Unusable Slowness In 2.6.38-8
After upgrading from 10.10 to 11.04, I found that my system ran several orders of magnitude more slowly. For example, as part of my debugging process I removed and reinstalled the proprietary nVidia drivers. Running `sudo aptitude remove nvidia-current` in a gnome-terminal required 15 minutes of wall-clock time. During this, I had a second terminal open with `top` running, and it showed that throughout this 15 minute ordeal aptitude or one of its subprocesses (dkpg, man-db, etc) was pegging the CPU to 90% or greater utilization. Starting a web browser to file this report took about 10 minutes, then another 2-3 just to render the simple page. Characters appear in this box multiple seconds after I type them. Etc.
This is the case with the Unity shell and with Ubuntu Classic without visual effects (or whatever it is called). It happens with nvidia, nv, and nouveau. However, if I boot into my old kernel (2.6.35-28), then I get the same responsive system that I had been used to.
I was able to find very few similar sounding reports on the web, and all of them are from people using the same family of hardware: the N51 line of laptops by ASUS. See, for example, http://
I imagine it will be rather difficult to debug a hardware-specific problem without having access to that hardware, and I can get by using the old kernel, but I will be happy to perform any tests or provide any further information that might be deemed useful.
DistroRelease: Ubuntu 11.04
Package: linux-image (not installed)
Uname: Linux 2.6.38-8-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
Subdevice #0: subdevice #0
USER PID ACCESS COMMAND
CRDA: Error: [Errno 2] No such file or directory
Card hw:0 'Intel'/'HDA Intel at 0xfbff8000 irq 50'
Mixer name : 'Realtek ALC269'
Components : 'HDA:10ec0269,
Controls : 13
Simple ctrls : 8
Card hw:1 'NVidia'/'HDA NVidia at 0xfde7c000 irq 16'
Mixer name : 'Nvidia GPU 0a HDMI/DP'
Components : 'HDA:10de000a,
Controls : 16
Simple ctrls : 4
Date: Mon Jun 6 05:30:36 2011
MachineType: ASUSTeK Computer Inc. N51Vn
UpgradeStatus: Upgraded to natty on 2011-06-05 (0 days ago)
dmi.bios.vendor: American Megatrends Inc.
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.chassis.vendor: ASUSTeK Computer Inc.
dmi.sys.vendor: ASUSTeK Computer Inc.
|Changed in linux (Ubuntu):|
|status:||New → Confirmed|
|Changed in linux:|
|importance:||Unknown → High|
|status:||Unknown → Incomplete|
|Changed in linux:|
|status:||Incomplete → Invalid|