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Thread Tools | Display Modes |
#1
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Adj Monitor Refresh Rate
I am running a dual boot system, Win98SE and Win2000Pro.(AMD 2200 XP with 1GB of
ram). I had posted about the monitor problem awhile back (OT Monitor MicroProcessor on May 11,07) Recently, I discovered that I could change the refresh rate on my monitor in win2000 even thought the monitor's EDID was corrupted.; I had manually installed the Envision 910 monitor drivers. Then, I let Win2000 install my monitor as a Default VGA Monitor and then it worked when I set the refresh rate manually and unchecked 'using EDID'. I did this through the Catlyst Control Center within my ATI drivers. (Radeon 8500LE with the latest drivers). Since I lost the EDID in my 19" Envision910 Monitor awhile back, I could only get 60Hz refresh rate, even though I let Windows try to use 85Hz (display properties). No matter what I set it to, it would not change from 60Hz.At present, I am stuck at 60Hz in Win98SE (somewhat hard on the eyes.. The ATI drivers (same version number as the one I have installed in Win2000) don't have the Catylst Control Center option of letting me disable the EDID detection Is there somehow I can go into the Win98SE registry and tell Windows to set it to the refresh rate that I want, overriding what Windows thinks it should do? If this sounds confusing, I'm sorry. I tried Franc Zabkar's great suggestion to my earlier post, to no avail. Hopefully, someone out there can give me the solution or, at least, a path to travel besides getting a new monitor or deleting Win98SE. :-) |
#2
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Adj Monitor Refresh Rate
Buffalo wrote:
Recently, I discovered that I could change the refresh rate on my monitor in win2000 even thought the monitor's EDID was corrupted.; You should be able to choose any resolution and refresh rates your video card is capable of and not just the ones that Windows thinks your monitor is capable of and force your video card to use that setting. I know I've seen this with NVidia video cards, but maybe not with ATI cards. Anyways, do you have a driver for your monitor? Does it appear in device manager? I had manually installed the Envision 910 monitor drivers. Is there somehow I can go into the Win98SE registry and tell Windows to set it to the refresh rate that I want, overriding what Windows thinks it should do? I've located a file called epi_inf.exe which contains a bunch of .INF and .ICM files for various Envision monitors (including the 910). I assume you have the file en910.inf. If you don't, I can post it here. It should give you the refresh rates you're looking for. |
#3
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Adj Monitor Refresh Rate
On Sat, 9 Jun 2007 17:45:25 -0600, "Buffalo"
put finger to keyboard and composed: I am running a dual boot system, Win98SE and Win2000Pro.(AMD 2200 XP with 1GB of ram). I had posted about the monitor problem awhile back (OT Monitor MicroProcessor on May 11,07) Recently, I discovered that I could change the refresh rate on my monitor in win2000 even thought the monitor's EDID was corrupted.; I had manually installed the Envision 910 monitor drivers. Then, I let Win2000 install my monitor as a Default VGA Monitor and then it worked when I set the refresh rate manually and unchecked 'using EDID'. I did this through the Catlyst Control Center within my ATI drivers. (Radeon 8500LE with the latest drivers). Since I lost the EDID in my 19" Envision910 Monitor awhile back, I could only get 60Hz refresh rate, even though I let Windows try to use 85Hz (display properties). No matter what I set it to, it would not change from 60Hz.At present, I am stuck at 60Hz in Win98SE (somewhat hard on the eyes.. The ATI drivers (same version number as the one I have installed in Win2000) don't have the Catylst Control Center option of letting me disable the EDID detection Is there somehow I can go into the Win98SE registry and tell Windows to set it to the refresh rate that I want, overriding what Windows thinks it should do? If this sounds confusing, I'm sorry. I tried Franc Zabkar's great suggestion to my earlier post, to no avail. Hopefully, someone out there can give me the solution or, at least, a path to travel besides getting a new monitor or deleting Win98SE. :-) I'm using a Mitsubishi Diamond View DV152 15" LCD monitor (= Acer FP563). It is attached to Win98SE and Win95B boxes via a passive KVM switch. To eliminate ghosting problems (which were caused by poor quality video extension cables), I utilised the RGB cables from two old scrapped monitors. However, the penalty was that I lost the ability to detect EDID (the DDC pins were missing from the cables). Despite this, the monitor works just fine at any specified resolution and refresh rate. All I needed to do was to install the monitor with the appropriate INF file. Yours appears to be he http://www.aocdisplay.com/envision/drivers/Envision.exe The fact that your monitor works OK with Win2K suggests that the monitor is not limiting itself as a consequence of its corrupted EDID. The limitation is in your OS or display driver. Having said that, your display driver should be able to function properly with earlier monitors that don't support DDC/EDID, so I can't see that as your problem. If you can find your original EDID block in your registry (Win98 or Win2K), then export it to a .reg file and post it here. It should then be just a matter of finding a utility (eg PowerStrip) that can write these data to your monitor. All that we would need to do would be to present the data in a format that this utility requires. - Franc Zabkar -- Please remove one 'i' from my address when replying by email. |
