Affects me too (Integrated Graphics Chipset: Intel(R) Sandybridge Mobile (GT2), comes with a Lenovo G570 laptop).
The "BUG..." happens occasionally, when I disable external VGA screen, before I take out the VGA plug: [ 65823.594] BUG: triggered 'if (!dev->valuator || dev->valuator->numAxes < 2)' BUG: ../../dix/getevents.c:850 in scale_to_desktop() [ 65823.594] Backtrace: [ 65823.710] 0: /usr/bin/X (xorg_backtrace+0x26) [0x7f0392d01956] [ 65823.710] 1: /usr/bin/X (0x7f0392b79000+0x6248e) [0x7f0392bdb48e] [ 65823.710] 2: /usr/bin/X (0x7f0392b79000+0x630fd) [0x7f0392bdc0fd] [ 65823.710] 3: /usr/bin/X (GetPointerEvents+0xe2) [0x7f0392bdd492] [ 65823.710] 4: /usr/bin/X (0x7f0392b79000+0x1731b6) [0x7f0392cec1b6] [ 65823.710] 5: /usr/bin/X (miPointerWarpCursor+0xe7) [0x7f0392cec637] [ 65823.710] 6: /usr/bin/X (0x7f0392b79000+0x87311) [0x7f0392c00311] [ 65823.710] 7: /usr/bin/X (0x7f0392b79000+0x173b8c) [0x7f0392cecb8c] [ 65823.710] 8: /usr/bin/X (0x7f0392b79000+0x1122e3) [0x7f0392c8b2e3] [ 65823.710] 9: /usr/bin/X (0x7f0392b79000+0xfd1ce) [0x7f0392c761ce] [ 65823.710] 10: /usr/bin/X (RRPointerScreenConfigured+0x75) [0x7f0392c763f5] [ 65823.710] 11: /usr/bin/X (RRTellChanged+0x11b) [0x7f0392c6fb9b] [ 65823.710] 12: /usr/bin/X (RRCrtcSet+0x353) [0x7f0392c70cd3] [ 65823.711] 13: /usr/bin/X (ProcRRSetCrtcConfig+0x3f3) [0x7f0392c71c73] [ 65823.711] 14: /usr/bin/X (0x7f0392b79000+0x4e9c1) [0x7f0392bc79c1] [ 65823.711] 14: /usr/bin/X (0x7f0392b79000+0x4e9c1) [0x7f0392bc79c1] [ 65823.711] 15: /usr/bin/X (0x7f0392b79000+0x3d7ea) [0x7f0392bb67ea] [ 65823.711] 16: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed) [0x7f0390d3476d] [ 65823.711] BUG: triggered 'if (!dev->valuator || dev->valuator->numAxes < 2)' BUG: ../../dix/getevents.c:850 in scale_to_desktop() The message is repeated each 200ms and goes on forever. X gets completely stuck when this happen. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/989347 Title: [BUG: ../../dix/getevents.c:850 in scale_to_desktop()] black screen if second monitor is connected in HDMI. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/989347/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
