This bug was filed against a series that is no longer supported and so
is being marked as Won't Fix. If this issue still exists in a supported
series, please file a new bug.
This change has been made by an automated script, maintained by the
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** Changed in: linux (Ubuntu)
If it would be possible to switch between graphics cards then consequently it
would also be possible to turn off the one you don't need. It seems like there
is a lot of effort being made for the master bug, I don't think another project
will start just for this one as this is just a subset of
** This bug is no longer a duplicate of bug 312756
support graphics card hot switch
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need to turn off extra Switchable graphics GPU
https://bugs.launchpad.net/bugs/435906
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Now in Maverick, vga_switcheroo is enabled, but the extra GPU is still
powered on by default.
As a workaround, I've added the following line to /etc/rc.local:
echo OFF /sys/kernel/debug/vgaswitcheroo/switch
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need to turn off extra Switchable graphics GPU
** Description changed:
- Some new laptops such as this Acer Travelmate 8371G (Timeline) have two
+ Some laptops such as this Acer Travelmate 8371G (Timeline) have two
graphics adapters (Intel 4500MHD and ATI HD 4330). There are two BIOS
settings: Switchable graphics and Discrete graphics.
Why is this not a duplicate of bug #312756 ?
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need to turn off extra Switchable graphics GPU
https://bugs.launchpad.net/bugs/435906
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Adam, wrt bug #312756 support graphics card hot switch:
Here in bug #435906, I'm not asking for hot switch -- what we urgently
need is just that the extra GPU be turned off. I consider this a
significant bug as these laptops are certainly not designed to power two
GPUs at a time. Further, this is
*** This bug is a duplicate of bug 312756 ***
https://bugs.launchpad.net/bugs/312756
** This bug has been marked a duplicate of bug 312756
support graphics card hot switch
--
need to turn off extra Switchable graphics GPU
https://bugs.launchpad.net/bugs/435906
You received this bug
I have an ATI graphics and integrated Intel graphics and the modes under
windows is determined by the powered mode. I can not boot into linux
from a live cd as i can not see the desktop. The welcome sound is heard
but there is no graphics. All I can see is a black screen. My laptop is
a HP
For those with G Timeline models (with discrete ATI card),
David Airlie has posted v11 of his vga-switcheroo patch:
http://people.freedesktop.org/~airlied/vgaswitcheroo/0001-vga_switcheroo-initial-implementation-v11.patch
You can use the excellent howto here:
You can possibly use the code from asus_nvidia.c in the link below that
has resume from hibernation support for the Asus UL30Vt/UL50V/UL80V:
http://linux-hybrid-graphics.blogspot.com/2009/12/solution-to-switch-
off-nvidia-card-in.html
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need to turn off extra Switchable graphics GPU
** Attachment added: AlsaDevices.txt
http://launchpadlibrarian.net/32371624/AlsaDevices.txt
** Attachment added: AplayDevices.txt
http://launchpadlibrarian.net/32371625/AplayDevices.txt
** Attachment added: BootDmesg.gz
http://launchpadlibrarian.net/32371626/BootDmesg.gz
** Attachment
I confirm this on my Travelmate 8371G. However, I constantly get over 5
hours of battery life. Without the module, 2 hours on Switchable mode
and ~3 hours on Discrete mode with Powerplay option of ATI proprietary
driver.
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need to turn off extra Switchable graphics GPU
** Changed in: linux (Ubuntu)
Status: New = Confirmed
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need to turn off extra Switchable graphics GPU
https://bugs.launchpad.net/bugs/435906
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