My Acer GD245HQ review experiences of a new 3D vision user
10 / 16
It seems to be a sideeffect of overdrive required for the screens to switch fast enough for proper 120hz 3d.
If you're on windows XP, why did you buy this display, as 3d vision only works on vista and up ?
If you dont use it for 3D, you can safely turn overdrive off, and this will increase it's response time by a little, however, for non 3d 120hz gaming, it's perfectly fine.
The only sideeffect of this is that it won't apply the saved brightness when the monitor turns on, so you have to enter the menu and change the brightness by 1 point left or right, and then it will be applied.
It seems to be a sideeffect of overdrive required for the screens to switch fast enough for proper 120hz 3d.
If you're on windows XP, why did you buy this display, as 3d vision only works on vista and up ?
If you dont use it for 3D, you can safely turn overdrive off, and this will increase it's response time by a little, however, for non 3d 120hz gaming, it's perfectly fine.
The only sideeffect of this is that it won't apply the saved brightness when the monitor turns on, so you have to enter the menu and change the brightness by 1 point left or right, and then it will be applied.
I actually got this monitor without any problems. No difference between the two sides of the screen, no halos around the letters, just nice, and normal.
I did have a little ghosting from the OD but this was fixed by lowering the brightness (go into the factory settings and change the rgb values for either cool or warm down to lower the brightness so it doesn't reset when the monitor is switched off).
I'm personally very happy with my monitor. Other than the single dead pixel... Oh well, can't be perfect.
I actually got this monitor without any problems. No difference between the two sides of the screen, no halos around the letters, just nice, and normal.
I did have a little ghosting from the OD but this was fixed by lowering the brightness (go into the factory settings and change the rgb values for either cool or warm down to lower the brightness so it doesn't reset when the monitor is switched off).
I'm personally very happy with my monitor. Other than the single dead pixel... Oh well, can't be perfect.
Nick
Twitter: @Dr_Inkduff
<b>Processor:</b> Intel Core i7 920 D0 (4Ghz) <b>Motherboard:</b> ASUS P6T
[quote name='Dr Nick' post='1089400' date='Jul 17 2010, 04:48 PM']I actually got this monitor without any problems. No difference between the two sides of the screen, no halos around the letters, just nice, and normal.[/quote]
[quote name='Dr Nick' post='1089400' date='Jul 17 2010, 04:48 PM']I actually got this monitor without any problems. No difference between the two sides of the screen, no halos around the letters, just nice, and normal.
take macro mode pictures of black text on gray background, preferably BOLD text, from a low angle, and then you will see that you have the sharpening effect
or go here [url="http://www.lagom.nl/lcd-test/sharpness.php"]http://www.lagom.nl/lcd-test/sharpness.php[/url]
when you look at it from afar, or when you squint your eyes, the image should be a uniform gray
[img]http://i30.tinypic.com/v611yw.jpg[/img]
The left half is overdriven, the right half isn't.
The right half is how the entire image should look on a normal LCD display.
The left half is excessive sharpening caused by overdrive.
It seems that if you mess with the service menu a lot, you get the left/right half discreptancy. Simply perform the power reset as described above to fix it.
take macro mode pictures of black text on gray background, preferably BOLD text, from a low angle, and then you will see that you have the sharpening effect
when you look at it from afar, or when you squint your eyes, the image should be a uniform gray
The left half is overdriven, the right half isn't.
The right half is how the entire image should look on a normal LCD display.
The left half is excessive sharpening caused by overdrive.
It seems that if you mess with the service menu a lot, you get the left/right half discreptancy. Simply perform the power reset as described above to fix it.
[quote name='Dr Nick' post='1089400' date='Jul 17 2010, 02:48 PM']I actually got this monitor without any problems. No difference between the two sides of the screen, no halos around the letters, just nice, and normal.
I did have a little ghosting from the OD but this was fixed by lowering the brightness (go into the factory settings and change the rgb values for either cool or warm down to lower the brightness so it doesn't reset when the monitor is switched off).
