Xorg - Resolution issues

Discussion:

Francis Dubé

2009-02-13 17:48:17 UTC

Hi everyone,

I got this TV :
http://www.samsung.com/ca/consumer/detail/spec.do?group=tv&type=tv&subtype=lcd&model_cd=LN40A330J1DXZC&fullspec=F

I'm trying to use it as my screen under FreeBSD 7.1-RELEASE with a
resolution of 1366x768 which is suposed to be suported by the TV,
acording with the TV's specs. I did the same with another very similar
TV and it was working #1 without having to create any Xorg.conf, a plain
startx and the display was perfect (1366x768).

With my new TV, X only start in 1280x720. So I created a config file
with Xorg -configure, then I tried to force Xorg to use 1366x768 but it
keeps loading in 1280x720. In my Xorg.0.log it looks like there's no
support for the resolution I want :

[...]
(==) Using config file: "/etc/X11/xorg.conf"
[...]
(II) RADEON(0): Panel infos found from DDC detailed: 1280x720
[...]
(II) RADEON(0): Supported additional Video Mode:
(II) RADEON(0): clock: 74.2 MHz Image Size: 160 x 90 mm
(II) RADEON(0): h_active: 1280 h_sync: 1390 h_sync_end 1430
h_blank_end 1650 h_border: 0
(II) RADEON(0): v_active: 720 v_sync: 725 v_sync_end 730 v_blanking:
750 v_border: 0
(II) RADEON(0): Supported additional Video Mode:
(II) RADEON(0): clock: 74.2 MHz Image Size: 160 x 90 mm
(II) RADEON(0): h_active: 1920 h_sync: 2008 h_sync_end 2052
h_blank_end 2200 h_border: 0
(II) RADEON(0): v_active: 540 v_sync: 542 v_sync_end 547 v_blanking:
562 v_border: 0
(II) RADEON(0): Ranges: V min: 23 V max: 61 Hz, H min: 26 H max: 68
kHz, PixClock max 150 MHz
(II) RADEON(0): Monitor name: SAMSUNG
[...]
(II) RADEON(0): Output DVI-0 using initial mode 1280x720
[...]

This is how i configured my resolution in my /etc/X11/xorg.conf :
[...]
Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1366x768"
EndSubSection
EndSection
[...]

My video card is a Radeon HD 3450 and my Xorg version is xorg-7.3_2

Also, the only other resolution "supported" by the TV according to the
log file would be 1920x540...but it's not supported by the TV !

Am I missing something ?

Thanks for reading.

Francis

Polytropon

2009-02-13 18:58:26 UTC

Permalink

Maybe you can try

Option "PreferredMode" "1366x768"

in section Monitor?

If it doesn't work, there's always an option to use xrandr via
~/.xinitrc:

xrandr --size 1366x768 &
xrandr --fb 1366x768 &

I have a similar issue with the "ati" driver, using an ATI Radeon 9200
(RV250) which I need to force to 1400x1050 (worked with old XFree86
and the setting in the config file, as you mentioned it). The
autodetection of the screen (21" CRT) leads to stupid values that
are completely unusable.

--
Polytropon

From Magdeburg, Germany

Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...

Francis Dubé

2009-02-13 19:45:08 UTC

Permalink

Post by Polytropon
Maybe you can try
Option "PreferredMode" "1366x768"
in section Monitor?
If it doesn't work, there's always an option to use xrandr via
xrandr --size 1366x768 &
xrandr --fb 1366x768 &
I have a similar issue with the "ati" driver, using an ATI Radeon 9200
(RV250) which I need to force to 1400x1050 (worked with old XFree86
and the setting in the config file, as you mentioned it). The
autodetection of the screen (21" CRT) leads to stupid values that
are completely unusable.

xrandr in my ~/.xinitrc solved my problem !

Thanks a lot !

