<div dir="ltr">I will put into a few scenarios:<div><br></div><div><br></div><div>1 - LVDS1 + DP1</div><div><br></div><div>Dell <span style="font-family:arial,sans-serif;font-size:12.800000190734863px">U2713HM using a Display Port cable (display) to a Mini Display Port (Notebook).</span></div>
<div><span style="font-family:arial,sans-serif;font-size:12.800000190734863px">No adapters.</span></div><div><span style="font-family:arial,sans-serif;font-size:12.800000190734863px"><br></span></div><div><span style="font-family:arial,sans-serif;font-size:12.800000190734863px">This is where the logs belongs to.</span></div>
<div><span style="font-family:arial,sans-serif;font-size:12.800000190734863px"><br></span></div><div><span style="font-family:arial,sans-serif;font-size:12.800000190734863px">Some random time after boot (15min, 1hour), t</span><span style="font-family:arial,sans-serif;font-size:12.800000190734863px">he DP1 screen will blank for a period between 2s to 5s and come back again.</span></div>
<div><font face="arial, sans-serif">This will keep repeating for 5 to 15 min endless.</font></div><div><font face="arial, sans-serif"><br></font></div><div><br></div><div><br></div><div><font face="arial, sans-serif">2 - LVDS1 + HDMI1</font></div>
<div><font face="arial, sans-serif"><br></font></div><div>In this case, the U2713M display is using the HDMI port and a HDMI do mini Display Port adapter.</div><div><br></div><div>I can get the 2560x1440 resolution only if I lower the frequence to 41hz or lower (which I believe is a HDMI limitation).</div>
<div><br></div><div>No problem at all.</div><div><br></div><div><br></div><div>3 - LVDS1 + DP1 + VIRTUAL2</div><div><br></div><div>Same as (1) with and extra screen on bumblebee: intel-virtual-output -b</div><div><br></div>
<div>This time the U2713M display enters in sleep mode instead of blanking and does not come back (by itself).</div><div>I believe this is the same trigger from (1), but for some reason it is not just blanking.</div><div>
<br></div><div>To revert this, I have to use xrandr to turn the display off and on (--auto).</div><div><br></div><div><br></div><div>4 - LVDS1 + HDMI1 + VIRTUAL2</div><div><br></div><div>Same as (2) with bumblebee.</div>
<div>
No problem at all too.</div><div><br></div><div><br></div><div>I am not sure if this could be a faulty display or cable if not the driver. (or how to detect it).</div><div><br></div><div><br></div><div><span style="font-family:arial,sans-serif;font-size:12.800000190734863px">Thanks again.
</span></div><div><span style="font-family:arial,sans-serif;font-size:12.800000190734863px">-rsd</span></div><div><span style="font-family:arial,sans-serif;font-size:12.800000190734863px"><br></span></div><div><br></div>
<div><br></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">2013/12/11 Jani Nikula <span dir="ltr"><<a href="mailto:jani.nikula@linux.intel.com" target="_blank">jani.nikula@linux.intel.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">On Tue, 10 Dec 2013, Raul Dias <<a href="mailto:raul@dias.com.br">raul@dias.com.br</a>> wrote:<br>
> Hello,<br>
><br>
</div><div class="im">> The dmesg for the boot is this:<br>
> <a href="http://pastebin.com/aXJQiprL" target="_blank">http://pastebin.com/aXJQiprL</a><br>
<br>
</div>I was hoping for the dmesg from the start (which lets me check the<br>
kernel command line and i915 initialization).<br>
<div class="im"><br>
> The dmesg when the flashing started to occur:<br>
> <a href="http://pastebin.com/GkRcpK80" target="_blank">http://pastebin.com/GkRcpK80</a><br>
<br>
</div>I don't see anything particularly wrong with that. There's the<br>
occasional dimming of the backlight - that's not what you're referring<br>
