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Bug#481036: xserver-xorg-video-intel: blank or rapidly flickering display



On 2009-06-13 08:57:20 +0200, Brice Goglin wrote:
> On Tue, May 13, 2008 at 01:03:41PM +0200, Peter J. Holzer wrote:
> > Package: xserver-xorg-video-intel
> > Version: 2:2.2.1-2
> > Severity: important
> > 
> >  Display: Eizo S2431W TFT display with 1920x1200 resolution connected
> >      via DVI cable.
> >  Graphics Chipset: Intel Corporation 82865G Integrated Graphics
> >      Controller (rev 02)
> > 
> > With xserver-xorg-video-intel 2.1.0 this worked fine (except that the
> > timing was slightly off and the display reported 1202 vertical lines -
> > easily corrected with xrandr). After the upgrade to 2.2.1 the login
> > screen of gdm is not visible - the display is flickering very rapidly,
> > showing whitish clouds (which are probably an optical illusion induced by
> > the flickering). The display reports 1920x1200 at 60 Hz. If I start the
> > X server from the command line, the display is completely black, not
> > even the mouse cursor is visible. Again, the display thinks that the
> > signal is ok. I can switch between the text and graphics display, so the
> > X server hasn't crashed.
> 
> Does this still happen with latest intel driver from unstable    
> or experimental?

Yes. 

I tried xserver-xorg-video-intel 2:2.7.1-1 from unstable and
xserver-xorg-video-intel 2:2.7.99.901-2 from experimental (both with
only the necessary dependencies resolved, which means xserver-xorg
1:7.4+3 and xserver-xorg-core 2:1.6.1.901-3 in both cases) and the
problem stays the same.

The workaround of using xrandr to set the correct polarity in
/etc/gdm/Init/Default still works fine. 

I replaced that PC a few weeks ago with a newer one. It is still on my
desk, but normally connected to a different monitor (and turned off most
of the time), but not for very much longer. So I won't be able to do
more tests - as far as I'm concerned, the bug can be closed.

The new PC has a newer Intel chipset (Q45/Q43), and the monitor works
fine on this PC with a stock Lenny installation. So it isn't just the
monitor, but the combination of monitor and chipset (and driver).

	hp

-- 
   _  | Peter J. Holzer    | Openmoko has already embedded
|_|_) | Sysadmin WSR       | voting system.
| |   | hjp@hjp.at         | Named "If you want it -- write it"
__/   | http://www.hjp.at/ |  -- Ilja O. on community@lists.openmoko.org

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