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On 2015-12-23 14:18, Felix Miata wrote:
Ken Heard composed on 2015-12-22 15:22 (UTC+0700):
I have a box with Debian Wheezy and TDE installed in it.
So do I. :-)
This is its motherboard: http://us.msi.com/product/motherboard/B85-G41-PC-Mate.html
What's yours? At least, tell which chipset and video you have via lspci output.
This is my parentboard: http://www.gigabyte.com/products/product-page.aspx?pid=4600#ov
The chipset is the Intel Z87 which is the same as the H87, except the Z87 is designed for overclocking whhich I do not use.
Output of lspci: 00:00.0 Host bridge: Intel Corporation Haswell DRAM Controller (rev 06) 00:02.0 VGA compatible controller: Intel Corporation Haswell Integrated Graphics Controller (rev 06) 00:03.0 Audio device: Intel Corporation Haswell HD Audio Controller (rev 06) 00:14.0 USB controller: Intel Corporation Lynx Point USB xHCI Host Controller (rev 05) 00:16.0 Communication controller: Intel Corporation Lynx Point MEI Controller #1 (rev 04) 00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I217-V (rev 05) 00:1a.0 USB controller: Intel Corporation Lynx Point USB Enhanced Host Controller #2 (rev 05) 00:1b.0 Audio device: Intel Corporation Lynx Point High Definition Audio Controller (rev 05) 00:1c.0 PCI bridge: Intel Corporation Lynx Point PCI Express Root Port #1 (rev d5) 00:1c.3 PCI bridge: Intel Corporation Lynx Point PCI Express Root Port #4 (rev d5) 00:1c.4 PCI bridge: Intel Corporation Lynx Point PCI Express Root Port #5 (rev d5) 00:1d.0 USB controller: Intel Corporation Lynx Point USB Enhanced Host Controller #1 (rev 05) 00:1f.0 ISA bridge: Intel Corporation Lynx Point LPC Controller (rev 05) 00:1f.2 SATA controller: Intel Corporation Lynx Point 6-port SATA Controller 1 [AHCI mode] (rev 05) 00:1f.3 SMBus: Intel Corporation Lynx Point SMBus Controller (rev 05) 02:00.0 Ethernet controller: Atheros Communications Inc. AR8161 Gigabit Ethernet (rev 10) 03:00.0 Network controller: Intel Corporation Centrino Wireless-N 2230 (rev c4)
Note that there are two audio controllers and two ethernet controllers. I am not sure which auto controller is used --or whether it matters -- but I have to use the Atheros ethernet controller because the Intel one does not work.
The GPU has three connectors, one DVI and two HDMI.
Mine has one each of VGA, DVI and HDMI.
Mine has one DVI and two HDMI.
I have two monitors connected to it.
Again do I. :-)
The diagonal measurement of one is 49 cm. It has a 1600x900 resolution and is connected to the box by a DVI cable.
Diagonal of my 1680x1050 connected via VGA cable is 56cm.
The other is a TV/monitor with a diagonal measurement of 124 cm (49 inches). It is connected to the box by HDMI.
The resolution of this monitor is 1920x1080 (FHD), the same as yours although my screen diagonal is 7 cm shorter than yours..
Diagonal of my 1920x1080 connected by DVI to PC and HDMI to TV is 80cm.
The box recognizes its existence, but the display on it has the same resolution as the smaller monitor.
Can't say for sure why, but based on my experience, it should be a surmountable problem. Possibly HDCP is affecting behavior, or the HDMI cable. Have you tried any other cables? Cheaper HDMI cables are often a cause of otherwise inexplicable trouble.
It is a 1.4a HDMI cable 10 m long.
It consequently uses only about 40-45% of the screen area, nor is it centred on the screen.
What's likely to be happening here is that the TV does not support the lower 1600x900 mode that Xorg automatically uses without being told otherwise for the larger resolution screen, so both falls back to a lower mode, and displays that mode without stretching, confining to the pixels on the 1920x1080 screen matching the actual mode used. If there is a video mode dictated on the kernel's cmdline (from bootloader), Xorg could be using it, as the Intel driver will do so unless told by xrandr or xorg.conf* to do otherwise.
I don't know where to find the cmdline; I have never used xrandr; and there is no xorg.conf anywhere in my box.