Francis

Francis Dubé

2009-03-13 14:50:03 UTC

Permalink

Post by Francis DubÃ©
Hi everyone,
http://www.samsung.com/ca/consumer/detail/spec.do?group=tv&type=tv&subtype=lcd&model_cd=LN40A330J1DXZC&fullspec=F
I'm trying to use it as my screen under FreeBSD 7.1-RELEASE with a
resolution of 1366x768 which is suposed to be suported by the TV,
acording with the TV's specs. I did the same with another very similar
TV and it was working #1 without having to create any Xorg.conf, a
plain startx and the display was perfect (1366x768).
With my new TV, X only start in 1280x720. So I created a config file
with Xorg -configure, then I tried to force Xorg to use 1366x768 but
it keeps loading in 1280x720. In my Xorg.0.log it looks like there's
[...]
(==) Using config file: "/etc/X11/xorg.conf"
[...]
(II) RADEON(0): Panel infos found from DDC detailed: 1280x720
[...]
(II) RADEON(0): clock: 74.2 MHz Image Size: 160 x 90 mm
(II) RADEON(0): h_active: 1280 h_sync: 1390 h_sync_end 1430
h_blank_end 1650 h_border: 0
750 v_border: 0
(II) RADEON(0): clock: 74.2 MHz Image Size: 160 x 90 mm
(II) RADEON(0): h_active: 1920 h_sync: 2008 h_sync_end 2052
h_blank_end 2200 h_border: 0
562 v_border: 0
(II) RADEON(0): Ranges: V min: 23 V max: 61 Hz, H min: 26 H max: 68
kHz, PixClock max 150 MHz
(II) RADEON(0): Monitor name: SAMSUNG
[...]
(II) RADEON(0): Output DVI-0 using initial mode 1280x720
[...]
[...]
Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1366x768"
EndSubSection
EndSection
[...]
My video card is a Radeon HD 3450 and my Xorg version is xorg-7.3_2
Also, the only other resolution "supported" by the TV according to the
log file would be 1920x540...but it's not supported by the TV !
Am I missing something ?
Thanks for reading.
Francis
_______________________________________________
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to

I had this problem last month, I tought it was fixed using this little

Post by Francis DubÃ©
If it doesn't work, there's always an option to use xrandr via
xrandr --size 1366x768 &
xrandr --fb 1366x768 &
I have a similar issue with the "ati" driver, using an ATI Radeon 9200
(RV250) which I need to force to 1400x1050 (worked with old XFree86
and the setting in the config file, as you mentioned it). The
autodetection of the screen (21" CRT) leads to stupid values that
are completely unusable.

The screen is located far from my office so I can't be in front of it to
test, that's why I haven't spotted it wasn't working. I tought it was
because when i take a screenshot with 'scrot' i get a full screenshot in
1366x768 and everything is clean, but the TV itself shows a 1280x720
display. I should've watched the Xorg's log instead of simply assuming
it was working with a screenshot, but anyway now my problem is the same
: The PC is configured in 1366x768, but the TV don't care and shows a
1280x720.

Anyone got a similar issue and a way to fix it ?

Thanks,

Francis Dubé

Martin Turgeon

2009-03-16 15:17:02 UTC

Permalink

Post by Francis DubÃ©

I had this problem last month, I tought it was fixed using this little

The screen is located far from my office so I can't be in front of it to
test, that's why I haven't spotted it wasn't working. I tought it was
because when i take a screenshot with 'scrot' i get a full screenshot in
1366x768 and everything is clean, but the TV itself shows a 1280x720
display. I should've watched the Xorg's log instead of simply assuming
it was working with a screenshot, but anyway now my problem is the same
: The PC is configured in 1366x768, but the TV don't care and shows a
1280x720.
Anyone got a similar issue and a way to fix it ?
Thanks,
Francis Dubé

Hi!

I have the same problem with the same model of TV (Samsung A330). Did
you solved your problem?

