On Mon, May 29 2017, mp wrote:
> allan gottlieb wrote:
>
>> Dell latitude E7450 with intel 915 graphics, gnome 3, systemd.
>>
>> lspci:
>> VGA compatible controller: Intel Corporation HD Graphics 5500
>> (rev 09)
>
> I think i965 is the better driver for your system, not i915.
>
>> I just bought a new dell 34" curved monitor (U3417).
>> It's max res is 3440X2560, but at that res it complains that no
> signal
>> is coming. It works fine at other res (including 2560x1440).
>
> Which connector are you using? HDMI output of your laptop is most
> likely limited to 2560x1600. I checked and many Latitude ultrabooks
> have a displayport (of mini variety generally) output. If you use
> that connector you may get the resolution you wanted (you may still
> need newer drivers).
>
>> The dell manual says to get new drivers and I am indeed running
> an old
>> kernel, 3.18.16-gentoo. The highest stable is 4.9.16 and I am
>> planning to build and employ it this summer.
>>
>> Has high res support been added to the intel graphics driver?
The "failure" occurred when using the dell docking station and display
port from the dock to the monitor. I booted into windows (first time in
over a year) and the same cabling worked perfectly for 3440x2500.
I have now ditched the dock and am running hdmi directly from the laptop
to the monitor and again success at 3440x2500.
I will soon try Canek's suggestion of setting VIDEO_CARDS and using the
built-in drivers.
thanks,
allan
