[SOLVED] Help! bad picture output of fbshot and fbgrab

aluser · 2011-02-22 21:14:03

I've been trying to take screenshots of the console using both of these tools but both return a distorted image with lines all over the place. Here is a screenshot. Anyone has any idea? I'm using tmux to handle my terminal sessions but the output is the same also in other empty tty* sessions.

Uploaded with ImageShack.us

Last edited by aluser (2011-05-07 23:31:01)

tripox · 2011-02-23 13:50:04

Try fbshot.

Inxsible · 2011-02-23 14:41:40

aluser wrote:

I've been trying to take screenshots of the console using both of these tools but both return a distorted image with lines all over the place. Here is a screenshot. Anyone has any idea? I'm using tmux to handle my terminal sessions but the output is the same also in other empty tty* sessions.

or scrot.

Both of which tools? Please be specific so people can actually help you.

aluser · 2011-02-23 16:31:57

Sorry I forgot to include the names of the 2 tools that dont work. I fixed its in the title.

milomouse · 2011-02-23 16:51:24

I've had problems with taking console shots with tmux too. I think it's how tmux uses buffers, though I could be wrong. Or it could be your console .. driver(?), like I use early KMS with ATI graphic device (radeondrmfb) so maybe that's the problem. Try running with vesafb or without KMS?

Last edited by milomouse (2011-02-23 16:56:50)

Inxsible · 2011-02-23 17:25:13

try to see if the screenshot comes out clean in a terminal without using tmux.

milomouse · 2011-02-23 17:27:22

I think he said it's the same for empty tty sessions too

Inxsible · 2011-02-23 17:29:58

milomouse wrote:

I think he said it's the same for empty tty sessions too

tty meaning when you hit Ctrl+Alt+F# key or just a terminal ? I am talking about a regular terminal

aluser · 2011-02-23 17:36:15

Well I tried uninstalling tmux because sometimes tmux can mess up other sessions, but nothing yet. I'd also like to add that im using nouveau so my console resolution is different than normal.

jasonwryan · 2011-02-23 17:41:35

I can use fbgrab and tmux and the shot works fine

I have an Intel card with KMS enabled...

aluser · 2011-02-24 02:03:15

jasonwryan wrote:

I can use fbgrab and tmux and the shot works fine
http://farm6.static.flickr.com/5015/5471099733_0afe631f0a_t.jpg
I have an Intel card with KMS enabled...

That's good to know that tmux is not the problem.
I am using nouveau with KMS here is part of my grub.cfg
btw nice screenshot what font is that?

 linux   /vmlinuz26 root=/dev/disk/by-uuid/89aa7efc-c50d-4a7f-a8c7-6f395d35b47a ro single video=VGA-1:1366x768@60

Last edited by aluser (2011-02-24 02:06:59)

jasonwryan · 2011-02-24 02:12:54

Perhaps your issue is related to forcing the resolution?

aluser · 2011-02-24 02:18:00

jasonwryan wrote:

Perhaps your issue is related to forcing the resolution?

I dont understand.. what you're saying is nouevau is the problem? That could be possible, I'm going to uninstall it and see what happens, but again the resolution wont be pretty

jasonwryan · 2011-02-24 02:25:59

No, I am saying that as you are forcing the resolution, that may be why your console shots are all b0rked. But there is only one way to find out...

Font is terminus

milomouse · 2011-02-24 02:54:25

Inxsible wrote:

milomouse wrote:
I think he said it's the same for empty tty sessions too
tty meaning when you hit Ctrl+Alt+F# key or just a terminal ? I am talking about a regular terminal

sorry, but a tty is a terminal, it's just provided by the kernel. are you referring to a pseudo-terminal (usually denoted by "pts" or "pty".. e.g. something already nested in a tty, which can be tmux, screen or xterm, rxvt in the X layer, or both). hence without tmux it would be a plain terminal again. i'm guessing now that you mean something in X. not trying to start anything but this was my confusion with your statement as i instantly think of tty when i think [regular] terminal and pts/pty when i think pseudo-terminal and i just wanted to get this straight.

@jason: that was my problem before, i'm glad you mentioned that. forcing a resolution, i mean. when i let the kernel decide the screenshots will work. :} maybe it will work for OP, too, although i do remember having problems with the nouveau on my HP.

aluser · 2011-02-24 03:40:00

Sorry for being so newbish but what do you all mean by forcing resolution exactly? is it that part of the line where it says video=1366x768..etc. If so, I never knew I was forcing for the resolution. All I know is that If I leave the video= part empty I wont be able to start X.

EDIT: nvm the video= part is not necessary for X to start, only when using nvidia. I've been doing a lot of testing and it actually turns out the video= part is not necessary If i delete that part everything runs just fine and the console resolution is the same. however getting rid of that didn't solve the fbshot/fbgrab problem.

Last edited by aluser (2011-02-24 04:01:40)

aluser · 2011-04-20 04:36:02

Does anyone still know of another way to take screenshots. It seems to be a bug with forced resolution as jasonwryan said... but the only good resolution is the forced resolution and I'm not going back to 800x600 on a 1366x768 monitor. Anyone has any ideas? Any input will be appreciated.

EDIT:
Finally got around taking the framebuffer screenshot.
If anyone wants to know, neither fbshot or fbgrab worked, they all returned crappy images, fbdump did the trick.

Last edited by aluser (2011-05-07 23:30:42)

Arch Linux

#1 2011-02-22 21:14:03

[SOLVED] Help! bad picture output of fbshot and fbgrab

#2 2011-02-23 13:50:04

Re: [SOLVED] Help! bad picture output of fbshot and fbgrab

#3 2011-02-23 14:41:40

Re: [SOLVED] Help! bad picture output of fbshot and fbgrab

#4 2011-02-23 16:31:57

Re: [SOLVED] Help! bad picture output of fbshot and fbgrab

#5 2011-02-23 16:51:24

Re: [SOLVED] Help! bad picture output of fbshot and fbgrab

#6 2011-02-23 17:25:13

Re: [SOLVED] Help! bad picture output of fbshot and fbgrab

#7 2011-02-23 17:27:22

Re: [SOLVED] Help! bad picture output of fbshot and fbgrab

#8 2011-02-23 17:29:58

Re: [SOLVED] Help! bad picture output of fbshot and fbgrab

#9 2011-02-23 17:36:15

Re: [SOLVED] Help! bad picture output of fbshot and fbgrab

#10 2011-02-23 17:41:35

Re: [SOLVED] Help! bad picture output of fbshot and fbgrab

#11 2011-02-24 02:03:15

Re: [SOLVED] Help! bad picture output of fbshot and fbgrab

#12 2011-02-24 02:12:54

Re: [SOLVED] Help! bad picture output of fbshot and fbgrab

#13 2011-02-24 02:18:00

Re: [SOLVED] Help! bad picture output of fbshot and fbgrab

#14 2011-02-24 02:25:59

Re: [SOLVED] Help! bad picture output of fbshot and fbgrab

#15 2011-02-24 02:54:25

Re: [SOLVED] Help! bad picture output of fbshot and fbgrab

#16 2011-02-24 03:40:00

Re: [SOLVED] Help! bad picture output of fbshot and fbgrab

#17 2011-04-20 04:36:02

Re: [SOLVED] Help! bad picture output of fbshot and fbgrab

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