It is definitely the monitor. Using 2 different monitors, this problem always occurs in my secondary monitor, but never with my primary monitor.
Same here. I'm using the Surface Pro 3 connected to a 720p 32" Emerson TV. I can literally just drag and drop the window from one screen to the other and have the problem start or stop depending on which monitor it's on. It doesn't do it on the Surface Pro 3 screen, just on the TV. I'd really like to find a solution.
I have an HDMI out to a 42" LCD TV as my primary monitor, and a DVI out to an older 19" Dell LCD. Both screens manifest the problem, but the larger screen obviously makes it more noticeable. I'll dig and report back if I can figure anything out -- and will keep checking back in hopes someone gets it resolved soon. It's really bugging me...
Your mouse is meant to understand its place on the screen according to your resolution. If its messing up you may have to update your graphics drivers. If you follow the instructions on this page http://hopper.minecraft.net/help/pixel-format-not-accelerated/support/#dxdiag and reply here with the paste.ubuntu.com link it has you make, I can tell you what if any driver you may need to update to help fix this issue better.
Windows 10 magnifies automatically if you have a large resolution. If you go into display settings and slide the bar under 'Change the size of text, apps, and other items' down to 100% it fixes this problem. Not sure if this is a thing in Windows 8, if it is I never had it turned on.
Thank you worndownkeys for the clue in that first sentence.
If you go to control panel > appearance and personalization > display, there is an menu titled "change the size of all items." There should be a checkbox labled "let me choose one scaling level for all of my displays." Check that box, then click on the bubbled option "smaller - 100% (default)."
I use a windows 8 laptop with a second monitor and this worked 100% for me. Hope this helps! Thanks again to TheOtherMelinda for the base of the idea!
Okay, I am having this same issue and none of the fixes are working for me. I have actually had the problem with my second monitor for some time, so I always played on my primary which has never done this before. My primary is now at 32" 720p tv on HDMI input. I have uninstalled my minecraft and back in, I have set my profile to try different screen resolutions, my computer res is set to recommendation with no magnification. I am running Windows 10. I am running most current drivers for my video card. This was working just fine before I installed this monitor. Anyone else have any ideas?
Anyone else having this problem, there may be another thing causing it. I can't be certain, but my settings were odd.
I just got a new laptop with Windows 10 and started testing with Minecraft, didn't have mouse drift on the laptop screen. Hooked up my tv to the HDMI port and played with both screens on with no mouse drifting. A bit ago, I found out I could make it display only on my tv and have the laptop screen off, then I had the mouse drifting.
I can't be certain what caused it, but after setting my screens both back on, I saw it say my laptop screen was set to zoom 125% in the display settings. I changed that to 100% for both monitors, then flipped back to displaying only on my tv again, then noticed that it set my screen size to 1920x1200 when it is only a 1080p tv, so I changed that setting back to 1920x1080. No more mouse drift.
So if the screen zoom is already 100% for both laptop and external monitor, try looking at the external monitor's resolution setting. I'm not sure if the laptop screen setting being 125% despite it being turned off or the externa lmonitor resolution fixed it, but it should help anyone else having the problem.
EDIT: Scratch the resolution bit, I forgot my external monitor/tv has a 16:10 ratio, hence the 1920x1200 setting... must have been because it set the laptop zoom. Apparently, you can set that differently per screen or for both at once.
"Could not create the Java Virtual Machine" using the offline program? Solution to the problem: <!-- m -->http://www.youtube.com/watch?v=LdSYsGR2wpI Get the JAR version, make BAT. Works on Java 1.5, too.
I have been having this problem too! I use a gaming laptop and I also have a view sonic monitor that I use. I wire them together so that I can play on the bigger screen. But, I play minecraft on the monitor, it does thatdrifting mouse thing. When I don't use a monitor, its totally fine. Idk whats up but I guess i can play Minecraft on my laptop screen instead.
Check your driver setting for the External Monitor's Refresh Rate!
Hey Guys, thanks for all of the useful recommendations. For the record, the problem on our system was actually the refresh rate settings (driver issue) for the second monitor (using a 24" Samsung Synchmaster as the main screen for gaming with a 15.6" MSI laptop).
None of the other fixes had worked, so I rebooted (again) and started checking the display driver settings. I found that the default refresh rate for the external monitor had been set to 59p Hz (who knows why?), so I updated it to the spec for the monitor = 60p Hz. VOILA! The drifting mouse problem has now been banished!
Note: the mouse was only drifting on the external monitor when using it as the only display (it wasn't happening on the laptop's 15.6" screen running solo) - that's why I figured that it was the monitor's display driver settings (the driver itself was up-to-date).
I really hope that this fix works for someone else in need - MineCraft forever!
Easiest fix I found:
1) Right-click your Minecraft icon
2) Properties
3) Compatibility
4) Check the box "Disable display scaling on hi DPI settings
I know this is an older thread, but it just started up with mine tonight on my laptop and I would have liked an answer at the end of the thread in the first google hit for my problem
I had the same issue running the game in Windows 10. I was able to fix the issue by changing my screen resolution from 1024 x 768 to 1920 x 1080. Not sure why increasing it would help, but it resolved the issue.
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It is definitely the monitor. Using 2 different monitors, this problem always occurs in my secondary monitor, but never with my primary monitor.
Same here. I'm using the Surface Pro 3 connected to a 720p 32" Emerson TV. I can literally just drag and drop the window from one screen to the other and have the problem start or stop depending on which monitor it's on. It doesn't do it on the Surface Pro 3 screen, just on the TV. I'd really like to find a solution.
Same problem here. Playing 1.8.8, and never had it with a previous version.
