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lukataylo 02-14-2008 09:29 AM

monitor problem on 19" Hannstar AH191D Widescreen Multimedia Monitor
 
All right i just installed Linux Ubuntu and my monitor (19" Hannstar AH191D Widescreen Multimedia Monitor) just won't work properly it comes up with distortions ( black lines and dots)One is wide enough to see that it contains display material from the right of the screen, and this line is near the left. I tried changing the driver settings but there was no driver realsed for this type of monitor so i tried entering them manually still the same problem remains. Here:

Graphics card:

SiS- silicon integrated systems chipset

Monitor:
•19” TFT Color LCD Monitor
•Crisp, Clear Display for Windows
•Recommended Resolutions: 1440 X 900 @60Hz
•EPA ENERGY STAR®
•Ergonomic Design
•Space Saving, Compact Case Design

Additional monitor info:

19" HannSpree AH191 Widescreen/DVI TFT

SPECIFICATIONS
Driving system TFT Color LCD
LCD Panel Size 48.2cm(19.0")
Pixel pitch 0.285mm(H) x 0.285mm(V)
R,G,B Analog Interface
Video
Digital (Dual-Input Model) H/V TTL
Input H-Frequency 31KHz – 80KHz
V-Frequency 55 – 75Hz
Display Colors 16.2M Colors
Max. Resolution 1440 x 900 @75Hz
VESA DDC2BTM
Plug & Play
ON Mode ≤36.7W
EPA ENERGY STAR®
OFF Mode ≤2W
Rated Power 1.5W rms (Per channel)
Audio output
D-Sub 15pin
Input Connector
DVI-D 24pin (Dual-Input Model)
Hor. :376.2mm
Maximum Screen Size
Ver. :301.06mm
Power Source 100~240VAC,50/60HZ
Operating Temp: 5° to 40°C
Environmental
Storage Temp.: -20° to 60°C
Considerations
Operating Humidity: 20% to 80%
440(W) x 358(H) x 207(D) mm
Dimensions
17.33(W)×14.11”(H)×8.16”(D)
5.5 kg / 4.5 kg
Weight (GW/NW)
12.1 lb / 9.9 lb

lukataylo 02-14-2008 09:29 AM

here is the image
 
http://http://img134.imageshack.us/i...problemfb0.gif

Drakeo 02-14-2008 09:48 AM

login in a console mode and do a xorgconfig. and find out your monitors range and default resolution

johnsfine 02-14-2008 10:06 AM

Quote:

Originally Posted by lukataylo (Post 3056918)
Graphics card:

SiS- silicon integrated systems chipset

I think the issue is more likely to be related to the graphics card than the monitor. You haven't said much about the Graphics card.

Check the /etc/X11/xorg.conf and /var/log/Xorg.0.log to see what driver you are using for the Graphics card and anything else you can determine about it.

Quote:

•Recommended Resolutions: 1440 X 900 @60Hz
What resolution and refresh rate are you actually using?

lukataylo 02-15-2008 01:40 PM

Quote:

Originally Posted by johnsfine (Post 3056967)
I think the issue is more likely to be related to the graphics card than the monitor. You haven't said much about the Graphics card.

Check the /etc/X11/xorg.conf and /var/log/Xorg.0.log to see what driver you are using for the Graphics card and anything else you can determine about it.



What resolution and refresh rate are you actually using?



How do i check it i am a Linux noob

pixellany 02-15-2008 02:36 PM

Use any editor to open the file: /etc/X11/xorg.conf
Or--in a terminal--enter: "more /etc/X11/xorg.conf" (no quotes) Use the spacebar to scroll down. Look for sections similar to what is shown below and post what you find.

These are edited heavily to illustrate what you are looking for:
Code:

Section "Monitor"
    Identifier "monitor1"
    HorizSync 24-92
    VertRefresh 50-75
EndSection

Section "Device"
    Identifier "device1"
    Driver "radeon"
EndSection

Section "Screen"
    Identifier "screen1"
    Device "device1"
    Monitor "monitor1"
    DefaultColorDepth 24

    Subsection "Display"
        Depth 24
        Modes "1600x1200"
    EndSubsection
EndSection


lukataylo 02-15-2008 03:18 PM

Quote:

Section "Device"
Identifier "Silicon Integrated Systems [SiS] 661/741/760 PCI/AGP or
662/761Gx PCIE VGA Display Adapter"
Boardname "sis"
Busid "PCI:1:0:0"
Driver "sis"
Screen 0
EndSection

