Photoshop: Paint offset from cursor when using Genius tablet (tablet driver bug)

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  • (Edited)
I have a Genius i608x drawing tablet. Not the fanciest of tablets, but it worked perfectly with Photoshop CS6, but I've recently upgraded to CC and now when I use my tablet, the cursor appears in the correct position on the screen, but when I press down, the paint appears in the wrong position on the screen. It appears to be offset on the X and Y axes by a few hundred pixels. The cursor itself is in the correct position and it works perfectly with Microsoft Paint and in the test program provided by Genius. I have the latest driver installed. I'm convinced that this is a problem with Photoshop CC because my tablet worked perfectly with Photoshop CS6. My current setup is as follows:

CPU: Intel Core 2 Quad Q6600
RAM: 4GB Kingston Value Range
GPU: nVidia GeForce 9600GT by Palit
Monitors: Samsung SyncMaster P2250 & LG 22EN43V
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Darthmarshie

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  • frustrated, annoyed

Posted 4 years ago

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Chris Cox

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Contact the maker of your tablet and see if they have a driver update to fix their offset problem.
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Chris Cox

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I read your post, but I already know that the problem is in Genius's tablet driver software (they have a history of bugs like this). There is nothing that Adobe can do about this. Photoshop is just using the coordinates from the OS and tablet APIs - but the Genius tablet driver software is off. And for some reason Genius has version specific hacks in their driver software (we really don't know why) and their behavior changes with different versions of Photoshop, and usually doesn't work at all when new versions are released.

You need to contact Genius and work with them to get a fix for their driver software.
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Darthmarshie

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OK, thank you. That's the kind of answer I was looking for. I've contacted them. Thank you for a detailed reply.
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Darthmarshie

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OK, I contacted Genius and they replied that if it worked fine in CS6 and it works fine in everything else, then it's not a driver issue. They suggested that I try a fix that someone else posted (https://forums.adobe.com/message/6116934). That person had the same problem as me with Photoshop CC with a completely different tablet which means that it isn't a driver issue. I already tried adjusting my display setting to no avail.

I have a dual monitor setup. One monitor in landscape and the other in portrait. When I got CC, I changed my setup so that my landscape monitor is on my right and not my left any more. I checked on the offset of the paint from the cursor and it's exactly 1080 pixels, which is the width of my portrait monitor. My tablet has no offset problems in any other software. I can use it in Paint, GIMP, Blender, Windows etc. without any problems. The only time I have this problem is in Photoshop which according to Occam's Razor means that it's probably a problem with Photoshop.

I can interact with the buttons in Photoshop just fine, the problem is that the paint is appearing in the wrong position on the canvas. A tablet is basically just a mouse that uses absolute positioning not relative. It doesn't make sense for a driver issue to produce this result. It'd be like being able to click all the buttons, but as soon as you click on the canvas the paint appears offset from the cursor. Photoshop is basically just interpreting my tablet interactions as mouse movement and clicking (Ignoring the pressure sensitivity), right? I think that Photoshop is having a problem dealing with my tablet and the dual monitors. When I disabled my portrait monitor, the tablet worked just fine.

This is not a driver issue, if it was, I'd be having problems in other software too. Photoshop is incorrectly interpreting my "mouse" clicks on my tablet. If it was a driver issue, the cursor would be offset too. I'm so sure that this is a problem in Photoshop caused by the use of an unfamiliar dual monitor layout and a tablet.
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Darthmarshie

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I assume that Photoshop is interpreting the co-ordinates from the top left corner of the monitor, like all software, right? That's what's causing this offset. The paint is offset by the width of my portrait monitor and the height of the 450 pixel offset set up in my display properties to compensate for the physical location of the monitors.
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Darthmarshie

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I just solved it. I changed my primary display to my portrait monitor. It works fine now. However, this is still a Photoshop problem, not a driver problem as you said it was. This needs to be fixed. I shouldn't have to change my system settings to compensate for a bug in your software.
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Darthmarshie

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This was NOT a driver issue. If anyone has this same issue and you have two monitors set up, try changing your primary display to the other monitor. It solved my problem and it works fine again. This is a bug in the Photoshop programming, not your drivers.