I'm personally very happy with my monitor. Other than the single dead pixel... Oh well, can't be perfect.
Nick[/quote]
you should test the monitor with overdrive off.
Then you will realize...
[quote name='Dr Nick' post='1089400' date='Jul 17 2010, 02:48 PM']I actually got this monitor without any problems. No difference between the two sides of the screen, no halos around the letters, just nice, and normal.
I did have a little ghosting from the OD but this was fixed by lowering the brightness (go into the factory settings and change the rgb values for either cool or warm down to lower the brightness so it doesn't reset when the monitor is switched off).
I'm personally very happy with my monitor. Other than the single dead pixel... Oh well, can't be perfect.
that's actually very severe, while i do get the white halo, i don't get anything that severe
unless i look at the monitor from way above/below
also, when the left/right monitor thing happened, even though the right side didnt get the "sharpen" effect, it performed in 3d just as well as the left side...
this might mean that the sharpening is a separate thing from the overdrive, and it just happens that you get the sharpening when overdrive is on due to a bug (same bug that makes it not apply brightness on poweron if you disable OD) or weird design choice... lets hope they fix this in a newer revision via firmware upgrade, and that someone can dump that firmware so that we can later flash it
if you have a viewsonic/samsung, you can try playing with the sharpness control in the menu...it seems to do the same white halo that acer's sharpen does...and if so, WHY THE HELL DID ACER LEAVE IT AT SUCH A HIGH VALUE AND NOT LET US DIAL IT DOWN ?
that's actually very severe, while i do get the white halo, i don't get anything that severe
unless i look at the monitor from way above/below
also, when the left/right monitor thing happened, even though the right side didnt get the "sharpen" effect, it performed in 3d just as well as the left side...
this might mean that the sharpening is a separate thing from the overdrive, and it just happens that you get the sharpening when overdrive is on due to a bug (same bug that makes it not apply brightness on poweron if you disable OD) or weird design choice... lets hope they fix this in a newer revision via firmware upgrade, and that someone can dump that firmware so that we can later flash it
if you have a viewsonic/samsung, you can try playing with the sharpness control in the menu...it seems to do the same white halo that acer's sharpen does...and if so, WHY THE HELL DID ACER LEAVE IT AT SUCH A HIGH VALUE AND NOT LET US DIAL IT DOWN ?
Weird, before i sold my GTX295 from Palit, left side of screen got this sharpen effect, other half not. Now entire screen got this sharpen effect with GTX470, why its not same? it should be, no? It doesnt bother me much, but still its weird.
Weird, before i sold my GTX295 from Palit, left side of screen got this sharpen effect, other half not. Now entire screen got this sharpen effect with GTX470, why its not same? it should be, no? It doesnt bother me much, but still its weird.
[quote name='spajdr' post='1089929' date='Jul 18 2010, 05:18 PM']Weird, before i sold my GTX295 from Palit, left side of screen got this sharpen effect, other half not. Now entire screen got this sharpen effect with GTX470, why its not same? it should be, no? It doesnt bother me much, but still its weird.[/quote]
to fix you need to disable the overdrive. Then you can activate when play in 3d. But if you do so, the monitor doesnt keep the memory of the brightness/contrast settings when switched off.. sob!
I also have gfx 470 and you can see the overdrive halo effect in the previous page.
[quote name='spajdr' post='1089929' date='Jul 18 2010, 05:18 PM']Weird, before i sold my GTX295 from Palit, left side of screen got this sharpen effect, other half not. Now entire screen got this sharpen effect with GTX470, why its not same? it should be, no? It doesnt bother me much, but still its weird.
to fix you need to disable the overdrive. Then you can activate when play in 3d. But if you do so, the monitor doesnt keep the memory of the brightness/contrast settings when switched off.. sob!
I also have gfx 470 and you can see the overdrive halo effect in the previous page.
[quote name='skyone' post='1090041' date='Jul 18 2010, 11:19 PM']to fix you need to disable the overdrive. Then you can activate when play in 3d. But if you do so, the monitor doesnt keep the memory of the brightness/contrast settings when switched off.. sob!
