[Bug 267958] [NEW] hang after modifying cpufreq/* after suspend/resume on amd x2/690g

lytles srlytle_list at yahoo.com
Tue Sep 9 00:03:58 UTC 2008

Public bug reported:

amd x2 b3-2350 (low power, 45w), ati x1250, asus m2a-vm hdmi, 4g

i can suspend and resume, with two problems:
1. the virtual terminals are garbled after a resume
2. writing to any of the files in /sys/devices/system/cpu/cpu*/cpufreq results in an immediate crash / hang

i've tested this two ways. normally i use fglrx (restricted module) and
X. in this case, the vt's are garbled but X works fine. to verify that
fglrx wasn't part of the problem i booted with init=/bin/bash and set up
the network (leaving fglrx unloaded, ie no X). in this case the vt's
weren't garbled, but the monitor complained about "bad frequency" so i
turned it off and ssh'd in.

in both methods, the suspend/resume succeeded (other than the vt issue)
but as soon as the cpufreq files are changed, the machine crashes -
can't ping, no ctrl-alt-delete, no sysrq, keyboard led's don't change,

** Affects: linux-meta (Ubuntu)
     Importance: Undecided
         Status: New

hang after modifying cpufreq/* after suspend/resume on amd x2/690g
You received this bug notification because you are a member of Kernel
Bugs, which is subscribed to linux-meta in ubuntu.

More information about the kernel-bugs mailing list