My external monitor, connected via HDMI was working fine but now is not being detected (it says 'No video input'). I'm pretty sure I didn't make any changes to make it stop - it was working on the same setup yesterday.
I'm a pretty new linux user and also don't know much about graphics hardware and drivers. Appreciate any help, I'd like to understand what's going on!
I'm running Ubuntu 16.04.3 kernel 4.10.0-33
lshw -c video gives:
*-display
description: VGA compatible controller
product: Sky Lake Integrated Graphics
vendor: Intel Corporation
physical id: 2
bus info: pci#0000:00:02.0
version: 07
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:124 memory:f0000000-f0ffffff memory:e0000000-efffffff ioport:e000(size=64) memory:c0000-dffff
I've tried booting from grub into kernel 4.8.0 and the monitor still wasn't detected.
I've also tried to no avail:
sudo apt-get update
sudo apt-get install --reinstall xserver-xorg-video-intel xserver-xorg-core
sudo dpkg-reconfigure xserver-xorg
I've also tried running the Intel graphics update tool and this also hasn't solved anything.
EDIT: It seems like I get the 'No video input' probelm if I plug in the HDMI cord before the computer has finished booting.
Pretty much the only answer one can give here based on the available information is, try checking the display cables, and, if that doesn't help, file a bug. Debugging display problems like this can be fairly involved, with several cycles of requesting and providing more information. That doesn't really work all that well here.
The alternatives for filing the bug are Ubuntu Launchpad and drm/i915 upstream. Upstream has the best knowledge about the driver and the hardware, but, depending on the issue, you might be expected to build and run the userspace components or the kernel from upstream git repositories.
I come across the problem and solve it with exactly the same card (i had same lshw -c video) by searching the NVIDIA X-Server settings (search inside apps) on my Ubuntu 16 LTS and activate the NVIDIA drivers for this card (I have a NVIDIA GEFORCE GTX)
After i log out and i have a bad errors display and i was blocked " this computer is running in low display mode" .
I just switch off the computer and restart it...and taatatatat HDMI was working and was able to display on my external Sansumg 27''
I had the exact same issue as OP. lshw not showing HDMI port, nada. Reinstalling xserver* did not work either.
May the gods of stack overflow smile upon you for that EDIT line, because plugging only after boot was complete, it did work for me as well.
This is quite interesting, as I am running 20.04. This issue came out of nowhere, just turned on the computer and voila, it was not working. There had been no updates, no changes that could affect this during previous session.
Would love to know if someone else has bumped into this problem.
Related
I tried setting up Nannou following the instructions here.
I am running Debian Buster on a MacBook with an NVIDIA graphics card (GK107M [GeForce GT 750M Mac Edition]).
I tried running the example and get the error
thread 'main' panicked at 'could not build default app window: NoAvailableAdapter'
It seems this is an error when Nannou tries to open a window -- something about its communication with the window manager (Gnome on xOrg), or something about vulcan-tools.
Any ideas for how to debug this?
The issue is that I was using the open-source Nouveau driver for my graphics card (the default on Debian) which does not currently support Vulkan, which is required for Nannou.
By installing the proprietary nvidia graphics driver, the problem was resolved.
I was able to install the nvidia driver by running
apt install nvidia-driver,
and then rebooting my computer,
as described in this tutorial https://linuxconfig.org/how-to-install-nvidia-driver-on-debian-10-buster-linux
Now nannou works :)
I'm using the following configuration:
Linux Mint 17.3 Cinnamon 2.8.6
kernel 3.19.0-32-generic
amd radeon r5 m330
driver: xserver-xorg-video-ati v 1:7.3.0-1ubuntu3.1
Eclipse Version: Mars.1 Release (4.5.1)
Build id: 20150924-1200
When I scroll the page I obtain this graphical problem (you can see the code duplicated, I imagine is a refresh problem of the GPU):
How can I solve the problem? I also tried to used fglrx-updates v. 2:15.200, but i didn't solve anything
I also tried to use an external monitor (samsung screen 23" connected with an hdmi) instead of the laptop screen but the problem doesn't goes away.
That seems to be related to libgtk3 usage in Linux Mint which is somewhat incompatible with Eclipse.
I had the same problem and I cured it adding:
--launcher.GTK_version
2
in eclipse.ini before --launcher.appendVmargs.
Unfortunately that doesn't seem to be the whole story as I still have "strange" crashes, but might be JavaFX-related, so YMMV.
im running Ubuntu 14.04.1 LTS (desktop), on an embedded device (Odroid U3) and
on boot, my 3G usb modem is seen as a ttyACM0 / ttyACM1 device, which is correct.
Post boot i am able to simply run wvdial..and from there I can get a connection...
I am running my system headless, and would ideally like to get the OS "converted" to more
of a server configuration(smaller) if possible. I have tried running the
the ubuntu server version here viewtopic.php?f=77&t=5123, along with
multiple versions of debian(7 / 7.4) but neither will detect the usb modem correctly on boot.
I am a newbie to linux, and the only thing that I have tried is
trying to force load some of the kernel modules on boot ( /etc/modules ) to try to
alter the detection of the device on boot. (cdc_acm, usbserial, ppp....etc), no luck.
On the ubuntu server version above I even updated the kernel to
version newer than the one currently on the working desktop version, still no luck,
Does anyone have experience with usb 3G modem detection on boot??,
Any ideas why it works on the 14.04.1 LTS desktop version , and not any others?,
thanks a ton...for any suggestions
Appears that there is a patch in 14.04 ubuntu boot that fixes the usb_modeswitch issues. After taking a raw ubuntu , adding usb_modeswitch , its now working just fine.
Did not even have to configure usb_modeswitch.
I bought a laptop and installed Linux on it and the trackpad is now not working but it was on Windows. There is no linux driver for it and I thought this could be a good project to write one.
I have read and implemented tutorials on device drivers for simple things (turning on an led on a pandaboard) but I have no idea where to start here. Related questions pointed to commands like modprobe -r psmouse and it seems the trackpad is not seen at all.
Any idea ? the laptop is : Asus R409C.
A temporary fix is to boot with "psmouse.proto=bare" on the kernel cmdline.
$ sudoedit /etc/default/grub
Change GRUB_CMDLINE_LINUX_DEFAULT to add psmouse.proto=bare at the end, and save your modifications.
Then:
$ sudo update-grub
And finally reboot.
i think linux input subsystem can be used to write driver for touchpad. Exact details need to be considered. But most of the input devices can be integrated using input subsystem.
I want to install redhat or centos on computer,but when the linux system run on the computer,
the electric fan is run fast and hot,then I try to install ati driver to slove the problem,every time I install the rpm of driver,but the last step,"aticonfig --initial" it doesn't work,the system point out "aticonfig no supported adapters detected ",How cai I solve the problem ?Thank you very much.