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Yes, old GPUs are unusable for OpenGL with modern Mesa releases. Their support has been dropped since 2012. Here's the relevant mesa-dev thread. The first Mesa release without legacy drivers is Mesa 8.0.


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The e1000e driver is the one that can run the I2xx intel Ethernet Controllers. And the latest e1000e driver (as of this writing) is capable of running the I219 chip. The The NVM Checksum Is Not Valid message during boot is what was preventing the older drivers from being loaded. On other OSes (notably MS windows) that error is ignored. But Linux appears ...


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You can use udevadm to get this information. For example on my system lspci gives me: # lspci|grep VGA 01:00.0 VGA compatible controller: NVIDIA Corporation GK106 [GeForce GTX 650 Ti Boost] (rev a1) Querying udev instead I get: # udevadm info -q property -p /sys/bus/pci/devices/0000:01:00.0 DEVPATH=/devices/pci0000:00/0000:00:02.0/0000:01:00.0 DRIVER=...


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1) Yes, it is completely safe. Echoing into /sys (or /proc) does not overwrite kernel configuration directly, it runs a kernel userspace function which do validate the input. xrandr/xbacklight actually performs pretty much that (as far as I know). 2) Since it worked before I bet that xbacklight is simply finding the wrong backlight directory in /sys/...


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The other answers give a number of ways of extracting ids from hardware. You could decide to use one piece of hardware as the identifier or many. This is problematic if you need to swap or replace pieces of hardware arbitrarily. Some people might instead store id a generated id on their harddrive (or use the UUID) but harddrides can be clone. TPM modules ...


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I dont think EDID data is cached anywhere, but you can play with sudo ddccontrol -p to see if you can read it at any time over the i2c bus in a vga cable. See doc. Also, use xrandr to control your monitors. It should list which ports of your graphics card have something connected to them and allow you to play with their settings. By default, the Xorg ...



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