Experiencing a problem with my monitor I am wondering if there is some special program for testing a monitor like the memtest program for the memory.. My 17" monitor blanks at regular intervals in a new 9.2 install and a visible desktop can only be achieved by turning the monitor off and on. In order to get rid of the problem I reduced the values for horizontal and vertical frequencies as well as the refresh rate. ACPI and APM are off in the grub menu.lst Read something in the past about ACPI or APM force but did not get the point and cannot find it back. According to the specs the monitor can have 30-70 kHz horizontal, 47-104 Hz vertical with what they call video response 0f 100 MHz nominal with a max resolution of 1280x1024. Have never used this resolution because the letters are to tiny for me but a 1024x768 suits me fine At the moment I have the monitor running with VESA800x600 and 85Hz color depth 16 because that was the monitor spec of my 9.0 version running on the same computer. It seemed to solve the problem. As I am working for the moment more on my 9.0 I was shocked to get the same problem now with this version too. It makes me suspect that it is more a hardware problem. So finely my question, could it be a hardware problem (monitor ran a fortnight at the workshop - Windows of course- without a hitch) or should I first look into my setup.
I've seen some monitors / video cards act differently to the screen blanking and dpms commands. sometimes you need to issue a xset s reset in order to get the screen to come back. I wrote a little script that lets me figure out the differences (attached) I hope it may shed some light on the subject for you..... you can lookup the command with konqueror, just type man:/<command> in Location. B-) On Thursday 24 March 2005 11:58 pm, Constant Brouerius van Nidek wrote:
Experiencing a problem with my monitor I am wondering if there is some special program for testing a monitor like the memtest program for the memory.. My 17" monitor blanks at regular intervals in a new 9.2 install and a visible desktop can only be achieved by turning the monitor off and on. In order to get rid of the problem I reduced the values for horizontal and vertical frequencies as well as the refresh rate. ACPI and APM are off in the grub menu.lst Read something in the past about ACPI or APM force but did not get the point and cannot find it back. According to the specs the monitor can have 30-70 kHz horizontal, 47-104 Hz vertical with what they call video response 0f 100 MHz nominal with a max resolution of 1280x1024. Have never used this resolution because the letters are to tiny for me but a 1024x768 suits me fine At the moment I have the monitor running with VESA800x600 and 85Hz color depth 16 because that was the monitor spec of my 9.0 version running on the same computer. It seemed to solve the problem. As I am working for the moment more on my 9.0 I was shocked to get the same problem now with this version too. It makes me suspect that it is more a hardware problem. So finely my question, could it be a hardware problem (monitor ran a fortnight at the workshop - Windows of course- without a hitch) or should I first look into my setup.
On Friday 25 March 2005 09:32, Brad Bourn wrote:
I've seen some monitors / video cards act differently to the screen blanking and dpms commands. sometimes you need to issue a xset s reset in order to get the screen to come back. I wrote a little script that lets me figure out the differences (attached) I hope it may shed some light on the subject for you.....
you can lookup the command with konqueror, just type man:/<command> in Location.
B-)
On Thursday 24 March 2005 11:58 pm, Constant Brouerius van Nidek wrote:
Experiencing a problem with my monitor I am wondering if there is some special program for testing a monitor like the memtest program for the
Thanks. First ran the dpms_test on my 9.0 setup. The monitor went blank at once and was not seen back ;-(. Tried to run it in console but there it misses the X. So I have to try to solve it without the test first. Yesterday night though I did not have any blackout but this morning as the temperatures began to rise it started again. Night temperatures around 22 C day temps around 27 C in my (open) computer room. The monitor housing feels relatively hot so I have placed an old Apple fan on the housing to get some airflow in the monitor. Hope it helps. In my 9.2 setup I have disabled the standby mode as suggested by BandiPat.
I've seen some monitors / video cards act differently to the screen blanking and dpms commands. sometimes you need to issue a xset s reset in order to get the screen to come back. I wrote a little script that lets me figure out the differences (attached) I hope it may shed some light on
-----Original Message----- From: Constant Brouerius van Nidek [mailto:constant@indo.net.id] Sent: Sunday, 27 March 2005 4:42 PM To: suse-linux-e@suse.com Subject: Re: [SLE] Memtest for a Monitor? On Friday 25 March 2005 09:32, Brad Bourn wrote: the
subject for you.....
you can lookup the command with konqueror, just type man:/<command> in Location.
B-)
On Thursday 24 March 2005 11:58 pm, Constant Brouerius van Nidek wrote:
Experiencing a problem with my monitor I am wondering if there is some special program for testing a monitor like the memtest program for the
Thanks. First ran the dpms_test on my 9.0 setup. The monitor went blank at once and was not seen back ;-(. Tried to run it in console but there it misses the X. So I have to try to solve it without the test first. Yesterday night though I did not have any blackout but this morning as the temperatures began to rise it started again. Night temperatures around 22 C day temps around 27 C in my (open) computer room. The monitor housing feels relatively hot so I have placed an old Apple fan on the housing to get some airflow in the monitor. Hope it helps. In my 9.2 setup I have disabled the standby mode as suggested by BandiPat.
Why is the monitor getting so hot? I don't think thats normal. I'd get it checked. Chris
that test script lets you try different options. I don't know the current state of the file. It will be whatever the last test I ran was. You can rem out different lines to see what works for your setup. That is the testing part (making changes yourself and see what happens) It shows you how to use the different xset commands and their syntax. B-) On Saturday 26 March 2005 11:42 pm, Constant Brouerius van Nidek wrote:
Thanks. First ran the dpms_test on my 9.0 setup. The monitor went blank at once and was not seen back ;-(. Tried to run it in console but there it misses the X. So I have to try to solve it without the test first. Yesterday night though I did not have any blackout but this morning as the temperatures began to rise it started again. Night temperatures around 22 C day temps around 27 C in my (open) computer room. The monitor housing feels relatively hot so I have placed an old Apple fan on the housing to get some airflow in the monitor. Hope it helps. In my 9.2 setup I have disabled the standby mode as suggested by BandiPat.
