<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif">Hello All - <br><br></div><div class="gmail_default" style="font-family:verdana,sans-serif">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.<br>
<br></div><div class="gmail_default" style="font-family:verdana,sans-serif">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.<br>
<br>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.<br><br>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.<br>
<br></div><div class="gmail_default" style="font-family:verdana,sans-serif">Force unloading and reloading the i915 module has no affect. <br><br></div><div class="gmail_default" style="font-family:verdana,sans-serif">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.<br>
</div><div class="gmail_default" style="font-family:verdana,sans-serif"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif">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?<br>
<br></div><div class="gmail_default" style="font-family:verdana,sans-serif">Regards,<br></div><div class="gmail_default" style="font-family:verdana,sans-serif">W<br><br></div><div class="gmail_default" style="font-family:verdana,sans-serif">
<br></div><div class="gmail_default" style="font-family:verdana,sans-serif">* Lenovo M58 Desktop PC<br></div><div class="gmail_default" style="font-family:verdana,sans-serif">* Intel GMA4500<br></div><div class="gmail_default" style="font-family:verdana,sans-serif">
* i915 kernel module<br></div><div class="gmail_default" style="font-family:verdana,sans-serif">* openSUSE 13.1<br></div><div class="gmail_default" style="font-family:verdana,sans-serif">* xorg-x11-server-7.6_1.14.3.901-4.1<br>
</div><div class="gmail_default" style="font-family:verdana,sans-serif">* xf86-video-intel-2.99.906-12.1<br></div><div class="gmail_default" style="font-family:verdana,sans-serif">* kernel-default-3.11.10-7.1<br></div><div class="gmail_default" style="font-family:verdana,sans-serif">
<br></div><div class="gmail_default" style="font-family:verdana,sans-serif"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif">Result of lspci -v:<br><br>00:02.0 VGA compatible controller: Intel Corporation 4 Series Chipset Integrated Graphics Controller (rev 03) (prog-if 00 [VGA controller])<br>
Subsystem: Lenovo Device 3048<br> Flags: bus master, fast devsel, latency 0, IRQ 45<br> Memory at fc000000 (64-bit, non-prefetchable) [size=4M]<br> Memory at e0000000 (64-bit, prefetchable) [size=256M]<br> I/O ports at 1c70 [size=8]<br>
Expansion ROM at <unassigned> [disabled]<br> Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-<br> Capabilities: [d0] Power Management version 2<br> Kernel driver in use: i915<br> Kernel modules: i915<br>
<br>00:02.1 Display controller: Intel Corporation 4 Series Chipset Integrated Graphics Controller (rev 03)<br> Subsystem: Lenovo Device 3048<br> Flags: bus master, fast devsel, latency 0<br> Memory at fc400000 (64-bit, non-prefetchable) [size=1M]<br>
Capabilities: [d0] Power Management version 2<br></div><div class="gmail_default" style="font-family:verdana,sans-serif"></div><br>-- <br><div dir="ltr"><span style="font-family:arial narrow,sans-serif"><i>minuteKEY IT - Helping you help keys help others</i> since 2008</span><br>
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