Debian Hardware :: Input Lag On Mednafen / OpenGL
Jul 28, 2015
I have some serious input lag (using gamepad through USB) when using mednafen together with opengl. I am using a ATI HD3000, (built in to motherboard) and debian jessie together with FOSS drivers. If I use overlay instead, the input lag is acceptable, but not as good as it could be. I've tried all the things in the [URL]... mednafen documentation[/url] like turning off vsync, filters and whatnot but it doesn't really make any difference. There is also something about turning off "flip queue size" and Triple buffering but I have not found any way to change these settings for the FOSS driver.
I can use the overlay, but I would prefer to lower the input lag even further and use the opengl driver. I understand that there will always be *some* input lag on a HDTV but why is opengl so slow for me?
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Jul 22, 2011
I'm having some problems compiling mednafen on Suse 11.4. When I run configure, things work fine until I get the following series of errors:
[Code]...
configure: error: *** OpenGL header file not found! I've seen references in a few places that these type ("Present But Cannot Be Compiled") can usually be ignored, but in this case ./configure fails and I can't make. I am unsure why this is, as I've installed mednafen on Suse 11.4 before and it runs fine. I've tried installing various OpenGL-related packages that I can find (Mesa, freeglut, glib, etc) but nothing seems to solve the problem
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Oct 19, 2009
I just upgraded from FC8 (32-bit) to FC11 (64-bit). In doing so, I backed up my entire World of Warcraft folder so I could try to avoid having to download and install it all over again. However, I've now reinstalled wine (64-bit now), and the nvidia drivers from the rpmfusion repos (also 64-bit), and when I try to start WoW, it says it cannot load OpenGL. I'm wondering if anyone knows what's up, and if there's a solution that doesn't involve reinstalling WoW.
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Jan 4, 2016
I have a tightvnc server running on my computer and have my IPAD using a vnc client to connect to it. Everything works fine except for apps that require openGL (eg: minetest,steam). I was wondering how I could use said apps over vnc.
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Feb 28, 2014
Running under Debian oldstable:
#include<stdio.h>
#include<stdlib.h>
#include <GL/glew.h>
#include <GL/glext.h>
#include <GL/glut.h>
void init(){
const GLubyte* version = glGetString(GL_VERSION); // line 2338
printf("version = %s
", version);
...
The gcc compiler gives me:
code.c: In function ‘init’:
code.c:2338: error: stray ‘342’ in program
code.c:2338: error: stray ‘200’ in program
code.c:2338: error: stray ‘213’ in program
code.c:2338: error: stray ‘342’ in program
code.c:2338: error: stray ‘200’ in program
code.c:2338: error: stray ‘213’ in program
Do I need an additional header?
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Aug 31, 2015
I have Intel HD Graphics video card on my laptop using OpenGL 3.0 with Mesa 10.3.2, but I need OpenGL 3.3.
Can I upgrade/enable OpenGL >=3.3 on Mesa for my GPU for Debian 8.1 Jessie? How can I do that?
Output of glxinfo | grep OpenGL:
OpenGL vendor string: Intel Open Source Technology Center
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) Ivybridge Mobile
OpenGL core profile version string: 3.3 (Core Profile) Mesa 10.3.2
OpenGL core profile shading language version string: 3.30
OpenGL core profile context flags: (none)
[Code] .....
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Aug 29, 2014
I am enjoying spontaneous reboots. Here is my config:
Code: Select allroot@notosh:/home/ckosloff# inxi -bmxxx
System: Host: notosh Kernel: 3.16-0.towo-siduction-amd64 x86_64 (64 bit gcc: 4.9.1)
Desktop: KDE 4.14.0 (Qt 4.8.6) info: plasma-desktop dm: kdm
Distro: Debian GNU/Linux jessie/sid
Machine: System: TOSHIBA product: Satellite C75D-B v: PSCLEU-003002 serial: 6E028973U
Mobo: TOSHIBA model: Portable PC v: MP serial: 1 Bios: Insyde v: 1.10 date: 04/30/2014
[Code] ....
I am now using OpenGL 3.1 and Native, any changes I should make there?
