Comment 29 for bug 583760

I have also had the same problems reported in this bug report. My setup is:
OS: Ubuntu Maverick 10.10 64-bit
Kernel: 2.6.35-30-generic
Video: 01:00.0 VGA compatible controller: nVidia Corporation G92 [GeForce 8800 GT] (rev a2)
Monitors: Dual ASUS VK266H in DVI-D mode.

When the mouse cursor dissapears on my primary screen but still works on my secondary screen, the follow dmesg occurs:

--------------------------------------
Sep 8 21:37:04 qpp-iscsi-maverick64 kernel: [18105.406442] [drm] nouveau 0000:01:00.0: EvoCh 0 Mthd 0x0000 Data 0x00000400 (0x0002 0x01)
Sep 8 21:54:22 qpp-iscsi-maverick64 kernel: [19144.134753] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
Sep 8 21:54:22 qpp-iscsi-maverick64 kernel: [19144.204525] [drm] nouveau 0000:01:00.0: no space while hiding cursor
Sep 8 21:54:22 qpp-iscsi-maverick64 kernel: [19144.278499] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
Sep 8 21:54:23 qpp-iscsi-maverick64 kernel: [19145.047375] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
Sep 8 21:54:23 qpp-iscsi-maverick64 kernel: [19145.127030] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
Sep 8 21:54:24 qpp-iscsi-maverick64 kernel: [19145.719052] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
Sep 8 21:54:24 qpp-iscsi-maverick64 kernel: [19145.807039] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
Sep 8 21:54:30 qpp-iscsi-maverick64 kernel: [19151.475054] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
Sep 8 21:54:30 qpp-iscsi-maverick64 kernel: [19152.003313] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
Sep 8 21:54:31 qpp-iscsi-maverick64 kernel: [19152.923499] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
Sep 8 21:54:31 qpp-iscsi-maverick64 kernel: [19153.005741] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
Sep 8 21:54:32 qpp-iscsi-maverick64 kernel: [19153.287133] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
Sep 8 21:54:32 qpp-iscsi-maverick64 kernel: [19153.367768] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
Sep 8 21:54:32 qpp-iscsi-maverick64 kernel: [19153.911544] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
Sep 8 21:54:32 qpp-iscsi-maverick64 kernel: [19153.991517] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
Sep 8 21:54:33 qpp-iscsi-maverick64 kernel: [19155.265350] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
Sep 8 21:54:34 qpp-iscsi-maverick64 kernel: [19155.344138] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
Sep 8 21:54:34 qpp-iscsi-maverick64 kernel: [19155.815973] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
Sep 8 21:54:34 qpp-iscsi-maverick64 kernel: [19155.895518] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
Sep 8 21:54:40 qpp-iscsi-maverick64 kernel: [19161.432130] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
Sep 8 21:54:40 qpp-iscsi-maverick64 kernel: [19161.511591] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
Sep 8 21:54:46 qpp-iscsi-maverick64 kernel: [19168.272217] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
--------------------------------------

No other weird messages pop up in Xorg.0.log or in .xsession-errors.

lspci output:
----------------------
00:00.0 Host bridge: ATI Technologies Inc RX780/RX790 Chipset Host Bridge
00:02.0 PCI bridge: ATI Technologies Inc RD790 PCI to PCI bridge (external gfx0 port A)
00:05.0 PCI bridge: ATI Technologies Inc RD790 PCI to PCI bridge (PCI express gpp port B)
00:12.0 SATA controller: ATI Technologies Inc SB600 Non-Raid-5 SATA
00:13.0 USB Controller: ATI Technologies Inc SB600 USB (OHCI0)
00:13.1 USB Controller: ATI Technologies Inc SB600 USB (OHCI1)
00:13.2 USB Controller: ATI Technologies Inc SB600 USB (OHCI2)
00:13.3 USB Controller: ATI Technologies Inc SB600 USB (OHCI3)
00:13.4 USB Controller: ATI Technologies Inc SB600 USB (OHCI4)
00:13.5 USB Controller: ATI Technologies Inc SB600 USB Controller (EHCI)
00:14.0 SMBus: ATI Technologies Inc SBx00 SMBus Controller (rev 14)
00:14.1 IDE interface: ATI Technologies Inc SB600 IDE
00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA)
00:14.3 ISA bridge: ATI Technologies Inc SB600 PCI to LPC Bridge
00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge
00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor HyperTransport Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Miscellaneous Control
00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Link Control
01:00.0 VGA compatible controller: nVidia Corporation G92 [GeForce 8800 GT] (rev a2)
02:00.0 SATA controller: Marvell Technology Group Ltd. 88SE9123 PCIe SATA 6.0 Gb/s controller (rev 10)
02:00.1 IDE interface: Marvell Technology Group Ltd. 88SE9123 PCIe SATA 6.0 Gb/s controller (rev 10)
03:05.0 FireWire (IEEE 1394): Texas Instruments TSB43AB23 IEEE-1394a-2000 Controller (PHY/Link)
03:07.0 Ethernet controller: Intel Corporation 82541PI Gigabit Ethernet Controller (rev 05)
----------------------------------------------------------------------

Same thing happens just like the other people mention: No switching to VT's, use of monitors program crashes machine, happens only after running the machine for some hours.

I think I triggerred the bug this time when I had a qemu virtual machine running (actually three at the same time) and I was moving the mouse in and out of the virtual machine in usb tablet mode.

I am currently testing patched kernel 2.6.35-30-generic #55~lp583760v201107071554ller (rev 10) so lets wait a week and see what happens.

Quinn