[ccp4bb] [Fwd: Re: [ccp4bb] Flat Screen and Stereo]
Adding the following commands to my xorg.conf file fixed my problem: Section Extensions Option Composite Disable EndSection The screen now makes an attempt to run stereo: it will draw two sets of lines and the eDimensional glasses now work. But the flickering is unbearable to look at for any length of time even though the 3D effect is noticeable. It seems that there are several possible sources of this new problem: 1) asynchrony between the glasses and the monitor refresh rate [unlikely] 2) problems due to the way flat screens adjust (not all-at-once, as pointed out to me by another respondent) 3) simply too slow of a refresh rate. ( i can try to force maximum refresh rate) I am going to tool around with numbers 1 and 3 to see if I can get a halfway decent stereo effect. If i get anything to work I will post again. In the meantime, I'll try to avoid the slightly nauseating effects of the flickering. thank you for the many (and prompt!) responses to my problem, best zach cp ---BeginMessage--- Hi Zach, I think you need to add: Section Extensions Option Composite Disable EndSection to your xorg.conf file. The driver cannot do stereo with the composite extensions enabled. Steve Zach Powers wrote: Hello, I have been having a problem getting stereo to work on the lab's new flatsceeen ( i know, i know. CRTs = much better but i think the purchaser was overcome with flatscreen lust). I am using a Dell 3007WFP (2560x 1600, refresh rate = 60hz) attached to nVidia Quadro FX 4500 graphics card with the eDimensional stereo glasses. I am using the current drivers from livna (100.14.09-2lvn7) on a Fedora7 box with the 2.6.21_1.3228 kernel. When I try to get Pymol or Coot to use stereo, no luck: Coot tells me that the hardware does not support quad buffered stereo. To the best of my knowledge I have the xorg.conf file correctly configured (see below) and I am wondering if anyone has run into these problems before or if somehow the livna driver can detect a refresh rate that is suboptimal and therefore refuse to start stereo. Perhaps there is also the issue of the kernel? I don't know, but I would appreciate any help. Below is my xorg.conf file and you can see I have 'Option Stereo' set to 3. I have fiddled around with many of the options in the xorg.conf file - basically trying every variation that i found other people had used. However, still no luck, which makes me think there may be some driver or kernel issue. Anyhow, any suggestions would be greatly appreciated (I would like to get this monitor work before falling back on a CRT - if the flicker is terrible, there will be no choice but it seems others have been using these monitors for stereo). thank you, zach charlop-powers PhD Candidate Graduate School of Biological Sciences Mount Sinai School of Medicine New York, NY ### Xorg configuration created by livna-config-display Section ServerLayout Identifier single head configuration Screen 0 Screen0 0 0 InputDeviceKeyboard0 CoreKeyboard EndSection Section Files ModulePath /usr/lib64/xorg/modules/extensions/nvidia ModulePath /usr/lib64/xorg/modules EndSection Section Module Load dbe Load extmod Load glx Load dbe Load extmod EndSection Section InputDevice Identifier Keyboard0 Driver kbd Option XkbModel pc105 Option XkbLayout us EndSection Section Monitor Identifier Monitor0 ModelNameDell 3007WFP HorizSync30.0 - 100.0 VertRefresh 56.0 - 76.0 Option dpms EndSection Section Device Identifier Videocard0 Driver nvidia Option Stereo 3 Option AllowDFPStereo 1 Option UBB True Option AddARGBGLXVisuals True Option DisableGLXRootClipping True EndSection Section Screen Identifier Screen0 Device Videocard0 MonitorMonitor0 DefaultDepth 24 SubSection Display Viewport 0 0 Depth 24 Modes2560x1600 1600x1200 1600x1024 1440x900 1400x1050 1280x1024 1280x960 1280x800 1152x864 1024x768 800x600 640x480 640x400 EndSubSection EndSection -- Steven Stayrook, Ph.D. Assistant Director Johnson Research Foundation Senior Research Investigator Department of Biochemistry and Biophysics 423 Guardian Blvd. G11 Blockley Hall University of Pennsylvania School of Medicine Philadelphia, Pa. 19104 e-mail: [EMAIL PROTECTED] Phone: 215-573-9968 fax:215-573-2503 ---End Message---
