On Sun, 23 Jun 2002, Jason Craddock wrote: Can someone please unsubscribe Jason here, so we don't receive a vacation bounce every time someone posts a message? It would be much appreciated. I've got 12 or so vacation messages in my xpert folder currently in 2-3 days.
TTYL >Date: Sun, 23 Jun 2002 17:32:07 -0600 >From: Jason Craddock <[EMAIL PROTECTED]> >To: [EMAIL PROTECTED] >Content-Type: text/plain; charset=ISO-8859-1 >List-Id: General X Discussion <xpert.XFree86.Org> >Subject: Re: Xpert digest, Vol 1 #1943 - 1 msg (OUT OF THE OFFICE) > >This message has been automatically generated. > >Jason will be out of the office from June 24th through July 1st. >If you need immediate assistance please contact Alisa Ott at >[EMAIL PROTECTED] or by calling 801-225-6080. > >Thank you, >Jason Craddock > >>>> "[EMAIL PROTECTED]" 06/23/02 17:25 >>> > >Send Xpert mailing list submissions to > [EMAIL PROTECTED] > >To subscribe or unsubscribe via the World Wide Web, visit > http://XFree86.Org/mailman/listinfo/xpert >or, via email, send a message with subject or body 'help' to > [EMAIL PROTECTED] > >You can reach the person managing the list at > [EMAIL PROTECTED] > >When replying, please edit your Subject line so it is more specific >than "Re: Contents of Xpert digest..." > > >Today's Topics: > > 1. Re: Xpert digest, Vol 1 #1942 - 3 msgs (OUT OF THE OFFICE) (Jason Craddock) > >--__--__-- > >Message: 1 >Date: Sun, 23 Jun 2002 16:51:45 -0600 >From: "Jason Craddock" <[EMAIL PROTECTED]> >To: <[EMAIL PROTECTED]> >Subject: [Xpert]Re: Xpert digest, Vol 1 #1942 - 3 msgs (OUT OF THE OFFICE) >Reply-To: [EMAIL PROTECTED] > >This message has been automatically generated. > >Jason will be out of the office from June 24th through July 1st. >If you need immediate assistance please contact Alisa Ott at >[EMAIL PROTECTED] or by calling 801-225-6080. > >Thank you, >Jason Craddock > >>>> "[EMAIL PROTECTED]" 06/23/02 16:45 >>> > >Send Xpert mailing list submissions to > [EMAIL PROTECTED] > >To subscribe or unsubscribe via the World Wide Web, visit > http://XFree86.Org/mailman/listinfo/xpert >or, via email, send a message with subject or body 'help' to > [EMAIL PROTECTED] > >You can reach the person managing the list at > [EMAIL PROTECTED] > >When replying, please edit your Subject line so it is more specific >than "Re: Contents of Xpert digest..." > > >Today's Topics: > > 1. Re: RE VGA-Out (Michel =?ISO-8859-1?Q?D=E4nzer?=) > 2. Re: Trident bug (Egbert Eich) > 3. Re: Xpert digest, Vol 1 #1941 - 6 msgs (OUT OF THE OFFICE) (Jason Craddock) > >-- __--__-- > >Message: 1 >Subject: Re: [Xpert]RE VGA-Out >From: Michel =?ISO-8859-1?Q?D=E4nzer?= <[EMAIL PROTECTED]> >To: [EMAIL PROTECTED] >Date: 23 Jun 2002 23:59:34 +0200 >Reply-To: [EMAIL PROTECTED] > >On Fri, 2002-06-21 at 20:59, Zhicong Liang wrote: >> Thanks it works, but one more question. Where can I get the document for >> these "Option" setting for XConfigure?? > >They should be documented in the driver manpage, unfortunately the >radeon driver doesn't have one yet. (Help would be appreciated there, >hint, hint) > >The config file generated by XFree86 -configure (usually >/root/XF86Config.new) should also contain a list of all driver supported >options, but the ati driver used to always put the options for the >atimisc driver there, don't know if this has been fixed in the meantime. > > >-- >Earthling Michel D*nzer (MrCooper)/ Debian GNU/Linux (powerpc) developer >XFree86 and DRI project member / CS student, Free Software enthusiast > >-- __--__-- > >Message: 2 >Date: Sun, 23 Jun 2002 11:08:37 +0200 >From: Egbert Eich <[EMAIL PROTECTED]> >To: [EMAIL PROTECTED] >Subject: Re: [Xpert]Trident bug >Reply-To: [EMAIL PROTECTED] > >Alan Hourihane writes: > > > > Just checked, and it's still the same for the XP series. > > > >Well, then I'm out of ideas. I'd need a box with a 1400 wide display >for testing. > >Egbert. > >-- __--__-- > >Message: 3 >Date: Sun, 23 Jun 2002 16:11:41 -0600 >From: "Jason Craddock" <[EMAIL PROTECTED]> >To: <[EMAIL PROTECTED]> >Subject: [Xpert]Re: Xpert digest, Vol 1 #1941 - 6 msgs (OUT OF THE OFFICE) >Reply-To: [EMAIL PROTECTED] > >This message has been automatically generated. > >Jason