XPS13 9300 connecting display to monitor via HDMI

makem · 05-09-2021, 04:42 AM

Quote:

Originally Posted by mrmazda

video=DP-1:1920x1080@60D is exactly what you type after you type a space, following splash, before the quote mark. Or put it in between quiet and splash, or before quiet, anywhere between the quotes, as long as whitespace separates it from what's already there, or you remove what's already there. Without quiet and splash, and with plymouth=0 additionally added, you'll automatically see boot messages instead of the Windows-ese graphic curtain hiding the boot messages that might suggest there is a problem with the init process, as well as indicating init is progressing.

I added the video=DP-1:1920x1080@60D after the word display with a space intervening and inside the quotes on the GRUB_CMDLINE_LINUX_DEFAULT= line.

I made the file /etc/X11/Xsession.d/95-setup containing the line xrandr --output DP-1 --primary

With the display set to primary on the monitor I rebooted. This resulted in a blank screen on the monitor.

I made a test user, did not change any settings and rebooted. This also resulted in a blank monitor screen.

I am beginning to think it may be best to consult the laptop forum rather than start a new X session the starting of which I have no knowledge.

Would you agree?

mrmazda · 05-09-2021, 06:47 AM

Quote:

Originally Posted by makem

I added the video=DP-1:1920x1080@60D after the word display with a space intervening and inside the quotes on the GRUB_CMDLINE_LINUX_DEFAULT= line.

Did you first try testing video=DP-1:1920x1080@60D via the E key at the Grub menu, to add it to the linu line? Adding it to GRUB_CMDLINE_LINUX_DEFAULT= can only work by subsequently regenerating /boot/grub/grub.cfg, which is normally done by running update-grub or grub-mkconfig or installing a new kernel or otherwise causing initrd regeneration, or by manually editing grub.cfg to include it. Until then, it needs to be added using the E key at the Grub menu for each boot you wish it used.

Quote:

I am beginning to think it may be best to consult the laptop forum rather than start a new X session the starting of which I have no knowledge. Would you agree?

Yes, if after employing video= as instructed doesn't help.

makem · 05-09-2021, 08:07 AM

Quote:

Originally Posted by mrmazda

Did you first try testing video=DP-1:1920x1080@60D via the E key at the Grub menu, to add it to the linu line? Adding it to GRUB_CMDLINE_LINUX_DEFAULT= can only work by subsequently regenerating /boot/grub/grub.cfg, which is normally done by running update-grub or grub-mkconfig or installing a new kernel or otherwise causing initrd regeneration, or by manually editing grub.cfg to include it. Until then, it needs to be added using the E key at the Grub menu for each boot you wish it used.

Yes, if after employing video= as instructed doesn't help.

I added video=DP-1:1920x1080@60D the the place I said in my previous post. I unaware of 'E' key testing so did not. After adding that I ran grub-mkconfig

I think I have followed and made the changes you have suggested correctly.

I thank you for your assistance and what I have learned from it. I will take the problem to the laptop forum at some stage.

makem · 05-11-2021, 03:00 PM

I have just installed the latest update for xubuntu and now I don't have any access whatsover to the monitor!

It shows in the display box but its configurations are blank.

Code:

makem@XPS-13-9300:~$ xrandr --auto
xrandr: Output DP-1 is not disconnected but has no modes
xrandr: cannot find preferred mode
makem@XPS-13-9300:~$

Using a live xubuntu USB I am able to mirror the laptop on the monitor. The monitor configuration is correct in the Display configuration.

It appears the update broke the connection I had to the monitor.

I removed the entry video=DP-1:1920x1080@60D from the grub GRUB_CMDLINE_LINUX_DEFAULT= line and disconnected the HDMI monitor connection then rebooted. Now the Display settings allow me to mirror the laptop so I can at least use the monitor. However, to do that I must disconnect the HDMI adapter and reinsert it.

I have requested this thread be moved to the laptop forum.