Fedora :: Monitor Isn't Detected Correctly / Can't Use Full Resolution
Jul 26, 2011
Today my desktop reverted to 1024x768 resolution immediately after init. I tried changing it back but only 1024x768 and 800x600 are listed as supported in the display settings, even though my monitor supports resolutions of up to 1360x768. Rebooting the system did not solve the problem.I'm running Fedora 15 x86_64 on kernel 2.6.38.8-35 with the proprietary nvidia drivers of version 275.09.07. My monitor is a Samsung SyncMaster 933n. nvidia-settings is apparently not detecting it correctly, it thinks I'm using a CRT monitor.I was actually in this exact same situation a few months back, but it kind of went away on its own, so I didn't mind too much. So, what could be causing this, and what can I do?
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Oct 11, 2010
I installed a new copy of F13 this morning on my fairly new laptop.32 Bit Intel, 3GB Memory 120GB HDD. The problem I've got is that my Monitor/Graphics card is not getting detected and as a result I'm getting a horrible Resolution/Refresh rate. When I run
lspci | grep VGA
I get this 01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS] 771/671 PCIE VGA Display Adapter (rev 10). how I can get my monitor/graphics recognized to work in the Full Resolution.
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Feb 27, 2011
I have a HPL2045W LCD monitor connected to my Fedora 14 PC through a Belkin KVM switch. On Fedora 12, the screen resolution (upto 1680x1050) was correctly recognised, but in Fedora 14, the best I can get is 1024x768. How do I correct this obvious error?My graphics card is an ATI Radeon RV2600 which has worked flawlessly for several years, until this version of Fedora.
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Nov 14, 2010
problem happens after installing nvidia driver.everything was fine.the nvidia driver has been detected and functioning correctly.but my monitor,acer x173w which can go for maximum resolution of 1440x990 but i'm still using 1024x768.
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Jan 18, 2010
OS: Fedora 12
Video card: ATI Radeon 9200 series
Monitor: ViewSonic 19"
I installed Fedora 12 configured Gnome automatically. Generally default settings. My monitor was connected directly to the video card and all was good. My video card was detected and my monitor was detected as ViewSonic Corporation 19" and I can set the screen resolution to 1280x1024. I had no xorg.conf file, as it seems that Fedora 12 does a great job of PnP to just set everything up.Now I go and complicate things by hooking up my monitor through a KVM switch. All of a sudden my monitor is "Unknown" and the best resolution I can achieve is 800x600.
Sure, I could go and reconnect without the KVM, but I want to be able use it.Is it possible to edit xorg.conf to tell it "Trust me, just use 1280x1024 at 60Hz even though you can't figure out what the monitor is"?
I tried a number of the posted suggestions to generate xorg.conf files but none of them get me what I need. A simple sample file listing that does the minimum is greatly appreciated (I can experiment from there once I get a basic setup working).And can someone explain if it is X or the ATI driver that is getting confused by the unknown monitor type. It helps to know what is actually going on in addition to a fix (so I can figure it out myself in the future). Thanks!
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May 27, 2011
Got a system that I've been using for a long time now without any problems. Now suddenly it won't use a higher resolution than 1024x768.I never added any mods to the configuration and have not added any software other than recommended updates it quite a while.Any ideas what happened or how to fix it? I checked and the monitor/graphics card will still do upper resolutions with windoze so I'm guessing the hardware is alright.Using OpenSuse 11.3, 64bit, on a dual core athalon with a Sapphire ATI x1600 graphics card and a 22 inch flat screen that is supposed to go 1600 x 1050.
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Nov 30, 2010
I have two video outs on my AGP video card. One is VGA and the other is S-video. I tried connecting the second monitor (Viewsonic) by itself to the VGA port and it works fine and runs at 1280x768 very clearly. I then attached the LG monitor instead to the VGA and attached the Viewsonic to the S-video port. Now it is running at 1024x768 and I have no option to increase the resolution.Is this a limitation based on S-video being worse than component, which is worse than VGA and it simply cannot handle the data density for larger resolutions? Or would it be my video adapter? I swear I had monitor control working fine through the panel, but now when I click on the monitor button it says, "It appears that your graphics driver does not support the necessary extensions to use this tool. Do you want to use your graphics driver vendor's tool instead?" and that opens an Nvidia X control panel.
