Public bug reported:
Binary package hint: xserver-xorg-video-ati
Top causes for wakeups:
40.7% ( 85.0) <interrupt> : [EMAIL PROTECTED]:0000:01:00.0
Running powertop on a freshly installed gutsy beta install desktop shows
that the ati r128 driver is waking up 85 times per second, even on an
idle system.
lspci:
00:00.0 Host bridge [0600]: Intel Corporation 82815 815 Chipset Host Bridge and
Memory Controller Hub [8086:1130] (rev 02)
00:01.0 PCI bridge [0604]: Intel Corporation 82815 815 Chipset AGP Bridge
[8086:1131] (rev 02)
00:1e.0 PCI bridge [0604]: Intel Corporation 82801 PCI Bridge [8086:244e] (rev
01)
00:1f.0 ISA bridge [0601]: Intel Corporation 82801BA ISA Bridge (LPC)
[8086:2440] (rev 01)
00:1f.1 IDE interface [0101]: Intel Corporation 82801BA IDE U100 Controller
[8086:244b] (rev 01)
00:1f.4 USB Controller [0c03]: Intel Corporation 82801BA/BAM USB Controller #1
[8086:2444] (rev 01)
00:1f.5 Multimedia audio controller [0401]: Intel Corporation 82801BA/BAM AC'97
Audio Controller [8086:2445] (rev 01)
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Rage 128 RF/SG
AGP [1002:5246]
02:04.0 Mass storage controller [0180]: Promise Technology, Inc. PDC20375
(SATA150 TX2plus) [105a:3375] (rev 02)
02:08.0 Ethernet controller [0200]: Intel Corporation 82801BA/BAM/CA/CAM
Ethernet Controller [8086:2449] (rev 01)
** Affects: xserver-xorg-video-ati (Ubuntu)
Importance: Undecided
Status: New
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r128 driver wakes up too often (85/sec at idle)
https://bugs.launchpad.net/bugs/150078
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