Category: Notes

CLion Activator v1.1

Script activator for Linux, allows you to extend the trial period of CLion for 30 days
IF YOU HAVE AN OPPORTUNITY, PLEASE BUY CLION
Unlike the previous version, this activator is written in Python and clears all references to the trial license. This activator FULLY renews the license for 30 days.

  1. Download script
  2. cd <download folder>
  3. python CLionActivator.py
  4. Enter your current CLion version folder index (usually 0)
  5. Enjoy!

Xorg – change display resolution on AMD GPU, Debian

When I tried to create a new mode in Xorg (via xrandr --newmode), I get the following error:
Failed to get size of gamma for output default
The solution turned out to be simple: I just had to install the firmware-linux-nonfree package and reboot the PC.
So, here is the complete resolution change process:

  1. cvt <width> <height> <refresh rate>, output may be something like this:
    # 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
  2. xrandr --newmode "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync
  3. xrandr --addmode <OUTPUT> 1920x1080_60.00, OUTPUT can be extracted from xrandr output. It can be something like DVI-0, HDMI-0 etc
  4. To apply new mode that you created execute xrandr --output <OUTPUT> --mode 1920x1080_60.00

After that, the screen resolution will change to the one you specified.

Firefox useful settings

You can found hidden config on about:config

  • layers.acceleration.force-enabled set to true, if your screen flickering when you scrolling or watching videos
  • layout.css.devPixelsPerPx can control browser scale with this param. Very useful for users which have HiDPI screens!

Update 19.06.20/20.06.20:

  • browser.display.focus_ring_width set to 0 to remove ugly dotted borders around the links
  • gfx.webrender.all set to true to enable WebRender
  • browser.tabs.tabMinWidth reduce to fit more tabs (like in Chromium)