From mboxrd@z Thu Jan 1 00:00:00 1970 From: Erik Slagter Subject: Re: Problem with Dell laptop's backlight on resume Date: Mon, 17 Oct 2005 11:56:06 +0200 Message-ID: <1129542966.5945.15.camel@localhost.localdomain> References: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=sha1; protocol="application/x-pkcs7-signature"; boundary="=-NQyt6LUVmcXfb+He2mYv" Return-path: In-Reply-To: Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Alan Stern Cc: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org --=-NQyt6LUVmcXfb+He2mYv Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Sun, 2005-10-16 at 13:57 -0400, Alan Stern wrote: > With 2.6.14-rc4, when I suspend and resume my Dell Inspiron 4000 laptop > the backlight doesn't act as it should. (BTW this behavior has been=20 > unchanged for many kernel releases.) >=20 > When I go to standby, the backlight remains on. >=20 > When I suspend to memory, the backlight remains on and the screen goes=20 > blank -- a rather disconcerting fully-white screen. Then when I resume=20 > the backlight turns off, making the text-mode console invisible. =20 > Fortunately switching to-and-from an XFree86 screen gets the light back=20 > on. This is a known problem with the 4000's. I don't think it will ever work right. Better focus on software suspend (aka suspend to disk). --=-NQyt6LUVmcXfb+He2mYv Content-Type: application/x-pkcs7-signature; name=smime.p7s Content-Disposition: attachment; filename=smime.p7s Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIGFjCCAs8w ggI4oAMCAQICAw9TczANBgkqhkiG9w0BAQQFADBiMQswCQYDVQQGEwJaQTElMCMGA1UEChMcVGhh d3RlIENvbnN1bHRpbmcgKFB0eSkgTHRkLjEsMCoGA1UEAxMjVGhhd3RlIFBlcnNvbmFsIEZyZWVt YWlsIElzc3VpbmcgQ0EwHhcNMDUwODE4MTE1NDA1WhcNMDYwODE4MTE1NDA1WjBDMR8wHQYDVQQD ExZUaGF3dGUgRnJlZW1haWwgTWVtYmVyMSAwHgYJKoZIhvcNAQkBFhFlcmlrQHNsYWd0ZXIubmFt ZTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBANAMKW15OgreNb+Wd++Xcw6uNJUXXIfX 56u1rtTObMmbbDY2wNc4Iqwbuwaysvox3z+YElXBibE8BAyV1iMjhee4mOfAy38dGHtWDxhOGke8 VpkyY8DSWgMN5p4egTiT6YNdHW75iiQ+Vh5zMHju1UXnIqgf5zkUGkNuxYp15jLZvRDbfA5H+Sil jbZGB2fiPOJHpyI61ZidcMgdow31qm70/oe6vXxhSZLzo7OLvExE+mQHwbCSIJMN/hPTK1z0lmQ1 kkaEjHrefqIgoF9Dk/WfOtulzvR3xBzDL50GZ32BxT/OhXYe1SHEJpSM1S/aq8TBQJYwjzREWyDh 0OYsmr0CAwEAAaMuMCwwHAYDVR0RBBUwE4ERZXJpa0BzbGFndGVyLm5hbWUwDAYDVR0TAQH/BAIw