I'm running JRE 1.8u45 x64, but Minecraft is using it's own private JRE in:
%INSTALLATION_ROOT%\Minecraft\runtime\jre-x64\1.8.0_25
I have an HDMI out to a 42" LCD TV as my primary monitor, and a DVI out to an older 19" Dell LCD. Both screens manifest the problem, but the larger screen obviously makes it more noticeable. I'll dig and report back if I can figure anything out -- and will keep checking back in hopes someone gets it resolved soon. It's really bugging me...
this has still not been fixed RIP i cant play mine craft like this please some one who is smart fix this i beg
omg i fixed it by changing my screen pixel count in my graphics options on my commuter i am saved (why did this work?????)
Your mouse is meant to understand its place on the screen according to your resolution. If its messing up you may have to update your graphics drivers. If you follow the instructions on this page http://hopper.minecraft.net/help/pixel-format-not-accelerated/support/#dxdiag and reply here with the paste.ubuntu.com link it has you make, I can tell you what if any driver you may need to update to help fix this issue better.
how do i change this setting?
Windows 10 magnifies automatically if you have a large resolution. If you go into display settings and slide the bar under 'Change the size of text, apps, and other items' down to 100% it fixes this problem. Not sure if this is a thing in Windows 8, if it is I never had it turned on.
Thank you worndownkeys for the clue in that first sentence.
I tried what TheOtherMelinda said and it worked.
If you go to control panel > appearance and personalization > display, there is an menu titled "change the size of all items." There should be a checkbox labled "let me choose one scaling level for all of my displays." Check that box, then click on the bubbled option "smaller - 100% (default)."
I use a windows 8 laptop with a second monitor and this worked 100% for me. Hope this helps! Thanks again to TheOtherMelinda for the base of the idea!
Okay, I am having this same issue and none of the fixes are working for me. I have actually had the problem with my second monitor for some time, so I always played on my primary which has never done this before. My primary is now at 32" 720p tv on HDMI input. I have uninstalled my minecraft and back in, I have set my profile to try different screen resolutions, my computer res is set to recommendation with no magnification. I am running Windows 10. I am running most current drivers for my video card. This was working just fine before I installed this monitor. Anyone else have any ideas?
Thanks.
I have the same issue but on mac
Anyone else having this problem, there may be another thing causing it. I can't be certain, but my settings were odd.
I just got a new laptop with Windows 10 and started testing with Minecraft, didn't have mouse drift on the laptop screen. Hooked up my tv to the HDMI port and played with both screens on with no mouse drifting. A bit ago, I found out I could make it display only on my tv and have the laptop screen off, then I had the mouse drifting.
I can't be certain what caused it, but after setting my screens both back on, I saw it say my laptop screen was set to zoom 125% in the display settings. I changed that to 100% for both monitors, then flipped back to displaying only on my tv again, then noticed that it set my screen size to 1920x1200 when it is only a 1080p tv, so I changed that setting back to 1920x1080. No more mouse drift.
So if the screen zoom is already 100% for both laptop and external monitor, try looking at the external monitor's resolution setting. I'm not sure if the laptop screen setting being 125% despite it being turned off or the externa lmonitor resolution fixed it, but it should help anyone else having the problem.
EDIT: Scratch the resolution bit, I forgot my external monitor/tv has a 16:10 ratio, hence the 1920x1200 setting... must have been because it set the laptop zoom. Apparently, you can set that differently per screen or for both at once.
"Could not create the Java Virtual Machine" using the offline program? Solution to the problem: <!-- m -->http://www.youtube.com/watch?v=LdSYsGR2wpI Get the JAR version, make BAT. Works on Java 1.5, too.
I have the same problem.
I have been having this problem too! I use a gaming laptop and I also have a view sonic monitor that I use. I wire them together so that I can play on the bigger screen. But, I play minecraft on the monitor, it does thatdrifting mouse thing. When I don't use a monitor, its totally fine. Idk whats up but I guess i can play Minecraft on my laptop screen instead.
Check your driver setting for the External Monitor's Refresh Rate!
Hey Guys, thanks for all of the useful recommendations. For the record, the problem on our system was actually the refresh rate settings (driver issue) for the second monitor (using a 24" Samsung Synchmaster as the main screen for gaming with a 15.6" MSI laptop).
None of the other fixes had worked, so I rebooted (again) and started checking the display driver settings. I found that the default refresh rate for the external monitor had been set to 59p Hz (who knows why?), so I updated it to the spec for the monitor = 60p Hz. VOILA! The drifting mouse problem has now been banished!
Note: the mouse was only drifting on the external monitor when using it as the only display (it wasn't happening on the laptop's 15.6" screen running solo) - that's why I figured that it was the monitor's display driver settings (the driver itself was up-to-date).
I really hope that this fix works for someone else in need - MineCraft forever!
hey everyone I have the same problem but I found out if you change your display to 150% it fixed it for me i'm on windows 10 BTW
People who are windows 10 go to your display settings and if u saw something with red and want u to sign out do it it will solve everything!
Easiest fix I found:

1) Right-click your Minecraft icon
2) Properties
3) Compatibility
4) Check the box "Disable display scaling on hi DPI settings
I know this is an older thread, but it just started up with mine tonight on my laptop and I would have liked an answer at the end of the thread in the first google hit for my problem
I had the exact same problem but this link fixed it.
https://bugs.mojang.com/browse/MC-83488
I had the same issue running the game in Windows 10. I was able to fix the issue by changing my screen resolution from 1024 x 768 to 1920 x 1080. Not sure why increasing it would help, but it resolved the issue.