I also have gfx 470 and you can see the overdrive halo effect in the previous page.[/quote]
Thats not my point, im talking about that with previous graphic card (GTX295) half of screen was too sharp, while other was fine.
Now with GTX470 entire screen is too sharp. I though that this is due to LCD, but looks like that having different graphic card have something to do with it too.
[quote name='skyone' post='1090041' date='Jul 18 2010, 11:19 PM']to fix you need to disable the overdrive. Then you can activate when play in 3d. But if you do so, the monitor doesnt keep the memory of the brightness/contrast settings when switched off.. sob!
I also have gfx 470 and you can see the overdrive halo effect in the previous page.
Thats not my point, im talking about that with previous graphic card (GTX295) half of screen was too sharp, while other was fine.
Now with GTX470 entire screen is too sharp. I though that this is due to LCD, but looks like that having different graphic card have something to do with it too.
spajdr, the monitor bugged out on your previous graphics card, you probably unplugged it from power when you changed graphics card, so it unbugged itself and applied same settings to both sides of screen, as it should.
if you want the right side not to be sharp, you can bug it out again by going into the service menu, setting OD to OFF, then pressing the menu button on RESET text, then setting OD back to ON, and restarting the screen with power button
you will get the left/right screen difference then, but that bothers me MORE than the whole screen being sharp
am i gonna have to open mine up, dump the flash and then tinker with it ?
see if i can locate the byte that controls the sharpness, then set it to a lower value, that should work
spajdr, the monitor bugged out on your previous graphics card, you probably unplugged it from power when you changed graphics card, so it unbugged itself and applied same settings to both sides of screen, as it should.
if you want the right side not to be sharp, you can bug it out again by going into the service menu, setting OD to OFF, then pressing the menu button on RESET text, then setting OD back to ON, and restarting the screen with power button
you will get the left/right screen difference then, but that bothers me MORE than the whole screen being sharp
am i gonna have to open mine up, dump the flash and then tinker with it ?
see if i can locate the byte that controls the sharpness, then set it to a lower value, that should work
[quote name='rajkoderp' post='1090217' date='Jul 19 2010, 12:52 PM']see if i can locate the byte that controls the sharpness, then set it to a lower value, that should work[/quote]
May be that can be fixed in Acer service center?!
[quote name='rajkoderp' post='1090217' date='Jul 19 2010, 12:52 PM']see if i can locate the byte that controls the sharpness, then set it to a lower value, that should work
[quote name='rajkoderp' post='1089399' date='Jul 17 2010, 08:40 AM']If you're on windows XP, why did you buy this display, as 3d vision only works on vista and up ?[/quote]
3D vision does work on XP if you have a Quadro card and are using OpenGL quadbuffered stereo applications.
[quote name='rajkoderp' post='1089399' date='Jul 17 2010, 08:40 AM']If you're on windows XP, why did you buy this display, as 3d vision only works on vista and up ?
3D vision does work on XP if you have a Quadro card and are using OpenGL quadbuffered stereo applications.
[quote name='SandroX' post='1090238' date='Jul 19 2010, 12:22 PM']May be that can be fixed in Acer service center?![/quote]
sure, acer could push out a firmware update for all newer models
they just dont seem to want to.
it looks like they made it sharp like this ON PURPOSE.
Here's the current firmware with the sharpening artifacts from the acer gd235hz/gd245hq...
if anyone has a monitor with firmware other than GD245HQ MH M002 1215, and is skilled electronically, could they dump the 2MB MX flash on the display board ?
This flash contains only the firmware, the settings are stored in one of the 4 16kbit EEPROMs on the display board, but i dont have a i2c usb programmer, and didnt want to try which one it was (the other 3 are probably for the different outputs EDID/DDC info), so i cant try editing the settings there directly.
it would also be helpful if i could find a datasheet for MST8230V-LF, which is the chip of which 2 are used on the display board to control this monitor.
i've seen some mentions of an uart interface in the firmware, and also that it would probably expose a lot of debug info/commands like the overdrive values, so maybe if i could find uart TTL points on the display board, this method could be used to change the sharpness setting ? here is a zip with all the pictures i took while dissasembling the monitor: [url="http://www.mediafire.com/?idy6pydzo6sfkay"]http://www.mediafire.com/?idy6pydzo6sfkay[/url]
Here's the current firmware with the sharpening artifacts from the acer gd235hz/gd245hq...
if anyone has a monitor with firmware other than GD245HQ MH M002 1215, and is skilled electronically, could they dump the 2MB MX flash on the display board ?