will be out of the office from June 24th through July 1st. >If you need immediate assistance please contact Alisa Ott at >[EMAIL PROTECTED] or by calling 801-225-6080. > >Thank you, >Jason Craddock > >>>> "[EMAIL PROTECTED]" 06/23/02 16:05 >>> > >Send Xpert mailing list submissions to > [EMAIL PROTECTED] > >To subscribe or unsubscribe via the World Wide Web, visit > http://XFree86.Org/mailman/listinfo/xpert >or, via email, send a message with subject or body 'help' to > [EMAIL PROTECTED] > >You can reach the person managing the list at > [EMAIL PROTECTED] > >When replying, please edit your Subject line so it is more specific >than "Re: Contents of Xpert digest..." > > >Today's Topics: > > 1. Re: Xpert digest, Vol 1 #1940 - 8 msgs (OUT OF THE OFFICE) (Jason Craddock) > 2. Compaq Presario 2800 (info @ saudiabm) > 3. Re: Re: 10-bits per colour (Detlef Grittner) > 4. Re: Re: 10-bits per colour ([EMAIL PROTECTED]) > 5. Re: Re: 10-bits per colour ([EMAIL PROTECTED]) > 6. Re: Help about woking of X-server (Michel =?ISO-8859-1?Q?D=E4nzer?=) > >-- __--__-- > >Message: 1 >Date: Sun, 23 Jun 2002 12:51:48 -0600 >From: "Jason Craddock" <[EMAIL PROTECTED]> >To: <[EMAIL PROTECTED]> >Subject: [Xpert]Re: Xpert digest, Vol 1 #1940 - 8 msgs (OUT OF THE OFFICE) >Reply-To: [EMAIL PROTECTED] > >This message has been automatically generated. > >Jason will be out of the office from June 24th through July 1st. >If you need immediate assistance please contact Alisa Ott at >[EMAIL PROTECTED] or by calling 801-225-6080. > >Thank you, >Jason Craddock > >>>> "[EMAIL PROTECTED]" 06/23/02 13:00 >>> > >Send Xpert mailing list submissions to > [EMAIL PROTECTED] > >To subscribe or unsubscribe via the World Wide Web, visit > http://XFree86.Org/mailman/listinfo/xpert >or, via email, send a message with subject or body 'help' to > [EMAIL PROTECTED] > >You can reach the person managing the list at > [EMAIL PROTECTED] > >When replying, please edit your Subject line so it is more specific >than "Re: Contents of Xpert digest..." > > >Today's Topics: > > 1. Radeon 7500 TV out works partially... (Nils Philippsen) > 2. Re: Trident bug (Egbert Eich) > 3. Re: is ATI Radeon 7000 Video w/ 64MB supported with xfree86 for > redhat Linux 7.1 (Mike A. Harris) > 4. Re: Trident 9660 Xv bug? (Alan Hourihane) > 5. Re: Radeon 7500 QW and sgi 1600sw with MLA (Michel =?ISO-8859-1?Q?D=E4nzer?=) > 6. Re: Trident bug (kiss the sun and walk on air) > 7. Re: Re: 10-bits per colour ([EMAIL PROTECTED]) > >-- __--__-- > >Message: 1 >From: Nils Philippsen <[EMAIL PROTECTED]> >To: [EMAIL PROTECTED] >Date: 23 Jun 2002 09:42:38 +0200 >Subject: [Xpert]Radeon 7500 TV out works partially... >Reply-To: [EMAIL PROTECTED] > > >--=-oXlCRW3t8eTIaatvCxrl >Content-Type: text/plain; charset=ISO-8859-1 >Content-Transfer-Encoding: quoted-printable > >... well, for the 80x25 text console anyway when enabling TV out with >atitvout. > >I have spent the better part of yesterday afternoon to come up with a >modeline that would display my screen to the TV and got as far as having >a screen with proper vsync, i.e. the lines didn't run through, stayed at >the places they were. AFAICS the hsync isn't working, because the >individual lines are "too short" and each one is offset in relation to >the preceding line. > >I got these best results with NTSC modes even though my TV is really a >PAL one (that only happens to display NTSC as well if I guess >correctly). This seems consistent with the text console showing properly >as it's got 60Hz vsync also. > >Now my maybe uninformed idea is, should I get hold of a modeline with >the same parameters as the 80x25@60Hz text console, I should get a valid >picture on the TV. I tried to get the necessary information to do this >yesterday but to no avail, so: Does anyone know a modeline that >resembles the text console? Or pursuing another direction: I know that >there's some Windows tool which tells you the modeline for the currently >set graphics mode (I don't know its URL at the moment, does anyone >else?), can anyone with Windows run it when the TV out is working? > >Ah yes, other details: Red Hat Linux 7.3, packaged XFree86-4.2.0-8, >atitvout-0.2b > >TIA, >Nils >--=20 > Nils Philippsen / Berliner Stra=DFe 39 / D-71229 Leonberg // >+49.7152.209647 >[EMAIL PROTECTED] / [EMAIL PROTECTED] / >[EMAIL PROTECTED] > Ever noticed that common sense isn't really all that common? > >--=-oXlCRW3t8eTIaatvCxrl >Content-Type: application/pgp-signature; name=signature.asc >Content-Description: This is a digitally signed message part > >-----BEGIN PGP SIGNATURE----- >Version: GnuPG v1.0.6 (GNU/Linux) >Comment: For info see http://www.gnupg.org > >iD8DBQA9FXvuR9ibZWlRMBERAsKfAJ9dEpqQsJZc01kfNgtbz53nWplCZQCgkbdI >b+AoNSBCWD/nD6kPx99Zjeo= >=DGw6 >-----END PGP SIGNATURE----- > >--=-oXlCRW3t8eTIaatvCxrl-- > > >-- __--__-- > >Message: 2 >Date: Sun, 23 Jun 2002 10:19:47 +0200 >From: Egbert Eich <[EMAIL PROTECTED]> >To: [EMAIL PROTECTED] >Subject: Re: [Xpert]Trident bug >Reply-To: [EMAIL PROTECTED] > >kiss the sun and walk on air writes: > > > > Agreed. A positive value exacerbates the the problem. The ability to > > go farther in the negative direction is needed to find the best value. > > > >OK. Well like I've said already. I added this using some older manuals >taking some educated guesses. > >Egbert. > >-- __--__-- > >Message: 3 >Date: Sun, 23 Jun 2002 06:12:20 -0400 (EDT) >From: "Mike A. Harris" <[EMAIL PROTECTED]> >To: [EMAIL PROTECTED] >Organization: Red Hat Inc. >Subject: [Xpert]Re: is ATI Radeon 7000 Video w/ 64MB supported with xfree86 for > redhat Linux 7.1 >Reply-To: [EMAIL PROTECTED] > >On Sun, 23 Jun 2002, Walter Logeman wrote: > >>Date: Sun, 23 Jun 2002 15:35:19 +1200 >>From: Walter Logeman <[EMAIL PROTECTED]> >>To: [EMAIL PROTECTED] >>Content-Type: text/plain; charset=us-ascii >>List-Id: General X Discussion <xpert.XFree86.Org> >>Subject: Re: is ATI Radeon 7000 Video w/ 64MB supported with xfree86 for >> redhat Linux 7.1 >> >> >>Dr Andrew C Aitchison, >> >> >>> IIRC xf86config is obsolete in 4.2, and should have been removed. >>> >>> Try configuring with either >>> X -configure >>> or >>> xf86cfg >>> instead. >> >> >>Really? I have been trying to get Mandrake 8.2 running on my >>Dell i8100 trying all sorts of configuration of >>/etc/X11/XF86config-4 >> >>They make a difference (eg without an Option "noaccel" the whole >>thing crashes the screen.) But i cant get it to use my ATI >>Radeon card well at all. Am i configuring the wrong file? > >Red Hat Linux 7.1 comes with XFree86 4.0.3 which doesn't support >this card. The latest update for 7.1 is XFree86 4.1.0 which does >support the Radeon VE which allegedly the Radeon 7000 is. > >However I am unaware of what specific differences if any that the >Radeon 7000 may have from the VE. Since the Radeon 7000 came out >after 4.1.0 came out, it isn't "officially" supported but IMHO it >should work just fine. I've not received any bug reports from >Radeon 7000 users yet. > >I do have a Radeon VE, and it works perfectly however. > >Hope this helps. > > >-- >Mike A. Harris Shipping/mailing address: >OS Systems Engineer 190 Pittsburgh Ave., Sault Ste. Marie, >XFree86 maintainer Ontario, Canada, P6C 5B3 >Red Hat Inc. >http://www.redhat.com ftp://people.redhat.com/mharris > > >-- __--__-- > >Message: 4 >Date: Sun, 23 Jun 2002 09:06:31 +0100 >From: Alan Hourihane <[EMAIL PROTECTED]> >To: [EMAIL PROTECTED] >Subject: Re: [Xpert]Trident 9660 Xv bug? >Reply-To: [EMAIL PROTECTED] > >Get the later driver from http://www.xfree86.org/~alanh > >It fixes this problem. > >Alan. > >On Sat, Jun 22, 2002 at 11:15:15 -0500, David D. Hagood wrote: >> I believe there may be a bug in the XFree86 4.2 Xv drivers for Trident >> 9660 chips. I have a laptop with a Trident 9660 graphics controller, and >> when I try to run Xine using Xv, this is what I get: >> >> xine menace_480.mov >> This is xine (X11 gui) - a free video player v0.9.11 >> (c) 2000-2002 by G. Bartsch and the xine project team. >> Built with xine library 0.9.11 [Sat 22 Jun 2002 20:14:54]-[gcc version >> 2.96 20000731 (Red Hat Linux 7.1 2.96-98)]-[Linux 2.4.18-xfs i586]. >> Found xine library version: 0.9.11 (0.9.11cvs). >> XServer Vendor: The XFree86 Project, Inc. Release: 40200000, >> Protocol Version: 11, Revision: 0, >> Available Screen(s): 1, using 0 >> Depth: 16. >> tvmode: cannot