primary & non primary desktops - https://imgur.com/a/lACGUyL mint is opening in the right hand side picture whereas i need it to open in the left hand side picture ; also maybe related menu/display shows Laptop default whereas i have Desktop set as Primary & greyed out ?

Would this relate to a Lightdm problem ? I'm trying to perfect a clean install & require expert help please !?

cheers
jimmi
$ inxi -Fxx
System:
Host: leoboy-All-Series Kernel: 4.15.0-48-generic x86_64 bits: 64
compiler: gcc v: 7.3.0 Desktop: Cinnamon 4.0.10 wm: muffin dm: LightDM
Distro: Linux Mint 19.1 Tessa base: Ubuntu 18.04 bionic
Machine:
Type: Desktop System: ASUS product: All Series v: N/A
serial: <root required>
Mobo: ASUSTeK model: H81M-K v: Rev X.0x serial: <root required>
BIOS: American Megatrends v: 3602 date: 03/26/2018
Battery:
Device-1: hidpp_battery_0 model: Logitech Wireless Keyboard K540/K545
serial: 4076-92-d2-67-ec charge: 100% status: Discharging
Device-2: hidpp_battery_1 model: Logitech Wireless Mouse
serial: 4055-1b-cb-74-e3 charge: 55% status: Discharging
CPU:
Topology: Quad Core model: Intel Core i7-4790K bits: 64 type: MT MCP
arch: Haswell rev: 3 L2 cache: 8192 KiB
flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 63855
Speed: 2395 MHz min/max: 800/4400 MHz Core speeds (MHz): 1: 2395 2: 2396
3: 2395 4: 2395 5: 2399 6: 2396 7: 2395 8: 2393
Graphics:
Device-1: Intel Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics
vendor: ASUSTeK driver: N/A bus ID: 00:02.0 chip ID: 8086:0412
Display: x11 server: X.Org 1.19.6 driver: vesa unloaded: fbdev,modesetting
resolution: 1920x1200~N/A
OpenGL: renderer: llvmpipe (LLVM 7.0 256 bits) v: 3.3 Mesa 18.2.8
compat-v: 3.1 direct render: Yes
Audio:
Device-1: Intel 8 Series/C220 Series High Definition Audio vendor: ASUSTeK
driver: snd_hda_intel v: kernel bus ID: 00:1b.0 chip ID: 8086:8c20
Sound Server: ALSA v: k4.15.0-48-generic
Network:
Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
vendor: ASUSTeK driver: r8169 v: 2.3LK-NAPI port: e000 bus ID: 03:00.0
chip ID: 10ec:8168
IF: enp3s0 state: up speed: 1000 Mbps duplex: full mac: 9c:5c:8e:00:66:44
Drives:
Local Storage: total: 1.82 TiB used: 74.62 GiB (4.0%)
ID-1: /dev/sda vendor: Seagate model: ST2000DM001-1ER164 size: 1.82 TiB
speed: 6.0 Gb/s serial: W4Z0XM0P
Partition:
ID-1: / size: 1.79 TiB used: 74.62 GiB (4.1%) fs: ext4 dev: /dev/sda1
Sensors:
System Temperatures: cpu: 29.8 C mobo: 27.8 C
Fan Speeds (RPM): cpu: 0
Info:
Processes: 236 Uptime: 2h 56m Memory: 15.54 GiB used: 1.34 GiB (8.6%)
Init: systemd v: 237 runlevel: 5 Compilers: gcc: 7.3.0 alt: 7 Shell: bash
v: 4.4.19 running in: gnome-terminal inxi: 3.0.27

Prior thread.

It is not clear to me whether you wish the laptop display to be left or right, or which display you wish to be primary. The following assumes you wish the external display to be both on the left and primary. If I have them reversed, swap positions of the Option line in each Section "Monitor" or use LeftOf instead of RightOf as required. Save this as /etc/X11/xorg.conf:The two option lines in Section "Device", if those above differ, need to be changed to match the outputs of your laptop's names reported as connected by xrandr and Xorg.0.log.

thanks but the picture i posted shows i need Mint to open on the left - also i have no laptop - the monitor i have is a Dell U2412M 24" LCD TFT

so where does the eDPcon HDMI-1 come from ? You do not say either how do i use the code ? It wont go in the Terminal - tried to use a text editor & when try to save as /etc/X11/xorg.conf says i do not have the right permissions ! Also previously you told me to remove that file . Can we start again please on this matter ?
jimmi

Your OP used the word laptop, so I thought that's what this is about.

Please provide output fromPlease choose a location other than imgur.com to upload images or lengthy logs to. Satisfactory locations include:The new xorg.conf file just be saved under superuser permission, using sudo or logged in as root.

1 members found this post helpful.

$ xrandr | grep connected

xrandr: Failed to get size of gamma for output default
default connected primary 1920x1200+0+0 0mm x 0mm

5/6 hours ago i must have miss-posted & that reply vanished ? but running the test had a better result - there were 2 things side by side 1 being HDMI & something else cannot remember which way round - also it added a programme ArandR to my software in Menu - now all it shows is : default . Tried un-install & re-install but ArandR only shows : default .
Now running xrandr | grep connected returns xrandr: Failed to get size of gamma for output default
default connected primary 1920x1200+0+0 0mm x 0mm but does not add the programme back ?

