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Old 11-30-2014, 01:26 PM   #1
kathbeau
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How to set screen resolution: Debian wheezy and monitor Dell SR2320L


Linux newbie here. Running a Strata 7440 with Debian 7 pre-installed for me.

I have plugged in a Dell SR2320L monitor, which is displaying in resolution 1024x768. The monitor settings say it can display in 1920x1080, which is what I would prefer (and what it has done on a Windows PC). I opened KDE System Settings -> Size & Orientation, and the settings I have are the only option available.

In searching here and the Internet at large, I'm gleaning that I need to install appropriate graphics drivers. So I opened Synaptic Package Manager and filtered on "graphics", but nothing jumped out from the long list of packages as what I need to do.

I am trying to learn, and will be grateful if somebody can point me to information that includes step-by-step instructions.

Thanks,
Kathleen
 
Old 11-30-2014, 02:07 PM   #2
jdkaye
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Hi Kathleen,
Do you know what graphics card you have? If so, let us know. Otherwise you can type the following command in a terminal and post the output.
Code:
lspci |grep -i vga
For example, on my machine if I give that command I get this:
Quote:
~$ lspci |grep -i vga
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV710 [Radeon HD 4350/4550]
And so I use the radeon graphics driver supplied by the kernel and I can use 1920x1080 resolution.
jdk
 
Old 11-30-2014, 02:16 PM   #3
kathbeau
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Hi jdk,

$ uname -a
Linux mix 3.16-0.bpo.2-amd64 #1 SMP Debian 3.16.3-2~bpo70+1 (2014-09-21) x86_64 GNU/Linux

$ lspci | grep -i vga
00:02.0 VGA compatible controller: Intel Corporation Haswell Integrated Graphics Controller (rev 06)

I tried filtering Synaptic on "Haswell" (no packages) and "Intel" (many packages, but I have no idea if any would be correct).

Thanks for responding,
Kathleen
 
Old 11-30-2014, 02:54 PM   #4
jdkaye
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I found this page about your graphics controller: https://h-node.org/videocards/view/e...oller--rev-06-
Have you installed the xserver-xorg-video-intel package? If so what version is it?
jdk
 
Old 11-30-2014, 04:19 PM   #5
kathbeau
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Quote:
Originally Posted by jdkaye View Post
I found this page about your graphics controller: https://h-node.org/videocards/view/e...oller--rev-06-
Thank you, but I'm afraid I don't know what to do with this link.

Here is what I get from lspci -v (differences boldfaced):

00:02.0 VGA compatible controller: Intel Corporation Haswell Integrated Graphics Controller (rev 06) (prog-if 00 [VGA controller])
Subsystem: Micro-Star International Co., Ltd. Device 10e9
Flags: bus master, fast devsel, latency 0, IRQ 48
Memory at f7800000 (64-bit, non-prefetchable) [size=4M]
Memory at e0000000 (64-bit, prefetchable) [size=256M]
I/O ports at f000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915


Quote:
Have you installed the xserver-xorg-video-intel package? If so what version is it?
jdk
Yes, the xerver-xorg-video-intel package was installed by the vendor who set up my laptop. It is version 2:2.19.0-6, but because I have refreshed my packages using wheezy-backports, I see that version 2:2.21.15-2~bpo70 is available. However, before I just rush into something that I will regret, should I install that version?
 
Old 11-30-2014, 06:30 PM   #6
EDDY1
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You'll probably need to create a xorg.conf file & manually edit
https://wiki.debian.org/Xorg
Or use xrandr
http://superuser.com/questions/71679...tion-in-debian
 
Old 12-01-2014, 12:38 AM   #7
jdkaye
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Quote:
Originally Posted by kathbeau View Post
Thank you, but I'm afraid I don't know what to do with this link.

Here is what I get from lspci -v (differences boldfaced):

00:02.0 VGA compatible controller: Intel Corporation Haswell Integrated Graphics Controller (rev 06) (prog-if 00 [VGA controller])
Subsystem: Micro-Star International Co., Ltd. Device 10e9
Flags: bus master, fast devsel, latency 0, IRQ 48
Memory at f7800000 (64-bit, non-prefetchable) [size=4M]
Memory at e0000000 (64-bit, prefetchable) [size=256M]
I/O ports at f000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: i915




Yes, the xerver-xorg-video-intel package was installed by the vendor who set up my laptop. It is version 2:2.19.0-6, but because I have refreshed my packages using wheezy-backports, I see that version 2:2.21.15-2~bpo70 is available. However, before I just rush into something that I will regret, should I install that version?
That was just to show you that the driver being used was i915. Your lspci -v output confirms that you are indeed using i915. I read somewhere that i915 before a given version number didn't work well. If I manage to find that page again, I'll post it.
jdk
 
Old 12-01-2014, 12:48 AM   #8
EDDY1
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Have you installed the firmware-linux packages & intel-microcode?
 
