> I am attempting to debug a problem with suspend on a Panasonic > Toughbook CF-C1 (Intel 2520M, circa 2011). Similar generation hardware > to my Thinkpad X220, but with a PC-card slot. In all other respects to > suspend (and maybe resume) it runs nornally. shutdown -p also works > normally.
> The issue is that suspend does not initiate with apm -z (S3), apm -Z > (S4), or apm -S (standby). The display goes off and network interfaces > go down, but the system continues to run with increasing fan speed, > until I do a forced power off. ... I was able to solve this issue by disabling the tpm 'trusted Platform Module' using config(8). dmesg: > tpm0 at acpi0 TPM_ 1.2 (TIS) addr 0x4e/0x2 It seems 'TIS' is not a supported TPM chip type, and disabling it in the BIOS is not enough to make it go away. UKC > disable tpm* I include the fix here in case it helps someone else with similar suspend/resume issues. I never did find out how the display blanking is called on Suspend, though. -- Chris Billington
