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You may also want to look at Debian's kdump-tools package to automate some of the necessary boot-time steps. The steps are roughly, sudo apt-get install kdump-tools Set USE_KDUMP=1 in /etc/defaults/kdump-tools Add crashkernel=128M to the kernel command-line given in bootloader configuration (e.g. /etc/defaults/grub). It also doesn't hurt to pass ...


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apt-cache policy gdb Sample output: gdb: Installed: 7.7.1-0ubuntu5~14.04.2 Candidate: 7.7.1-0ubuntu5~14.04.2 Version table: *** 7.7.1-0ubuntu5~14.04.2 0 500 http://fr.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages 100 /var/lib/dpkg/status 7.7-0ubuntu3 0 500 http://fr.archive.ubuntu.com/ubuntu/ trusty/main ...


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[ 2.696] (II) RADEON(G0): GPU accel disabled or not working, using shadowfb for KMS` [ 3.144] (EE) RADEON(G0): drmmode_do_crtc_dpms cannot get last vblank counter` in your Xorg.log seems to indicate a failure with your Radeon X1600 graphic card. firmware-linux-nonfree should be installed, providing the needed proprietary firmware for your ATi GPU. If it ...


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I believe these will show up as two separate X displays (typically 0.0 and 0.1) because they're on separate graphics cards. Try doing: DISPLAY=:0.1 xrandr See also https://wiki.archlinux.org/index.php/Multihead You can use xinerama, to use both simultaneously, or you can use traditional multi-head (but then you can't move windows between displays).



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