[ltp] X flickering problem, Mdk 7.2, TP770ED

[Brad Langhorst]

this used to happen to me under X 3.3
I suggest upgrading to 4.

Take a look at my xf86config if you want
http://www.langhorst.com/thinkpad/

brad
On Thursday 14 June 2001 07:52 pm, you wrote:
> This is getting very strange. When the TP770ED enters a very intensive CPU
> activity, the screen flashes much more frequently. Please let me know where
> could be the problem and how to fix it.
> N
>
>
>
>
> On Tue, 12 Jun 2001 11:58:51 +0000
>
> I wrote:
> > I installed  Mandrake 7.2 on the Tp770ED and the screen flickers.
> > This was not happening with Mandrake 7.1
> > With previous linux versions, I applied a manual reconfiguration to
> > /etc/X11/XF86Config and the problem disappeared.
> >
> >
> > Please could someone point me *what* does make the screen flicker?
> > Vertical/horizontal frequencies??
> >
> > With Mandrake 7.2, through Xdrakes I set the following configurations:
> > - Trident cyber 9397 (generic)
> > - 1024x768  15 bits
> >
> > but the problem is still there.
> > So tried moreover to apply these manual changes to /etc/X11/XF86Config :
> >
> > ==================================
> > Section "Monitor"
> >          Identifier      "TP770ED_LCD-1024x768"
> >          VendorName      "IBM"
> >          ModelName       "TP770Ed (14.1)"
> >          HorizSync       31.5-48.5
> >          VertRefresch    55-70
> >          Modeline        "1024x768"  60.00    1024 1032 1176 1344    768
>
> 771
>
> > 777 806
> > -hsync -vsync
> > EndSection
> >
> > Section "Device"
> >          Identifier      "TP770ED_XGA"
> >          VendorName      "IBM"
> >          BoardName       "TP770ED"
> >          Option          "accel"
> >          VideoRam        4096
> > EndSection
> >
> > Section "Screen"
> >          Driver          "SVGA"
> >          Device          "TP770ED_XGA"
> >          Monitor         "TP770ED_LCD-1024x768"
> >          DefaultColorDepth 32
> >          Subsection "Display"
> >                  Depth   32
> >                  Modes   "1024x768"
> >                  ViewPort  0 0
> >                  Virtual         1024  768
> >          EndsubSection
> > EndSection
> > =====================================
> >
> > I also tried to adjust the Vertical/Horizontal frequencies in the
> > /etc/XF86Config-4 file
> > HorizSync       31.5-48.5
> > VertRefresch    55-70
> >
> > Is there something I'm missing?
> >
> > Thanks in advance
> > Nico
>
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