[RHEL5.6 GA]Cannot recove from power-save mode on a system with Z9s graphics chipset.
Issue
- On RHEL5.6 GA with Z9s graphics chipset and then leaving the server alone for some time and let the monitor enter power saving mode.
- Then we touch the mouse or keyboard to recover from the power saving mode, but the screen is blank.
- The monitor's power lamp changes from orange to green so it seems the power itself has recovered.
- The screen image could be recovered by pressing Ctrl+Alt+Fn to switch to another console and pressing Ctrl+Alt+F7 to switch back.
- When the monitor enters power saving mode, the following lines are appended to Xorg.0.log.
-------- (II) XGI(0): XGIDisplayPowerManagementSet(2) XGISetDPMS(VESA_POWER_STATE = 0x200)... XGI - No valid address of VBIOS ROM! XGIPowerSaving()...Begin Turn off DAC1... Turn off DVO... Turn on DAC2... XGIPowerSaving()...End --------
- Then, by touching the mouse or keyboard. The screen is still black.
-------- (II) XGI(0): XGIDisplayPowerManagementSet(0) XGISetDPMS(VESA_POWER_STATE = 0x0)... XGI - No valid address of VBIOS ROM! SetGrabKeysState - enabled --------
- By switching to another virtual console by pressing Ctrl+Alt+F2.
-------- (II) XGI(0): vgaHWGetIOBase: hwp->IOBase is 0x03d0, hwp->PIOOffset is 0x2c80 Part2 0 = ff (II) Open ACPI successful (/var/run/acpid.socket) --------
- By Switching back by Ctrl+Alt+F7. Image displayed as before.
-------- (II) XGI(0): vgaHWGetIOBase: hwp->IOBase is 0x03d0, hwp->PIOOffset is 0x2c80 (II) XGI(0): vgaHWGetIOBase: hwp->IOBase is 0x03d0, hwp->PIOOffset is 0x2c80 (II) XGI(0): vgaHWGetIOBase: hwp->IOBase is 0x03d0, hwp->PIOOffset is 0x2c80 (II) XGI(0): Setting a standard mode 0x64 Part2 0 = ff XGISetDPMS(VESA_POWER_STATE = 0x0)... XGI - No valid address of VBIOS ROM! AdjustFrame 0 (II) <default pointer>: ps2EnableDataReporting: succeeded --------
Environment
- Red Hat Enterprise Linux 5.6 GA
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