connect to nvtvd - no TV mode switching available >> Display is not using Xinerama. >> tvmode: not connected to nvtvd for switching >> video_out_xv: using Xv port 55 from adaptor Trident Backend Scaler for >> hardware colorspace conversion and scaling. >> video_out_xv: port attribute XV_COLORKEY value is 0 >> X Error of failed request: BadMatch (invalid parameter attributes) >> Major opcode of failed request: 141 (XVideo) >> Minor opcode of failed request: 14 () >> Serial number of failed request: 1110 >> Current serial number in output stream: 1110 >> >> I beleive the bug to be in X, rather than xine, because after I've done >> this, any attempt to access the Xv system gives an error: >> >> >> [wowbaggr@wanderer animations.2]$ xvinfo >> X-Video Extension version 2.2 >> screen #0 >> Adaptor #0: "Trident Backend Scaler" >> number of ports: 1 >> port base: 55 >> operations supported: PutImage >> supported visuals: >> depth 16, visualID 0x23 >> depth 16, visualID 0x24 >> number of attributes: 6 >> "XV_COLORKEY" (range 0 to 16777215) >> client settable attribute >> client gettable attribute (current value is 0) >> "XV_SATURATION" (range 0 to 187) >> client settable attribute >> X Error of failed request: BadMatch (invalid parameter attributes) >> Major opcode of failed request: 141 (XVideo) >> Minor opcode of failed request: 14 () >> Serial number of failed request: 14 >> Current serial number in output stream: 14 >> client gettable attribute[wowbaggr@wanderer animations.2]$ >> [wowbaggr@wanderer animations.2]$ >> >> For reference, here's what's on the bus: >> >> >> lspci >> 00:00.0 Host bridge: Silicon Integrated Systems [SiS] 85C501/2 >> 00:01.0 ISA bridge: Silicon Integrated Systems [SiS] 85C503/5513 (rev 01) >> 00:01.1 IDE interface: Silicon Integrated Systems [SiS] 85C601 (rev 01) >> 00:06.0 VGA compatible controller: Trident Microsystems TGUI >> 9660/968x/968x (rev d3) >> 00:0d.0 PCMCIA bridge: Omega Micro Inc. 82C092G (rev 02) >> 00:0e.0 PCMCIA bridge: Omega Micro Inc. 82C092G (rev 02) >> >> >> This is with the binaries available from XFree86.org - not a CVS pull. >> >> Has anybody else seen this? Is there any other info I can provide? >> >> _______________________________________________ >> Xpert mailing list >> [EMAIL PROTECTED] >> http://XFree86.Org/mailman/listinfo/xpert > >-- __--__-- > >Message: 5 >Subject: Re: [Xpert]Radeon 7500 QW and sgi 1600sw with MLA >From: Michel =?ISO-8859-1?Q?D=E4nzer?= <[EMAIL PROTECTED]> >To: [EMAIL PROTECTED] >Date: 23 Jun 2002 15:38:36 +0200 >Reply-To: [EMAIL PROTECTED] > >On Thu, 2002-06-20 at 21:25, Nate Pearlstein wrote: >> Hi, >> >> Well, I've recently upgrade to RH7.3 + xfs1.1, xfree86 4.2, and also >> upgraded to a Radeon 7500 QW AGP from a Radeon VE QYAGP. >> >> I've noticed that the performance is much better and that it also >> claims, in the xfree86 log that dpms is on as opposed to rh7.1; xfree86 >> 4.1which complained. I use xinerama and so now at least my 21" crt does >> actually go into powersave mode and xfree86 does suspend processing of >> the screensaver. However, the 1600sw in digital mode doesn't go into >> power saving; it goes dark but the backlight is still on. I believe the >> radeon driver classifies the 1600sw as a DFP, Primary Display == Type >> 3, as opposed to CRT or LCD. Does Radeon 7500 xf 4.2 actually do dpms >> for DFP? > >I don't think so, current CVS should though. > > >-- >Earthling Michel D*nzer (MrCooper)/ Debian GNU/Linux (powerpc) developer >XFree86 and DRI project member / CS student, Free Software enthusiast > >-- __--__-- > >Message: 6 >Date: Sun, 23 Jun 2002 09:46:46 -0400 >From: kiss the sun and walk on air <[EMAIL PROTECTED]> >To: [EMAIL PROTECTED] >Subject: Re: [Xpert]Trident bug >Reply-To: [EMAIL PROTECTED] > > >--ReaqsoxgOBHFXBhH >Content-Type: text/plain; charset=us-ascii >Content-Disposition: inline >Content-Transfer-Encoding: quoted-printable > >On Sun, Jun 23, 2002 at 10:19:47AM +0200, Egbert Eich wrote: >> kiss the sun and walk on air writes: >> >=20 >> > Agreed. A positive value exacerbates the the problem. The ability to >> > go farther in the negative direction is needed to find the best value. >>=20 >> OK. Well