Radeon framebuffer problems i 2.6.0-test6

From: Henrik Christian Grove (grove_at_sslug.dk)
Date: 09/30/03

  • Next message: Matt Gibson: "Re: Complaint: Wacom driver in 2.6" 
    To: linux-kernel@vger.kernel.org
Date:	30 Sep 2003 22:12:38 +0200

    Hi

    Searching through the archives I have found some reports of problems
    with the radeon framebuffer, but done that seems to fully match my
    experiences.

    I have an Asus L3800C laptop with a Radeon Mobility 7500 graphics
    chip.

    I have made three slightly different 2.6.0-test6 kernels, called
    test6-1, test6-2 and test6-3. The only differences are what framebuffer
    drivers are included. Test6-1 includes both the vga16 driver and the
    radeon driver, test6-2 only includes the radeon driver, and test6-3 only
    includes the vga16 driver.

    All three kernels boot, and everything seems to run fine.

    With test6-3 I get a fully functional framebuffer running 640x480-59.

    With test6-2 I get a framebuffer that looks like it has a sync
    problem. Horizontal lines are horizontal, but vertical lines are
    displayed as individual dots, for each horizontal line of pixels 8
    pixels further right.

    With test6-1 I get the ASUS logo (which is displayed during POST) with
    vertical green and blue lines running from near the top of the screen
    and about 3/4 of the way down. At the top of the screen are some moving
    white pixels.

    Output of `lspci`:
    00:00.0 Host bridge: Intel Corp. 82845 845 (Brookdale) Chipset Host Bridge (rev 04)
    00:01.0 PCI bridge: Intel Corp. 82845 845 (Brookdale) Chipset AGP Bridge (rev 04)
    00:1d.0 USB Controller: Intel Corp. 82801CA/CAM USB (Hub #1) (rev 02)
    00:1d.1 USB Controller: Intel Corp. 82801CA/CAM USB (Hub #2) (rev 02)
    00:1e.0 PCI bridge: Intel Corp. 82801BAM/CAM PCI Bridge (rev 42)
    00:1f.0 ISA bridge: Intel Corp. 82801CAM ISA Bridge (LPC) (rev 02)
    00:1f.1 IDE interface: Intel Corp. 82801CAM IDE U100 (rev 02)
    00:1f.5 Multimedia audio controller: Intel Corp. 82801CA/CAM AC'97 Audio (rev 02)
    00:1f.6 Modem: Intel Corp. 82801CA/CAM AC'97 Modem (rev 02)
    01:00.0 VGA compatible controller: ATI Technologies Inc Radeon Mobility M7 LW [Radeon Mobility 7500]
    02:05.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
    02:07.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev a8)
    02:07.1 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev a8)
    02:07.2 FireWire (IEEE 1394): Ricoh Co Ltd R5C552 IEEE 1394 Controller

    I have attached the configuration file for test6-1, here are the diffs
    for the two other kernels.

    grove@julia:/boot% diff -u config-2.6.0-test6-1 config-2.6.0-test6-2
    --- config-2.6.0-test6-1 2003-09-30 15:49:06.000000000 +0200
    +++ config-2.6.0-test6-2 2003-09-30 15:51:45.000000000 +0200
    @@ -1083,7 +1083,7 @@
     CONFIG_FB=y
     # CONFIG_FB_CYBER2000 is not set
     # CONFIG_FB_IMSTT is not set
    -CONFIG_FB_VGA16=y
    +# CONFIG_FB_VGA16 is not set
     # CONFIG_FB_VESA is not set
     # CONFIG_VIDEO_SELECT is not set
     # CONFIG_FB_HGA is not set
    grove@julia:/boot% diff -u config-2.6.0-test6-1 config-2.6.0-test6-3
    --- config-2.6.0-test6-1 2003-09-30 15:49:06.000000000 +0200
    +++ config-2.6.0-test6-3 2003-09-30 15:52:44.000000000 +0200
    @@ -1090,7 +1090,7 @@
     # CONFIG_FB_RIVA is not set
     # CONFIG_FB_I810 is not set
     # CONFIG_FB_MATROX is not set
    -CONFIG_FB_RADEON=y
    +# CONFIG_FB_RADEON is not set
     # CONFIG_FB_ATY128 is not set
     # CONFIG_FB_ATY is not set
     # CONFIG_FB_SIS is not set
    grove@julia:/boot%

    .Henrik 

    

    


    -- 
Jacob: Because the theoreticians told me.
Prof. Vassilicos: Why do you believe theoreticians?
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  • Next message: Matt Gibson: "Re: Complaint: Wacom driver in 2.6"