xrandr - cannot find mode, but mode listed by xrandrxrandr not listing modes in xorg.confStart ubuntu with...
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xrandr - cannot find mode, but mode listed by xrandr
xrandr not listing modes in xorg.confStart ubuntu with xrandr generated screen resolutionXrandr custom refresh rate unstable in games and with various applicationsSetting best display mode as defaultUnfortunate resolution change. Xrandr refuses to switchHow to change the preferred mode on xrandr?Error message at startup when using xrandr command in ~/.profilexrandr thinks same monitor is connected twiceParse xrandr output to get available resolutionxrandr cannot find mode, but shows up in list
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If I execute xrandr, I get a list of resolutions supported on my monitor (I only have one). For most of these resolutions I can excuted 'xrandr --output eDP-1-1 --mode res' and it works.
But for some resolutions on the list, I get an error back 'cannot find mode'. If I add a --rate 60 flag it then finds the mode and sets the resolutions.
This would make some sense if xrandr couldn't decide which refresh rate to use, but this happens for resolutions with only one refresh rate listed.
What gives? It is I supposed not a big issue but I would like to know what is going on.
xrandr
asked 5 hours ago
CountingstuffCountingstuff
1011
New contributor
Countingstuff is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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|
show 2 more comments
If I execute xrandr, I get a list of resolutions supported on my monitor (I only have one). For most of these resolutions I can excuted 'xrandr --output eDP-1-1 --mode res' and it works.
But for some resolutions on the list, I get an error back 'cannot find mode'. If I add a --rate 60 flag it then finds the mode and sets the resolutions.
This would make some sense if xrandr couldn't decide which refresh rate to use, but this happens for resolutions with only one refresh rate listed.
What gives? It is I supposed not a big issue but I would like to know what is going on.
xrandr
asked 5 hours ago
CountingstuffCountingstuff
1011
New contributor
Countingstuff is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
What happens if you run the simple commandxrandr -s widthxheightwherewidthxheightcan be for example1024x768or1920x1080or whatever is listed by the plainxrandrcommand?
– sudodus
4 hours ago
512x384 is listed by xrandr. xrandr -s 512x384 says "Size 512x384 not found in available modes"
– Countingstuff
4 hours ago
512x384is a very low resolution, not really useful. In my computer the lowest listed resolution is640x480, and it works. Are there other listed resolutions, that do not work? What graphics card and graphics driver are you using? And which version of Ubuntu? Are you runnning Xorg or Wayland? And what monitor is it (brand name and model)?
– sudodus
4 hours ago
1
Hey, yes, for example 720x450 is listed but does not work. I agree it's a very low resolution and not useful, but I am writing some code that requires changing of resolutions, and I'm wary now since I don't understand when xrandr works and does not. I'm on Ubuntu 16.04, my graphics card is Intel HD Graphics 520, driver i912. I am running xorg
– Countingstuff
4 hours ago
This is an unusual problem. I have usedxrandrmany times and in many computers (for example to get lower resolution than default in order to get screenshots to upload to AskUbuntu). Intel graphics and the corresponding linux drivers are usually cooperating well, but there are some exceptions. There could also be problems because of the monitor (hardware). -- You can test in a live drive of Ubuntu 18.04.1 LTS, 'Try Ubuntu without installing', and test in some other computers, if you have the same problem.
– sudodus
4 hours ago
|
show 2 more comments
If I execute xrandr, I get a list of resolutions supported on my monitor (I only have one). For most of these resolutions I can excuted 'xrandr --output eDP-1-1 --mode res' and it works.
But for some resolutions on the list, I get an error back 'cannot find mode'. If I add a --rate 60 flag it then finds the mode and sets the resolutions.
This would make some sense if xrandr couldn't decide which refresh rate to use, but this happens for resolutions with only one refresh rate listed.
What gives? It is I supposed not a big issue but I would like to know what is going on.
xrandr
asked 5 hours ago
CountingstuffCountingstuff
1011
New contributor
Countingstuff is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
If I execute xrandr, I get a list of resolutions supported on my monitor (I only have one). For most of these resolutions I can excuted 'xrandr --output eDP-1-1 --mode res' and it works.
