[Bug 27184] Radeon, KMS, 6.12.99: Sleeping screen doesn't wake up reliably

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=27184

--- Comment #19 from tomi.orava at ncircle.nullnet.fi 2012-02-14 10:43:41 PST ---
Sorry about the disappearence for a long time. I thought I had enabled the notifications for this bug.

It seems that I still have this very same problem even with kernel.org 3.2.5 kernel. The previously mentioned workaround "xset dpms 0 240 0" that helped
someone, did not work in my setup at all.

In case the following debug info helps at all:

get-edid | parse-edid
get-edid: get-edid version 2.0.0

    Performing real mode VBE call
    Interrupt 0x10 ax=0x4f00 bx=0x0 cx=0x0
    Function supported
    Call successful

    VBE version 300
    VBE string at 0xc0204 "ATI ATOMBIOS"

VBE/DDC service about to be called
    Report DDC capabilities

    Performing real mode VBE call
    Interrupt 0x10 ax=0x4f15 bx=0x0 cx=0x0
    Function supported
    Call successful

    Monitor and video card combination does not support DDC1 transfers
    Monitor and video card combination supports DDC2 transfers
    0 seconds per 128 byte EDID block transfer
    Screen is not blanked during DDC transfer

Reading next EDID block

VBE/DDC service about to be called
    Read EDID

    Performing real mode VBE call
    Interrupt 0x10 ax=0x4f15 bx=0x1 cx=0x0
[/pub/linux/kernel]
alderan#root>get-edid | parse-edid 2>&1 
get-edid: get-edid version 2.0.0

    Performing real mode VBE call
    Interrupt 0x10 ax=0x4f00 bx=0x0 cx=0x0
    Function supported
    Call successful

    VBE version 300
    VBE string at 0xc0204 "ATI ATOMBIOS"

VBE/DDC service about to be called
    Report DDC capabilities

    Performing real mode VBE call
    Interrupt 0x10 ax=0x4f15 bx=0x0 cx=0x0
    Function supported
    Call successful

    Monitor and video card combination does not support DDC1 transfers
    Monitor and video card combination supports DDC2 transfers
    0 seconds per 128 byte EDID block transfer
    Screen is not blanked during DDC transfer

Reading next EDID block

VBE/DDC service about to be called
    Read EDID

    Performing real mode VBE call
    Interrupt 0x10 ax=0x4f15 bx=0x1 cx=0x0
parse-edid: parse-edid version 2.0.0
    Function supported
    Call successful

parse-edid: EDID checksum passed.

    # EDID version 1 revision 3
Section "Monitor"
    # Block type: 2:0 3:ff
    # Block type: 2:0 3:fd
    # Block type: 2:0 3:fc
    Identifier "BenQ G2400W"
    VendorName "BNQ"
    ModelName "BenQ G2400W"
    # Block type: 2:0 3:ff
    # Block type: 2:0 3:fd
    HorizSync 31-94
    VertRefresh 50-85
    # Max dot clock (video bandwidth) 170 MHz
    # Block type: 2:0 3:fc
    # DPMS capabilities: Active off:yes  Suspend:no  Standby:no

    Mode     "1920x1200"    # vfreq 59.950Hz, hfreq 74.038kHz
        DotClock    154.000000
        HTimings    1920 1968 2000 2080
        VTimings    1200 1203 1209 1235
        Flags    "-HSync" "+VSync"
    EndMode
    # Block type: 2:0 3:ff
    # Block type: 2:0 3:fd
    # Block type: 2:0 3:fc
EndSection

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