Thanks,

Martin

Francis Dubé

2009-03-18 15:02:35 UTC

Permalink

Post by Martin Turgeon

Post by Francis DubÃ©

Post by Francis DubÃ©
Hi everyone,
http://www.samsung.com/ca/consumer/detail/spec.do?group=tv&type=tv&subtype=lcd&model_cd=LN40A330J1DXZC&fullspec=F
I'm trying to use it as my screen under FreeBSD 7.1-RELEASE with a
resolution of 1366x768 which is suposed to be suported by the TV,
acording with the TV's specs. I did the same with another very
similar TV and it was working #1 without having to create any
Xorg.conf, a plain startx and the display was perfect (1366x768).
With my new TV, X only start in 1280x720. So I created a config file
with Xorg -configure, then I tried to force Xorg to use 1366x768 but
it keeps loading in 1280x720. In my Xorg.0.log it looks like there's
[...]
(==) Using config file: "/etc/X11/xorg.conf"
[...]
(II) RADEON(0): Panel infos found from DDC detailed: 1280x720
[...]
(II) RADEON(0): clock: 74.2 MHz Image Size: 160 x 90 mm
(II) RADEON(0): h_active: 1280 h_sync: 1390 h_sync_end 1430
h_blank_end 1650 h_border: 0
(II) RADEON(0): v_active: 720 v_sync: 725 v_sync_end 730
v_blanking: 750 v_border: 0
(II) RADEON(0): clock: 74.2 MHz Image Size: 160 x 90 mm
(II) RADEON(0): h_active: 1920 h_sync: 2008 h_sync_end 2052
h_blank_end 2200 h_border: 0
(II) RADEON(0): v_active: 540 v_sync: 542 v_sync_end 547
v_blanking: 562 v_border: 0
68 kHz, PixClock max 150 MHz
(II) RADEON(0): Monitor name: SAMSUNG
[...]
(II) RADEON(0): Output DVI-0 using initial mode 1280x720
[...]
[...]
Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1366x768"
EndSubSection
EndSection
[...]
My video card is a Radeon HD 3450 and my Xorg version is xorg-7.3_2
Also, the only other resolution "supported" by the TV according to
the log file would be 1920x540...but it's not supported by the TV !
Am I missing something ?
Thanks for reading.
Francis
_______________________________________________
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to

I had this problem last month, I tought it was fixed using this

The screen is located far from my office so I can't be in front of it
to test, that's why I haven't spotted it wasn't working. I tought it
was because when i take a screenshot with 'scrot' i get a full
screenshot in 1366x768 and everything is clean, but the TV itself
shows a 1280x720 display. I should've watched the Xorg's log instead
of simply assuming it was working with a screenshot, but anyway now
my problem is the same : The PC is configured in 1366x768, but the TV
don't care and shows a 1280x720.
Anyone got a similar issue and a way to fix it ?
Thanks,
Francis Dubé

Hi!
I have the same problem with the same model of TV (Samsung A330). Did
you solved your problem?
Thanks,
Martin

No I haven't solved my problem yet. Still trying to figure out why my TV
display is in 1280x720. When I take a screenshot with 'scrot' i get a
file like this : 2009-03-18-104527_1360x768_scrot.png. But in the
Xorg.0.log it clearly shows the resolution of the TV itself :

term004# cat /var/log/Xorg.0.log | grep 1360
term004# cat /var/log/Xorg.0.log | grep 1280
(II) RADEON(0): Panel infos found from DDC detailed: 1280x720
(II) RADEON(0): h_active: 1280 h_sync: 1390 h_sync_end 1430
h_blank_end 1650 h_border: 0
(II) RADEON(0): h_active: 1280 h_sync: 1390 h_sync_end 1430
h_blank_end 1650 h_border: 0
(II) RADEON(0): Output DVI-0 using initial mode 1280x720
Mode 1280x720 - 1650 750 5
Mode 1280x720 - 1650 750 5
(II) RADEON(0): Modeline "1280x720"x0.0 74.25 1280 1390 1430 1650
720 725 730 750 +hsync +vsync (45.0 kHz)
(II) RADEON(0): h_active: 1280 h_sync: 1390 h_sync_end 1430
h_blank_end 1650 h_border: 0

I tried 'xrandr' in my .xinitrc file, which only affect my
screenshots... I also tried Prefered Mode in the Xorg conf, no effects.
Any tips would be very appreciated ! Thanks.