But for some resolutions on the list, I get an error back 'cannot find mode'. If I add a --rate 60 flag it then finds the mode and sets the resolutions.
This would make some sense if xrandr couldn't decide which refresh rate to use, but this happens for resolutions with only one refresh rate listed.
What gives? It is I supposed not a big issue but I would like to know what is going on.
xrandr
xrandr
asked 5 hours ago
CountingstuffCountingstuff
1011
New contributor
Countingstuff is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 5 hours ago
CountingstuffCountingstuff
1011
New contributor
Countingstuff is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 5 hours ago
CountingstuffCountingstuff
1011
New contributor
Countingstuff is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 5 hours ago
CountingstuffCountingstuff
1011
asked 5 hours ago
CountingstuffCountingstuff
1011
1011
New contributor
Countingstuff is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Countingstuff is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Countingstuff is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
What happens if you run the simple commandxrandr -s widthxheightwherewidthxheightcan be for example1024x768or1920x1080or whatever is listed by the plainxrandrcommand?
– sudodus
4 hours ago
512x384 is listed by xrandr. xrandr -s 512x384 says "Size 512x384 not found in available modes"
– Countingstuff
4 hours ago
512x384is a very low resolution, not really useful. In my computer the lowest listed resolution is640x480, and it works. Are there other listed resolutions, that do not work? What graphics card and graphics driver are you using? And which version of Ubuntu? Are you runnning Xorg or Wayland? And what monitor is it (brand name and model)?
– sudodus
4 hours ago
1
Hey, yes, for example 720x450 is listed but does not work. I agree it's a very low resolution and not useful, but I am writing some code that requires changing of resolutions, and I'm wary now since I don't understand when xrandr works and does not. I'm on Ubuntu 16.04, my graphics card is Intel HD Graphics 520, driver i912. I am running xorg
– Countingstuff
4 hours ago
This is an unusual problem. I have usedxrandrmany times and in many computers (for example to get lower resolution than default in order to get screenshots to upload to AskUbuntu). Intel graphics and the corresponding linux drivers are usually cooperating well, but there are some exceptions. There could also be problems because of the monitor (hardware). -- You can test in a live drive of Ubuntu 18.04.1 LTS, 'Try Ubuntu without installing', and test in some other computers, if you have the same problem.
– sudodus
4 hours ago
|
show 2 more comments
What happens if you run the simple commandxrandr -s widthxheightwherewidthxheightcan be for example1024x768or1920x1080or whatever is listed by the plainxrandrcommand?
– sudodus
4 hours ago
512x384 is listed by xrandr. xrandr -s 512x384 says "Size 512x384 not found in available modes"
– Countingstuff
4 hours ago
512x384is a very low resolution, not really useful. In my computer the lowest listed resolution is640x480, and it works. Are there other listed resolutions, that do not work? What graphics card and graphics driver are you using? And which version of Ubuntu? Are you runnning Xorg or Wayland? And what monitor is it (brand name and model)?
– sudodus
4 hours ago
1
Hey, yes, for example 720x450 is listed but does not work. I agree it's a very low resolution and not useful, but I am writing some code that requires changing of resolutions, and I'm wary now since I don't understand when xrandr works and does not. I'm on Ubuntu 16.04, my graphics card is Intel HD Graphics 520, driver i912. I am running xorg
– Countingstuff
4 hours ago
This is an unusual problem. I have usedxrandrmany times and in many computers (for example to get lower resolution than default in order to get screenshots to upload to AskUbuntu). Intel graphics and the corresponding linux drivers are usually cooperating well, but there are some exceptions. There could also be problems because of the monitor (hardware). -- You can test in a live drive of Ubuntu 18.04.1 LTS, 'Try Ubuntu without installing', and test in some other computers, if you have the same problem.
