[ltp] Re: T520: With or without NVIDIA-Graphic?
Andreas Siegert
linux-thinkpad@linux-thinkpad.org
Sun, 06 May 2012 09:41:09 +0200
A few more tidbits:
On 05/05/2012 08:13 AM, Axel Braun wrote:
> Acutally I noticed for a couple of times problems with external monitors:
> Apply a beamer, change resolution to 1024x768 for both screens and present.
> Fine so far.
> Problem arises then disabling the external monitor and switching back the
> resolution to 1600x900 - mostly the screen remained black, and I could not
> bring it back to life. Had to switch it off.
Ok, I only made some initial tests.
But I guess that is quite different as you have an Intel card whereas I
use nvidia.
> May this be better with a newer kernel? Current version is 3.1.10-1.9-
> desktop
Ubuntu is on 3.2...
> Sound keys work, Fn-F4 as well, but no Fn-F12 (Hibernate)
Still need to map the sound key.
Looks like FN-F12 is currently also mapped to suspend, not hibernate.
Display brightness is a PITA...
I needed to add
GRUB_CMDLINE_LINUX_DEFAULT="acpi_backlight=vendor"
in /etc/default/grub and then ran update-grub.
But that only worked until my FN-F12 experiment, after that the control
was gone again (the HUD still showed up though).
Googeling and looking at dmesg seems to indicate that there is a conflict
between ACPI and the display driver both claiming the other will handle it...
And why the hell is my /etc/resolv.conf constantly overwritten?
cheers
afx
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