Something strange is going on. It should resemble this from my Asus/Mint/Cinnamon system:

&
$ /usr/bin/xrandr | grep onnect
/usr/bin/xrandr: Failed to get size of gamma for output default
default connected primary 1920x1200+0+0 0mm x 0mm
leoboy@leoboy-All-Series:~$ /usr/bin/xrandr | grep connect
/usr/bin/xrandr: Failed to get size of gamma for output default
default connected primary 1920x1200+0+0 0mm x 0mm

$ inxi -GxxS
System:
Host: leoboy-All-Series Kernel: 4.15.0-48-generic x86_64 bits: 64
compiler: gcc v: 7.3.0 Desktop: Cinnamon 4.0.10 wm: muffin dm: LightDM
Distro: Linux Mint 19.1 Tessa base: Ubuntu 18.04 bionic
Graphics:
Device-1: Intel Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics
vendor: ASUSTeK driver: N/A bus ID: 00:02.0 chip ID: 8086:0412
Display: x11 server: X.Org 1.19.6 driver: vesa unloaded: fbdev,modesetting
resolution: 1920x1200~N/A
OpenGL: renderer: llvmpipe (LLVM 7.0 256 bits) v: 3.3 Mesa 18.2.8
compat-v: 3.1 direct render: Yes

is this correct ? ASUSTeK driver: N/A

This is a bad report. VESA is a fallback driver, not suited for most normal uses, used mostly for rescue purposes.

Please provide output from:

thnx mrmazda
$ cat /proc/cmdline

BOOT_IMAGE=/boot/vmlinuz-4.15.0-48-generic root=UUID=623faa7a-8dd4-4994-9169-5ceebba7e1af ro recovery nomodeset

Recovery and nomodeset are for troubleshooting and correcting problems. Until you can boot without them you can't expect proper results in Cinnamon. They can be removed temporarily by striking the E key at the Grub menu, then removing them with BS or DEL.

Have you been booting using the default Grub selection? If you have not been, why?

Please provide content of:

1.when computer is off i press the start button on the stack & boots up to wrong window ( you have seen the picture ) . Then using the very small button next to the main start button i reboot past BIOS & press Shift & Grub briefly appears in top left then opens to a Menu - i take the second one down Rescue Mode (tried var things !) & reboot as this gets to a screen where i have internet/terminal albeit in SRM .

2. grep CMDLINE /etc/default/grub

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

the nomodeset aticle is v.pertinent & i will try a few things .
thanks.

As the linked page says, you cannot expect good behavior choosing the rescue selection in the Grub menu. As it says, it's for performing rescue activities, in part by including the nomodeset boot option.

We need to figure out what is going wrong when you use the default Grub selection. To that end, please post the information previously requested, while booted using the default selection.

If booting using the default selection fails in a severe manner, such as locking up the PC, then you can reboot using the rescue selection for the simple purpose of retrieving and uploading Xorg.0.log.old instead of Xorg.0.log.

3.

1.agreed - i only am doing this to get internet & terminal

2.when default Grub selection opens up you cannot see the correct window that is the problem now i beleive - the picture
i sent does not show the big box top right SRM - i have just print screen its the same . re post the information previously requested, while booted using the default selection ? please state what you require as i have checked back & only the last post previous thread have i not sent namely : $ ls -l /etc/X11/xorg.con* ls: cannot access '/etc/X11/xorg.con*': No such file or directory

3. -severe manner, such as locking up the PC - this has never happened .

Are both your display cables the same type? Can you switch them with each other to get the display positions where you need them?

For the present, it is good that "ls -l /etc/X11/xorg.con*" reports no such file.

Please provide output from these 4 commands, in order, with each command preceding its output as shown on your screen:These need to come from a boot that includes neither nomodeset nor rescue on the kernel cmdline. Please wrap the entirety of this paste with the [#] icon above your reply input window.

Code:

$ ls -l /var/log/Xorg.0.log
-rw-r--r-- 1 root root 48975 Apr 29 12:48 /var/log/Xorg.0.log

$ egrep 'Kernel command|onnecte' /var/log/Xorg.0.log
[ 37.419] Kernel command line: BOOT IMAGE = /boot/vmlinuz -4.15.0.48 generic root = UUID = 623Faa7a-8dd4-4994-9169-5ceebba7elaf ro quiet splash
[ 37.972] (II) modeset(0):Output VGA-1 connected 
[ 37.972] (II) modeset(0):Output HDMI-1 connected

-l ~/.local/share/xorg/Xorg.0.log
ls: cannot access '/home/leoboy/.local/share/xorg/Xorg.0.log': No such file or directory

$ egrep 'Kernel command|onnecte' ~/.local/share/xorg/Xorg.0.log
grep: /home/leoboy/.local/share/xorg/Xorg.0.log: No such file or directory

morning & thanks mrmazda - i had todo this more or less by hand as i had no place i could copy to from Terminal ?! the cable question was v.good but alas the answer is NO
1. i got this more or less twice .
2. got this twice - the Kernel command was in Red as was the "onnecte" in connected .
3&4 same output NO
Hope this helps ...