LinuxCNC on Linux Mint 20 quick and nearly easy install

BigJohnT
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5 years 8 months ago #199209 by BigJohnT

Replied by BigJohnT on topic LinuxCNC on Linux Mint 20 quick and nearly easy install

tommylight, do you know if a internet connection is required to install? I tried this morning with a USB adapter micro SD card and it said it failed to read the CD drive? I had no internet this morning as the dish was covered with snow...

JT

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tommylight
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5 years 8 months ago #199213 by tommylight

Replied by tommylight on topic LinuxCNC on Linux Mint 20 quick and nearly easy install

To install Linux Mint it does not, just do not choose to update while installing or to install additional codex.
Most of the other files can be downloaded and transferred, but i am sure there are some other files downloaded during install that are not on the list.

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MarcoGaspar
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5 years 8 months ago #199640 by MarcoGaspar

Replied by MarcoGaspar on topic LinuxCNC on Linux Mint 20 quick and nearly easy install

Hello,

Thanks for the 5* post

I installed mint 20 following this post steps and it's all working (linuxcnc).

The only thing i can't do is setting a higher resolution for my monitor on RT kernel how can i add more resolutions?

Best Regards,
Marco Gaspar

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tommylight
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5 years 8 months ago #199648 by tommylight

Replied by tommylight on topic LinuxCNC on Linux Mint 20 quick and nearly easy install

What does
xrandr
in a terminal say ?

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MarcoGaspar
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5 years 8 months ago #199651 by MarcoGaspar

Replied by MarcoGaspar on topic LinuxCNC on Linux Mint 20 quick and nearly easy install

xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 480, current 640 x 480, maximum 640 x 480
default connected primary 640x480+0+0 0mm x 0mm
640x480 73.00*

cvt 1920 1080 60
# 1920x1080 59.96 Hz (CVT 2.07M9) hsync: 67.16 kHz; pclk: 173.00 MHz
Modeline "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync

xrandr --addmode default 1920x1080_60.00
xrandr: Failed to get size of gamma for output default
xrandr: cannot find mode "1920x1080_60.00"

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tommylight
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5 years 8 months ago #199658 by tommylight

Replied by tommylight on topic LinuxCNC on Linux Mint 20 quick and nearly easy install

Something very screwy there, no graphic anything! :S
What graphic card?
Here is what i get:

Code:

cnc@X570:~$ xrandr
Screen 0: minimum 320 x 200, current 2560 x 1440, maximum 16384 x 16384
DisplayPort-0 disconnected primary (normal left inverted right x axis y axis)
DisplayPort-1 disconnected (normal left inverted right x axis y axis)
HDMI-A-0 connected 2560x1440+0+0 (normal left inverted right x axis y axis) 708mm x 399mm
   2560x1440     59.95*+  69.93  
   1920x1200     59.95  
   1920x1080     60.00    50.00    59.94  
   1600x1200     60.00  
   1680x1050     59.88  
   1600x900      60.00  
   1280x1024     60.02  
   1440x900      59.90  
   1280x800      59.95  
   1280x720      60.00    50.00    59.94  
   1024x768      60.00  
   800x600       60.32  
   720x576       50.00  
   720x480       60.00    59.94  
   640x480       60.00    59.94  
   720x400       70.08  
HDMI-A-1 disconnected (normal left inverted right x axis y axis)
DVI-D-0 disconnected (normal left inverted right x axis y axis)
cnc@X570:~$ 

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MarcoGaspar
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5 years 8 months ago #199661 by MarcoGaspar

Replied by MarcoGaspar on topic LinuxCNC on Linux Mint 20 quick and nearly easy install

Onboard

www.gigabyte.com/Motherboard/H310M-DS2-rev-10/sp#sp

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tommylight
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5 years 8 months ago #199668 by tommylight

Replied by tommylight on topic LinuxCNC on Linux Mint 20 quick and nearly easy install

In general, if something is not working on Linux Mint i blame the hardware !

Can you try to boot with the generic kernel and check if that works?
I am aware that RTAI kernel caused low resolution on some PC's but it was at least 1024x768, never had issues with RT-Preempt on any PC, and i have 3 of them and 3 laptops on this desk only, more in the shop.

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MarcoGaspar
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5 years 8 months ago #199679 by MarcoGaspar

Replied by MarcoGaspar on topic LinuxCNC on Linux Mint 20 quick and nearly easy install

I will reinstall it.

Maybe a graphic card solve this?

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MarcoGaspar
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5 years 8 months ago #199765 by MarcoGaspar

Replied by MarcoGaspar on topic LinuxCNC on Linux Mint 20 quick and nearly easy install

Its the same.... already try to reinstall 3 or 4 times...

without the rt it works:

mjg@CNC:~$ xrandr
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 16384 x 16384
DP-1 connected primary 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
1024x768 60.00*
800x600 60.32 56.25
848x480 60.00
640x480 59.94
HDMI-1 disconnected (normal left inverted right x axis y axis)
mjg@CNC:~$

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