It starts more or less from the upper left corner and leaves an L shaped unused black space on the bottom and right sides. The left side does not correspond to the left side of the screen; a strip on the left side of the display is seen on the smaller monitor but not on the large one.
IME, black/blank space is always at either bottom or right, but only in a screenshot, not on the screen output.
Sounds like neither display is being run in native mode. What is output from 'cat /proc/cmdline'? The whole of /var/log/Xorg.0.log may provide additional useful info.
cat /proc/cmdline returns the following: BOOT_IMAGE=/vmlinuz-3.16.0-0.bpo.4-amd64 root=UUID=056f8d50-7958-4655-bfa6-39b5d03f0b03 ro quiet
What seems to me to be relevant in /var/log/Xorg.0.log follows. [ 57.306] X Protocol Version 11, Revision 0 [ 57.306] Build Operating System: Linux 3.16.0-4-amd64 x86_64 Debian [ 57.306] Current Operating System: Linux TH 3.16.0-0.bpo.4-amd64 #1 SMP Debian 3.16.7-ckt11-1+deb8u6~bpo70+1 (2015-11-11) x86_64 [ 57.306] Kernel command line: BOOT_IMAGE=/vmlinuz-3.16.0-0.bpo.4-amd64 root=UUID=056f8d50-7958-4655-bfa6-39b5d03f0b03 ro quiet [ 57.306] Build Date: 09 February 2015 09:46:52AM [ 57.306] xorg-server 2:1.12.4-6+deb7u6 (Julien Cristau jcristau@debian.org) [ 57.306] Current version of pixman: 0.26.0 [ 57.306] Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. [ 57.306] Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. [ 57.306] (==) Log file: "/var/log/Xorg.0.log", Time: Wed Dec 23 07:58:00 2015 [ 57.318] (==) Using system config directory "/usr/share/X11/xorg.conf.d" [ 57.398] (==) No Layout section. Using the first Screen section. [ 57.398] (==) No screen section available. Using defaults. [ 57.398] (**) |-->Screen "Default Screen Section" (0) [ 57.398] (**) | |-->Monitor "<default monitor>" [ 57.398] (==) No monitor specified for screen "Default Screen Section". Using a default monitor configuration.
Is it possible to create a display resolution larger than 1600x900 for the large monitor and properly centred on the screen, possibly using the ‘Monitor and Display’ feature of the TDE Control Centre
The rest of your post is so far beyond my experience and will require more study on my part of the URLs on your website. I do not have time to do that study tonight or for obvious reasons in the next few days. I may have questions to ask later.
In any event, thank you for all the information herein. I have learned a lot already, but obviously I have more to learn. I feel that it is only a matter of time before I solve the problem I described in my original post.
Ken - ------------------------------------------------------------------
Using TDE controls I've never tried. I always trust Xorg configuration to get screens the way I want them. Here are two such ways:
Over/Under: http://fm.no-ip.com/SS/KDE/tdeDesktop-1920x2130x120viaXrandr-iHaswell.jpg
Side by side: http://fm.no-ip.com/SS/KDE/tdeDesktop-3600x1080x120viaXorgdotconf-iHaswell.j...
In the over/under you can see the xrandr command responsible in the Konsole windows (and from whence it came, a personal creation). For the side by side I used this xorg.conf instead of xrandr: http://fm.no-ip.com/Share/Linux/xorg.conf-intel-vga1680x1050left-digi1920x10...
Of course the disparity between my screen sizes and yours are smaller, but they do have different native resolutions, and principles in controlling them are the same.
Note that in both my configurations I have forced logical DPI to a value that suits my needs. Via xrandr there are two ways to do this, --dpi and --fbmm. In xorg.conf, DisplaySize controls it. You can pick one that best suits your environment and display size disparity. If you don't, DPI will be forced to 96 on the lower resolution screen, and fall where happenstance puts it on the larger. Here's a file with examples, saving the trouble of calculating sizes to achieve many DPI possibilities: http://fm.no-ip.com/Share/Linux/DisplaySize
This is the web URL shown in the Firefox and SeaMonkey windows: http://fm.no-ip.com/Auth/dpi-screen-window.html
This is the script responsible for the output shown in the Konsole windows: http://fm.no-ip.com/Share/Linux/xfetch.sh
Hope this helps!