like I've said already. I added this using some older manuals >> taking some educated guesses. > >Thanks for trying :) Perhaps we can try pushing the value beyond the >spec? Or is there possibly something in the modeline that could be >tweaked? > >I'm just trying to help brainstorm. Before I installed linux on this >machine windows 2000 had a perfect 1400x1050 display, so its possible, >somehow. > >Thanks for all your effort. >-peter > >--=20 >(peter.royal|osi)@pobox.com - http://fotap.org/~osi >jabber/ [EMAIL PROTECTED] - icq/ 153025 - aim/ osifx - yahoo/ osi_fx >your brain on life - http://fotap.org - incubating > >--ReaqsoxgOBHFXBhH >Content-Type: application/pgp-signature >Content-Disposition: inline > >-----BEGIN PGP SIGNATURE----- >Version: GnuPG v1.0.7 (GNU/Linux) > >iD8DBQE9FdFGhxNyr2g6PGURAtsLAJ9lPjjwHdJyoEiKgJ8GwV9xhYpJjwCeIlE2 >i4ejhjiCVaTXX4gI27bkUjM= >=oH9s >-----END PGP SIGNATURE----- > >--ReaqsoxgOBHFXBhH-- > >-- __--__-- > >Message: 7 >Date: Sun, 23 Jun 2002 13:09:15 -0400 (EDT) >From: [EMAIL PROTECTED] >Subject: Re: [Xpert]Re: 10-bits per colour >To: [EMAIL PROTECTED] >Reply-To: [EMAIL PROTECTED] > >On 21 Jun, Dr Andrew C Aitchison wrote: >> On Thu, 20 Jun 2002, Christoph Koulen wrote: >>> The delimiting factor, I agree, would be the human eye! I wonder, if it >>> is capable of distinguishing between 1024 shades of a primary color? > >Yes it is. There is scientific work on the eye-brain vision system and >one of the results is a clear answer yes. At this level of detail you >must also be precise about the meaning of the word "distinguish". I've >experienced several definitions of it: > > 1) Able to differentiate two halves of a split circle contrast target > on a neutral background. > 2) Able to correctly identify the polarity of a 3x3 checkboard target. I.e., > correctly identify the center square as darker or lighter. > 3) Able to correctly locate a contour line at a "flat spot" in an image. > >The tests I worked with were done in grey and blue (because those are >what radiology works in). When alert and wearing glasses my vision >quits somewhere around 1500-2000 levels. In the semi-random sample of >several thousand field service engineers we found none that were below >300 levels. Most were 500 or better in the mid-greys. > >> >> Probably not, especially since there are colours too bright and too dim >> for a monitor to show. However with only 256 shades the steps between >> adjacent colors are not always even (gamma mapping can reduce this problem) >> and it isn't difficult to find single steps which are very obvious, >> especially on a gray ramp. 1024 shades makes it easer to make the steps >> even, and maybe allow all of them to be invisible. >> > >The luminance (the kind in cd/m^2) of image and environment are key >parameters in defining the number of visible levels. The key parameters >when the display covers the full field of view are the brightness of >"black" (which includes reflection of ambient lighting) and the >brightness of "white". Typically lit ordinary CRT monitors are often in >a range where the eye is limited to under 256 levels. As you mentioned, >constraining these 256 levels to be points of equal voltage to a monitor >further eliminates levels because these levels are not placed uniformly >in perceptual space. > >The natural CRT gamma curve is a fair approximation to the eye's >response, which is why CRTs have been successful. It is not perfect. >Increasing the DAC resolution to 10-bits voltage puts sufficient >adjustment into the exact positioning of luminance levels so that all of >the roughly 256 visible levels can be displayed. This is one of the >major reasons for the need for 10-bit video output resolution. Note >that a 10-bit DAC is enough. 