(In reply to comment #14) > The issue may be from clock, for this chipset we have done a lot of work to > find best clock in latest driver, could you please update your driver? > > Thanks for your help > Ma Ling > Hello: I am using the latest edge drivers from Ubuntu's Xorg PPA which is at: deb http://ppa.launchpad.net/ubuntu-x-swat/x-updates/ubuntu jaunty main deb-src http://ppa.launchpad.net/ubuntu-x-swat/x-updates/ubuntu jaunty main ii xserver-xorg 1:7.4~5ubuntu18 the X.Org X server ii xserver-xorg-core 2:1.6.0-0ubuntu14 Xorg X server - core server ii xserver-xorg-input-all 1:7.4~5ubuntu18 the X.Org X server -- input driver metapacka ii xserver-xorg-input-evdev 1:2.1.1-1ubuntu4 X.Org X server -- evdev input driver ii xserver-xorg-input-kbd 1:1.3.1-2ubuntu1 X.Org X server -- keyboard input driver ii xserver-xorg-input-mouse 1:1.4.0-1 X.Org X server -- mouse input driver ii xserver-xorg-input-synaptics 0.99.3-2ubuntu5 Synaptics TouchPad driver for X.Org/XFree86 ii xserver-xorg-input-wacom 1:0.8.2.2-0ubuntu2 X.Org X server -- Wacom input driver ii xserver-xorg-video-all 1:7.4~5ubuntu18 the X.Org X server -- output driver metapack ii xserver-xorg-video-apm 1:1.2.1-1 X.Org X server -- APM display driver ii xserver-xorg-video-ark 1:0.7.1-1 X.Org X server -- ark display driver ii xserver-xorg-video-ati 1:6.12.2-0ubuntu1~xup~1 X.Org X server -- ATI display driver wrapper ii xserver-xorg-video-chips 1:1.2.1-1 X.Org X server -- Chips display driver ii xserver-xorg-video-cirrus 1:1.2.1-3 X.Org X server -- Cirrus display driver ii xserver-xorg-video-fbdev 1:0.4.0-3 X.Org X server -- fbdev display driver ii xserver-xorg-video-geode 2.11.1-1 X.Org server -- Geode GX2/LX display driver ii xserver-xorg-video-i128 1:1.3.1-2ubuntu1 X.Org X server -- i128 display driver ii xserver-xorg-video-i740 1:1.2.0-2 X.Org X server -- i740 display driver ii xserver-xorg-video-intel 2:2.7.1-0ubuntu1~xup~1 X.Org X server -- Intel i8xx, i9xx display d ii xserver-xorg-video-mach64 6.8.0-3 X.Org X server -- ATI Mach64 display driver ii xserver-xorg-video-mga 1:1.4.9.dfsg-3 X.Org X server -- MGA display driver ii xserver-xorg-video-neomagic 1:1.2.2-1 X.Org X server -- Neomagic display driver ii xserver-xorg-video-nv 1:2.1.13-1ubuntu1~xup~1 X.Org X server -- NV display driver ii xserver-xorg-video-openchrome 1:0.2.903+svn741-1build1 X.Org X server -- VIA display driver ii xserver-xorg-video-r128 6.8.0+git20090201.08d56c88-1 X.Org X server -- ATI r128 display driver ii xserver-xorg-video-radeon 1:6.12.2-0ubuntu1~xup~1 X.Org X server -- ATI Radeon display driver ii xserver-xorg-video-rendition 1:4.2.0.dfsg.1-2ubuntu1 X.Org X server -- Rendition display driver ii xserver-xorg-video-s3 1:0.6.1-1 X.Org X server -- legacy S3 display driver ii xserver-xorg-video-s3virge 1:1.10.2-1 X.Org X server -- S3 ViRGE display driver ii xserver-xorg-video-savage 1:2.2.1-4ubuntu2 X.Org X server -- Savage display driver ii xserver-xorg-video-siliconmotion 1:1.7.0-1 X.Org X server -- SiliconMotion display driv ii xserver-xorg-video-sis 1:0.10.1-1 X.Org X server -- SiS display driver ii xserver-xorg-video-sisusb 1:0.9.1-1build1 X.Org X server -- SiS USB display driver ii xserver-xorg-video-tdfx 1:1.4.0-2 X.Org X server -- tdfx display driver ii xserver-xorg-video-trident 1:1.3.0-1ubuntu1 X.Org X server -- Trident display driver ii xserver-xorg-video-tseng 1:1.2.0-1ubuntu1 X.Org X server -- Tseng display driver ii xserver-xorg-video-v4l 1:0.2.0-1ubuntu5 X.Org X server -- Video 4 Linux display driv ii xserver-xorg-video-vesa 1:2.0.0-1ubuntu6 X.Org X server -- VESA display driver ii xserver-xorg-video-vmware 1:10.16.5-2 X.Org X server -- VMware display driver ii xserver-xorg-video-voodoo 1:1.2.0-1ubuntu1 X.Org X server -- Voodoo display driver