[ltp] External Monitor revisited...

[Petr Ferschmann]

Hello,

When I run Xserver without external monitor plugged in it run's at 60
Hz. But if you run it with external it runs at 85 Hz. But I run both
displays at same resolution. 

This is fact I didn't knew about previously.

(Just remind for users they don't know what we are talking about)

        Option          "CloneDisplay"  "on"
        Option          "CloneHSync" "120"
        Option          "CloneVRefresh" "160"
        Option          "CloneMode"     "1024x768"
        Option          "PanelOff"      "off"

V Čt, 11. 03. 2004 v 04:49, Daniel Jimenez píše:
> 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>
-- 
                                  Petr "Fers" Ferschmann

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