Also, using S-video means the computer doesn't recognize the Viewsonic LCD TV properly, it just recognizes it as a TV. Is this because S-video doesn't play nicely with EDID reporting?It would be nice to get a sharp picture on that TV, the way I had when it was connected like a monitor via VGA. I am not sure what's going on anymore, so any help on clearing up driver issues or getting configuration apps installed or anything like that would be helpful.
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Aug 17, 2011
My software and hardware information are as follows. I have Fedora 12 and KDE 4.4.5 installed on a Dell Vostro 1500 laptop. I believe it's a 64 bit processor; it's an Intel Core 2 Duo CPU. The external monitor is a Dell as well.
My problem is that my system does not seem to be detecting an external monitor that I have connected. Everything else is working just fine; however, I would like to have the option of attaching an external monitor. When I plug the external monitor into the laptop, the external monitor remains black and appears to be in power save mode. The results of xrandr -q (with or without the external monitor attached: it doesn't appear to change) are as follows.
Code:
How can I get my laptop to recognize that the external monitor is even connected? Let me know if I can be more specific or provide additional details.
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Jun 14, 2010
When I boot my computer, I can see dvd-rw drive detected correctly, though 9 times out of 10 it does not get detected by OS - drive's icon is not present in nautilus hence I cannot access any cd or dvd. Although when I restart a computer and try to boot from cd or dvd - it works perfectly, then after coming back to the os the cd/dvd won't be accessible. I a have Fedora 13 installed from the DVD ISO.
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Jun 18, 2011
I am new to Ubuntu. I installed Ubuntu 8.04 and it detected my Acer monitor AL1716 correctly and it works fine. However when I installed Ubuntu 11.04 it shows the monitor as " Unknown Monitor" and the maximum resolution is 1024x768 and I cannot set the native resolution which is much higher. My motherboard has Intel 845G chipset and built in graphics. I tried Ubuntu Software Center, but couldnot solve the problem.
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Dec 24, 2010
I'm a very new Fedora user, and I've stumbled upon an issue which I can't seem to resolve. Having had a good look through similar issues, I'm still stuck.I have a Fujitsu Siemens Amilo M3438G laptop, upon which I've recently installed Fedora 14. It seems to work great apart from one thing; CPU speed. The processor in the laptop should run at 2GHz. At the moment, it's running at 600MHz, and I simply can't get it any higher.
I've played around with power profiles a bit, not really knowing what I'm doing, but the issue seems to be that the CPU is somehow reporting to the Operating System that it's top speed is 600MHz.The BIOS on this laptop is very limited, and doesn't give me any clocking options whatsoever, so I can't manually set things like multipliers, etc.So, I guess my first question would be - how does the OS find out what the processor speed is, and is there any way of manipulating the top speed? Surely there must be a way for Speedstep compatible processors to exceed their initial clocks?
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Dec 14, 2010
I have a ViewSonic (VA1703w) LCD and Fedora 14 is not detecting it. I want to change the resolution but it is fixed to 1024x768. I have also tried to add the resolution in xorg.conf but no effect.
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Feb 23, 2010
I'm playing with dual monitors. I have an NVIDIA GT220 set up so that my monitor and my TV are running as extended desktops. Everything is working well enough, but there is one annoying bit I've noticed:
If I'm watching ..... on monitor 1 in fullscreen and working on monitor 2, clicking anything in monitor 2 kills full-screen in monitor 1. Is this something that can be fixed somehow or is it a hardwired "feature"?
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Feb 11, 2010
I just rebuilt my fedora box and I'm having some problems getting dual monitors to work. First, I can't reposition my secondary monitor to be on the left. It thinks it's on the right. I can use xrandr to fix this, but that is annoying. Is there no way to do this in the display properties? Second, maximizing a window makes it go across all screens. I unchecked this option in the display properties.I also unchecked the one for letting windows be in multiple monitors at once, but this still happens.
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Oct 6, 2010
Installed fedora 13 to hard drive on fresh partition,installed ok,ran updater,installed all updates.all working ok but fedora is not able to detect my laptop monitor.i am unable to increase resolution.stuck on 800 * 600. when a window in open and i need to click at the bottom of the window i cant because it is bellow the screen.I went to [URL] to look for drivers.it only shows display drivers for red hat 7.0.i tried them but wont install.is thier drivers i can use for fedora 13,or a way to force resolution into 1024*768.
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Nov 5, 2010
I have a 22'' monitor. And I would like to set resolution to 1280*800. This is the resolution set in Windows in my computer in another disk partition. So I dont understand why I can't do the same in Fedora 13. The default resolution is 1680*1050, but everything looks too small. Other options I can choose are uselesnes because it distort everything.