This flash contains only the firmware, the settings are stored in one of the 4 16kbit EEPROMs on the display board, but i dont have a i2c usb programmer, and didnt want to try which one it was (the other 3 are probably for the different outputs EDID/DDC info), so i cant try editing the settings there directly.
it would also be helpful if i could find a datasheet for MST8230V-LF, which is the chip of which 2 are used on the display board to control this monitor.
i've seen some mentions of an uart interface in the firmware, and also that it would probably expose a lot of debug info/commands like the overdrive values, so maybe if i could find uart TTL points on the display board, this method could be used to change the sharpness setting ? here is a zip with all the pictures i took while dissasembling the monitor: http://www.mediafire.com/?idy6pydzo6sfkay
If you're on windows XP, why did you buy this display, as 3d vision only works on vista and up ?
If you dont use it for 3D, you can safely turn overdrive off, and this will increase it's response time by a little, however, for non 3d 120hz gaming, it's perfectly fine.
The only sideeffect of this is that it won't apply the saved brightness when the monitor turns on, so you have to enter the menu and change the brightness by 1 point left or right, and then it will be applied.
If you're on windows XP, why did you buy this display, as 3d vision only works on vista and up ?
If you dont use it for 3D, you can safely turn overdrive off, and this will increase it's response time by a little, however, for non 3d 120hz gaming, it's perfectly fine.
The only sideeffect of this is that it won't apply the saved brightness when the monitor turns on, so you have to enter the menu and change the brightness by 1 point left or right, and then it will be applied.
I did have a little ghosting from the OD but this was fixed by lowering the brightness (go into the factory settings and change the rgb values for either cool or warm down to lower the brightness so it doesn't reset when the monitor is switched off).
I'm personally very happy with my monitor. Other than the single dead pixel... Oh well, can't be perfect.
Nick
I did have a little ghosting from the OD but this was fixed by lowering the brightness (go into the factory settings and change the rgb values for either cool or warm down to lower the brightness so it doesn't reset when the monitor is switched off).
I'm personally very happy with my monitor. Other than the single dead pixel... Oh well, can't be perfect.
Nick
Twitter: @Dr_Inkduff
<b>Processor:</b> Intel Core i7 920 D0 (4Ghz) <b>Motherboard:</b> ASUS P6T
<b>Memory:</b> 6GB DDR3 RAM (Kingston) <b>Graphics:</b> GTX 260 (216 cores, physX); EVGA GTX 480 SC
<b>OS:</b> Win7 Home Premium 64-bit / Vista Home Premium 64-bit
<b>Hard Disks:</b> 750GB + 500GB <b>Tower:</b> Antec 'Twelve Hundred' Gaming Tower
<b>Monitors:</b> 24" ACER GD245HQbd 120Hz 1920*1080 + 22" widescreen LCD 1680x1050
http://bit.ly/Bluesteel
What date of manufacture?
What date of manufacture?
or go here [url="http://www.lagom.nl/lcd-test/sharpness.php"]http://www.lagom.nl/lcd-test/sharpness.php[/url]
when you look at it from afar, or when you squint your eyes, the image should be a uniform gray
[img]http://i30.tinypic.com/v611yw.jpg[/img]
The left half is overdriven, the right half isn't.
The right half is how the entire image should look on a normal LCD display.
The left half is excessive sharpening caused by overdrive.
It seems that if you mess with the service menu a lot, you get the left/right half discreptancy. Simply perform the power reset as described above to fix it.
or go here http://www.lagom.nl/lcd-test/sharpness.php
when you look at it from afar, or when you squint your eyes, the image should be a uniform gray
The left half is overdriven, the right half isn't.
