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[Bug 312756] Re: MASTER: support graphics card hot switch

To: ubuntu-x-swat@xxxxxxxxxxxxxxxxxxx
From: Marek Szuba <312756@xxxxxxxxxxxxxxxxxx>
Date: Tue, 15 Mar 2011 11:58:28 -0000
Reply-to: Bug 312756 <312756@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

ThinkPad T410 (Intel+nVidia graphics) here. Works with Nouveau for
nVidia and with kernel mode-setting disabled for Intel. With KMS
enabled, switching to discrete graphics hard-locks the display. Haven't
been able to use the proprietery nVidia driver for switching.

dmidecode -s system-product-name
2522WV9
# dmidecode -s system-version
ThinkPad T410
# lspci -vnnn | perl -lne 'print if /^\d+\:.+(\[\S+\:\S+\])/' | grep VGA
00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 02) (prog-if 00 [VGA controller])
01:00.0 VGA compatible controller [0300]: nVidia Corporation GT218 [NVS 3100M] [10de:0a6c] (rev a2) (prog-if 00 [VGA controller])


** Attachment added: "DSDT from Lenovo ThinkPad T410"
   https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/312756/+attachment/1909928/+files/DSDT-ThinkPad-T410.dsl

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https://bugs.launchpad.net/bugs/312756

Title:
  MASTER: support graphics card hot switch