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Old 09-22-07, 11:51 PM   #1
muttonchops
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Default 100.14.19 breaks TwinView screen size detection?

Hi,

I run Ubuntu Gutsy on a Toshiba Satellite A100 (GeForce 7300 Go). Performance has improved slightly, however a large problem has emerged for me concerning the nvidia-settings app and TwinView. No matter what screen I try to plug into the VGA port, the program now refuses to detect the maximum resolution of the external monitor. It happily did this with the previous driver release.

I've tested this with three separate VGA monitors (Sony Bravia television, Samsung LCD screen, Benq LCD screen); all of which give a choice between 640x480 and 320x240. Both these resolutions work, but they're both rubbish compared to the native resolution.

Is there any chance of this being fixable without having to mess with xorg.conf? I love TwinView, more specifically how you can attach things in userspace on-the-fly.
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Old 09-22-07, 11:52 PM   #2
muttonchops
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Default Re: 100.14.19 breaks TwinView screen size detection?

Output from nvidia-bug-report.sh
Attached Files
File Type: log nvidia-bug-report.log (106.1 KB, 103 views)
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Old 09-23-07, 05:57 AM   #3
pe1chl
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Default Re: 100.14.19 breaks TwinView screen size detection?

You have configured only a single monitor in xorg.conf. What did you expect to happen?
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Old 09-23-07, 06:31 PM   #4
muttonchops
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Default Re: 100.14.19 breaks TwinView screen size detection?

Oh. So the ability to load up nvidia-settings, click "X Server Display Configuration", click "Detect Displays", enable the external CRT-0 as a TwinView screen and set the device's max resolution was actually a very elaborate bug?

I don't want a permanent second screen. I like to hook my lappy up to projectors now and then.
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Old 09-23-07, 06:41 PM   #5
netllama
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Default Re: 100.14.19 breaks TwinView screen size detection?

Does configuring X for two display devices works as desired with respect to valid modes? If not, then this is unrelated to nvidia-settings, and you need to provide a bug report against the failing configuration, per the forum sticky posts.
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Old 09-24-07, 05:31 AM   #6
Laubzega
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Default Re: 100.14.19 breaks TwinView screen size detection?

Same problem on my laptop when connecting by VGA cable to 42" plasma. Turns out the vertical and horizontal frequency ranges of the TV were detected improperly and only allowed modes like 320x240 and 640x480. Workaround: I have saved the config to xorg.conf, then changed the max. vertical frequency to larger value and now 1024x768 works as it did with 100.14.11.
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Old 09-24-07, 05:33 AM   #7
Laubzega
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Default Re: 100.14.19 breaks TwinView screen size detection?

Correction: I have changed max. _horizontal_ frequency to larger value. Vertical was already large enough.
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