I'm using Mandrake 9.1 with a Hitachi CM715 monitor. There is a subtle problem with my X
display: it is slightly 'wavy.' Or you could say the text vibrates. It is not terrible
(some users don't notice it), but I'd like to fix it. I've googled and browsed HOWTOs, but
haven't quite figured this out.

I'm using the sync rates suggested by Hitachi. I've fiddled with settings in Mandrake Control
Center with no luck. MCC doesn't seem to allow you to change refresh rate or polarity; could
these be relevant?

Changing the screem dimensions and # of colors doesn't help. This problem is not evident in
console mode. This monitor did not behave this way with my old computer.

Any pointers appreciated. Thanks.

On Thu, 25 Sep 2003 18:38:01 GMT, Ignatius (ignatius@notreal.net) <> wrote:
> I'm using Mandrake 9.1 with a Hitachi CM715 monitor. There is a subtle problem with my X
> display: it is slightly 'wavy.' Or you could say the text vibrates. It is not terrible
> (some users don't notice it), but I'd like to fix it. I've googled and browsed HOWTOs, but
> haven't quite figured this out.
....
>
> Changing the screem dimensions and # of colors doesn't help. This problem is not evident in
> console mode. This monitor did not behave this way with my old computer.
>

Maybe it's EMI. try moving the computer away from the monitor. Move
anything else that might produce a magnetic field -- anything with an
electric motor or unshielded speaker.

On 25 Sep 2003 21:37:09 GMT, TCS wrote:
> On Thu, 25 Sep 2003 18:38:01 GMT, Ignatius (ignatius@notreal.net) <> wrote:
>> I'm using Mandrake 9.1 with a Hitachi CM715 monitor. There is a subtle problem with my X
>> display: it is slightly 'wavy.' Or you could say the text vibrates. It is not terrible
>> (some users don't notice it), but I'd like to fix it. I've googled and browsed HOWTOs, but
>> haven't quite figured this out.
> ...
>>
>> Changing the screem dimensions and # of colors doesn't help. This problem is not evident in
>> console mode. This monitor did not behave this way with my old computer.
>>
>
> Maybe it's EMI. try moving the computer away from the monitor. Move
> anything else that might produce a magnetic field -- anything with an
> electric motor or unshielded speaker.

Have seen moving the video cable helps.

On 25 Sep 2003 21:37:09 GMT, TCS <The.Central.Scrutinizer@p.o.b.o.x.com> wrote:
> On Thu, 25 Sep 2003 18:38:01 GMT, Ignatius (ignatius@notreal.net) <> wrote:
>> I'm using Mandrake 9.1 with a Hitachi CM715 monitor. There is a subtle problem with my X
>> display: it is slightly 'wavy.' Or you could say the text vibrates. It is not terrible
>> (some users don't notice it), but I'd like to fix it. I've googled and browsed HOWTOs, but
>> haven't quite figured this out.
> ...
>>
>> Changing the screem dimensions and # of colors doesn't help. This problem is not evident in
>> console mode. This monitor did not behave this way with my old computer.
>>
>
> Maybe it's EMI. try moving the computer away from the monitor. Move
> anything else that might produce a magnetic field -- anything with an
> electric motor or unshielded speaker.

It happens with me when a fluorescent desk lamp is too close to the
monitor.

--
Bob Parnes
rparnes@megalink.net

Bob Parnes wrote:

> It happens with me when a fluorescent desk lamp is too close to the
> monitor

.... or too many drugs/alchohol )
..
--
/// Michael J. Tobler: motorcyclist, surfer, skydiver, \\\
\\\ and author: "Inside Linux", "C++ HowTo", "C++ Unleashed" ///
\\\ http://pages.sbcglobal.net/mtobler/mjt_linux_page.html ///
Mencken and Nathan's Fifteenth Law of The Average American:
The worst actress in the company is always the manager's wife.

Thanks for all the good suggestions. Unfortunately none worked.

I've noted that the problem is exacerbated if I use the mouse to select
text, or if the HD is working hard. Any other ideas?

On Fri, 26 Sep 2003 15:39:52 GMT, Ignatius (ignatius@notreal.net)
<> wrote:
> Thanks for all the good suggestions. Unfortunately none worked.
>
> I've noted that the problem is exacerbated if I use the mouse to select
> text, or if the HD is working hard. Any other ideas?

Get a new video card.

--
Commander Spiral Pyjama Pseudo-Rhinocerous Feline Thingamajig Bill Marcum
(the First)
Ozy and Millie Name Generator http://heifong.phase.org/omname.php

On Fri, 26 Sep 2003 15:39:52 GMT, Ignatius (ignatius@notreal.net) <> wrote:
> Thanks for all the good suggestions. Unfortunately none worked.
>
> I've noted that the problem is exacerbated if I use the mouse to select
> text, or if the HD is working hard. Any other ideas?

Are you an intel 815 chipset for video?

It's a real p.o.s. and it's linux support is minimal.
Spend the fifteen dollars and get a decent video board.

TCS <The.Central.Scrutinizer@p.o.b.o.x.com> wrote:
> Are you an intel 815 chipset for video?

I'm not sure what exactly is inside, perhaps I should take a look. I got the computer without
manuals. It was running windows with a driver for 'ATI 3D RAGE PRO AGP 2X.' Mandrake
recognizes it as such, and suggests Mach 64 Utah as my X-server.

I've solved the problem, though, by downgrading to xfree 3.3.6! That made the display
rock-steady in Icewm. However, doing this prevents KDE from working. The screen goes black,
then wipes down white, back to black, wipes down white, etc. When in Icewm, I can't run
Konqueror, either. It opens a window very briefly then disappears.

If this chipset is hopeless I guess I should just buy a new card, though I'm still wondering
if I've overlooked something. Since I've now seen it work perfectly (sans KDE) I'm still
thinking the problem must be with the configuration.

On Sat, 27 Sep 2003 07:11:34 GMT, Ignatius (ignatius@notreal.net) <> wrote:
>TCS <The.Central.Scrutinizer@p.o.b.o.x.com> wrote:
>> Are you an intel 815 chipset for video?

>I'm not sure what exactly is inside, perhaps I should take a look. I got the computer without
>manuals. It was running windows with a driver for 'ATI 3D RAGE PRO AGP 2X.' Mandrake
>recognizes it as such, and suggests Mach 64 Utah as my X-server.

never mind. the ati rage pro chipset is totally different than that intel
815 that I suffered w/ @ work a few years ago.


>I've solved the problem, though, by downgrading to xfree 3.3.6! That made the display
>rock-steady in Icewm. However, doing this prevents KDE from working. The screen goes black,
>then wipes down white, back to black, wipes down white, etc. When in Icewm, I can't run
>Konqueror, either. It opens a window very briefly then disappears.

>If this chipset is hopeless I guess I should just buy a new card, though I'm still wondering
>if I've overlooked something. Since I've now seen it work perfectly (sans KDE) I'm still
>thinking the problem must be with the configuration.