Corrupted display with Fedora 7 test 4 live, Intel 965 chipset and wide monitor

[Davide Bolcioni]

Greetings,
I tried the Fedora 7 test 4 KDE live CD on a workstation with

00:02.0 VGA compatible controller: Intel Corporation 82Q963/Q965 Integrated 
Graphics Controller (rev 02)

and a

(II) I810(0): Monitor name: BenQ FP202W

resulting in a visually corrupted display. Taking a screenshot shows no 
corruption, so I guess the problem is with the display timings: the display 
is skewed to the right, with a large blank area on the left, and "ghosts" of 
the graphics appear overlapped a few pixels to the right and down of the 
original. The live CD was i386 and the CPU is x86_64, I am in the process of 
downloading the x86_64 live CD to see if it makes any difference.

Under Fedora 6, the display shows no such corruption, although it works at 
1024x768 instead of at aspect-correct resolutions. Which is the appropriate 
component in Bugzilla for this, the server or the i810 driver (which I guess 
includes the intel driver) ?

Thank you for your consideration,
Davide Bolcioni

[Joachim Frieben]

> Greetings,
> I tried the Fedora 7 test 4 KDE live CD on a workstation with
>
> 00:02.0 VGA compatible controller: Intel Corporation 82Q963/Q965
> Integrated 
> Graphics Controller (rev 02)
>
> and a
>
> (II) I810(0): Monitor name: BenQ FP202W
>
> resulting in a visually corrupted display.

Try to set the driver in "xorg.conf" from "i810" to "intel". The latter works very well now with the 965Q integrated graphics. Occasionally, I encounter a horizontally compressed image with black borders above and below the picture in conjunction with a 19" monitor having 1280x1024 pixels. Resetting the "X" server helps in this case.
A 1920x1200 wide screen monitor gets detected and set up correctly in my case.

[Rahul Sundaram]

Davide Bolcioni wrote:
> Greetings,
> I tried the Fedora 7 test 4 KDE live CD on a workstation with
>
> 00:02.0 VGA compatible controller: Intel Corporation 82Q963/Q965 Integrated 
> Graphics Controller (rev 02)
>
> and a
>
> (II) I810(0): Monitor name: BenQ FP202W
>
> resulting in a visually corrupted display. Taking a screenshot shows no 
> corruption, so I guess the problem is with the display timings: the display 
> is skewed to the right, with a large blank area on the left, and "ghosts" of 
> the graphics appear overlapped a few pixels to the right and down of the 
> original. The live CD was i386 and the CPU is x86_64, I am in the process of 
> downloading the x86_64 live CD to see if it makes any difference.
>
> Under Fedora 6, the display shows no such corruption, although it works at 
> 1024x768 instead of at aspect-correct resolutions. Which is the appropriate 
> component in Bugzilla for this, the server or the i810 driver (which I guess 
> includes the intel driver) ?

I would guess the driver. If it's not it can always be reassigned. So go 
ahead and file it with all the above information and logs. Thank you for 
testing and providing feedback.

Rahul

[Tom London]

On 5/2/07, Davide Bolcioni  wrote:
> Greetings,
> I tried the Fedora 7 test 4 KDE live CD on a workstation with
>
> 00:02.0 VGA compatible controller: Intel Corporation 82Q963/Q965 Integrated
> Graphics Controller (rev 02)
>
> and a
>
> (II) I810(0): Monitor name: BenQ FP202W
>
> resulting in a visually corrupted display. Taking a screenshot shows no
> corruption, so I guess the problem is with the display timings: the display
> is skewed to the right, with a large blank area on the left, and "ghosts" of
> the graphics appear overlapped a few pixels to the right and down of the
> original. The live CD was i386 and the CPU is x86_64, I am in the process of
> downloading the x86_64 live CD to see if it makes any difference.
>
> Under Fedora 6, the display shows no such corruption, although it works at
> 1024x768 instead of at aspect-correct resolutions. Which is the appropriate
> component in Bugzilla for this, the server or the i810 driver (which I guess
> includes the intel driver) ?
>
> Thank you for your consideration,
> Davide Bolcioni
> --

Try running 'xrandr --rate 60' and see if that fixes things.

See BZ: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=236414

tom

[Davide Bolcioni]

On Wednesday 02 May 2007 15:22:17 Tom London wrote:
> On 5/2/07, Davide Bolcioni  wrote:
> > Greetings,
> > I tried the Fedora 7 test 4 KDE live CD on a workstation with
> >
> > 00:02.0 VGA compatible controller: Intel Corporation 82Q963/Q965
> > Integrated Graphics Controller (rev 02)
> >
> > and a
> >
> > (II) I810(0): Monitor name: BenQ FP202W
> >
> > resulting in a visually corrupted display. Taking a screenshot shows no
> > corruption, so I guess the problem is with the display timings: the
> > display is skewed to the right, with a large blank area on the left, and
> > "ghosts" of the graphics appear overlapped a few pixels to the right and
> > down of the original. The live CD was i386 and the CPU is x86_64, I am in
> > the process of downloading the x86_64 live CD to see if it makes any
> > difference.
> >
> > Under Fedora 6, the display shows no such corruption, although it works
> > at 1024x768 instead of at aspect-correct resolutions. Which is the
> > appropriate component in Bugzilla for this, the server or the i810 driver
> > (which I guess includes the intel driver) ?
> >
> > Thank you for your consideration,
> > Davide Bolcioni
> > --
>
> Try running 'xrandr --rate 60' and see if that fixes things.

To get things fixed, I had to (a) force the monitor to auto-adjust, which 
caused the large blank area to the left to go away, and (b) use xrandr to 
remove the ghosting effect.
> See BZ: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=236414

I'll add further comments and logs there.

Thank you for your consideration,
Davide Bolcioni