Re: [ccp4bb] Flat Screen and Stereo
Rather strangely my stereo set uses the following Option AllowDFPStereo on I look forward to hearing how you get on as all my past experience with stereo and LCD screens was less than positive Hope this helps Mike -Original Message- From: CCP4 bulletin board on behalf of James M. Vergis Sent: Fri 22/06/2007 17:10 To: CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] Flat Screen and Stereo I don't know if this will help but the NVIDIA readme says it should be a BOOLEAN after ALLOWDFPSTEREO. You have: OptionAllowDFPStereo 1 Change to:OptionAllowDFPStereo true Hope that helps. I'd be curious as to how an LCD works for stereo. Good luck, James James M. Vergis, Ph.D. University of Virginia Molecular Physiology and Biological Physics MKWEINR 438 Jordan Hall 1340 Jefferson Park Ave Charlottesville, VA 22908-0736 phone: 434-243-2730 FAX: 434-982-1616 [EMAIL PROTECTED] -Original Message- From: CCP4 bulletin board [mailto:[EMAIL PROTECTED] On Behalf Of Zach Powers Sent: Friday, June 22, 2007 11:38 AM To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] Flat Screen and Stereo Hello, I have been having a problem getting stereo to work on the lab's new flatsceeen ( i know, i know. CRTs = much better but i think the purchaser was overcome with flatscreen lust). I am using a Dell 3007WFP (2560x 1600, refresh rate = 60hz) attached to nVidia Quadro FX 4500 graphics card with the eDimensional stereo glasses. I am using the current drivers from livna (100.14.09-2lvn7) on a Fedora7 box with the 2.6.21_1.3228 kernel. When I try to get Pymol or Coot to use stereo, no luck: Coot tells me that the hardware does not support quad buffered stereo. To the best of my knowledge I have the xorg.conf file correctly configured (see below) and I am wondering if anyone has run into these problems before or if somehow the livna driver can detect a refresh rate that is suboptimal and therefore refuse to start stereo. Perhaps there is also the issue of the kernel? I don't know, but I would appreciate any help. Below is my xorg.conf file and you can see I have 'Option Stereo' set to 3. I have fiddled around with many of the options in the xorg.conf file - basically trying every variation that i found other people had used. However, still no luck, which makes me think there may be some driver or kernel issue. Anyhow, any suggestions would be greatly appreciated (I would like to get this monitor work before falling back on a CRT - if the flicker is terrible, there will be no choice but it seems others have been using these monitors for stereo). thank you, zach charlop-powers PhD Candidate Graduate School of Biological Sciences Mount Sinai School of Medicine New York, NY ### Xorg configuration created by livna-config-display Section ServerLayout Identifier single head configuration Screen 0 Screen0 0 0 InputDeviceKeyboard0 CoreKeyboard EndSection Section Files ModulePath /usr/lib64/xorg/modules/extensions/nvidia ModulePath /usr/lib64/xorg/modules EndSection Section Module Load dbe Load extmod Load glx Load dbe Load extmod EndSection Section InputDevice Identifier Keyboard0 Driver kbd Option XkbModel pc105 Option XkbLayout us EndSection Section Monitor Identifier Monitor0 ModelNameDell 3007WFP HorizSync30.0 - 100.0 VertRefresh 56.0 - 76.0 Option dpms EndSection Section Device Identifier Videocard0 Driver nvidia Option Stereo 3 Option AllowDFPStereo 1 Option UBB True Option AddARGBGLXVisuals True Option DisableGLXRootClipping True EndSection Section Screen Identifier Screen0 Device Videocard0 MonitorMonitor0 DefaultDepth 24 SubSection Display Viewport 0 0 Depth 24 Modes2560x1600 1600x1200 1600x1024 1440x900 1400x1050 1280x1024 1280x960 1280x800 1152x864 1024x768 800x600 640x480 640x400 