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[Bug 372641] Re: xwindow crashed when system start after installed ATI drivers, on lenovo thinkpad T400 with both grahic card enabled

To: ubuntu-x-swat@xxxxxxxxxxxxxxxxxxx
From: Bryce Harrington <bryce@xxxxxxxxxxxxxxxxxxx>
Date: Sun, 17 May 2009 18:29:24 -0000
Reply-to: Bug 372641 <372641@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Description changed:

  I installed ubuntu9.04 (later I tried i386,x64,kubuntu , liveCD and DVD, and the bug remained), with my lenovo thinkpad T400 switchable graphic card enabled, os detectable yes, and all work fine. Only sometimes system use internal GPU, sometime use ATI, cause the find hardware driver sometimes report ati driver not installed, sometimes no driver detected. 
  But after I installed the restrict driver for ati, or I direct download the latest 9.4 driver from amd and install it (yeah, I tried many times, about reinstall my *bnutu tens of times) and enable it and reboot, Xwindow can't start, screen display something( sorry my english is poor I can't exactly describe it , look like screen crashed) no cli, no CTRL_ALT_F1. I also tried safe mode auto fix X, after autofix the screen turned 3 times which I think xwindow restart 3 time and remain blank screen for ever. Also safe mode cli remove fglrx*, none of them works , have to reinstall.
  Until finally, I figured out what happened, then I go to BIOS ,disable switchable graphic card, disable os detectable, It works fine.
  
  BTW, I tried Mandriva 2009.1 too, do not like ubuntu , I have to enable
  os detectable to yes to make it start to install ,otherwise it just
  remain rebooting after splash screen for ever.
+ 
+ [lspci]
+ 00:00.0 Host bridge [0600]: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub [8086:2a40] (rev 07)
+     	Subsystem: Lenovo Device [17aa:20e0]
+ 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07)
+     	Subsystem: Lenovo Device [17aa:2113]
+ 01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Mobility Radeon HD 3400 Series [1002:95c4]
+     	Subsystem: Lenovo Device [17aa:210f]

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xwindow crashed when system start after installed ATI drivers, on lenovo thinkpad T400 with both grahic card enabled
https://bugs.launchpad.net/bugs/372641
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