[Mesa-users] Flickering with Intel i7-5700 (HD 5600) and Samsung 156HL01-102 panel

[Jordi Salvat i Alabart]

Noone? Not even a hint on where I could ask for help?

:'-(



2015-10-26 0:18 GMT+01:00 Jordi Salvat i Alabart <
jordi.salvat.i.alabart at gmail.com>:

> Hi,
>
> My new MSI PE60 2QE laptop mounts an Intel i7-5700HQ, which carries the
> Integrated Graphics Chipset 5600, and a Samsung 156HL01-102 panel.
> The display works perfectly when I boot with the "nomodeset" parameter in
> the kernel command line -- but then I'm forced to use the framebuffer
> driver, which doesn't allow multiple monitors.
>
> With KMS enabled (by removing the "nomodeset" parameter), X starts
> correctly with the "intel" driver and I can use multiple monitors, but the
> laptop's panel shows an irregular flicker, ranging from occasional
> flickering horizontal black lines (which are really annoying) to a constant
> flashing & flickering making the display all but unusable.
>
> The flickering and flashing is less noticeable, but still there, in the
> text-mode VTs, even if I never start X. So the problem has to be in the
> kernel or modules, not in the X drivers.
>
> External monitors connected to the DP or HDMI ports don't show any
> flickering.
> Things I have tried (among many others I've discovered were irrelevant):
>
>    - Setting a number different video modes using xrandr
>    - Booting with Kernel 3.19.0.25 with i915.enable_IPS=0 as suggested
>    here: Screen flickering on Ubuntu Gnome 14.04 - 4K resolution
>    <http://askubuntu.com/questions/680703/screen-flickering-on-ubuntu-gnome-14-04-4k-resolution>
>    - Booting with i915.powersave=0
>    - Booting with acpi_osi=Linux
>    - Upgrading to Ubuntu Vivid Vervet (kernel 3.19.0 with a backported
>    i915 module)
>    - Upgrading to Ubuntu Willy Werewolf (kernel 4.2.0)
>
> None of these have helped.
>
> I'm attaching kern.log for a full boot sequence with drm.debug=0xf.
>
> What steps can you recommend to try to diagnose and solve this problem?
> Thanks a lot for your help,
>
> Jordi
>
>
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