Re: [XFree86] s3virge under 4.1.0 burns my monitor

2003-06-18 Thread Aivils . Stoss
Under XF86_SVGA I had no problems but trying XFree86 to get (some)
acceleration it all works fine until I try to change resolution. Then 3
transistors die: the final transistor, the line driver and one FET in the
source (I hope I translated this well enough for an electronics specialist
to
understand). I'm guessing it's something about timings. Probably the svga
driver waits a while before applying the new settings and the s3virge
driver
doesn't.
I only have one question: is it my monitor or is it software?

Old monitors has poorly protection against vertical refresh changes.
During mode switch small moment video adapter do not output any electric
sync signal and Your monitor die.

Aivils Stoss

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RE: [XFree86] s3virge under 4.1.0 burns my monitor

2003-06-13 Thread Wilco Holdorp / iiyama
Hi,

HorizSync 30-50
VertRefresh 47-110

The VertRefresh is not really realistic. Your DDC info shows you can do
about 75 Hz

(II) S3VIRGE(0): Supported VESA Video Modes:
(II) S3VIRGE(0): [EMAIL PROTECTED] ---
(II) S3VIRGE(0): [EMAIL PROTECTED] ---
(II) S3VIRGE(0): [EMAIL PROTECTED]
(II) S3VIRGE(0): [EMAIL PROTECTED]
(II) S3VIRGE(0): [EMAIL PROTECTED]
(II) S3VIRGE(0): [EMAIL PROTECTED] (interlaced)
(II) S3VIRGE(0): [EMAIL PROTECTED]

So set your monitor to this:
HorizSync 30-50
VertRefresh 47-75

That should keep you on the save side.

Wilco Holdorp


-Original Message-
From: Cristian Campeanu [mailto:[EMAIL PROTECTED] 
Sent: donderdag 12 juni 2003 6:13
To: [EMAIL PROTECTED]
Subject: [XFree86] s3virge under 4.1.0 burns my monitor

Hi there,

My name is Cristian Campeanu and I'm from Romania.
I own a Likom L - 403 monitor which a broke 3 times already by changing 
resolution (the usual Ctrl+Alt+-) and a S3 Trio3D. I'm running RedHat Linux 
7.2 with the 2.4.7-10 kernel and XFree 4.1.0 with the compatibility modules 
for 3.3.6.
Under XF86_SVGA I had no problems but trying XFree86 to get (some) 
acceleration it all works fine until I try to change resolution. Then 3 
transistors die: the final transistor, the line driver and one FET in the 
source (I hope I translated this well enough for an electronics specialist
to 
understand). I'm guessing it's something about timings. Probably the svga 
driver waits a while before applying the new settings and the s3virge driver

doesn't.
I only have one question: is it my monitor or is it software?
I'm attatching my config files and the logfile (I use a script to get
messages 
from 3.3.6).

Thank you for existing.
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Re: [XFree86] s3virge under 4.1.0 burns my monitor

2003-06-13 Thread Egbert Eich
Cristian Campeanu writes:
  Hi there,
  
  My name is Cristian Campeanu and I'm from Romania.
  I own a Likom L - 403 monitor which a broke 3 times already by changing 
  resolution (the usual Ctrl+Alt+-) and a S3 Trio3D. I'm running RedHat Linux 
  7.2 with the 2.4.7-10 kernel and XFree 4.1.0 with the compatibility modules 
  for 3.3.6.
  Under XF86_SVGA I had no problems but trying XFree86 to get (some) 
  acceleration it all works fine until I try to change resolution. Then 3 
  transistors die: the final transistor, the line driver and one FET in the 
  source (I hope I translated this well enough for an electronics specialist to 
  understand). I'm guessing it's something about timings. Probably the svga 
  driver waits a while before applying the new settings and the s3virge driver 
  doesn't.
  I only have one question: is it my monitor or is it software?
  I'm attatching my config files and the logfile (I use a script to get messages 
  from 3.3.6).


The problem you are seeing is quite rare and I don't recall when
somebody reported here that a monitor died when switching modes.
What surprises me most however that this happens although your 
monitor is rather new: it even has DDC support. Usually these 
monitors support multi sync and are capable of detecting if the 
sync frequencies are out of range.
All modes listed in the log which are available thru mode switching
are around 60Hz and should not cause problems on almost any monitor. 
I suppose if you set any of these modes as the startup mode you don't
 see any problems.
So the problem is most likely the mode change itself.
It is theoretically possible that during mode transition the sync
frequencies are out of range for a short while.
Unfortunately I have no idea how to debug this. 

You could try a newer version of the XFree86 as 4.1 is rather old
however I don't think that the mode setting part of the code has
changed since then.
Do you remember if it happened during any mode transition or only
during a switch between two specific modes (ie. when you switch 
from 1024x768 to 640x480)?

Egbert.

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