maybe that is trivial but ... you have checked connector & cabling ? When you say black, that means the whole screen goes black, you can not see anything ?
re, wh Am 15.04.2014 20:25, schrieb Ryan Watson: > Hello All - > > Thank you for reading this post. I'm having difficulty troubleshooting this > problem. I have a minimal openSUSE install running X with a single Chromium > window open, full-screen, running a webapp. A typical kiosk-mode machine. > It has begun to happen with some regularity that a machine, upon user > interaction or possibly on its own, will flash a white screen. When the > user clicks, via a mouse-click, the screen will flicker black than back to > white. > > Nothing is logged via systemd journal of hardware issues. The x.org.log > contains no errors. Restarting X and Chromium do not reset the problem. The > only solution is to reset the PC. > > Uptime does not seem to be a facter as sometimes it happens a few hours > after restart, in one instance there was an uptime of 9 days before the > symptom emerged. > > We have x11vnc running attached to display :0 for remote troubleshooting -- > when a technician connects they see a perfectly normal desktop. Locally all > we see is white. > > Force unloading and reloading the i915 module has no affect. > > We have not been able to replicate/duplicate this in our lab which has led > to much difficulty in determining the cause and solution to the problem. > > We are completely at a loss on this issue. Any suggestions as to a course > of action we can take to repair this or troubleshoot it further? > > Regards, > W > > > * Lenovo M58 Desktop PC > * Intel GMA4500 > * i915 kernel module > * openSUSE 13.1 > * xorg-x11-server-7.6_1.14.3.901-4.1 > * xf86-video-intel-2.99.906-12.1 > * kernel-default-3.11.10-7.1 > > > Result of lspci -v: > > 00:02.0 VGA compatible controller: Intel Corporation 4 Series Chipset > Integrated Graphics Controller (rev 03) (prog-if 00 [VGA controller]) > Subsystem: Lenovo Device 3048 > Flags: bus master, fast devsel, latency 0, IRQ 45 > Memory at fc000000 (64-bit, non-prefetchable) [size=4M] > Memory at e0000000 (64-bit, prefetchable) [size=256M] > I/O ports at 1c70 [size=8] > Expansion ROM at <unassigned> [disabled] > Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- > Capabilities: [d0] Power Management version 2 > Kernel driver in use: i915 > Kernel modules: i915 > > 00:02.1 Display controller: Intel Corporation 4 Series Chipset Integrated > Graphics Controller (rev 03) > Subsystem: Lenovo Device 3048 > Flags: bus master, fast devsel, latency 0 > Memory at fc400000 (64-bit, non-prefetchable) [size=1M] > Capabilities: [d0] Power Management version 2 > > > > > _______________________________________________ > xorg@lists.x.org: X.Org support > Archives: http://lists.freedesktop.org/archives/xorg > Info: http://lists.x.org/mailman/listinfo/xorg > Your subscription address: %(user_address)s _______________________________________________ xorg@lists.x.org: X.Org support Archives: http://lists.freedesktop.org/archives/xorg Info: http://lists.x.org/mailman/listinfo/xorg Your subscription address: %(user_address)s
