| Summary: | Resolution of laptop and external projector no longer correct with Radeon driver | ||||||
|---|---|---|---|---|---|---|---|
| Product: | xorg | Reporter: | Graham Freeman <g-freeman> | ||||
| Component: | Driver/Radeon | Assignee: | Xorg Project Team <xorg-team> | ||||
| Status: | RESOLVED DUPLICATE | QA Contact: | |||||
| Severity: | normal | ||||||
| Priority: | high | CC: | g-freeman, mjs | ||||
| Version: | 7.0.0 | ||||||
| Hardware: | x86 (IA32) | ||||||
| OS: | Linux (All) | ||||||
| Whiteboard: | |||||||
| i915 platform: | i915 features: | ||||||
| Attachments: |
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Created attachment 5892 [details]
The log file obtained from the xorg.conf file generated during installation of Fedora 5, with the projector connected to the laptop.
I'm seeing this on my Thinkpad T41 (Radeon Mobility M7 LW [Radeon Mobility 7500]). It is a showstopper for using the machine in teaching or making professional presentations. Please consider this bug serious! When X starts connected to the projector, xrandr reports: $ xrandr SZ: Pixels Physical Refresh *0 848 x 480 ( 287mm x 163mm ) *-25880 Current rotation - normal Current reflection - none Rotations possible - normal Reflections possible - none Changing resolutions through xrandr is not possible. When X starts not connected, xrandr report looks normal and resolution can be changed, but there is no mode that provides a signal to the projector. "radeontool dac on" has no effect either. If I switch to a VC, the image is projected. $ xrandr SZ: Pixels Physical Refresh *0 1024 x 768 ( 347mm x 260mm ) *60 1 800 x 600 ( 347mm x 260mm ) 60 2 640 x 350 ( 347mm x 260mm ) 60 3 640 x 400 ( 347mm x 260mm ) 60 4 720 x 400 ( 347mm x 260mm ) 60 5 640 x 480 ( 347mm x 260mm ) 60 6 832 x 624 ( 347mm x 260mm ) 60 7 848 x 480 ( 347mm x 260mm ) 60 Current rotation - normal Current reflection - none Rotations possible - normal Reflections possible - none I use the kernel radeonfb driver, which is necessary in order to power the graphics card down when suspending to RAM. |
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I have an IBM ThinkPad with an ATI Mobility FireGL 7800 M7 LX (AGP) chipset, upon which I have just installed Fedora 5. Previously, I had Fedore 4 running without problem. There is no problem with the laptop screen unless an external data projector is connected. The symptoms then depend on which projector is used. A small Epsom presents the same 1280x1024 resolution to the projector as is shown on the screen. Other connections cause xorg to change to a resolution of 848x480, which does not match the aspect ratio of the screen, so the output is tall and narrow, and is unsufficient resolution for most purposes. On one machine, the laptop screen has this bad resolution, and the projector reports no signal. I did not have these problems with the version of the Radeon driver which accompanied Fedora 4. However, it was necessary to include in xorg.conf the lines: --------------------------------------------------------------------------- Section "Monitor" Identifier "Monitor1" HorizSync 31.5-67 VertRefresh 50-75 EndSection Section "Device" Identifier "Videocard0" Driver "radeon" VendorName "Videocard vendor" BoardName "ATI Mobility FireGL 7800" Option "AGPMode" "4" Option "AGPFastWrite" "1" Option "BusType" "AGP" Option "MonitorLayout" "LVDS, CRT" Option "DynamicClocks" "on" Option "DPMS" "on" EndSection Section "Device" Identifier "ATI1" Driver "radeon" Option "DynamicClocks" "on" Option "DPMS" "on" BusID "PCI:1:0:0" Option "hw cursor" "off" Screen 1 EndSection Section "Screen" Identifier "Screen1" Device "ATI1" Monitor "Monitor1" DefaultDepth 16 Subsection "Display" Depth 16 Modes "1280x1024" "1024x768" "800x600" "640x480" ViewPort 0 0 EndSubsection EndSection --------------------------------------------------------------------------- This incantation no longer assists xorg to work properly on the machine.