Opened 14 years ago
Last modified 4 years ago
#5606 assigned bug
Running on secondary monitor via VGA Extension port not work [ on laptops ]
| Reported by: | streak | Owned by: | nobody |
|---|---|---|---|
| Priority: | normal | Milestone: | R1.1 |
| Component: | Drivers/Graphics/intel_extreme/9xx | Version: | R1/Development |
| Keywords: | dual head, video | Cc: | stormbind@… |
| Blocked By: | Blocking: | ||
| Platform: | x86 |
Description
Running Haiku on secondary monitor via VGA Extension port not work [ on laptops ]
Checked it with: MSI Wind Advent 4211-B EiSystem laptop
Graphic Card in these laptops: Mobile Intel 945 Express Chipset Family [MSI Wind] Intel 943GML (Calistoga) [EiSystem Laptop]
Attachments (1)
Change History (10)
comment:1 by , 14 years ago
| Cc: | added |
|---|---|
| Keywords: | dual head video added |
| Platform: | All → x86 |
| Priority: | normal → high |
by , 14 years ago
| Attachment: | syslog.zip added |
|---|
comment:4 by , 7 years ago
| Owner: | changed from to |
|---|---|
| Status: | new → assigned |
comment:6 by , 5 years ago
| Component: | Drivers/Graphics/intel_extreme → Drivers/Graphics/intel_extreme/9xx |
|---|
comment:7 by , 4 years ago
Please test with hrev53787 or later, there have been many fixes to the driver which should help with this.
comment:8 by , 4 years ago
| Milestone: | R1 → R1.1 |
|---|
comment:9 by , 4 years ago
I can confirm that this is still a problem on my gm965 system (Dell Inspiron 1525). It seems a bit better than what's described here but there is still some mixup of video modes.
What happens:
- We take the native resolution of the exernal display
- We try to scale it using the panel fitter for the internal display
- But the panel fitter doesn't work very well for scaling down, resulting in strange things.
Possibly this is not the only problem.
On the external display I did not manage to display anything so far.
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I can confirm there's a problem when attempting to use the Dual Head on the Intel 945 Express. This presents a significant visual miscalculation to users of netbooks and many entry-level laptops.
Without looking at any logs - it appears that the values that define each monitor are being mixed, and consequently, the visual output can be unusable. For example, the output on desktop display is scaled to the width of the 2nd vdu and scaled to the height of the 1st vdu, and finally clipped/cropped (not rescaled) to the resolution of the 1st vdu. In other words its a mess.
No Dual Head features are provided in the display settings and the reported resolution matches the clipping but not the rendering. Did that make sense?