What to do when lspci and hwinfo freeze the system?

Question

What logs etc to post?

The computer is Clevo 650re with nVidia GeForce GTX 960M

Answer 1

1. Using lspci to get a list of devices

To make lspci work temporarily, you have different possible options that might work :

• Check that everything is up-to-date, including non-free firmwares
• Disable ACPI : add acpi=off to the grub kernel command line (see this thread)
• Blacklist some well-known drivers, like nouveau
• Install an older kernel

When you can run lspci, save the bus IDs in a file :

lspci | awk '{print $1}' > pci_ids.txt

2. Debugging devices

Then, reboot "normally", i.e. with the config where lspci was not working before, and run lspci with each id :

for i in `cat pci_ids.txt`; do echo " * CHECKING $i";lspci -s $i; done

Then, you will find which hardware is the source of the problem.