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1b1ed1a
(Get the code!)
Similar symptoms as above: frequently switching from gnome-terminal to Firefox causes gnome-terminal to scroll very slowly (takes one or two seconds to scroll a single line). Single monitor display, nVidia GeForce 8400, driver version: 304.43, Ubuntu 12.10 64bit.
Tried to figure out when and why that happens and here are some scenarios:
- happens with every libvte based terminal
- happens with xterm and rxvt-unicode if an xft font is used for display
- does _not_ happen with xterm and rxvt-unicode if a bitmapped xorg core font is used
- happens with every libvte based terminal if system wide font hinting is set to slight and font anti-aliasing is set to none (in this case fonts will look the same as a bitmapped xorg core font)
As you can see, even if the system wide setting is set to look the same as a bitmapped font, it does behave differently in this case. Could this be related to some font rendering performance?