Old 12-01-2014, 10:07 AM   #9
kathbeau
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Quote:
Originally Posted by EDDY1 View Post
Have you installed the firmware-linux packages & intel-microcode?
The firmware-linux-free v3.2 package is installed, but not the firmware-linux package (v0.43~bpo70+1 available).

Okay, this is interesting (and over my head): When I quick-filter Synaptic for intel-microcode (not installed, but version 3.20140913.1~bpo is available), I also see firmware-linux-nonfree (not installed, v0.43~bpo70+1 available). The quick-filter on "linux-firmware" does not display the -nonfree package.

QUESTION: Should I install any/all of these packages?

Thank you for the links regarding configuring Xorg.conf and xrandr. Sad to say, these raise more questions than answers. For example, the Debian wiki says to "Switch to a console as root (not a terminal emulator in X)", and I have no idea how to do that... my system boots into the KDE desktop, and a terminal window is all I know.

EDIT: Found it! The Debian Reference Manual told me how to switch into the console and login as root (Ctrl+Alt+F1) and how to switch back to KDE (Ctrl+Alt+F7).

I'll do some more searching to see what I can learn about Xorg.conf and xrandr. If all else fails, the vendor who set up my laptop for me will be open in a few hours and I'll call and ask them for guidance.

I just found a Debian page that points me to lxrandr, which holds appeal because of this sentence in the description:

Quote:
This tool doesn't aim to be a full randr frontend. It's a utility for grandma, not for geeks.
That sounds about right for me!!

When I figure it out, I'll post what I did here. Thanks for your help.

Kathleen

Last edited by kathbeau; 12-01-2014 at 10:29 AM. Reason: found an answer to one of my questions
 
Old 12-13-2014, 09:22 AM   #10
kathbeau
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This has been so difficult, and I think others may encounter the issue, so I want to update this post with new information provided to me by the vendor from whom I purchased my laptop.

He told me that the xserver-xorg-video-intel driver is not up to date by default in Wheezy, so it has to be retrieved from Debian backports. To do so, he had me modify /etc/apt/sources.list, adding this line and commenting out all other lines:

deb http://ftp.debian.org/debian/ wheezy-backports main

Next, run sudo apt-get update in terminal.

Now install the xserver-xorg-video-intel file:

sudo apt-get install xserver-xorg-video-intel

He then had me restore the sources.list back to its previous state, and re-run sudo apt-get update.

Reboot the system, and it should load the new xserver-xorg-video-intel file.

This worked for me, in that I now have more options for screen resolution. However, the highest option it gave me was 1366x768, and that is an option only for the eDP1 (i.e., the built-in) monitor. The VGA1 options top out at 1024x768 (I'm going for 1920x1080, which is what my external monitor supports).

So I'm not out of the woods, but with this new information I'm going to take this to a new thread and see if somebody can give me more insights.

BTW, my vendor said that Debian Jessie will have this all built in natively.

Kathleen
 
Old 12-14-2014, 11:09 AM   #11
EDDY1
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In a couple of months Jessie will be considered stable so you may as well get ready for it.
 
Old 12-22-2014, 03:21 PM   #12
kathbeau
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This is to complete the information in my last post. Once I had the correct package installed, I only needed to plug the monitor into the HDMI port. I was plugged into VGA. I'm an idiot WRT hardware, even when people were trying to point out this issue to me. Apologies all around, but the main thing is I'm now working in 1920x1080, and very happy.

Kathleen
 
Old 12-23-2014, 02:18 AM   #13
EDDY1
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Quote:
Originally Posted by kathbeau View Post
This is to complete the information in my last post. Once I had the correct package installed, I only needed to plug the monitor into the HDMI port. I was plugged into VGA. I'm an idiot WRT hardware, even when people were trying to point out this issue to me. Apologies all around, but the main thing is I'm now working in 1920x1080, and very happy.

Kathleen
Congratulations on your success.
 
  


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