Public bug reported:
Binary package hint: nvidia-glx-177
I have a Dell XPS M1330 laptop, running Hardy with kernel
2.6.24-19-generic and nvidia-glx-177 177.80-0ubuntu1 from Intrepid, with
the 177.80 nvidia-kernel-source package as well.
The recent upgrade from 177.76 to 177.80 causes my GPU fan to run
continuously at maximum speed while in X's VT. If I switch to the nv
driver, the fan does not run at max speed all the time. Here's what I
did to track this down:
1. Switched to "nv" in xorg.conf and rebooted.
2. Logged in to X. Fan was operating normally (i.e. barely running at all).
3. Checked lsmod, and the nvidia *kernel* module was loaded.
4. Switched back to "nvidia" in xorg.conf, logged out of X, and restarted KDM.
As soon as the screen switched to X's VT, the GPU fan went to max speed.
After 3-5 seconds, the fan dropped to a lower speed for 0.5-1 second, and then
went back to max speed.
5. This fast-slow-fast-slow cycle continued until I switched back to tty2,
upon which the fan went to idle. Switching back to X's VT caused the fan to go
back to max, and switching to tty2 caused it to go back to idle.
Making the problem even worse is the fact that rebooting doesn't slow
down the fan. I had to shut down the system for the fan to slow down,
and it stayed down until X loaded the nvidia GLX module, then it went
back to max speed.
This is causing the laptop to sound like a vacuum cleaner, and cutting
at least 30 minutes out of my battery life, maybe more.
I'm downgrading to 177.76 for now. I hope Intrepid is not released with
this bug.
** Affects: nvidia-graphics-drivers-177 (Ubuntu)
Importance: Undecided
Status: New
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nvidia-glx-177 177.80 causes fan to always run at max speed
https://bugs.launchpad.net/bugs/281504
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