Questions tagged [kms]
Use this tag on questions regarding the Kernel Mode Setting (KMS).
36
questions
1
vote
0
answers
57
views
delaying or speeding up drm/kms with amdgpu driver?
I have a amdgpu, using the open source driver. amdgpu driver claims to do early kms by default, but the early is very late. Exactly 2.5s!
I wouldn't care much but it breaks and delays my disk ...
- 428
2
votes
0
answers
153
views
How does this whole FrameBuffer, DRM, KMS stuff work in todays Linux / Kernel?
I'm confused about what is what nowadays with Linux and video support for the console interface vs X.
Do the /dev/fb* items only relate to the old original framebuffer support?
Does DRM create/support ...
- 291
2
votes
1
answer
655
views
Unloading KMS driver / Replacing NVIDIA Linux drivers without rebooting
In the past you could trivially replace NVIDIA proprietary drivers on the fly after switching to the text console, killing X.org and unloading (rmmod) the appropriate NVIDIA modules, and installing ...
- 30.7k
1
vote
1
answer
543
views
How to set Number of Lines in tty terminals
I running Manjaro Linux (21.2) with KDE. I have a large ultra-wide screen monitor with ideal resolution of 3400x1440.
KDE and Konsole appear to be running this resolution fine but when I switch to ...
- 111
2
votes
2
answers
332
views
Xorg problem with Radeon Mobility X1600 on a 20" iMac LCD from 2006
My attempt to give a meaningful purpose to a 20-inch 2006 iMac 4.1 choked on an odd Xorg problem. Tried FreeBSD 13.0 Release/amd64 and elementaryOS 6.0 Odin as up-to-date systems with their respective ...
- 123
0
votes
0
answers
413
views
Low-Latency method to read Xorg or DRM framebuffer
I am trying to build an application that can measure the latency/processing time of graphics frameworks on Linux.
My idea is to implement simple programs that react to an input event (e.g. mouse click)...
0
votes
2
answers
1k
views
Linux issues on iMac
Linux issues on iMac
I have Ubuntu 18.04.4 LTS and Arch Linux installed on
an iMac, which I think doesn't support KMS. I have gotten Ubuntu to work with several desktops, window managers, and ...
- 169
2
votes
0
answers
78
views
drm/kms: Limit graphics memory usage of process
Is there a way to limit the amount of graphics resources allocated by a process in the DRM/KMS subsystem, similar to the way one can limit system memory consumption with rlimits and cgroups? Is there ...
- 429
0
votes
0
answers
1k
views
How to set a large stty size?(default 80x24)
I'm really not sure where is the problem, so I'm putting all message i think helpful here.
dmesg | grep drm
[ 0.316388] fb0: switching to cirrusdrmfb from EFI VGA
[ 0.316769] [drm] fb mappable ...
- 11
1
vote
0
answers
821
views
Struggling with display KMS options on Lenovo D330-10igm
I'm trying to replace the default Windows 10 installation with Linux on this hybrid tablet.
What I tried
First I tried with Ubuntu 18.04, blank screen, I thought about starting modifying the KMS ...
- 233
2
votes
1
answer
4k
views
How to load a modified EDID into RAM after boot to fix defective monitor's EDID report?
I've acquired a couple of HP L1750 monitors, which have VGA & DVI inputs. The VGA inputs work without issue. However, the DVI input only works until Kernel Mode Setting (KMS) occurs, after which ...
- 509
0
votes
1
answer
2k
views
set kms specific resolution at boot time
i'm trying to set a specific resolution for kms, at boot time.
by default kms choose the highest resolution available (2500x1600) which is a bit hard to read.
i'd like to set 1440x900 instead.
i ...
- 1
9
votes
3
answers
5k
views
HDMI monitors not correctly detected after suspend if laptop lid closed
When my Dell XPS 15 9570 laptop is on, the monitor plugged in the HDMI port is correctly detected. Unplugging the monitor also works as expected.
However, when waking up from suspend by briefly ...
- 223
0
votes
0
answers
263
views
How do I find the video memory region(s) representing what's on my screen, from within the Linux kernel?
About 5-20 times a day I am presented with brief visual glitches and heisenbugs caused by race conditions that only occur under high I/O load. These disappear off the screen far too quickly for me to ...
- 1,027
2
votes
0
answers
338
views
Debugging "client 0 refused switch" with hybrid graphics
I have an old MacBook with both integrated and discrete graphics, on which I run Fedora. When I first installed it, and sometimes when I update, it fails to boot with a weird "screen crash" where ...
- 1,018