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19.1 Legacy Series / Changing VGA console resolution after install
« on: March 15, 2019, 03:21:07 am »
I have an old LCD monitor hooked up to my firewall that only supports a max of 1024x768 at 60Hz, and the default install doesn't seem to do that with any settings I could find. So I spent a while today figuring this out so I thought I'd share my solution.
I logged into the console and followed the instructions here to set up and test the right resolution:
https://lme.postach.io/post/changing-console-resolution-in-freebsd-10-with-vt-4
To set the resolution to test in the shell:
Then load the module to have it take effect:
This will reload your console in the resolution you asked for. If it didn't work, you have to reboot. Once you find a resolution that works, you can make it the default on boot by adding 2 system tunables:
These should take effect somewhat late in the boot process but in time to use the system console.
I logged into the console and followed the instructions here to set up and test the right resolution:
https://lme.postach.io/post/changing-console-resolution-in-freebsd-10-with-vt-4
To set the resolution to test in the shell:
Code: [Select]
kenv kern.vt.fb.default_mode="800x600"
(or "1024x768" or whatever)Then load the module to have it take effect:
Code: [Select]
kldload i915kms
This will reload your console in the resolution you asked for. If it didn't work, you have to reboot. Once you find a resolution that works, you can make it the default on boot by adding 2 system tunables:
Code: [Select]
Tunable:i915kms_load
Value: YES
Tunable: kern.vt.fb.default_mode
Value: 800X600
These should take effect somewhat late in the boot process but in time to use the system console.