#4
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Adj Monitor Refresh Rate
98 Guy wrote:
Buffalo wrote: Recently, I discovered that I could change the refresh rate on my monitor in win2000 even thought the monitor's EDID was corrupted.; You should be able to choose any resolution and refresh rates your video card is capable of and not just the ones that Windows thinks your monitor is capable of and force your video card to use that setting. I have the choices in Display Properties to change the refresh rates, but it will not do it. I know I've seen this with NVidia video cards, but maybe not with ATI cards. Anyways, do you have a driver for your monitor? Does it appear in device manager? I manually inputed the monitor drivers for the Envision 910 and it is so listed in Display Properties and also in the Device Manager. When it was this way in Win2000, and I had the Catalyst Control Center set to use EDID, I could not go above 60Hz no matter what I chose. Then when I let Win2000 install a default VGA monitor and I used the Monitor Attributes section (ATI Catalyst Control Center) to uncheck 'use EDID or driver defaults' and entered the max resolution and refresh rate, it worked. I had manually installed the Envision 910 monitor drivers. Is there somehow I can go into the Win98SE registry and tell Windows to set it to the refresh rate that I want, overriding what Windows thinks it should do? I've located a file called epi_inf.exe which contains a bunch of .INF and .ICM files for various Envision monitors (including the 910). I assume you have the file en910.inf. If you don't, I can post it here. It should give you the refresh rates you're looking for. Yes, I have the latest en910.inf installed. It just seems that in Win98SE, the ATI vid card needs to communicate with the monitor. Since the EDID is bad, it seems that the card will not change the refresh rate. In Display Properties, I have the option to choose many different refresh rates and resolutions, but the monitor actually stays at 60Hz.. I was hoping that I could use the Registry in Win98SE to accomplish the change. Thanks for your time and effort. |
#5
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Adj Monitor Refresh Rate
Buffalo wrote:
Then when I let Win2000 install a default VGA monitor and I used the Monitor Attributes section (ATI Catalyst Control Center) to uncheck 'use EDID or driver defaults' and entered the max resolution and refresh rate, it worked. Then in win-98, remove your monitor in device manager. Ignore any "found new hardware" messages that might happen after that. Your display properties should then no longer show the Envision monitor. You should then be able to select a refresh rate like you do in win-2K. Does the monitor dispay the refresh rate on-screen? Are you sure that win-2K is driving it higher than 60 hz? You seem to be saying that the monitor has somehow "lost" it's internal EDID information. I don't know how such a thing is possible. But if you are able to drive it higher than 60 hz in win-2K, then win-98 should do the same. |
#6
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Adj Monitor Refresh Rate
Franc Zabkar wrote:
I'm using a Mitsubishi Diamond View DV152 15" LCD monitor (= Acer FP563). It is attached to Win98SE and Win95B boxes via a passive KVM switch. To eliminate ghosting problems (which were caused by poor quality video extension cables), I utilised the RGB cables from two old scrapped monitors. However, the penalty was that I lost the ability to detect EDID (the DDC pins were missing from the cables). Despite this, the monitor works just fine at any specified resolution and refresh rate. All I needed to do was to install the monitor with the appropriate INF file. Yours appears to be he http://www.aocdisplay.com/envision/drivers/Envision.exe I already have the latest .inf file for the Envision910 monitor, but thanks for your research. The fact that your monitor works OK with Win2K suggests that the monitor is not limiting itself as a consequence of its corrupted EDID. That appears to be the case. The limitation is in your OS or display driver. Having said that, your display driver should be able to function properly with earlier monitors that don't support DDC/EDID, so I can't see that as your problem. I just wonder what the registry change was in Win2000 that the ATI Catlyst Control Center made that allowed it to work? Perhaps it is Win98SE that is limiting the monitor timing since the EDID is bad, I tried installing a default monitor in Win98SE, but I still haven't been able to get above 60Hz even though Display Properties lets me try different refresh rates. If you can find your original EDID block in your registry (Win98 or Win2K), then export it to a .reg file and post it here. I'm not sure what key it is in. If you can tell me, I will export it both from 2000 and 98 and post it here. It should then be just a matter of finding a utility (eg PowerStrip) that can write these data to your monitor. All that we would need to do would be to present the data in a format that this utility requires. I wouldn't know what format to use. When I originally installed PowerStrip, that was when the problem started. I did not change any refresh rates, at that time, but had PowerStrip check the EDID for my monitor (I was in 2000 at the time) and then the computer basically slowed down to a crawl. When I finally got to shut it down properly and restarted it, the refresh rate was at 60Hz and the EDID was bad. The makers of PowerStrip said that there was no way their software could have caused the problem and they had no solution or suggestions for a work-a-round. - Franc Zabkar Thanks again, Buffalo |