EndSubSection EndSection DIVFONT size=1 color=grayThis e-mail and any attachments may contain confidential, copyright and or privileged material, and are for the use of the intended addressee only. If you are not the intended addressee or an authorised recipient of the addressee please notify us of receipt by returning the e-mail and do not use, copy, retain, distribute or disclose the information in or attached to the e-mail. Any opinions expressed within this e-mail are those of the individual and not necessarily of Diamond Light Source Ltd. Diamond Light Source Ltd. cannot guarantee that this e-mail or any
Re: [ccp4bb] Flat Screen and Stereo
I don't know if this will help but the NVIDIA readme says it should be a BOOLEAN after ALLOWDFPSTEREO. You have: OptionAllowDFPStereo 1 Change to:OptionAllowDFPStereo true Hope that helps. I'd be curious as to how an LCD works for stereo. Good luck, James James M. Vergis, Ph.D. University of Virginia Molecular Physiology and Biological Physics MKWEINR 438 Jordan Hall 1340 Jefferson Park Ave Charlottesville, VA 22908-0736 phone: 434-243-2730 FAX: 434-982-1616 [EMAIL PROTECTED] -Original Message- From: CCP4 bulletin board [mailto:[EMAIL PROTECTED] On Behalf Of Zach Powers Sent: Friday, June 22, 2007 11:38 AM To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] Flat Screen and Stereo Hello, I have been having a problem getting stereo to work on the lab's new flatsceeen ( i know, i know. CRTs = much better but i think the purchaser was overcome with flatscreen lust). I am using a Dell 3007WFP (2560x 1600, refresh rate = 60hz) attached to nVidia Quadro FX 4500 graphics card with the eDimensional stereo glasses. I am using the current drivers from livna (100.14.09-2lvn7) on a Fedora7 box with the 2.6.21_1.3228 kernel. When I try to get Pymol or Coot to use stereo, no luck: Coot tells me that the hardware does not support quad buffered stereo. To the best of my knowledge I have the xorg.conf file correctly configured (see below) and I am wondering if anyone has run into these problems before or if somehow the livna driver can detect a refresh rate that is suboptimal and therefore refuse to start stereo. Perhaps there is also the issue of the kernel? I don't know, but I would appreciate any help. Below is my xorg.conf file and you can see I have 'Option Stereo' set to 3. I have fiddled around with many of the options in the xorg.conf file - basically trying every variation that i found other people had used. However, still no luck, which makes me think there may be some driver or kernel issue. Anyhow, any suggestions would be greatly appreciated (I would like to get this monitor work before falling back on a CRT - if the flicker is terrible, there will be no choice but it seems others have been using these monitors for stereo). thank you, zach charlop-powers PhD Candidate Graduate School of Biological Sciences Mount Sinai School of Medicine New York, NY ### Xorg configuration created by livna-config-display Section ServerLayout Identifier single head configuration Screen 0 Screen0 0 0 InputDeviceKeyboard0 CoreKeyboard EndSection Section Files ModulePath /usr/lib64/xorg/modules/extensions/nvidia ModulePath /usr/lib64/xorg/modules EndSection Section Module Load dbe Load extmod Load glx Load dbe Load extmod EndSection Section InputDevice Identifier Keyboard0 Driver kbd Option XkbModel pc105 Option XkbLayout us EndSection Section Monitor Identifier Monitor0 ModelNameDell 3007WFP HorizSync30.0 - 100.0 VertRefresh 56.0 - 76.0 Option dpms EndSection Section Device Identifier Videocard0 Driver nvidia Option Stereo 3 Option AllowDFPStereo 1 Option UBB True Option AddARGBGLXVisuals True Option DisableGLXRootClipping True EndSection Section Screen Identifier Screen0 Device Videocard0 MonitorMonitor0 DefaultDepth 24 SubSection Display Viewport 0 0 Depth 24 Modes2560x1600 1600x1200 1600x1024 1440x900 1400x1050 1280x1024 1280x960 1280x800 1152x864 1024x768 800x600 640x480 640x400 EndSubSection EndSection