– sudodus
4 hours ago
What happens if you run the simple command
xrandr -s widthxheight where widthxheight can be for example 1024x768 or 1920x1080 or whatever is listed by the plain xrandr command?– sudodus
4 hours ago
What happens if you run the simple command
xrandr -s widthxheight where widthxheight can be for example 1024x768 or 1920x1080 or whatever is listed by the plain xrandr command?– sudodus
4 hours ago
512x384 is listed by xrandr. xrandr -s 512x384 says "Size 512x384 not found in available modes"
– Countingstuff
4 hours ago
512x384 is listed by xrandr. xrandr -s 512x384 says "Size 512x384 not found in available modes"
– Countingstuff
4 hours ago
512x384 is a very low resolution, not really useful. In my computer the lowest listed resolution is 640x480, and it works. Are there other listed resolutions, that do not work? What graphics card and graphics driver are you using? And which version of Ubuntu? Are you runnning Xorg or Wayland? And what monitor is it (brand name and model)?– sudodus
4 hours ago
512x384 is a very low resolution, not really useful. In my computer the lowest listed resolution is 640x480, and it works. Are there other listed resolutions, that do not work? What graphics card and graphics driver are you using? And which version of Ubuntu? Are you runnning Xorg or Wayland? And what monitor is it (brand name and model)?– sudodus
4 hours ago
1
1
Hey, yes, for example 720x450 is listed but does not work. I agree it's a very low resolution and not useful, but I am writing some code that requires changing of resolutions, and I'm wary now since I don't understand when xrandr works and does not. I'm on Ubuntu 16.04, my graphics card is Intel HD Graphics 520, driver i912. I am running xorg
– Countingstuff
4 hours ago
Hey, yes, for example 720x450 is listed but does not work. I agree it's a very low resolution and not useful, but I am writing some code that requires changing of resolutions, and I'm wary now since I don't understand when xrandr works and does not. I'm on Ubuntu 16.04, my graphics card is Intel HD Graphics 520, driver i912. I am running xorg
– Countingstuff
4 hours ago
This is an unusual problem. I have used
xrandr many times and in many computers (for example to get lower resolution than default in order to get screenshots to upload to AskUbuntu). Intel graphics and the corresponding linux drivers are usually cooperating well, but there are some exceptions. There could also be problems because of the monitor (hardware). -- You can test in a live drive of Ubuntu 18.04.1 LTS, 'Try Ubuntu without installing', and test in some other computers, if you have the same problem.– sudodus
4 hours ago
This is an unusual problem. I have used
xrandr many times and in many computers (for example to get lower resolution than default in order to get screenshots to upload to AskUbuntu). Intel graphics and the corresponding linux drivers are usually cooperating well, but there are some exceptions. There could also be problems because of the monitor (hardware). -- You can test in a live drive of Ubuntu 18.04.1 LTS, 'Try Ubuntu without installing', and test in some other computers, if you have the same problem.– sudodus
4 hours ago
|
show 2 more comments
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What happens if you run the simple command
xrandr -s widthxheightwherewidthxheightcan be for example1024x768or1920x1080or whatever is listed by the plainxrandrcommand?– sudodus
4 hours ago
512x384 is listed by xrandr. xrandr -s 512x384 says "Size 512x384 not found in available modes"
– Countingstuff
4 hours ago
512x384is a very low resolution, not really useful. In my computer the lowest listed resolution is640x480, and it works. Are there other listed resolutions, that do not work? What graphics card and graphics driver are you using? And which version of Ubuntu? Are you runnning Xorg or Wayland? And what monitor is it (brand name and model)?– sudodus
4 hours ago
1
Hey, yes, for example 720x450 is listed but does not work. I agree it's a very low resolution and not useful, but I am writing some code that requires changing of resolutions, and I'm wary now since I don't understand when xrandr works and does not. I'm on Ubuntu 16.04, my graphics card is Intel HD Graphics 520, driver i912. I am running xorg
– Countingstuff
4 hours ago
This is an unusual problem. I have used
xrandrmany times and in many computers (for example to get lower resolution than default in order to get screenshots to upload to AskUbuntu). Intel graphics and the corresponding linux drivers are usually cooperating well, but there are some exceptions. There could also be problems because of the monitor (hardware). -- You can test in a live drive of Ubuntu 18.04.1 LTS, 'Try Ubuntu without installing', and test in some other computers, if you have the same problem.– sudodus
4 hours ago