8-bit RGB pixel storage remains sufficient >because the purpose of the 10-bit DAC is presentation using the eye's >response curve rather than the CRT's gamma curve. > >For specific examples of how this can be used, see >http://medical.nema.org/dicom/2001.html/01_14PU.PDF or Barten's book >Contrast Sensitivity of the Human Eye and Its Effects on Image Quality > >Then follow the references to track down other major researchers on this >topic. > >R Horn > > > >-- __--__-- > >_______________________________________________ >Xpert mailing list >[EMAIL PROTECTED] >http://XFree86.Org/mailman/listinfo/xpert > > >End of Xpert Digest > > >-- __--__-- > >Message: 2 >From: "info @ saudiabm" <[EMAIL PROTECTED]> >To: <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]>, > <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]>, > <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]>, > <[EMAIL PROTECTED]> >Date: Wed, 2 Jan 2002 23:03:39 +0300 >Subject: [Xpert]Compaq Presario 2800 >Reply-To: [EMAIL PROTECTED] > > >Hi all, > >I have tried to install Redhat Linux 7.2 and 7.3 w/ XFree86 4.2 onto my >Compaq Presario 2800 laptop. During the installation, I got no problem >with the screen, but after the installation, from the graphical login >screen and onwards, the screen got screwed up. There are vertical bars >cutting up the icons, fronts, and dialog boxes. My Presario 2800 uses >ATI Radeon M7 card. > >I have browse thru several newsgroup, but of no help. Can anyone please >help? > >Thanks, > > >By the way , someone tell me this solution but I don't think this is the >really solution : > > >I have an ASUS laptop with a different video card, However, I have >faced a similar problem. What happens is that, probably, anaconda (RH >installer) uses a generic SVGA server during installation. > >I have solved it by using this generic SVGA server from Xfree 3.3.6 >instead of the XFree86 4.2 driver. Sometimes (in my case, e.g.) the >driver that comes with version 4.2 is worst than the generic SVGA >driver. I use RH 7.3 as well. > >My video is silicon motion and there is a driver, named >*siliconmotion*, that comes with XFree86 4.2. However, it doesn't work. >What I do is to use the generic SVGA driver that is also included in v. >4.2 through a driver of v. 3.3.6. This may be a suggestion for you. > >You may have to change the driver. I have sent the steps I used (and >explained them in case you're new to Linux). Use them at your own risk. > >1. Check to where link /etc/X11/X points. If it is: > > X -> ../../usr/X11R6/bin/XFree86 > > than you're really using the v.4.2. Probably that's you're case. >Than: > >2. Check if you have packages: > > XFree86-SVGA3.3.6-44 > XFree86-compat-modules3.3.6-44 > > in User Interface/X Hardware Support. If not, install them. This >will install the old generic SVGA driver. I have checked in XFree86 >site (http://www.xfree86.org/4.2.0/Status6.html#6) that it works with >your card. > >3. Check if you have: > > /etc/X11/XF86Config > /etc/X11/XF86Config-4 > >4. The first file relates to the use of the SVGA server. This was most >probably generated by anaconda (type: head /etc/X11/XF86Config). Edit >this file now (vi, kedit etc). In the section *screen* you need to have >this driver: > >Section "Screen" > Driver "svga" <= ************ > Device "Silicon Motion Lynx (generic)" > Monitor "Generic Laptop Display Panel 1024x768" > DefaultColorDepth 16 > Subsection "Display" > Depth 16 > Modes "1024x768" > ViewPort 0 0 > EndSubsection >EndSection > >*Verify other aspects as keyboard, mouse and monitor configuration. >Compare with what is set in the XF86Config-4 file (this is the file >used by v. 4.2). Probably, you'll find that XF86Config file has the >configurations you have given at installation time. > >5. As root: > > $ cd /etc/X11 > $ mv X X~ > $ ln -s /usr/X11R6/bin/XF86_SVGA X > $ cd /usr/X11R6/bin > $ mv X X~ > $ ln -s XF86_SVGA X > >6. That should do. In your desktop press Ctrl + Alt + BackSpace to >restart X server. If everything went fine, you're now using the SVGA >server. > _______________________ >http://www.SaudiABM.com > _______________________ >About Islam : >http://home2.swipnet.se/~w-20479/Audio.htm >http://sultan.org > _______________________ > > >-- __--__-- > >Message: 3 >Date: Sun, 23 Jun 2002 22:01:43 +0200 >From: [EMAIL PROTECTED] (Detlef Grittner) >To: xpert <[EMAIL PROTECTED]> >Subject: Re: [Xpert]Re: 10-bits per colour >Reply-To: [EMAIL PROTECTED] > >>For specific examples of how this can be used, see >>http://medical.nema.org/dicom/2001.html/01_14PU.PDF or Barten's book >>Contrast Sensitivity