Francis Dubé

Frank Shute

2009-03-20 04:46:53 UTC

Permalink

Post by Martin Turgeon

Post by Francis DubÃ©
Hi everyone,
http://www.samsung.com/ca/consumer/detail/spec.do?group=tv&type=tv&subtype=lcd&model_cd=LN40A330J1DXZC&fullspec=F
I'm trying to use it as my screen under FreeBSD 7.1-RELEASE with a
resolution of 1366x768 which is suposed to be suported by the TV,
acording with the TV's specs. I did the same with another very
similar TV and it was working #1 without having to create any
Xorg.conf, a plain startx and the display was perfect (1366x768).
With my new TV, X only start in 1280x720. So I created a config file
with Xorg -configure, then I tried to force Xorg to use 1366x768 but
it keeps loading in 1280x720. In my Xorg.0.log it looks like there's
[...]
(==) Using config file: "/etc/X11/xorg.conf"
[...]
(II) RADEON(0): Panel infos found from DDC detailed: 1280x720
[...]
(II) RADEON(0): clock: 74.2 MHz Image Size: 160 x 90 mm
(II) RADEON(0): h_active: 1280 h_sync: 1390 h_sync_end 1430
h_blank_end 1650 h_border: 0
(II) RADEON(0): v_active: 720 v_sync: 725 v_sync_end 730
v_blanking: 750 v_border: 0
(II) RADEON(0): clock: 74.2 MHz Image Size: 160 x 90 mm
(II) RADEON(0): h_active: 1920 h_sync: 2008 h_sync_end 2052
h_blank_end 2200 h_border: 0
(II) RADEON(0): v_active: 540 v_sync: 542 v_sync_end 547
v_blanking: 562 v_border: 0
68 kHz, PixClock max 150 MHz
(II) RADEON(0): Monitor name: SAMSUNG
[...]
(II) RADEON(0): Output DVI-0 using initial mode 1280x720
[...]
[...]
Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1366x768"
EndSubSection
EndSection
[...]
My video card is a Radeon HD 3450 and my Xorg version is xorg-7.3_2
Also, the only other resolution "supported" by the TV according to
the log file would be 1920x540...but it's not supported by the TV !
Am I missing something ?
Thanks for reading.
Francis
_______________________________________________
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to

I had this problem last month, I tought it was fixed using this

The screen is located far from my office so I can't be in front of it
to test, that's why I haven't spotted it wasn't working. I tought it
was because when i take a screenshot with 'scrot' i get a full
screenshot in 1366x768 and everything is clean, but the TV itself
shows a 1280x720 display. I should've watched the Xorg's log instead
of simply assuming it was working with a screenshot, but anyway now
my problem is the same : The PC is configured in 1366x768, but the TV
don't care and shows a 1280x720.
Anyone got a similar issue and a way to fix it ?
Thanks,
Francis Dubé

Hi!
I have the same problem with the same model of TV (Samsung A330). Did
you solved your problem?
Thanks,
Martin

No I haven't solved my problem yet. Still trying to figure out why my TV
display is in 1280x720. When I take a screenshot with 'scrot' i get a
file like this : 2009-03-18-104527_1360x768_scrot.png. But in the
term004# cat /var/log/Xorg.0.log | grep 1360
term004# cat /var/log/Xorg.0.log | grep 1280
(II) RADEON(0): Panel infos found from DDC detailed: 1280x720
(II) RADEON(0): h_active: 1280 h_sync: 1390 h_sync_end 1430
h_blank_end 1650 h_border: 0
(II) RADEON(0): h_active: 1280 h_sync: 1390 h_sync_end 1430
h_blank_end 1650 h_border: 0
(II) RADEON(0): Output DVI-0 using initial mode 1280x720
Mode 1280x720 - 1650 750 5
Mode 1280x720 - 1650 750 5
(II) RADEON(0): Modeline "1280x720"x0.0 74.25 1280 1390 1430 1650
720 725 730 750 +hsync +vsync (45.0 kHz)
(II) RADEON(0): h_active: 1280 h_sync: 1390 h_sync_end 1430
h_blank_end 1650 h_border: 0
I tried 'xrandr' in my .xinitrc file, which only affect my
screenshots... I also tried Prefered Mode in the Xorg conf, no effects.
Any tips would be very appreciated ! Thanks.
Francis Dubé

Have you tried to use ModeLine in your monitor section of xorg.conf.
E.g:

Section "Monitor"
Identifier "Monitor0"
VendorName "IVM"
ModelName "PLE480/481"
### Comment all HorizSync and VertRefresh values to use DDC:
HorizSync 24.0 - 83.0
VertRefresh 55.0 - 76.0
Option "DPMS"
ModeLine "1280x1024" 108.00 1280 1340 1452 1688 1024 1025 1028 1066 +hsync +vsync

EndSection

I got the numbers (all on one line) after the "1280x1024" by running
xvidtune.

Regards,

--
Frank

Contact info: http://www.shute.org.uk/misc/contact.html