Difference between revisions of "Problem with video output switching"
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==Affected Models== | ==Affected Models== | ||
| + | *ThinkPad {{T40}}, {{T40p}}, {{T41}}, {{T41p}}, {{T42}}, {{T42p}}, {{T43}}, {{T43p}} | ||
*ThinkPad {{X41}} | *ThinkPad {{X41}} | ||
==Problem Description== | ==Problem Description== | ||
| − | Disabling the internal LCD (e.g. when using an external Monitor) doesn't seem to work | + | ===Problems with Intel chipsets=== |
| + | Disabling the internal LCD (e.g. when using an external Monitor) doesn't seem to work reliably. | ||
* i810switch doesn't have any effect. After disabling the LCD it is still on (but the status display of i810switch claims that is is switched off). | * i810switch doesn't have any effect. After disabling the LCD it is still on (but the status display of i810switch claims that is is switched off). | ||
| Line 9: | Line 11: | ||
* i855crt doesn't seem to allow to change the state of the internal LCD. | * i855crt doesn't seem to allow to change the state of the internal LCD. | ||
| − | * | + | * With [[ibm-acpi]] {{cmdroot|echo lcd_disable >/proc/acpi/ibm/video}} works, but {{cmdroot|echo lcd_enable >/proc/acpi/ibm/video}} doesn't work - so one can't enable it anymore after disabling it. (the strange thing is that when switching to a console with {{key|ctrl}}{{key|alt}}{{key|F1}} the LCD display is used for it, so there must be some way to enable it but I can't find out how to control this in X). I've tried this with version 0.8 and version 0.11 of [[ibm-acpi]]. |
| + | |||
| + | ===Problems with ATI chipsets=== | ||
| + | *It is a [http://bugs.freedesktop.org/show_bug.cgi?id=2000 known issue] of xorgs radeon driver that Fn+F7 doesn't work. | ||
==Related Links== | ==Related Links== | ||
Revision as of 13:13, 6 January 2006
Contents
Affected Models
Problem Description
Problems with Intel chipsets
Disabling the internal LCD (e.g. when using an external Monitor) doesn't seem to work reliably.
- i810switch doesn't have any effect. After disabling the LCD it is still on (but the status display of i810switch claims that is is switched off).
- i855crt doesn't seem to allow to change the state of the internal LCD.
- With ibm-acpi
# echo lcd_disable >/proc/acpi/ibm/videoworks, but# echo lcd_enable >/proc/acpi/ibm/videodoesn't work - so one can't enable it anymore after disabling it. (the strange thing is that when switching to a console with ctrlaltF1 the LCD display is used for it, so there must be some way to enable it but I can't find out how to control this in X). I've tried this with version 0.8 and version 0.11 of ibm-acpi.
Problems with ATI chipsets
- It is a known issue of xorgs radeon driver that Fn+F7 doesn't work.
Related Links
Solutions
None (yet).
