]
	Kernel driver in use: nvidia
	Kernel modules: nvidia
01:00.1 Audio device: NVIDIA Corporation GF108 High Definition Audio Controller (rev a1)
	Subsystem: ASUSTeK Computer Inc. GF108 High Definition Audio Controller

Code:

4.19.0-8-amd64 #1 SMP Debian 4.19.98-1 (2020-01-26)

xrandr --auto --> no output

Quote:

hwinfo --monitor --short
monitor:
HW191D

It detects only one monitor

I also tried this :

Quote:

cvt 1440 900 60

# 1440x900 59.89 Hz (CVT 1.30MA) hsync: 55.93 kHz; pclk: 106.50 MHz
Modeline "1440x900_60.00" 106.50 1440 1528 1672 1904 900 903 909 934 -hsync +vsync

xrandr --newmode "1440x900_60.00" 106.50 1440 1528 1672 1904 900 903 909 934 -hsync +vsync

xrandr --addmode VGA-0 1400x900_60.00

Added the script ~/.xprofile

Quote:

#!/bin/sh
xrandr --newmode "1440x900_60.00" 106.50 1440 1528 1672 1904 900 903 909 934 -hsync +vsync
xrandr --addmode VGA-0 1400x900_60.00

I have no more idea
Thanks

ondoho · 04-23-2020, 07:09 AM

Is this a hybrid graphics sort of laptop?
If not, I believe you can only use one GPU at a time.
Are you trying to plug each monitor into its own GPU? Maybe you'd have more luck if you let one GPU handle both monitors.

Liniub · 04-23-2020, 11:19 AM

Hi

It's a desktop with a GT440 videocard and the integrated video output on motherboard
I always used both on Linux.

A few days ago I switched to Debian 10 and Radeon video card. It's has only a DVI output . It doesn't work.
Today I received a new brand GT440 with dvi and vga output.............. It works as you said Thanks!!!!
I dont know why only Linux mint works with GT440 + iGPU and Debiant doesnt. It's a mistery

so the solution is to use only one GPU