Adobe, you need to get on this problem. Your users shouldn't have to change their system settings just to make your software work properly. Photoshop is interpreting co-ordinates onto the canvas incorrectly when using a dual monitor setup with one in portrait and the other in landscape.
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Chris Cox

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Actually, you just described a driver bug. Photoshop gets the coordinates from the OS, and the OS draws the cursor at the coordinates reported by the device. Photoshop doesn't really care what display it is on, but the tablet driver mapping does care.

Again, you really should contact your tablet maker about these issues with your tablet driver software.
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Darthmarshie

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Just for reference, this is how my displays are now set up:


My primary display was set to my landscape monitor, but it was causing an offset problem in Photoshop because of the extra 450 vertical pixels and 1080 horizontal pixels that were not being accommodated for by the Photoshop canvas. If my displays had been switched around so that my landscape monitor was on the left hand side, there wouldn't have been a problem.

Here is further proof that it wasn't a driver issue. My tablet software actually accommodates for a multi-monitor setup. I checked these settings and the display settings multiple times which lead me to believe that it was a software issue.

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Chris Cox

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Again, the driver handles the mapping from the tablet to the display, and gives the coordinates to the OS. The driver is the only component involved that could cause this issue.
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Darthmarshie

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OK, let's go with that. Can you please give me a detailed explanation of how this is a driver problem? I'm failing to understand why it works perfectly in Paint, GIMP, the test software and every other program I'm using. The tablet is working just fine while interacting with the OS. I can even press the tool buttons in Photoshop just fine but as soon as I try to paint, it gives me problems. The cursor is in the correct place and the OS is behaving as though the cursor is in the right place. The only problem I'm having is when trying to put something on the canvas is Photoshop.

I want to understand how this is a driver issue and not a software issue. Please explain it fully.

It doesn't make sense to me that it's a driver issue if I can't replicate the problem outside of Photoshop. It doesn't make sense. If I could replicate the problem in Paint or GIMP, then I would understand, but the fact that it only happens in Photoshop and not in the OS or any other software doesn't make sense.

This problem has re-appeared... Only in Photoshop. The problem also only seems to happen with certain tools. I've tried the brush tool, the marquee tool and the eraser and I get the same bug, but when I use the pen tool, it works accurately. That cannot be a driver issue.

Here are other people with the same problem:
http://feedback.photoshop.com/photosh...

http://forum.tabletpcreview.com/softw...

http://photoshopcafe.com/cafe/showthr...

https://discussions.apple.com/thread/...
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Chris Cox

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I already have given you that explanation -- the driver handles the mapping from the tablet to the display, the OS then handles the cursor position. If they don't match, then the OS or driver has a bug, and we know that the OS and Photoshop works for other tablets, so only the driver is left.

Yes, this is just another driver bug, for which Genius is rather well known.
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Darthmarshie

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I give up. You clearly have a bias against Genius tablets. I've already contacted them and they say that if the tablet works fine in other software then it's a problem in Photoshop.

Before I go and look for help elsewhere, please explain why the tablet works fine in other software? And please explain why this only happens with certain tools in Photoshop? Please explain why I can interact with every button in Photoshop just fine but when I try and do something on the canvas it gives me a problem? Please explain why the tablet works fine in the OS, but gives me problems in Photoshop?

When I touch the pen to the left hand side of the active area of the tablet, the cursor appears on the left of the monitor, but the paint appears 500 pixels to the right of that position. The cursor position is fine in relation to where I'm touching it on the tablet, the PAINT is appearing in the wrong position.

I'm looking for some form of help other than abdication of responsibility. This is incredibly frustrating and I've already tried your suggestion of talking to Genius. Can you not offer anything else? Can I speak to someone else who is more willing to suggest other solutions?
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Chris Cox

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No, I just have more information about the history of their driver problems, and how the drivers, OS and applications work.

Unfortunately, the support people you spoke to at Genius mislead you. The problem you describe can only be caused by a bug in the driver, as has already been explained.