Section "Monitor"
Identifier "AH191"
Vendorname "Plug 'n' Play"
Modelname "Plug 'n' Play"
modeline "800x600@56" 36.0 800 824 896 1024 600 601 603 625 +hsync +vsync
modeline "800x600@72" 50.0 800 856 976 1040 600 637 643 666 +hsync +vsync
modeline "800x600@75" 49.5 800 816 896 1056 600 601 604 625 +hsync +vsync
modeline "800x600@60" 40.0 800 840 968 1056 600 601 605 628 +hsync +vsync
modeline "1152x768@54" 64.995 1152 1178 1314 1472 768 771 777 806 +hsync +vsy
nc
modeline "1280x854" 80.0 1280 1309 1460 1636 854 857 864 896 +hsync +vsync
modeline "1280x768@60" 80.14 1280 1344 1480 1680 768 769 772 795 -hsync +vsyn
c
modeline "1280x720@60" 74.48 1280 1336 1472 1664 720 721 724 746 -hsync +vsyn
c
modeline "1280x800@75" 107.21 1280 1360 1496 1712 800 801 804 835 -hsync +vsy
nc
modeline "1280x768@75" 102.98 1280 1360 1496 1712 768 769 772 802 -hsync +vsy
nc
modeline "1280x800@60" 83.46 1280 1344 1480 1680 800 801 804 828 -hsync +vsyn
c
modeline "1440x900@75" 136.49 1440 1536 1688 1936 900 901 904 940 -hsync +vsy
nc
modeline "1440x900@60" 106.47 1440 1520 1672 1904 900 901 904 932 -hsync +vsy
nc
modeline "1600x1024@60" 136.36 1600 1704 1872 2144 1024 1025 1028 1060 -hsync
+vsync
modeline "1680x1050@60" 147.14 1680 1784 1968 2256 1050 1051 1054 1087 -hsync
+vsync
modeline "1680x1050@75" 188.07 1680 1800 1984 2288 1050 1051 1054 1096 -hsync
+vsync
modeline "1920x1200@60" 193.16 1920 2048 2256 2592 1200 1201 1204 1242 -hsync
+vsync
Gamma 1.0
EndSection

Section "Screen"
Identifier "Default Screen"
Device "Silicon Integrated Systems [SiS] 661/741/760 PCI/AGP or
662/761Gx PCIE VGA Display Adapter"
Monitor "AH191"
Defaultdepth 24
SubSection "Display"
Depth 24
Virtual 1920 1200
Modes "1440x900@60" "1600x1024@60" "1440x900@75"
"1680x1050@60" "1280x800@60" "1680x1050@75" "1280x768@75" "1920x1200@60"
"1280x800@75" "1280x720@60" "1280x768@60" "1280x854" "1152x768@54"
"800x600@60" "800x600@75" "800x600@72" "800x600@56"
EndSubSection
EndSection

Section "ServerLayout"
Identifier "Default Layout"
screen 0 "Default Screen" 0 0
Inputdevice "Generic Keyboard"
Inputdevice "Configured Mouse"

# Uncomment if you have a wacom tablet
# InputDevice "stylus" "SendCoreEvents"
# InputDevice "cursor" "SendCoreEvents"

this is it ( i think it is the chipset because i found someone who had the same problem with a sis chipset. Thanks for your interest and please help

pixellany 02-15-2008 04:35 PM

I don't know what might be the issues with "sis" driver, but Google will surely have something (I peeked).

Things to try:

Comment out the line starting with "Virtual" (just add "#" --no quotes-- at the beginning) What this does is put the desktop into a space larger than the screen---very confusing (to me) turn it back on later to see if you like it

For readability if nothing else, delete all the modelines except the one for 1440x900@60 and maybe 1440x900@75 . Likewise, delete all the modes except the two for 1440x900.
(LCDs always want to be at their native resolution and most are not useful above 60Hz---I'm sitting here on one running at 50 and there is no hint of flicker.)

To edit xorg.conf, you will need to use "su" to become root (or maybe sudo). Then you can use any editor--eg gedit, kedit, nano,
It's a good idea to make a copy of the file before changing it.

eg:
cd /etc/X11
su
<password>
cp xorg.conf xorg.conf.copy
nano xorg.conf
..
make changes
..
save

lukataylo 02-15-2008 08:07 PM

as i said before i am only an armature at using Linux and find your solution a bit hard to understand, please note that i have also adjusted my screen to 1280x720 @ 60hz as i found the default monitor settings 1440x900 @60hz too bad (too much distortions) Anyway i appreciate your help and if possible provide a more detailed guide to the possible solution.

pixellany 02-15-2008 10:24 PM

1280x720 is a 16:9 aspect ratio. Your monitor has a native resolution of 1440x900, which is 16:10. 1280x720 is the one I would expect to show distortion.

Again, I can't speak to the choice of video card or driver.

As for editing xorg.conf, which part of the instructions did you not understand? Please don't hesitate to ask the most basic questions---we're here to help.

One thing that can be intimidating is the terminal and the various commands. In the long run, there is a high payoff for learning a few basics.

Drakeo 02-18-2008 07:46 AM

press the alt F1 you will see a menu pop up if not press the windows button. Yes the one on you keyboard that looks like windows that could also bring up your menu. go to system admin there you will see the screen resolution click on it and then change your resolution all will be well. if not if you hold you mouse at the edge your screen will move with it. you may be able to open a terminal then type display and type xorg then push the tab button you will then get some comamands for xorg. if you get xorgcfg use it if you get xorgsetup that is better if you get xorgconfig you better know what your doing.


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