ADANBgkqhkiG9w0BAQQFAAOBgQCCpzoneRQIKsUO8zSnwQ7yhJTrS/EaDibiIVrkkCbzXwCiHFAi 7nmTRF0DlLVF3Ssf97ITWT/RSdkj9Xke0OHH7724PJdfpA6OglMnx2i7IcJLzPgPjB+fOmfR0nYX UYKuzGxTOXmshLmPcwKdpFuRLLk7n+vrTAwJYJI++crhJzCCAz8wggKooAMCAQICAQ0wDQYJKoZI hvcNAQEFBQAwgdExCzAJBgNVBAYTAlpBMRUwEwYDVQQIEwxXZXN0ZXJuIENhcGUxEjAQBgNVBAcT CUNhcGUgVG93bjEaMBgGA1UEChMRVGhhd3RlIENvbnN1bHRpbmcxKDAmBgNVBAsTH0NlcnRpZmlj YXRpb24gU2VydmljZXMgRGl2aXNpb24xJDAiBgNVBAMTG1RoYXd0ZSBQZXJzb25hbCBGcmVlbWFp bCBDQTErMCkGCSqGSIb3DQEJARYccGVyc29uYWwtZnJlZW1haWxAdGhhd3RlLmNvbTAeFw0wMzA3 MTcwMDAwMDBaFw0xMzA3MTYyMzU5NTlaMGIxCzAJBgNVBAYTAlpBMSUwIwYDVQQKExxUaGF3dGUg Q29uc3VsdGluZyAoUHR5KSBMdGQuMSwwKgYDVQQDEyNUaGF3dGUgUGVyc29uYWwgRnJlZW1haWwg SXNzdWluZyBDQTCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEAxKY8VXNV+065yplaHmjAdQRw nd/p/6Me7L3N9VvyGna9fww6YfK/Uc4B1OVQCjDXAmNaLIkVcI7dyfArhVqqP3FWy688Cwfn8R+R NiQqE88r1fOCdz0Dviv+uxg+B79AgAJk16emu59l0cUqVIUPSAR/p7bRPGEEQB5kGXJgt/sCAwEA AaOBlDCBkTASBgNVHRMBAf8ECDAGAQH/AgEAMEMGA1UdHwQ8MDowOKA2oDSGMmh0dHA6Ly9jcmwu dGhhd3RlLmNvbS9UaGF3dGVQZXJzb25hbEZyZWVtYWlsQ0EuY3JsMAsGA1UdDwQEAwIBBjApBgNV HREEIjAgpB4wHDEaMBgGA1UEAxMRUHJpdmF0ZUxhYmVsMi0xMzgwDQYJKoZIhvcNAQEFBQADgYEA SIzRUIPqCy7MDaNmrGcPf6+svsIXoUOWlJ1/TCG4+DYfqi2fNi/A9BxQIJNwPP2t4WFiw9k6GX6E sZkbAMUaC4J0niVQlGLH2ydxVyWN3amcOY6MIE9lX5Xa9/eH1sYITq726jTlEBpbNU1341YheILc IRk13iSx0x1G/11fZU8xggHvMIIB6wIBATBpMGIxCzAJBgNVBAYTAlpBMSUwIwYDVQQKExxUaGF3 dGUgQ29uc3VsdGluZyAoUHR5KSBMdGQuMSwwKgYDVQQDEyNUaGF3dGUgUGVyc29uYWwgRnJlZW1h aWwgSXNzdWluZyBDQQIDD1NzMAkGBSsOAwIaBQCgXTAYBgkqhkiG9w0BCQMxCwYJKoZIhvcNAQcB MBwGCSqGSIb3DQEJBTEPFw0wNTEwMTcwOTU2MDRaMCMGCSqGSIb3DQEJBDEWBBQKcuF80G0G22i4 7GQ2ZvbfK95+STANBgkqhkiG9w0BAQEFAASCAQAeHUQEDc0C1JPVExnkRGaRO3j+ae+Nu2ee6q9r bbiKYky453XSOdiZuvN/TyeX3bOTxVVofhIypxVwbUqhZqTwuUALFott/d+zEqWfNyOOXfPndYiu nIaiSK7HIKb2GAokNlcINs9/4D3M95OxcAsii9Ye/GEDMuB0CjsgzFRr8yKkf2gZKEAhkTmGnErA CetFv9oq8ZOqsQy2vF4shW/kvE2AH7NrEGW3z4Vl13DzOsMo+u6TiUr4l0Gx0iV6yXzEJ5pA4vcg VJMJ/1s7iy5ZQuaS/LtQu0tyPe4TnbsOtDqOLIFOvpLuisrhDIwqrqBdIO5IBQKFOLMWKhZBuKgr AAAAAAAA --=-NQyt6LUVmcXfb+He2mYv-- ------------------------------------------------------- This SF.Net email is sponsored by: Power Architecture Resource Center: Free content, downloads, discussions, and more. http://solutions.newsforge.com/ibmarch.tmpl