The right half is how the entire image should look on a normal LCD display.
The left half is excessive sharpening caused by overdrive.
It seems that if you mess with the service menu a lot, you get the left/right half discreptancy. Simply perform the power reset as described above to fix it.
I did have a little ghosting from the OD but this was fixed by lowering the brightness (go into the factory settings and change the rgb values for either cool or warm down to lower the brightness so it doesn't reset when the monitor is switched off).
I'm personally very happy with my monitor. Other than the single dead pixel... Oh well, can't be perfect.
Nick[/quote]
you should test the monitor with overdrive off.
Then you will realize...
[img]http://img179.imageshack.us/img179/3688/acergd245hqoverdrive1.jpg[/img]
I did have a little ghosting from the OD but this was fixed by lowering the brightness (go into the factory settings and change the rgb values for either cool or warm down to lower the brightness so it doesn't reset when the monitor is switched off).
I'm personally very happy with my monitor. Other than the single dead pixel... Oh well, can't be perfect.
Nick
you should test the monitor with overdrive off.
Then you will realize...
unless i look at the monitor from way above/below
also, when the left/right monitor thing happened, even though the right side didnt get the "sharpen" effect, it performed in 3d just as well as the left side...
this might mean that the sharpening is a separate thing from the overdrive, and it just happens that you get the sharpening when overdrive is on due to a bug (same bug that makes it not apply brightness on poweron if you disable OD) or weird design choice... lets hope they fix this in a newer revision via firmware upgrade, and that someone can dump that firmware so that we can later flash it
if you have a viewsonic/samsung, you can try playing with the sharpness control in the menu...it seems to do the same white halo that acer's sharpen does...and if so, WHY THE HELL DID ACER LEAVE IT AT SUCH A HIGH VALUE AND NOT LET US DIAL IT DOWN ?
unless i look at the monitor from way above/below
also, when the left/right monitor thing happened, even though the right side didnt get the "sharpen" effect, it performed in 3d just as well as the left side...
this might mean that the sharpening is a separate thing from the overdrive, and it just happens that you get the sharpening when overdrive is on due to a bug (same bug that makes it not apply brightness on poweron if you disable OD) or weird design choice... lets hope they fix this in a newer revision via firmware upgrade, and that someone can dump that firmware so that we can later flash it
if you have a viewsonic/samsung, you can try playing with the sharpness control in the menu...it seems to do the same white halo that acer's sharpen does...and if so, WHY THE HELL DID ACER LEAVE IT AT SUCH A HIGH VALUE AND NOT LET US DIAL IT DOWN ?
GIGABYTE B360M DS3H v1.0 | Intel i5 8400 + Corsair Cooling HYDRO Series H60 | 16GB (2x8) DDR4 Samsung 2400@2666Mhz 15-15-15-28 CR 1T | Corsair RM650x 650W | EVGA GeForce GTX 1080 SC Gaming ACX 3.0 - 2070 / 10900 Mhz
GIGABYTE B360M DS3H v1.0 | Intel i5 8400 + Corsair Cooling HYDRO Series H60 | 16GB (2x8) DDR4 Samsung 2400@2666Mhz 15-15-15-28 CR 1T | Corsair RM650x 650W | EVGA GeForce GTX 1080 SC Gaming ACX 3.0 - 2070 / 10900 Mhz
to fix you need to disable the overdrive. Then you can activate when play in 3d. But if you do so, the monitor doesnt keep the memory of the brightness/contrast settings when switched off.. sob!
I also have gfx 470 and you can see the overdrive halo effect in the previous page.
to fix you need to disable the overdrive. Then you can activate when play in 3d. But if you do so, the monitor doesnt keep the memory of the brightness/contrast settings when switched off.. sob!
I also have gfx 470 and you can see the overdrive halo effect in the previous page.
I also have gfx 470 and you can see the overdrive halo effect in the previous page.[/quote]
Thats not my point, im talking about that with previous graphic card (GTX295) half of screen was too sharp, while other was fine.