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Jun 4, 2011
I have the HD4850 and, I wanted to know if it is possible to use the CLI to see which version of OpenGL is the latest version I can use according to my driver. If it's not possible via the CLI then, what's the next best way? (I can't find a website for the radeon driver listing the latest OpenGL support per supported card).
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Feb 13, 2011
After finally figuring out how exactly how to compile something from source, I did it with Wine. However, there's a problem, when I'm trying to play a game on Steam (Half-Life) on a TNT2 graphics card (With NVIDIA drivers 71.86 installed as well as all of the packages needed to compile Wine from source), everything either lags or has an error.
One of these errors is that OpenGL32 isn't being initialized after attempting to start the game in that mode. Another error (or I should say problem) is that in Direct3D mode, it just.. crashes lol. Also, in Software mode, it LAGS horribly and I don't think it has to do with the hardware limitations I have on this machine. I did however install the glx and gl drivers AFTER I compiled Wine, do I have to do yet another install?
Debian Lenny 5.0.8
667MHz Celeron Coppermine
NVIDIA TNT2 32mb VRAM card
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Jul 11, 2010
I'm running Debian Lenny with GNOME on a ThinkPad T43. Some OpenGL apps like the game Trigger run great, while others like Stellarium crash my system beyond recovery. I get a black screen, I can see the mouse cursor and move it at a very slow speed, but nothing else. I can't switch to a different terminal or restart X with ctrl-alt-bksp.
I assume that the problematic apps do not like the laptop's integrated graphics chip? Is there a way to know ahead of time what apps might be troublesome, before actually running them? I hate hard resets.
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Dec 19, 2010
When using the very nice opengl screensavers, rss-glx, etc. the screensavers are very choppy.I tried modifying my xorg.conf but still no go.Anyway to get the rss-glx screensavers to run at normal speed?I read online that Intel disable the hardware acceleration.This is a work laptop but I just wanted to see if I could get it going.
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Feb 5, 2015
I have moved from MS directX to OpenGL on Linux Debian. My computer is running Jessie version with Gimp. I am trying to use several of the gl 4.0 functions but getting compiler error. I check for OpenGL version and appears to be version 1.5 .... How can I verify the correct openGL version and how can I upgrade to a moder version of at least 4.0?
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Apr 1, 2014
I'm using Debian Jessie. All the firmware packages are properly installed, and so are the radeon free driver packages.
However, Gallium falls back to llvmpipe, which from what I understand is a software rasterizer and not actually hardware rendering.
Everything works fine except some specific things like KDE's cube animation, which says it can't be enabled because it requires OpenGL.
How do I get Debian to run Gallium properly?
I attached some relevant info...
glxinfo | grep -i opengl
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Jun 22, 2011
The system has driver for intel, but the opengl version is 2.1. How to update opengl version to 4.1. (intel 945). For ATI just download driver version 11.5 and install it. All is OK.
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Nov 4, 2010
I recently got a real fancy unidirectional microphone, but when I go and use it, something strange happens. The mic is a mono mic, but when I record something, it appears to think it's stereo. Instead of having the same thing on both channels, it puts it all in the left channel, and silence on the right channel.
I tried fiddling with alsamixer. In capture (F4), adjusting the "Capture" device has an effect. However, it doesn't do anything useful. Lowering the right channel to zero does nothing, lowering the left channel to zero creates silence, and disabling the right channel creates silence.
In my System>Preferences>Sound (or pavucontrol, or what-have-you), there are "Analog Stereo Input" and "Analog Stereo Duplex" options there, but no "Analog Mono Input" or "Analog Stereo Output + Analog Mono Input" options (the latter being ideal).
Something interesting, though, if I do this:
Code:
arecord -r 96000 -D pulse -c 1 -vv -V mono /dev/null
it works correctly and outputs on both channels. But if I do
Code:
arecord -r 96000 -D pulse -c 2 -vv -V stereo /dev/null
then it's back to the same behavior. The VU meter on the second command shows the left channel going up and down as I make noise, but the right one always at zero.
The machine does have a crap internal mic built in to the screen bezel. If I do either of the above commands, they both work correctly. The stereo VU shows the same activity for both channels.