of the Human Eye and Its Effects on Image Quality >> >>Then follow the references to track down other major researchers on this >>topic. >> >>R Horn > >I found the correct link at http://medical.nema.org/dicom/2001/01_14PU.PDF > >Thank you for the information. As I'm working on medical viewers people often ask me >how many gray scales are needed. >Some people even doubt that more than 8 Bit (256) gray scales are necessary. >But typical radiological images often come with 10 Bit (1024) gray scales. >If you have a display and a video card that can display distinguishable 1024 grays >that would be invaluable. > >BTW I have read that Matrox's Parhelia supports "Gigacolor" with 10 bit per color >channel. And Martox claims that you can view over 1 billion colors (it was "*ber eine >Milliarde" in German, that's one billion in American English, isn't it?). > >And Sun's XVR 1000 has a 30 bit color deep frame buffer, but that's for Sparcs only. > >My investigations in OpenGL have revealed that there is a graphics format that >supports 10 bit per color channel and 2 bit for the alpha channel, that is 32 bit >altogether. So I don't know whether that can be used for the framebuffer and how >drivers could support that. > >Detlef > > > > > > > >-- __--__-- > >Message: 4 >Date: Sun, 23 Jun 2002 17:23:16 -0400 (EDT) >From: [EMAIL PROTECTED] >Subject: Re: [Xpert]Re: 10-bits per colour >To: [EMAIL PROTECTED] >Reply-To: [EMAIL PROTECTED] > >On 23 Jun, Detlef Grittner wrote: >>>For specific examples of how this can be used, see >>>http://medical.nema.org/dicom/2001.html/01_14PU.PDF or Barten's book >>>Contrast Sensitivity of the Human Eye and Its Effects on Image Quality >>> >>>Then follow the references to track down other major researchers on this >>>topic. >>> >>>R Horn >> >> I found the correct link at http://medical.nema.org/dicom/2001/01_14PU.PDF >> >> Thank you for the information. As I'm working on medical viewers people often ask >me how many gray scales are needed. >> Some people even doubt that more than 8 Bit (256) gray scales are necessary. >> But typical radiological images often come with 10 Bit (1024) gray scales. >> If you have a display and a video card that can display distinguishable 1024 grays >that would be invaluable. > >Sorry about the typo. If you are working in medical you must also take >a look at http://www.rsna.org/IHE/tf/ihe_tf_index.shtml > >In particular, it is becoming a market necessary to comply with the >Consistent Presentation of Images (CPI) profile. At present it only >applies to greyscale images. Calibrating color monitor presentation to >comply with the greyscale standard makes a significant improvement to >the quality of a color presentation. The further work on color space >calibration remains in committee. This came up very briefly at last >weeks DICOM WG-6 meeting, mostly as a question regarding when was the >color standard going to be ready, with a response of "Don't know". One >of the issues is the weakness of the scientific literature regarding the >diagnostic requirement for color consistency. > >The minimum realistic requirement for medical work is a high quality >monitor and a 10-bit DAC. This lets you adjust the output LUT so that >you can comply with the display standard while using 8-bit data. >Assuming that there is compliance with the CPI profile, you can degrade >10-bit to 8-bit image data with a minimum loss of utility. > >There are a number of vendors for medical quality displays. These are >all quite expensive because they provide both 10-bit input and 12+bit >DAC controls so that they can both calibrate the system to comply with >the display standard and convey 10-bit image data. They also >incorporate the very high luminance required to achieve 10-bit >viewability. Unfortunately from an XFree perspective, most of the >medical vendors will not disclose the programming information for the >display controllers. > >The actual requirement for resolution depends on the imaging modality >and the purpose of viewing. For many purposes, an 8-bit display that >meets the display standard will be sufficient. For other purposes it >will not. I would never consider doing general