diff options
| author | Roland Mainz <roland.mainz@nrubsig.org> | 2004-12-16 23:55:03 +0000 |
|---|---|---|
| committer | Roland Mainz <roland.mainz@nrubsig.org> | 2004-12-16 23:55:03 +0000 |
| commit | 5ffd2ba72362543c394c6349fc0c82c2bca450f1 (patch) | |
| tree | d0faf9647820cf66d05f80bf0abce54538e94b80 /src | |
| parent | 471b52a35373b0e638403a1220135b9bc0ca7001 (diff) | |
Bugzilla #1890 (https://bugs.freedesktop.org/show_bug.cgi?id=1890)
attachment #1331 (https://bugs.freedesktop.org/attachment.cgi?id=1331):
Apply Debian patch to re-POST via VBE if driver thinks it has no video
memory (a symptom of incompletely coming up from D3 power state), which
fixes some Dell laptops This enables resume from suspend level S3 by
asking the Radeon chip if it thinks it has no memory. If so, the card
is re-POSTed via the int10 interface. Reportedly enables the driver to
work for this type of suspend/resume cycle on Dell D600 laptops (Dell
D800s as well, if the video BIOS is patched to 4.28.20.31.C1 or later).
See Debian Bug #234575. This patch by Emmanuel Thome and Ole Rohne.
Diffstat (limited to 'src')
| -rw-r--r-- | src/radeon_driver.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/radeon_driver.c b/src/radeon_driver.c index 86e44111..8bf3646a 100644 --- a/src/radeon_driver.c +++ b/src/radeon_driver.c @@ -365,6 +365,7 @@ static const char *int10Symbols[] = { "xf86InitInt10", "xf86FreeInt10", "xf86int10Addr", + "xf86ExecX86int10", NULL }; @@ -7168,9 +7169,22 @@ Bool RADEONEnterVT(int scrnIndex, int flags) { ScrnInfoPtr pScrn = xf86Screens[scrnIndex]; RADEONInfoPtr info = RADEONPTR(pScrn); + unsigned char *RADEONMMIO = info->MMIO; RADEONTRACE(("RADEONEnterVT\n")); + if (INREG(RADEON_CONFIG_MEMSIZE) == 0) { /* Softboot V_BIOS */ + xf86Int10InfoPtr pInt; + xf86DrvMsg(pScrn->scrnIndex, X_WARNING, + "zero MEMSIZE, probably at D3cold. Re-POSTing via int10.\n"); + pInt = xf86InitInt10 (info->pEnt->index); + if (pInt) { + pInt->num = 0xe6; + xf86ExecX86int10 (pInt); + xf86FreeInt10 (pInt); + } + } + if (info->FBDev) { unsigned char *RADEONMMIO = info->MMIO; if (!fbdevHWEnterVT(scrnIndex,flags)) return FALSE; |