to is it?<br>
<br>
Could you describe the problem a bit more please?<br>
<br>
BR,<br>
Jani.<br>
<div class="HOEnZb"><div class="h5"><br>
<br>
> I kept the config a simple as possible. No bumblebee, just LVDS1 and DP1<br>
> without adaptors.<br>
><br>
> my Xorg.0.log is this:<br>
> <a href="http://pastebin.com/2vK37TNr" target="_blank">http://pastebin.com/2vK37TNr</a><br>
><br>
><br>
><br>
> Thanks!<br>
> -rsd<br>
><br>
><br>
> 2013/12/10 Jani Nikula <<a href="mailto:jani.nikula@linux.intel.com">jani.nikula@linux.intel.com</a>><br>
><br>
>> On Mon, 09 Dec 2013, Raul Dias <<a href="mailto:raul@dias.com.br">raul@dias.com.br</a>> wrote:<br>
>> > Hello,<br>
>> ><br>
>> > I have a Dell L502x which have a optimus Graphic Pack:<br>
>> ><br>
>> > 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core<br>
>> > Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA<br>
>> > controller])<br>
>> > Subsystem: Dell Device 050e<br>
>> > Flags: bus master, fast devsel, latency 0, IRQ 51<br>
>> > Memory at f1400000 (64-bit, non-prefetchable) [size=4M]<br>
>> > Memory at e0000000 (64-bit, prefetchable) [size=256M]<br>
>> > I/O ports at 4000 [size=64]<br>
>> > Expansion ROM at <unassigned> [disabled]<br>
>> > Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-<br>
>> > Capabilities: [d0] Power Management version 2<br>
>> > Capabilities: [a4] PCI Advanced Features<br>
>> > Kernel driver in use: i915<br>
>> ><br>
>> ><br>
>> > Using driver:<br>
>> > 2.99.905+git20131023.b70390b4<br>
>> ><br>
>> > When I use a DELL U2713HM Monitor on the DisplayPort, it will flash<br>
>> blank<br>
>> > for 5 seconds in a 10 minutes interval.<br>
>> > The monitor is at 2560x1440 (60hz).<br>
>> ><br>
>> > This is not ideal, but I can live with.<br>
>> ><br>
>> ><br>
>> > The big problem is when using bumblebee with intel-virtual-output -b.<br>
>> ><br>
>> > In this case the monitor will enter in energy save state instead.<br>
>> ><br>
>> > The only way back is to turn it off and on with xrandr:<br>
>> ><br>
>> > xrandr --output DP1 --off<br>
>> > xrandr --output DP1 --auto<br>
>> ><br>
>> > The odd thing is if I use instead a Mini DisplayPort adapter to a Dual<br>
>> DVI<br>
>> > output, this problem will not happen.<br>
>> ><br>
>> > The downside of this solution is that I will need to add a new mode at<br>
>> 41hz<br>
>> > with:<br>
>> ><br>
>> > xrandr --newmode "2560x1440_41" 162.00 2560 2608 2640 2720 1440<br>
>> > 1443 1448 1468 +hsync +vsync<br>
>> ><br>
>> ><br>
>> > So, What I am looking at is the source of the problem:<br>
>> ><br>
>> > If the source of the problem is the driver, which debug information<br>
>> should<br>
>> > I provide?<br>
>><br>
>> Please provide dmesg with drm.debug=0xe module parameter from early boot<br>
>> to the problem. If the problem takes a long time to reproduce, you can<br>
>> provide two dmesgs, one from early boot and another covering the<br>
>> problem.<br>
>><br>
>> BR,<br>
>> Jani.<br>
>><br>
>><br>
>> ><br>
>> > Or is it a problem with the DP of the monitor?<br>
>> ><br>
>> > Or a problem with the Display Card?<br>
>> ><br>
>> > Or should I lower the frequency in the DisplayPort (as with the DVI)?<br>
>> ><br>
>> ><br>
>> > thanks<br>
>> > -rsd<br>
>> > _______________________________________________<br>
>> > Intel-gfx mailing list<br>
>> > <a href="mailto:Intel-gfx@lists.freedesktop.org">Intel-gfx@lists.freedesktop.org</a><br>
>> > <a href="http://lists.freedesktop.org/mailman/listinfo/intel-gfx" target="_blank">http://lists.freedesktop.org/mailman/listinfo/intel-gfx</a><br>
>><br>
>> --<br>
>> Jani Nikula, Intel Open Source Technology Center<br>
>><br>
<br>
--<br>
Jani Nikula, Intel Open Source Technology Center<br>
</div></div></blockquote></div><br></div>