Public bug reported: Binary package hint: xserver-xorg-video-intel
running fresh installed and updated: Description: Ubuntu 9.10 Release: 9.10 package details: xserver-xorg-video-intel: Installed: 2:2.9.0-1ubuntu2 Candidate: 2:2.9.0-1ubuntu2 Version table: *** 2:2.9.0-1ubuntu2 0 500 http://archive.ubuntu.com karmic/main Packages 100 /var/lib/dpkg/status hardware: laptop HP ProBook 4510s lspci: 00:00.0 Host bridge [0600]: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub [8086:2a40] (rev 07) 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) 00:02.1 Display controller [0380]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a43] (rev 07) 00:1a.0 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 [8086:2937] (rev 03) 00:1a.1 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 [8086:2938] (rev 03) 00:1a.2 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 [8086:2939] (rev 03) 00:1a.7 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 [8086:293c] (rev 03) 00:1b.0 Audio device [0403]: Intel Corporation 82801I (ICH9 Family) HD Audio Controller [8086:293e] (rev 03) 00:1c.0 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 [8086:2940] (rev 03) 00:1c.1 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 [8086:2942] (rev 03) 00:1c.4 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 [8086:2948] (rev 03) 00:1c.5 PCI bridge [0604]: Intel Corporation 82801I (ICH9 Family) PCI Express Port 6 [8086:294a] (rev 03) 00:1d.0 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 [8086:2934] (rev 03) 00:1d.1 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 [8086:2935] (rev 03) 00:1d.2 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 [8086:2936] (rev 03) 00:1d.7 USB Controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 [8086:293a] (rev 03) 00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448] (rev 93) 00:1f.0 ISA bridge [0601]: Intel Corporation ICH9M LPC Interface Controller [8086:2919] (rev 03) 00:1f.2 SATA controller [0106]: Intel Corporation ICH9M/M-E SATA AHCI Controller [8086:2929] (rev 03) 02:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g [14e4:4315] (rev 01) 44:00.0 Ethernet controller [0200]: Marvell Technology Group Ltd. Device [11ab:436c] (rev 10) problem description: i915 causes huge amount of wakeups and keeps my cpu in c0 state most of the time making the laptop battery die in less than 2 hours (in contrast to >5 hours in windows on the same machine) while running only gnome-terminal with powertop open on the desktop. I've also disabled secondary core to prevent "Rescheduling interrupts - kernel IPI" appear in powertop. powertop 1.11: Cn Avg residency P-states (frequencies) C0 (cpu running) (75.8%) C0 0.0ms ( 0.0%) C1 mwait 0.0ms ( 0.0%) C3 mwait 1.5ms (24.2%) Wakeups-from-idle per second : 161.8 interval: 10.0s Power usage (ACPI estimate): 19.0W (0.6 hours) (long term: 18.2W,/0.7h) Top causes for wakeups: 68.7% (528.1) <interrupt> : i...@pci:0000:00:02.0 11.5% ( 88.5) <kernel core> : hrtimer_start_range_ns (tick_sched_timer) 11.1% ( 85.6) <interrupt> : PS/2 keyboard/mouse/touchpad 2.5% ( 19.6) <interrupt> : uhci_hcd:usb4, eth2, HDA Intel 1.5% ( 11.7) Xorg : hrtimer_start_range_ns (hrtimer_wakeup) 1.2% ( 9.6) firefox : hrtimer_start_range_ns (hrtimer_wakeup) 0.8% ( 6.0) <kernel core> : add_timer (wl_timer) 0.7% ( 5.0) gnome-do : hrtimer_start_range_ns (hrtimer_wakeup) 0.6% ( 4.9) syndaemon : hrtimer_start_range_ns (hrtimer_wakeup) 0.3% ( 2.2) <interrupt> : ahci 0.2% ( 1.5) Xorg : hrtimer_start (it_real_fn) 0.1% ( 1.1) gnome-panel : hrtimer_start_range_ns (hrtimer_wakeup) 0.1% ( 1.0) ntpd : hrtimer_start_range_ns (it_real_fn) 0.1% ( 0.9) Xorg : queue_delayed_work (delayed_work_timer_fn) 0.1% ( 0.7) <kernel core> : hrtimer_start (tick_sched_timer) 0.1% ( 0.5) init : neigh_periodic_timer (neigh_periodic_timer) ** Affects: xserver-xorg-video-intel (Ubuntu) Importance: Undecided Status: New -- i915 causes huge amount of wakeups in powertop in karmic https://bugs.launchpad.net/bugs/495596 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp