It's been a while since I reported this, now this machine has received kernel/BIOS/RAM/rest of ubuntu package upgrades, and I cannot reproduce the apparent audio codec power hog with powertop. OTOH, now it's fixated on unused ethernet card, reporting that it is taking 15-16W. Of course all powertop suggestions were followed.
I run powerstat anyway: Running for 300 seconds (30 samples at 10 second intervals). ACPI battery power measurments will start in 180 seconds time Time User Nice Sys Idle IO Run Ctxt/s IRQ/s Fork Exec Exit Watts 18:51:50 2.7 0.1 0.2 97.0 0.0 1 432 363 0 0 0 13.45 18:52:00 2.5 0.0 0.1 96.8 0.6 1 430 361 0 0 0 13.14 18:52:10 2.8 0.1 0.2 97.0 0.0 2 437 368 0 0 0 13.10 18:52:20 2.4 0.0 0.2 97.1 0.4 1 424 365 0 0 0 13.08 18:52:30 2.5 0.0 0.2 97.3 0.0 1 440 374 0 0 0 13.02 18:52:40 2.1 0.0 0.2 96.8 0.9 1 389 331 0 0 0 12.95 18:52:50 2.8 0.0 0.2 96.7 0.1 1 462 389 2 2 2 13.08 18:53:00 2.6 0.0 0.3 96.8 0.3 2 465 382 4 4 4 13.57 18:53:10 2.7 0.0 0.2 97.1 0.0 1 418 345 0 0 0 13.90 18:53:20 2.3 0.0 0.2 97.6 0.0 1 399 337 0 0 0 14.34 18:53:30 2.8 0.1 0.2 96.2 0.8 2 454 385 0 0 0 14.73 18:53:40 2.1 0.0 0.2 97.7 0.0 1 374 309 0 0 0 15.09 18:53:50 2.4 0.1 0.2 97.4 0.0 1 429 369 1 0 0 15.48 18:54:00 2.0 0.0 0.2 97.1 0.8 2 412 355 0 0 0 15.11 18:54:10 2.8 0.0 0.2 96.8 0.2 2 437 366 0 0 0 14.56 18:54:20 2.4 0.0 0.1 97.6 0.0 2 408 344 0 0 0 14.13 18:54:30 2.7 0.0 0.3 96.3 0.8 1 435 353 0 0 0 13.82 18:54:40 2.3 0.0 0.2 97.3 0.2 1 394 338 0 0 0 13.58 18:54:50 2.8 0.1 0.3 96.7 0.2 1 439 385 0 0 0 13.76 18:55:00 2.4 0.0 0.1 96.8 0.8 1 433 375 0 0 0 14.33 18:55:10 4.4 0.0 0.2 95.4 0.0 3 447 400 0 0 0 14.95 18:55:20 2.2 0.0 0.3 97.4 0.2 1 391 333 0 0 0 15.56 18:55:30 2.8 0.0 0.3 96.9 0.1 1 465 401 0 0 0 15.87 18:55:40 2.0 0.0 0.1 97.9 0.0 2 411 353 0 0 0 15.63 18:55:50 3.0 0.1 0.3 96.7 0.0 1 512 431 2 2 5 15.34 18:56:00 2.5 0.0 0.3 96.3 0.9 1 461 376 4 4 5 15.22 18:56:10 2.7 0.1 0.3 97.0 0.0 2 406 325 0 0 0 14.59 18:56:20 2.4 0.0 0.2 97.5 0.0 1 371 303 0 0 0 14.08 18:56:30 3.0 0.0 0.3 95.4 1.3 2 439 353 0 0 1 13.68 18:56:40 2.1 0.0 0.3 97.6 0.0 1 388 316 1 0 0 13.34 -------- ----- ----- ----- ----- ----- ---- ------ ------ ---- ---- ---- ------ Average 2.6 0.0 0.2 96.9 0.3 1.4 426.7 359.5 0.5 0.4 0.6 14.22 StdDev 0.4 0.0 0.1 0.6 0.4 0.5 30.5 28.3 1.1 1.1 1.4 0.90 -------- ----- ----- ----- ----- ----- ---- ------ ------ ---- ---- ---- ------ Minimum 2.0 0.0 0.1 95.4 0.0 1.0 370.7 303.1 0.0 0.0 0.0 12.95 Maximum 4.4 0.1 0.3 97.9 1.3 3.0 512.4 431.4 4.0 4.0 5.0 15.87 -------- ----- ----- ----- ----- ----- ---- ------ ------ ---- ---- ---- ------ Summary: 14.22 Watts on Average with Standard Deviation 0.90 I think it supports the theory that powertop is on crack, as powerstat reports as much usage for the whole system as powertop for the ethernet card only. I will keep an eye if the audio codec issue reoccurs and will post info if it does. Thank you -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/877560 Title: Audio codec draining power when not in use To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/877560/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
