[Bug 784659] Re: Scrolling takes huge amount CPU

[Santeri Savonlahti]

Upgrade to Natty did not fix. PPA-mesa drivers did not fix either.

** Description changed:

  Binary package hint: firefox
  
- Web browser is hitting a software fallback in the X server, but the Chrome process is still using more CPU than X.
- Scrolling even a light web site using ATI open drivers on Ubuntu 10.10 eats huge amount of CPU. Proprietary drivers gives same results.  Tested with Firefox 3.6-4.1 and Google Chrome. 
- Graphics card is ATI Radeon 3470. 
- Laptop: Toshiba Satelite A300  
+ Web browser is hitting a software fallback in the X server, but the browser process is still using more CPU than X.
+ Scrolling even a light web site using ATI open drivers on Ubuntu 10.10 eats huge amount of CPU. Proprietary drivers gives same results.  Tested with Firefox 3.6-4.1 and Google Chrome.
+ Graphics card is ATI Radeon 3470.
+ Laptop: Toshiba Satelite A300
  Excepted: Scrolling is smooth
  Happened: Scrolling lags and eats huge amount of CPU.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 10.10
  Package: xorg 1:7.5+6ubuntu3
  ProcVersionSignature: Ubuntu 2.6.35-28.50-generic 2.6.35.11
  Uname: Linux 2.6.35-28-generic i686
  Architecture: i386
  DRM.card0.DIN.1:
-  status: disconnected
-  enabled: disabled
-  dpms: On
-  modes: 
-  edid-base64:
+  status: disconnected
+  enabled: disabled
+  dpms: On
+  modes:
+  edid-base64:
  DRM.card0.HDMI.A.1:
-  status: disconnected
-  enabled: disabled
-  dpms: On
-  modes: 
-  edid-base64:
+  status: disconnected
+  enabled: disabled
+  dpms: On
+  modes:
+  edid-base64:
  DRM.card0.LVDS.1:
-  status: connected
-  enabled: enabled
-  dpms: On
-  modes: 1280x800 1280x720 1152x768 1024x768 800x600 848x480 720x480 640x480
-  edid-base64: AP///////wBMo0E3AAAAAAARAQOAIRV4CkLVllhSiichUFQAAAABAQEBAQEBAQEBAQEBAQEB7hoAgFAgEDAQMBMAS88QAAAZAAAADwAAAAAAAAAAACOHAmQAAAAA/gBTQU1TVU5HCiAgICAgAAAA/gAxNTRBVDA3LVQwMQogACI=
+  status: connected
+  enabled: enabled
+  dpms: On
+  modes: 1280x800 1280x720 1152x768 1024x768 800x600 848x480 720x480 640x480
+  edid-base64: AP///////wBMo0E3AAAAAAARAQOAIRV4CkLVllhSiichUFQAAAABAQEBAQEBAQEBAQEBAQEB7hoAgFAgEDAQMBMAS88QAAAZAAAADwAAAAAAAAAAACOHAmQAAAAA/gBTQU1TVU5HCiAgICAgAAAA/gAxNTRBVDA3LVQwMQogACI=
  DRM.card0.VGA.1:
-  status: disconnected
-  enabled: disabled
-  dpms: On
-  modes: 
-  edid-base64:
+  status: disconnected
+  enabled: disabled
+  dpms: On
+  modes:
+  edid-base64:
  Date: Wed May 18 17:46:27 2011
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
  MachineType: TOSHIBA Satellite A300
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-28-generic root=UUID=fe6ca671-883e-452f-8b3a-184c55e7b060 ro quiet splash
  ProcEnviron:
-  LANG=en_US.UTF-8
-  SHELL=/bin/bash
+  LANG=en_US.UTF-8
+  SHELL=/bin/bash
  SourcePackage: xorg
  Symptom: display
  dmi.bios.date: 02/13/2009
  dmi.bios.vendor: INSYDE
  dmi.bios.version: 1.80
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: Base Board Product Name
  dmi.board.vendor: Intel Corp.
  dmi.board.version: Base Board Version
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 1
  dmi.chassis.vendor: Chassis Manufacturer
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnINSYDE:bvr1.80:bd02/13/2009:svnTOSHIBA:pnSatelliteA300:pvrPSAG4E-04M01XN5:rvnIntelCorp.:rnBaseBoardProductName:rvrBaseBoardVersion:cvnChassisManufacturer:ct1:cvrChassisVersion:
  dmi.product.name: Satellite A300
  dmi.product.version: PSAG4E-04M01XN5
  dmi.sys.vendor: TOSHIBA
  system:
-  distro:             Ubuntu
-  codename:           maverick
-  architecture:       i686
-  kernel:             2.6.35-28-generic
+  distro:             Ubuntu
+  codename:           maverick
+  architecture:       i686
+  kernel:             2.6.35-28-generic

-- 
You received this bug notification because you are a member of Mozilla
Bugs, which is subscribed to firefox in Ubuntu.
https://bugs.launchpad.net/bugs/784659

Title:
  Scrolling takes huge amount CPU

To manage notifications about this bug go to:
https://bugs.launchpad.net/xorg-server/+bug/784659/+subscriptions