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Aug 28, 2009
I installed FC11 on my laptop T43 and the video card is ATI Mobility Radeon x300. Now I have a problem of screen resolution with external monitor:
When I do presentation, I have to mirror the two monitors and both set to 1024*768, which is not perfect.
I remember that when I use RHEL 5 desktop edition, The system can automatically detect the external monitor and set it by itself ----- The laptop uses 1400*1050 and the external monitors such as projector uses 1024*768. But I haven't found such feature on FC11.
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Oct 1, 2010
It seems that whenever I boot my laptop (hp probook 6450b) without a monitor attached, then boot with a monitor later attached, the configuration gets all messed up.
Currently, if I boot with the monitor attached, right after the blue loading screen (at the login prompt) i get two black monitors and a mouse, with no login screen. Unplugging the monitor shows the login screen on the laptop.
If i boot without the monitor attached, log in, then plug it in, i see the following from xrandr:
Code:
Screen 0: minimum 320 x 200, current 2390 x 768, maximum 8192 x 8192
LVDS1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 310mm x 174mm
1366x768 59.6*+
1024x768 60.0
[Code]....
However, now when I reboot, all settings are lost, and if the monitor is attached, i get the black screen with a mouse at login.
I did notice that when I shutdown, it hangs on "Running guests on default URI", and i get a stack trace. It will keep dumping stack traces, and i have to hold down the power button to force it off.
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Apr 20, 2011
with opensuse 11.4, my gps qstartz 1000z seem detected like a storage mass
[Code]....
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Oct 27, 2009
I am trying to install Fedora 11, but the monitor that I am using is only 640x480. When the window comes up to start the install, I cannot see any of the buttons or tabs for selecting the items. How can I adjust the resolution so that I can see the entire image in my screen?
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Mar 30, 2011
I'm a new Fedora/Linux user and I've just setup my first laptop to use Fedora 14. However, I've come across an issue and I've done a lot of searching on various forums etc and basically I'm going around in circles. I've had my PC hang already after I tried to create a xorg.conf file. I have since removed the changes I made.
I have a a SIS 771/671 PCIE VIA Display Adapter (rev 10). I got this info via the lspci command. The problem I have is that it's not letting me select a resolution above 1024 * 768. I know it has higher resolutions as when it was a Windows XP and Vista PC I had higher resolutions. There has to be an easier way to set a screen resolution that manually editing cryptic files and knowing refresh rates etc.
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May 10, 2011
I've installed (in fact, reinstalled) Fedora 14 64bit and I just can get the resolution that I need with my legacy monitor. It's a CRT Samsung SyncMaster 753DFX. The video card is an NVidia GeForce 8600 GTS and I've installed the driver with the guide found in this same forum [URL] with the akmod one.
My problem is that the same HW with Windows XP run resolutions (among others) of 1280x800 @ 85Hz and 1280x768 @ 75Hz, but in Fedora the nearest one I get is 1280x900 @ 60Hz and that 60Hz makes me dizzy after a few minutes. So, it's posible to get the same configuration in Fedora as I got in Windows XP? And if it's possible, how can a get it? My xorg.conf have this info:
[Code]....
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Apr 7, 2011
I am working on an embedded system, which is an USB MSC device that supports some vendor specific scsi commands. I am using FC10 laptop as USB host for testing, and it runs some small apps based on sg3. All has been well for ~ a week. The FC10 laptop is able to communicate with the device and retrieve data. Suddenly, starting from today, the laptop is not able to properly detect the device. When plugged-in, the MSC device is detected as input device (I thought). This is observed from "dmesg" output and changes in "/dev/input/".The device under development is running at full speed. When I connect to winXP, no problem. A windows file explorer pops up, showing the content of the drive.Also, the FC10 has no problem with other USB flash drive (high speed).
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Apr 13, 2009
I have just installed Fedora 10 and all went well except that the resolution is set to 1024x768, which is not cool on a 22" HP w2207h LCD monitor. When I bring up Monitor Resolution Setting the Mirror Screens is checked and 1024x768 is the highest resolution. If I uncheck Mirror Screens and select "Laptop" I am able to select 1680x1050, but it now has my desktop in the upper left hand corner of my monitor. Should I be looking for a driver for my i845G graphics processor?
PS: I am new to using Linux please be patient with my ignorance.
