This is a crosspost from subforum 17, but over here you hardware experts are probably really knowledgeable. That thread 644746 in forum 17 is useful because it contains several problems that any Dell 5378 newbie might encounter - and solves them one by one. But now to my ...
GRAPHICS PIXEL RESOLUTION question:
akrueger wrote:Got a 4K screen working on Windows, on a Dell 13-5378 (Inspiron 13 5000 i5).
3840 pixels × 2160 (via HDMI, only 30Hz because 60Hz would need DisplayPort).
Now same hardware, with Debian stretch testing
... I only get a max resolution of 2048 x 1152
My Debian & machine is this:
There is more info about this same machine in this thread.Code: Select all
uname -a Linux Dell13-5378 4.9.0-2-amd64 #1 SMP Debian 4.9.18-1 (2017-03-30) x86_64 GNU/Linux inxi -GSM System: Host: Dell13-5378 Kernel: 4.9.0-2-amd64 x86_64 (64 bit) Desktop: Cinnamon 3.2.7 Distro: Debian GNU/Linux 9 (stretch) Machine: Device: laptop System: Dell product: Inspiron 13-5378 Mobo: Dell model: 0P87CH v: A00 UEFI: Dell v: 1.6.1 date: 02/13/2017 Battery BAT0: charge: 36.8 Wh 109.3% condition: 33.7/36.8 Wh (92%) Graphics: Card: Intel Device 5916 Display Server: X.Org 1.19.2 drivers: modesetting (unloaded: fbdev,vesa) Resolution: 1920x1080@60.05hz, 2048x1152@60.00hz GLX Renderer: Mesa DRI Intel HD Graphics 620 (Kabylake GT2) GLX Version: 3.0 Mesa 13.0.6
What to do now? I had the same problem = max resolution of 2048 x 1152 with an older Laptop - that Intel 3000 card just cannot render more pixels. However, this new one has an Intel 620, and as mentioned, I got the full 4K working on Windows. Beautiful. Not gonna live on Windows much longer though - so please help me on Debian now. Thanks.
Thanks a lot!
EDIT: Tried:Then following some forum thread, I've tried this:Code: Select all
xrandr --output HDMI-1 --mode 3840x2160_30.00 xrandr: cannot find mode 3840x2160_30.00
But:Code: Select all
cvt 3840 2160 30.00 # 3840x2160 29.98 Hz (CVT) hsync: 65.96 kHz; pclk: 338.75 MHz Modeline "3840x2160_30.00" 338.75 3840 4080 4488 5136 2160 2163 2168 2200 -hsync +vsync xrandr --newmode "3840x2160_30.00" 338.75 3840 4080 4488 5136 2160 2163 2168 2200 -hsync +vsync xrandr --addmode HDMI-1 3840x2160_30.00 xrandr
Code: Select all
xrandr --output HDMI-1 --mode 3840x2160_30.00 xrandr: Configure crtc 0 failed