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
