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Description of problem:
I have ThinkPad T430 (2349G6G) with NV Optimus. When I switch to discrete graphics I get output only from display port. Internal LVDS1 display is disconnected.
On the other hand with integrated graphics I only get LVDS1 and VGA output, no DP or DVI.
$ xrandr -q
Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 8192 x 8192
LVDS-1 disconnected (normal left inverted right x axis y axis)
VGA-1 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 459mm x 296mm
1680x1050 59.9*+
1680x945 60.0
1400x1050 59.9
1600x900 60.0
1280x1024 75.0 60.0
1440x900 75.0 59.9
1280x960 60.0
1366x768 60.0
1360x768 60.0
1280x800 74.9 59.9
1152x864 75.0
1280x768 74.9 60.0
1024x768 75.1 70.1 60.0
1024x576 60.0
832x624 74.6
800x600 72.2 75.0 60.3 56.2
848x480 60.0
640x480 72.8 75.0 66.7 60.0
720x400 70.1
hw:
00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09)
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GF108 [Quadro NVS 5400M] [10de:0def] (rev a1)
Version-Release number of selected component (if applicable):
kernel-2.6.32-340.el6.x86_64
mesa-dri-drivers-9.0-0.2.el6.x86_64
xorg-x11-server-Xorg-1.13.0-7.el6.x86_64
How reproducible:
100%
Steps to Reproduce:
1. switch to discrete graphics
# echo DDIS > /sys/kernel/debug/vgaswitcheroo/switch
2. start Xorg
Actual results:
LVDS-1 disconnected (normal left inverted right x axis y axis)
Internal Laptop screen is dead
Expected results:
Internal screen is on
Additional info:
(In reply to comment #3)
> does it work with the bios option?
No sure what you mean exactly. When I switch to discrete graphics mode (nV graphics) in BIOS a get internal screen and all the outputs (VGA included). When I switch to integrated Intel graphics I'm still limited to Internal LVDS screen ans VGA output.
> most of the new optimus laptops don't really support old style GPU switching.
What the "old style" refers to?
Comment 5RHEL Program Management
2012-12-16 06:48:32 UTC
This request was not resolved in time for the current release.
Red Hat invites you to ask your support representative to
propose this request, if still desired, for consideration in
the next release of Red Hat Enterprise Linux.
Comment 7RHEL Program Management
2013-10-14 04:39:30 UTC
This request was not resolved in time for the current release.
Red Hat invites you to ask your support representative to
propose this request, if still desired, for consideration in
the next release of Red Hat Enterprise Linux.
Red Hat Enterprise Linux 6 is in the Production 3 Phase. During the Production 3 Phase, Critical impact Security Advisories (RHSAs) and selected Urgent Priority Bug Fix Advisories (RHBAs) may be released as they become available.
The official life cycle policy can be reviewed here:
http://redhat.com/rhel/lifecycle
This issue does not meet the inclusion criteria for the Production 3 Phase and will be marked as CLOSED/WONTFIX. If this remains a critical requirement, please contact Red Hat Customer Support to request a re-evaluation of the issue, citing a clear business justification. Note that a strong business justification will be required for re-evaluation. Red Hat Customer Support can be contacted via the Red Hat Customer Portal at the following URL:
https://access.redhat.com/