Now with GTX470 entire screen is too sharp. I though that this is due to LCD, but looks like that having different graphic card have something to do with it too.
I also have gfx 470 and you can see the overdrive halo effect in the previous page.
Thats not my point, im talking about that with previous graphic card (GTX295) half of screen was too sharp, while other was fine.
Now with GTX470 entire screen is too sharp. I though that this is due to LCD, but looks like that having different graphic card have something to do with it too.
GIGABYTE B360M DS3H v1.0 | Intel i5 8400 + Corsair Cooling HYDRO Series H60 | 16GB (2x8) DDR4 Samsung 2400@2666Mhz 15-15-15-28 CR 1T | Corsair RM650x 650W | EVGA GeForce GTX 1080 SC Gaming ACX 3.0 - 2070 / 10900 Mhz
if you want the right side not to be sharp, you can bug it out again by going into the service menu, setting OD to OFF, then pressing the menu button on RESET text, then setting OD back to ON, and restarting the screen with power button
you will get the left/right screen difference then, but that bothers me MORE than the whole screen being sharp
am i gonna have to open mine up, dump the flash and then tinker with it ?
see if i can locate the byte that controls the sharpness, then set it to a lower value, that should work
if you want the right side not to be sharp, you can bug it out again by going into the service menu, setting OD to OFF, then pressing the menu button on RESET text, then setting OD back to ON, and restarting the screen with power button
you will get the left/right screen difference then, but that bothers me MORE than the whole screen being sharp
am i gonna have to open mine up, dump the flash and then tinker with it ?
see if i can locate the byte that controls the sharpness, then set it to a lower value, that should work
May be that can be fixed in Acer service center?!
May be that can be fixed in Acer service center?!
3D vision does work on XP if you have a Quadro card and are using OpenGL quadbuffered stereo applications.
3D vision does work on XP if you have a Quadro card and are using OpenGL quadbuffered stereo applications.
sure, acer could push out a firmware update for all newer models
they just dont seem to want to.
it looks like they made it sharp like this ON PURPOSE.
sure, acer could push out a firmware update for all newer models
they just dont seem to want to.
it looks like they made it sharp like this ON PURPOSE.
if anyone has a monitor with firmware other than GD245HQ MH M002 1215, and is skilled electronically, could they dump the 2MB MX flash on the display board ?
This flash contains only the firmware, the settings are stored in one of the 4 16kbit EEPROMs on the display board, but i dont have a i2c usb programmer, and didnt want to try which one it was (the other 3 are probably for the different outputs EDID/DDC info), so i cant try editing the settings there directly.
it would also be helpful if i could find a datasheet for MST8230V-LF, which is the chip of which 2 are used on the display board to control this monitor.
i've seen some mentions of an uart interface in the firmware, and also that it would probably expose a lot of debug info/commands like the overdrive values, so maybe if i could find uart TTL points on the display board, this method could be used to change the sharpness setting ? here is a zip with all the pictures i took while dissasembling the monitor: [url="http://www.mediafire.com/?idy6pydzo6sfkay"]http://www.mediafire.com/?idy6pydzo6sfkay[/url]
if anyone has a monitor with firmware other than GD245HQ MH M002 1215, and is skilled electronically, could they dump the 2MB MX flash on the display board ?
This flash contains only the firmware, the settings are stored in one of the 4 16kbit EEPROMs on the display board, but i dont have a i2c usb programmer, and didnt want to try which one it was (the other 3 are probably for the different outputs EDID/DDC info), so i cant try editing the settings there directly.
it would also be helpful if i could find a datasheet for MST8230V-LF, which is the chip of which 2 are used on the display board to control this monitor.
i've seen some mentions of an uart interface in the firmware, and also that it would probably expose a lot of debug info/commands like the overdrive values, so maybe if i could find uart TTL points on the display board, this method could be used to change the sharpness setting ? here is a zip with all the pictures i took while dissasembling the monitor: http://www.mediafire.com/?idy6pydzo6sfkay