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Feb 18, 2010
I have two displays: my main being an Apple Cinema Display (1920x1200), and my secondary being a Compaq W17q (1440x900). Previously all applications saw the secondary fine, being able to detect its name, native resolution, refresh rate, and so forth. But today, for no reason, after going into nvidia-settings the display is now being called "CRT-0" with only 4:3 resolutions available (1024x768 being the highest).
So now I'm stuck with the wrong resolution on my second monitor. All I can guess is that something more integral in Fedora is no longer able to read the EDID in it or something (I say integral as it's not just nvidia-settings, its everything, not to mention my install of Win 7 still reads the display A-OK)? Maybe I could just force the 1440x900 resolution? If so, how? Everything I've tried so far has either had no effect or resulted in glitch city.
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Mar 17, 2010
I just installed ubuntu 9.10 (latest version + updates) on my computer. I am new to the linux OS.I have a 1366x768 resolution monitor with a maximum vertical frequency of 60 hz. This worked well on windows. As I've already read in the internet, this can rise problems on Ubuntu. The monitor is connected through a switchbox, so it doesn't get recognised. Even if it's hooked up directly (Ubuntu recognises it) I can't choose the correct resolution.
Currently I can't use another graphics driver than the generic one. The screen stays black ("wrong vertical frequency" displayed on LCD Monitor) if I use another driver. I'd like to use the proprietary ATI/AMD fglrx driver. I edited the xorg.conf file, but I was unable to get the right resolution. It seems to be outdated on Ubuntu 9.10. After that fail, I searched for alternatives and ended up with a file called
45custom_xrandr-settings
in the "Xsession.d" folder. I'm using the following contents:
Code:
xrandr --newmode "1366x768_60.00" 85.86 1368 1440 1584 1800 768 769 772 795 -HSync +Vsync
xrandr --addmode VGA-0 "1366x768_60.00"
xrandr --output VGA-0 --mode 1366x768_60.00
But the monitor still complains that it's the wrong vertical frequency when I use the fglrx driver. The generic driver uses another resolution than the specified one (as always) and gives me a blurry picture on the screen. I have also tried other modelines, Ubuntu just doesn't seem to be able to display 1366x768@60hz.
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Jun 9, 2010
I had a working 10.04 installation and everything was good, then i compiled my own kernel and screwed things up. So I reinstalled and installed my graphics drivers. But Ubuntu can't seem to get my correct resolution. So I am stuck at 1360x768.
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Jan 23, 2010
I have a fujitsu siemens monitor C776 (built by Hansol E17CL)
FC12 can't autodetect it
If I go system -> preferences -> display the button: detect monitor does not work
I can't change resolution which is stopped at 640x480:
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May 13, 2010
First off, let me say: I'm a long time Linux hobbyist and recently installed Fedora 12. I've been looking (some say "lurking") around these forums for a bit after I loaded it up and let me say: Leigh, You're an amazing young man! Keep up the great work! I've a question: I've just put together a hobby computer: Pentuim 4, with 1 Gig of RAM and a Nvidia Geforce5700LE. When I install Fedora from a fresh install, everything works great: nice screen resolution, good graphics, etc. but no 3d or acceleration, so I'm very limited on my programs.
So I decided I need to upgrade my Nvidia driver. I followed Leigh's Nvidia setup guide after installing Fedora 12 (all four steps!) everything seemed to go fine, but when I reboot, I quickly see the Nvidia splash screen, but the screen then goes blank. Well, not really blank, I can see what appears to be a kind of cross-hatch pattern, plus I can see what should be my mouse cursor on screen (it also is a square shaped pattern). I suspect it may be at a screen resolution that my monitor doesn't support. Once there, the computer pretty much doesn't do anything else. Usually I can break into the x driver loading and go to the command prompt, but this latest time I can't even do that.
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Oct 20, 2010
I have a few machines set up to run off in the corner without monitors attached. I installed 11.3 (32-bit) on a couple of them and they run fine during setup but then I move them to the corner with no monitor attached and they won't boot correctly.
By this I mean they still run some apps I setup to run automatically from daemon scripts, but I can't ping or access the machines at all. It's almost like they aren't booting all the way up. Hooking a monitor up fixes this but I don't have enough monitors to keep these hooked up like this.
I have a couple of other 11.3 systems that are setup almost the same way but I put graphics drivers on those and they work with or without monitors attached. I don't want to have to put graphics drivers on those systems.
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