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