[ltp] External Monitor revisited...
Daniel Jimenez
linux-thinkpad@linux-thinkpad.org
Wed, 10 Mar 2004 21:49:13 -0600
Also, the recommendations by Petr Ferschmann got my CRT on and my panel
off but still running at 50hz....
Thanks,
Daniel
Daniel Jimenez wrote:
> Hi all--
>
> I'm having some really annoying issues with my Thinkpad T41p.
>
> I'm trying to work on an external monitor. I have a number of problems
> but they go in this order.
>
> 1- When I boot up with the laptop closed, the bios, grub, and everything
> show up on the external monitor (CRT) just fine. When the framebuffer
> kicks in both monitors are black unless I hit FN+f7 on my laptop.
> Pressing FN+F7 switches to my LCD and pressing it again does nothing.
>
> My Question: How can I tell the kernel to display on the CRT when it's
> plugged in?
>
> ----------
>
> 2- Starting X, if I start X using the open source radeon driver it
> switches over to my CRT. It puts the LCD in 1400x1050 with a virtual
> desktop of 1600x1200. My CRT shows 1600x1200.
>
> This is a good thing, except that I can't see anything on the CRT until
> I start X and X runs on my CRT with 1600x1200 @ 50hz. 50hz REALLY hurts
> my eyes.
>
> I tried using xrandr to change to 75hz but I get this:
>
> Code:
> djimenez@calculon djimenez $ xrandr --size 12/1600x1200 --rate 75
> X Error of failed request: BadValue (integer parameter out of range for
> operation)
> Major opcode of failed request: 156 (RANDR)
> Minor opcode of failed request: 2 (RRSetScreenConfig)
> Value in failed request: 0x4b
> Serial number of failed request: 12
> Current serial number in output stream: 12
>
>
> My question: How I can tell X that I have an external monitor plugged in
> and to set it's refresh rate to 75 hz?
>
> My video card is an ATI Radeon Mobility 9000.
>
> Using the ATI binary drivers (fglrx) I could get nothing on my external
> monitor. Even though in fglrxconfig I specified laptop mode (which says
> it lets you switch between the two).
>
> Any tips?
>
> Thank you so much for your help,
--
Daniel Jimenez <djimenez[at]pobox[dot]com>