gerdrive.blogg.se - Snagit 13 lockup

As a result, I can move the mouse in that horizontally constrained The bug only occurs on the top display, in a horizontal arrangement, the bug only occurs on the left display. Second, I believe this is a DWM issue because the problem persists through driver updates but not sleep and wake, at which point I believe theĪs for the corruption provably being a bounds checking issue, on occasion I have caught the mouse as I am moving it right to left, and noticed corruption and stopped it right on the border. The problem will only occur on the left display, wherein the cursor, if drawn as an object on the screen, would appear on both displays, but due to the way the display path works, is only drawn on one display. That is, if you move your mouse left to right, the cursor will gradually disappear beginning on the right, and then when the top left pixel is no longer on the left display, the entire cursor will appear

First, because the problem only occurs on a display in which the cursor will be partially drawn and partially offscreen, where the other display would be displaying the cursor if theĬursor could be visible on two displays simultaneously. This leads me to believe that it is a bounds-checking issue in the DWM. The buffer that stores the cursor information per display appears to be independent of the display driver, or at least the portion affected by a reinstall. Reinstalling a display driver does not fix the problem. If the cursor becomes corrupted on the left horizontal display, it will remain in that state until I reboot, sleep and wake, and possibly a driverĬrash would fix it.

Changing the display layout, including unplugging and re-plugging in displays does not reset the problem.

The left display, and when doing the left display and the offset HDTV, the problem can only occur on the HDTV. While my current video card setup limits me to two displays concurrently, when using the two horizontal displays the problem only occurs on

In my three display setup, I have two displays horizontal from one another and wall-mounted HDTV above and offset.

I have determined this by noticing some things about how the problem appears. Goes to sleep, although I am not yet certain if the bug remains after the display driver crashes and is restored.

Having experimented with this problem for some time, I can almost certainly declare it is an error in the or lack of bounds-checking when drawing the cursor, and that the buffer for each cursor is display-dependent, and this buffer is cleared when the computer