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Description of problem: On my RHEL 6 dual monitor system, occasionaly the mouse cursor will vanish when moved to the right hand screen. Mouse cursor is always normal on the left hand screen. The windows get focus as normal (focus follows mouse) but on the right screen there is no image to visually tell where the mouse is. This look very much like Bug #537065 Version-Release number of selected component (if applicable): Kernel: 2.6.32-131.12.1.el6.x86_64 xorg-x11-drv-nouveau-0.0.16-9.20110107gitb795ca6.el6.x86_64 01:00.0 VGA compatible controller: nVidia Corporation GT218 [GeForce 310] (rev a2) (prog-if 00 [VGA controller]) Subsystem: Device 1642:3899 Flags: bus master, fast devsel, latency 0, IRQ 16 Memory at fa000000 (32-bit, non-prefetchable) [size=16M] Memory at c0000000 (64-bit, prefetchable) [size=256M] Memory at d0000000 (64-bit, prefetchable) [size=32M] I/O ports at e000 [size=128] Expansion ROM at fb000000 [disabled] [size=512K] Capabilities: [60] Power Management version 3 Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [78] Express Endpoint, MSI 00 Capabilities: [b4] Vendor Specific Information <?> Capabilities: [100] Virtual Channel <?> Capabilities: [128] Power Budgeting <?> Capabilities: [600] Vendor Specific Information <?> Kernel driver in use: nouveau Kernel modules: nouveau, nvidiafb How reproducible: Sporatically. Normally after a few days or weeks of being logged into the system.
It's difficult to say for certain, but I believe this bug should be fixed already and will be available in 6.2.
Since RHEL 6.2 External Beta has begun, and this bug remains unresolved, it has been rejected as it is not proposed as exception or blocker. Red Hat invites you to ask your support representative to propose this request, if appropriate and relevant, in the next release of Red Hat Enterprise Linux.
Several people at our company have seen this as well. VMware Player seems to trigger the problem quite often. The messages below resulted and the cursor would disappear when it was on one of the two monitors. After the problem showed up, logging out to try to recover resulted in just a black screen and I had to reboot. Hopefully 6.2 resolves this. Oct 18 10:47:33 sed192n65 kernel: [drm] nouveau 0000:60:00.0: EvoCh 0 Mthd 0x0000 Data 0x00000400 (0x0002 0x01) Oct 18 10:49:56 sed192n65 kernel: [drm] nouveau 0000:60:00.0: no space while unhiding cursor Oct 18 10:50:01 sed192n65 kernel: [drm] nouveau 0000:60:00.0: no space while hiding cursor Oct 18 10:50:02 sed192n65 kernel: [drm] nouveau 0000:60:00.0: no space while unhiding cursor Oct 18 10:50:02 sed192n65 kernel: [drm] nouveau 0000:60:00.0: no space while hiding cursor Oct 18 10:50:03 sed192n65 kernel: [drm] nouveau 0000:60:00.0: no space while unhiding cursor Oct 18 10:50:03 sed192n65 kernel: [drm] nouveau 0000:60:00.0: no space while unhiding cursor
I have this exact problem with a dual screen setup using Nvidia graphics adapter. From what I understand, this has already been fixed (https://bugs.freedesktop.org/show_bug.cgi?id=35360). My problem is that I cannot use my dual screen setup because of this bug. This has also been reported in Fedora as far back as May 2010 (Bug 593695). If this won't really be fixed in the near future then my solution will be to go for the Nvidia binary drivers as the problem doesn't exist there. It isn't what I want to do but I am out of options it seems. Funny that we are so intent on wanting open drivers so problems can be fixed quickly etc. This problem has been around for quite some time but it is still there. And the only real fix for me is to use binary drivers...
This should be fixed in RHEL 6.2, can you confirm?
I've not been hit by this bug recently and I'm running 2.6.32-131.17.1.el6.x86_64. Any other data points?
Thanks for the updates, closing :)