#7
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Adj Monitor Refresh Rate
98 Guy wrote:
Buffalo wrote: Then when I let Win2000 install a default VGA monitor and I used the Monitor Attributes section (ATI Catalyst Control Center) to uncheck 'use EDID or driver defaults' and entered the max resolution and refresh rate, it worked. Then in win-98, remove your monitor in device manager. When I do that (in fact, I just now did it) there is no choice on setting a refresh rate, not even default or optimal. Perhaps I will try installing PowerStrip and try it again before I install another monitor. Ignore any "found new hardware" messages that might happen after that. No messages happened. Your display properties should then no longer show the Envision monitor. You should then be able to select a refresh rate like you do in win-2K. Display Properties now doesn't even have a monitor tab and no refresh rate choices in the Adapter tab. There is no choice for refresh rate when I remove the Envision Monitor in Win98SE. In Win98SE, the ATI drivers do not include the Catlyst Control Center, which I used in Win2000 to uncheck 'use EDID or default' and then set the max resolution and max refresh rate manually. However, in Win2000, I again installed the Envision 910 monitor and it worked fine as long as I have the 'use EDID or default' box unchecked. Does the monitor dispay the refresh rate on-screen? Are you sure that win-2K is driving it higher than 60 hz? Yes, the monitor refresh rate does show on the screen. I also used another program , osd.exe, to double check the refresh rate. You seem to be saying that the monitor has somehow "lost" it's internal EDID information. I don't know how such a thing is possible. When I use ddctest.exe for info, it reports an "invalid or checksum" and that the 'monitor microprocessor is not responding'. But if you are able to drive it higher than 60 hz in win-2K, then win-98 should do the same. I am hoping to do that , but it seems that the vid card (while in Win98SE) needs to communicate with the monitor. I don't understand why. I will try installing PowerStrip now, without rebooting, hopefully. |
#8
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Adj Monitor Refresh Rate
Buffalo wrote:
I am hoping to do that , but it seems that the vid card (while in Win98SE) needs to communicate with the monitor. I don't understand why. I will try installing PowerStrip now, without rebooting, hopefully. Still no luck. Perhaps somehow Win2000Pro instructs the video adapter card differently. |
#9
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Adj Monitor Refresh Rate
Buffalo wrote:
remove your monitor in device manager. When I do that (in fact, I just now did it) there is no choice on setting a refresh rate, not even default or optimal. Display Properties now doesn't even have a monitor tab and no refresh rate choices in the Adapter tab. Maybe you need to at least have the default monitor installed. Go to Control-Panel and select "add new hardware". Hit "next" twice. When asked "Is the device that you want to install listed below", select no, then hit next. When asked to search for hardware, select no, then hit next. In the hardware selection list, select "Monitors", then hit next. The right-hand window will show (standard monitor types) (leave it there). The left-hand window will show models. You should see a list of "Super VGA" modes showing resolution and refresh. Select the one that matches the resolution and mode you are looking for. You should then see "to continue, click finish". You shouldn't have to re-boot. When that window goes away, bring up the device manager and see if there is now a monitor listed with the resolution you chose previously. On the ATI control panel, you should now see the same monitor type. You might have to restart to see it. |
#10
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Adj Monitor Refresh Rate
98 Guy wrote:
Buffalo wrote: remove your monitor in device manager. When I do that (in fact, I just now did it) there is no choice on setting a refresh rate, not even default or optimal. Display Properties now doesn't even have a monitor tab and no refresh rate choices in the Adapter tab. Maybe you need to at least have the default monitor installed. Go to Control-Panel and select "add new hardware". Hit "next" twice. When asked "Is the device that you want to install listed below", select no, then hit next. When asked to search for hardware, select no, then hit next. In the hardware selection list, select "Monitors", then hit next. The right-hand window will show (standard monitor types) (leave it there). The left-hand window will show models. You should see a list of "Super VGA" modes showing resolution and refresh. Select the one that matches the resolution and mode you are looking for. You should then see "to continue, click finish". You shouldn't have to re-boot. When that window goes away, bring up the device manager and see if there is now a monitor listed with the resolution you chose previously. On the ATI control panel, you should now see the same monitor type. You might have to restart to see it. Tried it. Still at 60Hz even though I get choices in Display Manager to change it. The monitor still stays at 60Hz. I tried the Super VGA 1280x1024@75 and it was recognized in Display Manager with refresh rates up to 75Hz. Still no luck. Something in 2000 must let the ATI drivers (Catlyst Control Center) set the refresh rate to an entry in the Registry which the ATI card uses blindly whereas Win98SE doesn't. |
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