radiographic diagnosis >of a chest with anything under 10-bit. I would never consider doing it >in without controlled ambient lighting and the very high brightness of a >radiology oriented monitor. These are the norm in any reading room. But >for ultrasound an 8-bit display with calibration and proper lighting >should suffice. > >There is also a big difference between diagnosis and other uses. > >Further, just a warning about safety regulations. The FDA regulates >medical devices under the Safe Medical Device Act. You might be an >unwitting manufacturer. The definitions of device and manufacturer are >very broad. So check whether these safety laws apply to you. It is a >very serious crime to ship a medical device without a serious effort to >comply with the laws. It is a far less serious crime to make mistakes in >compliance. The website at http://www.fda.gov/cdrh/overview.html is a >good starting point. FDA regulations include efficacy rules, and >questions about necessary display quality might be an efficacy question. > >R Horn > > >-- __--__-- > >Message: 5 >Date: Sun, 23 Jun 2002 22:50:25 +0100 >From: [EMAIL PROTECTED] >Organization: L.S.Caine Electronic Services >To: [EMAIL PROTECTED] >Subject: Re: [Xpert]Re: 10-bits per colour >Reply-To: [EMAIL PROTECTED] > >> The minimum realistic requirement for medical work is a high quality >> monitor and a 10-bit DAC. This lets you adjust the output LUT so that >> you can comply with the display standard while using 8-bit data. >> Assuming that there is compliance with the CPI profile, you can degrade >> 10-bit to 8-bit image data with a minimum loss of utility. > >The digital imaging systems that I have been linking to >provide raw 12 and 14 bit grey scale, this is then processed >to provide contrast enhancement so that medical inserts can >easily be seen even with low dosage X-ray monitoring. The >advantage is that only one ADC/DAC pair is required. Colour >is added to the processed image, when a drop to 8 bit can be >accepted. > >The x-ray systems had to be very high resolution 12 bit >before acceptable as a replacement to film in a number of >situations. > >-- >Lester Caine >----------------------------- >L.S.Caine Electronic Services > >-- __--__-- > >Message: 6 >Subject: Re: [Xpert]Help about woking of X-server >From: Michel =?ISO-8859-1?Q?D=E4nzer?= <[EMAIL PROTECTED]> >To: [EMAIL PROTECTED] >Date: 23 Jun 2002 23:51:55 +0200 >Reply-To: [EMAIL PROTECTED] > >On Wed, 2002-06-12 at 06:21, Anticipating Reply wrote: >> >> I have been stuck up with a problem of >> Xfbdev regarding the improper display of >> colors in the pictures , and have not >> got any suggestions which could resolve >> my problem form this 'Xpert' mailing list . > >I must have missed the earlier posts. Can you summarize the problem again? > >> Now I have no option but to sit and >> understand the complete working of X-windows >> to try and figure out my probelm & find a >> solution . > >Well, the first suspect would be the framebuffer device (depending on >the problem, of course). > > >-- >Earthling Michel D*nzer (MrCooper)/ Debian GNU/Linux (powerpc) developer >XFree86 and DRI project member / CS student, Free Software enthusiast > > >-- __--__-- > >_______________________________________________ >Xpert mailing list >[EMAIL PROTECTED] >http://XFree86.Org/mailman/listinfo/xpert > > >End of Xpert Digest > > > >-- __--__-- > >_______________________________________________ >Xpert mailing list >[EMAIL PROTECTED] >http://XFree86.Org/mailman/listinfo/xpert > > >End of Xpert Digest > > > >--__--__-- > >_______________________________________________ >Xpert mailing list >[EMAIL PROTECTED] >http://XFree86.Org/mailman/listinfo/xpert > > >End of Xpert Digest > >_______________________________________________ >Xpert mailing list >[EMAIL PROTECTED] >http://XFree86.Org/mailman/listinfo/xpert > -- Mike A. Harris Shipping/mailing address: OS Systems Engineer 190 Pittsburgh Ave., Sault Ste. Marie, XFree86 maintainer Ontario, Canada, P6C 5B3 Red Hat Inc. http://www.redhat.com ftp://people.redhat.com/mharris _______________________________________________ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