The machine is a Eee 1015PED, which has Intel integrated sound. Something probably insignificant is that the mic has a 1/4 inch mono plug, and to get it to plug into the Eee, I needed to get a 1/4 female to 1/8 male adapter. The mic's 1/4 plug is mono (duh) and therefore two-conductor, but the adapter I got is stereo, or three conductor (L, R, GND). I don't know if this is tripping something in hardware to tell it it's stereo or something.
I tried the mic on my desktop, which has a SB Audigy 4 (the non-pro flavor) and that has the "Analog Mono Input" function, so that works fine. Is there some way to turn this stereo input into mono input?
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May 1, 2010
I installed Lucid. I used to have Ubuntu 9.10 and to connect my iPod to my laptop's speakers. There was an option in 9.10 in the Sound Options to change the Mic Input into a Line Input. But now unfortunately I can't find it in Lucid have only 2 audio ports in the laptop: Headphone port, Mic port.
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May 5, 2010
I would like to use Japanese kana (hiragana, katakana, kanji) on Ubuntu but everything that I've tried to get it set up and running isn't working. The Spanish that I have set up is working perfectly so far.
I've read, the SCIM input program should start up automatically when loading a program, it doesn't. When I have it loaded I cannot seem to get the input working.
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Jun 28, 2015
I can play audio in my alsa system and I can record. To keep things simple, I use arecord to record and aplay to play. So far so good. The problem is, I cannot hear what I am recording as I record it. Is there some way to get the input to be echoed to the output? I would optimally like to be able to do this before recording as well as during, so that I can check the levels, find the part to record on the tape, beforehand.
I have tried a test of my card: I had aplay running in one term and arecord running in another. They both ran fine and when I checked the just-recorded file, it was different audio from what I had been playing. This would indicate that the card is able to input and output at the same time, I think? I've done the usual googling as well as reading through URL... and I have done many passes of trial-and-error on my .asoundrc. The more I look at my .asoundrc, the more it looks like it should be doing what I want, but it is not.
My .asoundrc (which again, does works but does not echo audio input):
Code: Select all# pros: this allows playback and record. Playback of several
# programs at the same time works (their outputs are mixed
# together, mono and stereo mixed to stereo)
#
# cons: input is never echoed!
[code]....
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Nov 13, 2015
I am running Debian 8.2 (Jessie) with KDE 4.14.2. I use ibus to enter CJK characters. ibus is setup "the manual way" from URL....
Code: Select allexport GTK_IM_MODULE=ibus
export XMODIFIERS=@im=ibus
export QT_IM_MODULE=ibus
CJK input via ibus works for Qt4 applications such as Kate and Kwrite.However, CJK input via ibus does not work automatically with Qt5 applications, such as sqlitebrowser. I can get ibus running with Qt5 applications if I launch the application from the console like this:
Code: Select allQT_IM_MODULE=ibus sqlitebrowser
Is there way I can get ibus working with Qt5 applications automically without needing to add "QT_IM_MODULE=ibus" all the time?
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Apr 21, 2011
This is a question for those that use pdftk. I've been using it for about the last year or so to combine manipulate PDFs and it is awesome. Until today, mostly what I've been using it for has been for less than five files. Today I have been working on a manual at work which consists of about 100 separate files with a total page count of 167. The pages are a mix of 8.5x11(inch) and 11x17(inch). The pages needed to be in a specific order, the only way I could think of to do this instead doing this all in the CLI, I created a text file which contained a list or sequence of the files. To make it easier for me to read and group, I first put each file on a separate line.
chapter1_separation_page.pdf
file1.pdf
file2.pdf
[code]....
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Jul 9, 2010
So I have this cable going from a cassette players "phones" jack to my computers input jack but there is no sound coming from my speakers though it did with Windows XP.
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Feb 15, 2011
I have been trying unsuccessfully to load Debian on my desktop. I have tried both live and otherwise. Both AMD64 and i386. It seems to be loading fine and then all of a sudden the monitor quits with a sign Input signal out of range. I have tried lots of other live disks and they have worked fine. My monitor is a Hanns G and my video card is NVIDIA GeForce8200. All other stuff very normal. 4 Gigs of RAM. What?