Constant Brouerius van Nidek zei:
Experiencing a problem with my monitor I am wondering if there is some special program for testing a monitor like the memtest program for the memory.. My 17" monitor blanks at regular intervals in a new 9.2 install and a visible desktop can only be achieved by turning the monitor off and on. In order to get rid of the problem I reduced the values for horizontal and vertical frequencies as well as the refresh rate.
What make is this monitor? I have sold ACER AL1721 (first series) that had problems like you describe. It is getting worse over time, only solution is to replace converter-board. Let ACER shops do it. -- L. de Braal BraHa Systems NL Terneuzen T +31 115 649333 F +31 115 649444
On Friday 25 March 2005 14:49, Leen de Braal wrote:
Constant Brouerius van Nidek zei:
Experiencing a problem with my monitor I am wondering if there is some special program for testing a monitor like the memtest program for the memory.. My 17" monitor blanks at regular intervals in a new 9.2 install and a visible desktop can only be achieved by turning the monitor off and on. In order to get rid of the problem I reduced the values for horizontal and vertical frequencies as well as the refresh rate.
What make is this monitor? I have sold ACER AL1721 (first series) that had problems like you describe. It is getting worse over time, only solution is to replace converter-board. Let ACER shops do it.
Dear Leen, My monitor is produced in Malaysia from ? and is named ADL Xs number L7031LD. The monitor is of course not recognized by Yeast but in the manual (no manufacturer mentioned) the specs are complete. What is a converter board? Can I test the functioning of the monitor/ converter board? Groetjes
Constant Brouerius van Nidek zei:
On Friday 25 March 2005 14:49, Leen de Braal wrote:
Constant Brouerius van Nidek zei:
Experiencing a problem with my monitor I am wondering if there is some special program for testing a monitor like the memtest program for the memory.. My 17" monitor blanks at regular intervals in a new 9.2 install and a visible
Dear Leen, My monitor is produced in Malaysia from ? and is named ADL Xs number L7031LD. The monitor is of course not recognized by Yeast but in the manual (no manufacturer mentioned) the specs are complete. What is a converter board? Can I test the functioning of the monitor/ converter board?
It takes care of the high tension needed for the fluorescent lamps that are the backlight for your tft-panel. If the lamps go out, your screen turns black. In case of the 1721 it also resulted in a complete powerdown of the monitor (all leds went out, maybe some kind of shortcircuit-protection in the powersupply). After some time it would come up again by itself, but this period became longer and longer, and the behaviour started earlier and earlier after powering up the monitor. Testing, I don't know. These cases I experienced was just a design-error in the schematics I think. Acer replaced a pcb under warranty, problem never came back.
Groetjes
-- Check the headers for your unsubscription address For additional commands send e-mail to suse-linux-e-help@suse.com Also check the archives at http://lists.suse.com Please read the FAQs: suse-linux-e-faq@suse.com
-- L. de Braal BraHa Systems NL Terneuzen T +31 115 649333 F +31 115 649444
Fri, 25 Mar 2005, by constant@indo.net.id:
The monitor is of course not recognized by Yeast but in the manual (no
Oh great, now we're all having a yeast infection.
On Friday 25 March 2005 19:20, Theo v. Werkhoven wrote:
Fri, 25 Mar 2005, by constant@indo.net.id:
The monitor is of course not recognized by Yeast but in the manual (no
Oh great, now we're all having a yeast infection.
Dear Theo,
Is your own mistake. You should not only protect your system against virus and
worms but also gainst yeast ;-)
On Friday 25 March 2005 01:58 am, Constant Brouerius van Nidek wrote:
Experiencing a problem with my monitor I am wondering if there is some special program for testing a monitor like the memtest program for the memory.. My 17" monitor blanks at regular intervals in a new 9.2 install and a visible desktop can only be achieved by turning the monitor off and on. In order to get rid of the problem I reduced the values for horizontal and vertical frequencies as well as the refresh rate. ACPI and APM are off in the grub menu.lst Read something in the past about ACPI or APM force but did not get the point and cannot find it back. According to the specs the monitor can have 30-70 kHz horizontal, 47-104 Hz vertical with what they call video response 0f 100 MHz nominal with a max resolution of 1280x1024. Have never used this resolution because the letters are to tiny for me but a 1024x768 suits me fine At the moment I have the monitor running with VESA800x600 and 85Hz color depth 16 because that was the monitor spec of my 9.0 version running on the same computer. It seemed to solve the problem. As I am working for the moment more on my 9.0 I was shocked to get the same problem now with this version too. It makes me suspect that it is more a hardware problem. So finely my question, could it be a hardware problem (monitor ran a fortnight at the workshop - Windows of course- without a hitch) or should I first look into my setup. ==========
Constant, I believe if you check, 9.2 installs a new Powersave program/feature, which is probably your culprit. It will appear as a plug in your systray. Turn it off, disable that firstly. Secondly, check your desktop settings for the power saving features, because by default, it is turned on which puts your monitor into a "standby" mode. Something your monitor may not be able to tolerate. It accessed by right-clicking on the desktop, then Configure desktop>Display>Power Control. regards, Lee -- --- KMail v1.8 --- SuSE Linux Pro v9.2 --- Registered Linux User #225206 Doctors office, Rome: specialist in women and other diseases.
participants (6)
-
BandiPat -
Brad Bourn -
Chris -
Constant Brouerius van Nidek -
Leen de Braal -
Theo v. Werkhoven