Photoshop works just fine with tablet drivers that work correctly. But your driver does not work correctly.
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Joanne David

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Clearly if this problem cannot be replicated outside of PhotoShop, it must be a PhotoShop problem. Or has it reached the point where PhotoShop is expecting the hardware guys to produce drivers that include fixes for PhotoShop bugs? That is a little cheeky, don't you think!!
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Chris Cox

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No, that just means that you are lacking a lot of information. Many of these knockoff drivers have code specific to each application and version (we really don't know why they do that, though). And the tablet support works just fine in Photoshop with many other tablets.

All Photoshop expects is drivers that work correctly.
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Isabelle Pettinger

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That's cute. One would think that a name as big as Photoshop would have a better solution to a common multi-platform problem then enlisting someone to repetitively and unhelpfully assert that it is not Photoshop's problem, because clearly there are no bugs within this glorious program. I use a Huion tablet that has worked for me in previous Photoshop programs, as well as programs downloaded and online, such as Manga Studio, Chibi Paint, OneMotion, GIMP, etcetera. Free and paid programs have had no problem with the mapping from tablet to display and OS with cursor position, yet Photoshop, a popular and well-known program, does. Do you wish to futilely assert as you have with everyone else's problem that it is faulty drivers, or the tablet maker has something against Photoshop and so released drivers that target Photoshop CC specifically? That it is all a convuluted conspiracy against Photoshop CC?

All Photoshop expects is drivers that work correctly.

That may be true, but it is apparent from the lack of a proper fix and the inability of developers to assist in this matter compiled atop the error appearing nowhere but Photoshop CC that this is a specific problem related to Adobe's program. Photoshop expects working drivers, but I expect a productive and forward moving company that resolves errors. As no fix you have suggested (and what has that been, besides buying a new tablet, contacting makers, and singing Photoshop's praises?) has worked, I am ever more convinced that Photoshop CC has an issue, and I need to find a new program instead of chasing my tail trying to fix drivers that aren't broken. While I am sure you will continue to be unhelpful and inform me that I am wrong, and my tablet drivers are broken, as you have droned on like a spam bot for every other complaint, I would like other users seeking an answer to know that they are not alone, and that this error affects more than one type of tablet and driver.

https://forums.adobe.com/thread/1347674  <-- This link here shows several different tablet types that have an issue, though only Wacom was resolved. @Chris Cox, you may remember this as another time you ignorantly insisted Adobe was faultless, and another time that tablet developers have been helpful as far as they are capable without taking Photoshop apart and finding the bug, while Adobe has no support beyond pointing fingers.

Here's to hoping one day something more useful might appear! And until then, I suppose, using a program that works, i.e., any program but Photoshop CC.
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ruben romero

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Hello, guys please i ́m having EXACTLY same problem, its obviosly a photoshop bug, but i dont know how to fix it please did someone did it??
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Chris Cox

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No, it is not a Photoshop bug, because Photoshop has no control over the mapping that your tablet driver uses, hands to the OS, then hands to the application. The problem is entirely up to your tablet driver software (and maybe the hardware in some cases).
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Darthmarshie

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OK, well, as you can see, Chris up there is not very helpful and when I reached out to Genius (Along with a video I attached of the problem in action), they looked into it and then claimed it was a Photoshop problem. Both parties abdicating responsibility and neither providing a solution. In the end I ended up disabling one of my monitors when I wanted to use Photoshop and after a while I ran into some extra cash and bought another brand of tablet. Sorry I can't be more helpful! I know how frustrating it is. :(
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ruben romero

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Thank you so much for answering, yeah, he is not being helpful i hope someone else could tell me how to fix it, i have mousepen genius i608x it works perfectly with all softwares, even photoshop, only with brushes im having this problem i don ́t know what else to do, already set tablet to 1 screen and still nothing :(
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Chris Cox

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Unfortunately, Adobe cannot solve your third party tablet driver bugs.

Since Photoshop works correctly with other tablets, you know that the tablet interface in Photoshop is working correctly.
Since we know that the genius tablet driver has hacks specific to specific applications and versions of applications, saying that the driver works in other applications is meaningless.
Since only the driver can offset coordinates or change the mapping of tablet coordinates, you know that the problem can only exist within the driver software.

Yes, it is frustrating. But only your tablet maker can fix the drivers for your tablet.