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Mar 24, 2010
i open google page and want to search something, now , i want to change the input font which will be put into the search box, the default is english, how to exchange with others.
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Mar 24, 2010
i open the google search page and want to search something.but the font which i will use is not the english. now, who can tell me how to exchange the input method to another.
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Jul 16, 2015
I'm a recent convert from Linux Mint to Debian for use with an HTPC media center.
I've been using Kodi + Playstation BD Remote for some time successfully with Mint.
I'm having issues getting the remote to work under Debian.
Typically I've been able to pair with Blueman and connect to the Input Service, however, under Debian, There are no "Input Serivce" options in the menus of Blueman..?
I don't know if this is because I'm missing some package that enables this or because my remote is not recognized as an input device. I suspect it is the former, because a bluetooth keyboard I have doesn't expose the "Input Service" menu option either.
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Nov 16, 2010
i'm running Debian "lenny" x86 on KDE. Back in Windows, I was able to switch between keyboard input languages by pressing certain hotkeys on my English keyboard. For instance if I switched to German, the semicolon button would become I think a umlaut or o umlaut. Is there any close equivalent in Debian? I know of 'dpkg-reconfigure console-data', however even if it did work (which in my case it didn't), it would be a hassle to type in commands at the terminal to switch between keyboard input languages, compared to just pressing hotkeys.
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Jun 10, 2013
I need a way to use serial input such as through an Arduino in Debian scripts, in any usable language.
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Jun 7, 2011
My touchscreen "LG Display LGD-MultiTouch" will be recognized sometimes as /dev/input/event0 and sometimes as /dev/input/event3. How to hardcode /dev/input/event0 using udev and xorg.conf?
Code:
# cat /proc/bus/input/devices
I: Bus=0003 Vendor=1fd2 Product=0064 Version=0100
N: Name="LG Display LGD-MultiTouch"
P: Phys=usb-0000:00:1d.7-4.1/input0
S: Sysfs=/devices/pci0000:00/0000:00:1d.7/usb1/1-4/1-4.1/1-4.1:1.0/input/input0
U: Uniq=
H: Handlers=mouse0 event0
B: EV=1b
B: KEY=403 0 30000 0 0 0 0 0 0 0 0
B: ABS=700 3f
B: MSC=10
# udevadm info --query=all --path=/devices/pci0000:00/0000:00:1d.7/usb1/1-4/1-4.1/1-4.1:1.0/input/input0
P: /devices/pci0000:00/0000:00:1d.7/usb1/1-4/1-4.1/1-4.1:1.0/input/input0
E: UDEV_LOG=3
E: DEVPATH=/devices/pci0000:00/0000:00:1d.7/usb1/1-4/1-4.1/1-4.1:1.0/input/input0
E: PRODUCT=3/1fd2/64/100
E: NAME="LG Display LGD-MultiTouch"
E: PHYS="usb-0000:00:1d.7-4.1/input0"
E: UNIQ=""
E: EV==1b
E: KEY==403 0 30000 0 0 0 0 0 0 0 0
E: ABS==700 3f
E: MSC==10
E: MODALIAS=input:b0003v1FD2p0064e0100-e0,1,3,4,k110,111,140,141,14A,ra0,1,2,3,4,5,28,29,2A,m4,lsfw
E: SUBSYSTEM=input
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Oct 14, 2010
Brand new to Linux. Just installed Debian 5.0.6 (64-bit). Upon booting up, the screen is all black with a gray floating screen that says "Input Not Supported". My guess is that the video card is not supported by Debian, but maybe somebody knows a way around this problem... (I know for a fact that both video card and LCD work fine in Windows XP.)
My hardware:
* Video card: ATI Radeo HD 4850
* LCD: Acer V193W
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Jul 31, 2011
my thinkpad Edge 11 has some problems with the touchpad and the trackpoint, so i want to permanently disable the touchpad, but not the TrackPoint. Both are PS2 devices.
/dev/input/mouse0 --> TouchPad
/dev/input/mouse1 --> TrackPoint
How can i disable the device? In X it does not work with gpointing-device-settings
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