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[Bug 312756] Re: support graphics card hot switch

To: ubuntu-x-swat@xxxxxxxxxxxxxxxxxxx
From: Alex Pyattaev <312756@xxxxxxxxxxxxxxxxxx>
Date: Thu, 15 Jul 2010 22:02:45 -0000
Reply-to: Bug 312756 <312756@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

Testing results:
Platform: HP TouchSmart tm2 Notebook PC 049E100000200800000120000
Hybrid graphics:
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) (prog-if 00 [VGA controller])
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc M93 [Mobility Radeon HD 4500 Series] [1002:9555] (rev ff) (prog-if ff)

Results of the off script testing: 
# ./test_off.sh 
Trying \_SB.PCI0.P0P1.VGA._OFF: failed
Trying \_SB_.PCI0.OVGA.ATPX: works!

No real effect of ATI card noticed so far, works quite well in 2D mode
on Linux built-in driver with Intel's GPU. More updates later.



** Attachment added: "DSDT data"
   http://launchpadlibrarian.net/52002046/DSDT.dsl

-- 
support graphics card hot switch
https://bugs.launchpad.net/bugs/312756
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