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Re: Etch: blank (black) screen, Xorg is running, modes are Ok



Joao Carlos de Lima Roscoe <joao.roscoe@magnetimarelli.com.br>:
> Florian Kulzer wrote:
> >On Tue, Jul 18, 2006 at 12:32:10 -0300, Joao Carlos de Lima Roscoe wrote:
> >>
> >>I've got a new plain install of etch which is running ok, with Xorg/kdm/kde.
> >>
> >>The modes are ok: I have only four resolutions (1280x1024, 1024x768, 
> >>800x600 and 640x480) and I can see all of them right after a boot, by 
> >>cycling the modes with ctrl-alt-plus and ctrl-alt-minus.
> >>
> >>However, if Xorg is restarted for any reason (ctrl-alt-backspace, 
> >>logoff, telinit 1 followed by ctrl-D, /etc/init.d/kdm stop followed by 
> >>/etc/init.d/kdm start, etc.) it *does* run (no errors in the console), 
> >>shows in "#ps -eal <return>" output and I can even (blindly) login 
> >>successfully, but the screen remains black.
> >>
> >>Also (this is interesting), the same happens if I switch to a console 
> >>and then back to X (ctrl-alt-F1 folowed by ctrl-alt-F7).
> >
> >We need to know which graphics card you are using and which driver.
> >
> >Post the output of the following two commands:
> >lspci | egrep -i 'vga|display|graphic'
> 
>  nip2024:~> lspci | egrep -i 'vga|display|graphic'
>  00:02.0 VGA compatible controller: Intel Corporation 
>  82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device (rev 01)
> 
> >awk '/Section "Device"/,/EndSection/' /etc/X11/xorg.conf
> 
>  nip2024:~> awk '/Section "Device"/,/EndSection/' /etc/X11/xorg.conf
>  Section "Device"
>          Identifier      "Generic Video Card"
>          Driver          "vesa"
>  EndSection
> 
>  The xorg.conf file was generated/placed by the install procedure.
>  Have just tried to swith to the i810 driver. The behaviour is the same.


dpkg-reconfigure xserver-xorg

Tell it to use i810, and play with Bit Per Pixel depths.  This old
Compaq of mine freaks out if I use greater than 16 bpp.  At 16, it's
perfectly stable.

0000:00:00.0 Host bridge: Intel Corp. 82810E DC-133 GMCH \
              [Graphics Memory Controller Hub] (rev 03)
0000:00:01.0 VGA compatible controller: Intel Corp. 82810E \
              DC-133 CGC [Chipset Graphics Controller] (rev 03)

Only four Mb video RAM, but it works.

Section "Device"
        Identifier      "i810"
        Driver          "i810"
        BusID           "PCI:00:01:0"
        VideoRam        4096
EndSection

Section "Monitor"
        Identifier      "CPQ:2e00"
        HorizSync       30-57
        VertRefresh     43-72
        Option          "DPMS"
EndSection

That's a Compaq 171FS 15" monitor.


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